; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X86,X86-NOBMI ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X86,X86-BMINOTBM,X86-BMI1 ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X86,X86-BMITBM,X86-BMI1 ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X86,X86-BMITBM,X86-BMI2 ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X86,X86-BMINOTBM,X86-BMI2 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X64,X64-NOBMI ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X64,X64-BMINOTBM,X64-BMI1 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X64,X64-BMITBM,X64-BMI1 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X64,X64-BMITBM,X64-BMI2 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2,+fast-bextr < %s | FileCheck %s --check-prefixes=X64,X64-BMINOTBM,X64-BMI2 ; *Please* keep in sync with test/CodeGen/AArch64/extract-bits.ll ; https://bugs.llvm.org/show_bug.cgi?id=36419 ; https://bugs.llvm.org/show_bug.cgi?id=37603 ; https://bugs.llvm.org/show_bug.cgi?id=37610 ; Patterns: ; a) (x >> start) & (1 << nbits) - 1 ; b) (x >> start) & ~(-1 << nbits) ; c) (x >> start) & (-1 >> (32 - y)) ; d) (x >> start) << (32 - y) >> (32 - y) ; are equivalent. declare void @use32(i32) declare void @use64(i64) ; ---------------------------------------------------------------------------- ; ; Pattern a. 32-bit ; ---------------------------------------------------------------------------- ; define i32 @bextr32_a0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_a0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_a0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: orl %eax, %ecx ; X86-BMI1-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_a0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_a0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %edi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_a0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_a0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %onebit = shl i32 1, %numlowbits %mask = add nsw i32 %onebit, -1 %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_a0_arithmetic(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_a0_arithmetic: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: sarl %cl, %esi ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_a0_arithmetic: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: sarl %cl, %edx ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: bextrl %eax, %edx, %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_a0_arithmetic: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: sarxl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_a0_arithmetic: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: sarl %cl, %edi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_a0_arithmetic: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: movl %esi, %ecx ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-BMI1-NEXT: sarl %cl, %edi ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: bextrl %edx, %edi, %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_a0_arithmetic: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: sarxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = ashr i32 %val, %numskipbits %onebit = shl i32 1, %numlowbits %mask = add nsw i32 %onebit, -1 %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_a1_indexzext(i32 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_a1_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_a1_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: orl %eax, %ecx ; X86-BMI1-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_a1_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_a1_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %edi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_a1_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_a1_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %skip = zext i8 %numskipbits to i32 %shifted = lshr i32 %val, %skip %conv = zext i8 %numlowbits to i32 %onebit = shl i32 1, %conv %mask = add nsw i32 %onebit, -1 %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_a2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_a2_load: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_a2_load: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shll $8, %ecx ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: orl %ecx, %edx ; X86-BMI1-NEXT: bextrl %edx, (%eax), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_a2_load: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI2-NEXT: shrxl %edx, (%ecx), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_a2_load: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl (%rdi), %esi ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %esi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %esi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_a2_load: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, (%rdi), %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_a2_load: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, (%rdi), %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %val = load i32, i32* %w %shifted = lshr i32 %val, %numskipbits %onebit = shl i32 1, %numlowbits %mask = add nsw i32 %onebit, -1 %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_a3_load_indexzext(i32* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_a3_load_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_a3_load_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shll $8, %ecx ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: orl %ecx, %edx ; X86-BMI1-NEXT: bextrl %edx, (%eax), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_a3_load_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI2-NEXT: shrxl %edx, (%ecx), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_a3_load_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl (%rdi), %esi ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %esi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %esi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_a3_load_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, (%rdi), %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_a3_load_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, (%rdi), %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %val = load i32, i32* %w %skip = zext i8 %numskipbits to i32 %shifted = lshr i32 %val, %skip %conv = zext i8 %numlowbits to i32 %onebit = shl i32 1, %conv %mask = add nsw i32 %onebit, -1 %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_a4_commutative(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_a4_commutative: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_a4_commutative: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: orl %eax, %ecx ; X86-BMI1-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_a4_commutative: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_a4_commutative: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %edi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_a4_commutative: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_a4_commutative: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %onebit = shl i32 1, %numlowbits %mask = add nsw i32 %onebit, -1 %masked = and i32 %shifted, %mask ; swapped order ret i32 %masked } define i32 @bextr32_a5_skipextrauses(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_a5_skipextrauses: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %ecx ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: movl $1, %esi ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %esi ; X86-NOBMI-NEXT: decl %esi ; X86-NOBMI-NEXT: andl %edi, %esi ; X86-NOBMI-NEXT: movl %eax, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: addl $4, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_a5_skipextrauses: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: shll $8, %ecx ; X86-BMI1-NEXT: movzbl %al, %edx ; X86-BMI1-NEXT: orl %ecx, %edx ; X86-BMI1-NEXT: bextrl %edx, {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl %eax, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: addl $8, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_a5_skipextrauses: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: bzhil %eax, %edx, %esi ; X86-BMI2-NEXT: movl %ecx, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: addl $8, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_a5_skipextrauses: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: shrl %cl, %edi ; X64-NOBMI-NEXT: movl $1, %ebx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %ebx ; X64-NOBMI-NEXT: decl %ebx ; X64-NOBMI-NEXT: andl %edi, %ebx ; X64-NOBMI-NEXT: movl %esi, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: movl %ebx, %eax ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_a5_skipextrauses: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %ebx ; X64-BMI1-NEXT: movl %esi, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: movl %ebx, %eax ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_a5_skipextrauses: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %ebx ; X64-BMI2-NEXT: movl %esi, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %onebit = shl i32 1, %numlowbits %mask = add nsw i32 %onebit, -1 %masked = and i32 %mask, %shifted call void @use32(i32 %numskipbits) ret i32 %masked } ; 64-bit define i64 @bextr64_a0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_a0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB7_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB7_2: ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shldl %cl, %eax, %edx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: je .LBB7_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB7_4: ; X86-NOBMI-NEXT: addl $-1, %eax ; X86-NOBMI-NEXT: adcl $-1, %edx ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_a0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB7_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB7_2: ; X86-BMI1-NEXT: movl $1, %eax ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: movb %ch, %cl ; X86-BMI1-NEXT: shldl %cl, %eax, %edx ; X86-BMI1-NEXT: shll %cl, %eax ; X86-BMI1-NEXT: testb $32, %ch ; X86-BMI1-NEXT: je .LBB7_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB7_4: ; X86-BMI1-NEXT: addl $-1, %eax ; X86-BMI1-NEXT: adcl $-1, %edx ; X86-BMI1-NEXT: andl %esi, %eax ; X86-BMI1-NEXT: andl %edi, %edx ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_a0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB7_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB7_2: ; X86-BMI2-NEXT: movl $1, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: movl %ebx, %ecx ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ebx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB7_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB7_4: ; X86-BMI2-NEXT: addl $-1, %eax ; X86-BMI2-NEXT: adcl $-1, %edx ; X86-BMI2-NEXT: andl %esi, %eax ; X86-BMI2-NEXT: andl %edi, %edx ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_a0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: decq %rax ; X64-NOBMI-NEXT: andq %rdi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_a0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_a0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %onebit = shl i64 1, %numlowbits %mask = add nsw i64 %onebit, -1 %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_a0_arithmetic(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_a0_arithmetic: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %esi ; X86-NOBMI-NEXT: sarl %cl, %esi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %edi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB8_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: sarl $31, %eax ; X86-NOBMI-NEXT: movl %esi, %edi ; X86-NOBMI-NEXT: movl %eax, %esi ; X86-NOBMI-NEXT: .LBB8_2: ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shldl %cl, %eax, %edx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: je .LBB8_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB8_4: ; X86-NOBMI-NEXT: addl $-1, %eax ; X86-NOBMI-NEXT: adcl $-1, %edx ; X86-NOBMI-NEXT: andl %edi, %eax ; X86-NOBMI-NEXT: andl %esi, %edx ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_a0_arithmetic: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl %eax, %esi ; X86-BMI1-NEXT: sarl %cl, %esi ; X86-BMI1-NEXT: shrdl %cl, %eax, %edi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB8_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: sarl $31, %eax ; X86-BMI1-NEXT: movl %esi, %edi ; X86-BMI1-NEXT: movl %eax, %esi ; X86-BMI1-NEXT: .LBB8_2: ; X86-BMI1-NEXT: movl $1, %eax ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: movb %ch, %cl ; X86-BMI1-NEXT: shldl %cl, %eax, %edx ; X86-BMI1-NEXT: shll %cl, %eax ; X86-BMI1-NEXT: testb $32, %ch ; X86-BMI1-NEXT: je .LBB8_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB8_4: ; X86-BMI1-NEXT: addl $-1, %eax ; X86-BMI1-NEXT: adcl $-1, %edx ; X86-BMI1-NEXT: andl %edi, %eax ; X86-BMI1-NEXT: andl %esi, %edx ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_a0_arithmetic: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: sarxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB8_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: sarl $31, %eax ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: movl %eax, %edi ; X86-BMI2-NEXT: .LBB8_2: ; X86-BMI2-NEXT: movl $1, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: movl %ebx, %ecx ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ebx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB8_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB8_4: ; X86-BMI2-NEXT: addl $-1, %eax ; X86-BMI2-NEXT: adcl $-1, %edx ; X86-BMI2-NEXT: andl %esi, %eax ; X86-BMI2-NEXT: andl %edi, %edx ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_a0_arithmetic: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: sarq %cl, %rdi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: decq %rax ; X64-NOBMI-NEXT: andq %rdi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_a0_arithmetic: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: movq %rsi, %rcx ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-BMI1-NEXT: sarq %cl, %rdi ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: bextrq %rdx, %rdi, %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_a0_arithmetic: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: sarxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %shifted = ashr i64 %val, %numskipbits %onebit = shl i64 1, %numlowbits %mask = add nsw i64 %onebit, -1 %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_a1_indexzext(i64 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_a1_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB9_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB9_2: ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shldl %cl, %eax, %edx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: je .LBB9_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB9_4: ; X86-NOBMI-NEXT: addl $-1, %eax ; X86-NOBMI-NEXT: adcl $-1, %edx ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_a1_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB9_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB9_2: ; X86-BMI1-NEXT: movl $1, %eax ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: movb %ch, %cl ; X86-BMI1-NEXT: shldl %cl, %eax, %edx ; X86-BMI1-NEXT: shll %cl, %eax ; X86-BMI1-NEXT: testb $32, %ch ; X86-BMI1-NEXT: je .LBB9_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB9_4: ; X86-BMI1-NEXT: addl $-1, %eax ; X86-BMI1-NEXT: adcl $-1, %edx ; X86-BMI1-NEXT: andl %esi, %eax ; X86-BMI1-NEXT: andl %edi, %edx ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_a1_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB9_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB9_2: ; X86-BMI2-NEXT: movl $1, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: movl %ebx, %ecx ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ebx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB9_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB9_4: ; X86-BMI2-NEXT: addl $-1, %eax ; X86-BMI2-NEXT: adcl $-1, %edx ; X86-BMI2-NEXT: andl %esi, %eax ; X86-BMI2-NEXT: andl %edi, %edx ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_a1_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: decq %rax ; X64-NOBMI-NEXT: andq %rdi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_a1_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_a1_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: # kill: def $edx killed $edx def $rdx ; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %skip = zext i8 %numskipbits to i64 %shifted = lshr i64 %val, %skip %conv = zext i8 %numlowbits to i64 %onebit = shl i64 1, %conv %mask = add nsw i64 %onebit, -1 %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_a2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_a2_load: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: movl 4(%eax), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB10_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB10_2: ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shldl %cl, %eax, %edx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: je .LBB10_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB10_4: ; X86-NOBMI-NEXT: addl $-1, %eax ; X86-NOBMI-NEXT: adcl $-1, %edx ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_a2_load: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl (%eax), %esi ; X86-BMI1-NEXT: movl 4(%eax), %eax ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB10_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB10_2: ; X86-BMI1-NEXT: movl $1, %eax ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: movb %ch, %cl ; X86-BMI1-NEXT: shldl %cl, %eax, %edx ; X86-BMI1-NEXT: shll %cl, %eax ; X86-BMI1-NEXT: testb $32, %ch ; X86-BMI1-NEXT: je .LBB10_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB10_4: ; X86-BMI1-NEXT: addl $-1, %eax ; X86-BMI1-NEXT: adcl $-1, %edx ; X86-BMI1-NEXT: andl %esi, %eax ; X86-BMI1-NEXT: andl %edi, %edx ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_a2_load: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl (%eax), %esi ; X86-BMI2-NEXT: movl 4(%eax), %eax ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB10_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB10_2: ; X86-BMI2-NEXT: movl $1, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: movl %ebx, %ecx ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ebx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB10_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB10_4: ; X86-BMI2-NEXT: addl $-1, %eax ; X86-BMI2-NEXT: adcl $-1, %edx ; X86-BMI2-NEXT: andl %esi, %eax ; X86-BMI2-NEXT: andl %edi, %edx ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_a2_load: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq (%rdi), %rsi ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rsi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: decq %rax ; X64-NOBMI-NEXT: andq %rsi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_a2_load: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, (%rdi), %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_a2_load: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %val = load i64, i64* %w %shifted = lshr i64 %val, %numskipbits %onebit = shl i64 1, %numlowbits %mask = add nsw i64 %onebit, -1 %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_a3_load_indexzext(i64* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_a3_load_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: movl 4(%eax), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB11_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB11_2: ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shldl %cl, %eax, %edx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: je .LBB11_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB11_4: ; X86-NOBMI-NEXT: addl $-1, %eax ; X86-NOBMI-NEXT: adcl $-1, %edx ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_a3_load_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl (%eax), %esi ; X86-BMI1-NEXT: movl 4(%eax), %eax ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB11_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB11_2: ; X86-BMI1-NEXT: movl $1, %eax ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: movb %ch, %cl ; X86-BMI1-NEXT: shldl %cl, %eax, %edx ; X86-BMI1-NEXT: shll %cl, %eax ; X86-BMI1-NEXT: testb $32, %ch ; X86-BMI1-NEXT: je .LBB11_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB11_4: ; X86-BMI1-NEXT: addl $-1, %eax ; X86-BMI1-NEXT: adcl $-1, %edx ; X86-BMI1-NEXT: andl %esi, %eax ; X86-BMI1-NEXT: andl %edi, %edx ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_a3_load_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl (%eax), %esi ; X86-BMI2-NEXT: movl 4(%eax), %eax ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB11_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB11_2: ; X86-BMI2-NEXT: movl $1, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: movl %ebx, %ecx ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ebx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB11_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB11_4: ; X86-BMI2-NEXT: addl $-1, %eax ; X86-BMI2-NEXT: adcl $-1, %edx ; X86-BMI2-NEXT: andl %esi, %eax ; X86-BMI2-NEXT: andl %edi, %edx ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_a3_load_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movq (%rdi), %rsi ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrq %cl, %rsi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: decq %rax ; X64-NOBMI-NEXT: andq %rsi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_a3_load_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, (%rdi), %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_a3_load_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: # kill: def $edx killed $edx def $rdx ; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi ; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %val = load i64, i64* %w %skip = zext i8 %numskipbits to i64 %shifted = lshr i64 %val, %skip %conv = zext i8 %numlowbits to i64 %onebit = shl i64 1, %conv %mask = add nsw i64 %onebit, -1 %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_a4_commutative(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_a4_commutative: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl %esi, %edx ; X86-NOBMI-NEXT: shrl %cl, %edx ; X86-NOBMI-NEXT: shrdl %cl, %esi, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB12_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: .LBB12_2: ; X86-NOBMI-NEXT: movl $1, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shldl %cl, %esi, %edi ; X86-NOBMI-NEXT: shll %cl, %esi ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: je .LBB12_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %esi, %edi ; X86-NOBMI-NEXT: xorl %esi, %esi ; X86-NOBMI-NEXT: .LBB12_4: ; X86-NOBMI-NEXT: addl $-1, %esi ; X86-NOBMI-NEXT: adcl $-1, %edi ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_a4_commutative: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %esi, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB12_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edx, %eax ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: .LBB12_2: ; X86-BMI1-NEXT: movl $1, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: movb %ch, %cl ; X86-BMI1-NEXT: shldl %cl, %esi, %edi ; X86-BMI1-NEXT: shll %cl, %esi ; X86-BMI1-NEXT: testb $32, %ch ; X86-BMI1-NEXT: je .LBB12_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %esi, %edi ; X86-BMI1-NEXT: xorl %esi, %esi ; X86-BMI1-NEXT: .LBB12_4: ; X86-BMI1-NEXT: addl $-1, %esi ; X86-BMI1-NEXT: adcl $-1, %edi ; X86-BMI1-NEXT: andl %esi, %eax ; X86-BMI1-NEXT: andl %edi, %edx ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_a4_commutative: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: shrxl %ecx, %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB12_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: .LBB12_2: ; X86-BMI2-NEXT: movl $1, %edi ; X86-BMI2-NEXT: xorl %esi, %esi ; X86-BMI2-NEXT: movl %ebx, %ecx ; X86-BMI2-NEXT: shldl %cl, %edi, %esi ; X86-BMI2-NEXT: shlxl %ebx, %edi, %ecx ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB12_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ecx, %esi ; X86-BMI2-NEXT: xorl %ecx, %ecx ; X86-BMI2-NEXT: .LBB12_4: ; X86-BMI2-NEXT: addl $-1, %ecx ; X86-BMI2-NEXT: adcl $-1, %esi ; X86-BMI2-NEXT: andl %ecx, %eax ; X86-BMI2-NEXT: andl %esi, %edx ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_a4_commutative: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: decq %rax ; X64-NOBMI-NEXT: andq %rdi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_a4_commutative: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_a4_commutative: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %onebit = shl i64 1, %numlowbits %mask = add nsw i64 %onebit, -1 %masked = and i64 %shifted, %mask ; swapped order ret i64 %masked } define i64 @bextr64_a5_skipextrauses(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_a5_skipextrauses: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $12, %esp ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %esi, %ebp ; X86-NOBMI-NEXT: movl %eax, %ecx ; X86-NOBMI-NEXT: shrl %cl, %ebp ; X86-NOBMI-NEXT: shrdl %cl, %esi, %ebx ; X86-NOBMI-NEXT: testb $32, %al ; X86-NOBMI-NEXT: je .LBB13_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %ebp, %ebx ; X86-NOBMI-NEXT: xorl %ebp, %ebp ; X86-NOBMI-NEXT: .LBB13_2: ; X86-NOBMI-NEXT: movl $1, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shldl %cl, %esi, %edi ; X86-NOBMI-NEXT: shll %cl, %esi ; X86-NOBMI-NEXT: testb $32, %dl ; X86-NOBMI-NEXT: je .LBB13_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %esi, %edi ; X86-NOBMI-NEXT: xorl %esi, %esi ; X86-NOBMI-NEXT: .LBB13_4: ; X86-NOBMI-NEXT: addl $-1, %esi ; X86-NOBMI-NEXT: adcl $-1, %edi ; X86-NOBMI-NEXT: andl %ebx, %esi ; X86-NOBMI-NEXT: andl %ebp, %edi ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl {{[0-9]+}}(%esp) ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: movl %edi, %edx ; X86-NOBMI-NEXT: addl $12, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: popl %ebp ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_a5_skipextrauses: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $12, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl %esi, %ebp ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shrl %cl, %ebp ; X86-BMI1-NEXT: shrdl %cl, %esi, %ebx ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: je .LBB13_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %ebp, %ebx ; X86-BMI1-NEXT: xorl %ebp, %ebp ; X86-BMI1-NEXT: .LBB13_2: ; X86-BMI1-NEXT: movl $1, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: movl %edx, %ecx ; X86-BMI1-NEXT: shldl %cl, %esi, %edi ; X86-BMI1-NEXT: shll %cl, %esi ; X86-BMI1-NEXT: testb $32, %dl ; X86-BMI1-NEXT: je .LBB13_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %esi, %edi ; X86-BMI1-NEXT: xorl %esi, %esi ; X86-BMI1-NEXT: .LBB13_4: ; X86-BMI1-NEXT: addl $-1, %esi ; X86-BMI1-NEXT: adcl $-1, %edi ; X86-BMI1-NEXT: andl %ebx, %esi ; X86-BMI1-NEXT: andl %ebp, %edi ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl {{[0-9]+}}(%esp) ; X86-BMI1-NEXT: pushl %eax ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: addl $12, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: popl %ebp ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_a5_skipextrauses: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $12, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl %eax, %ecx ; X86-BMI2-NEXT: shrdl %cl, %esi, %ebx ; X86-BMI2-NEXT: shrxl %eax, %esi, %ebp ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: je .LBB13_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %ebp, %ebx ; X86-BMI2-NEXT: xorl %ebp, %ebp ; X86-BMI2-NEXT: .LBB13_2: ; X86-BMI2-NEXT: movl $1, %edi ; X86-BMI2-NEXT: xorl %esi, %esi ; X86-BMI2-NEXT: movl %edx, %ecx ; X86-BMI2-NEXT: shldl %cl, %edi, %esi ; X86-BMI2-NEXT: shlxl %edx, %edi, %edi ; X86-BMI2-NEXT: testb $32, %dl ; X86-BMI2-NEXT: je .LBB13_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB13_4: ; X86-BMI2-NEXT: addl $-1, %edi ; X86-BMI2-NEXT: adcl $-1, %esi ; X86-BMI2-NEXT: andl %ebx, %edi ; X86-BMI2-NEXT: andl %ebp, %esi ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl {{[0-9]+}}(%esp) ; X86-BMI2-NEXT: pushl %eax ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: movl %edi, %eax ; X86-BMI2-NEXT: movl %esi, %edx ; X86-BMI2-NEXT: addl $12, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: popl %ebp ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_a5_skipextrauses: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $1, %ebx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rbx ; X64-NOBMI-NEXT: decq %rbx ; X64-NOBMI-NEXT: andq %rdi, %rbx ; X64-NOBMI-NEXT: movq %rsi, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: movq %rbx, %rax ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_a5_skipextrauses: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rbx ; X64-BMI1-NEXT: movq %rsi, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: movq %rbx, %rax ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_a5_skipextrauses: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rbx ; X64-BMI2-NEXT: movq %rsi, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: movq %rbx, %rax ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %onebit = shl i64 1, %numlowbits %mask = add nsw i64 %onebit, -1 %masked = and i64 %mask, %shifted call void @use64(i64 %numskipbits) ret i64 %masked } ; 64-bit, but with 32-bit output ; Everything done in 64-bit, truncation happens last. define i32 @bextr64_32_a0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_a0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: shrdl %cl, %edi, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB14_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %esi ; X86-NOBMI-NEXT: .LBB14_2: ; X86-NOBMI-NEXT: movl $1, %edi ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %edi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: testb $32, %dl ; X86-NOBMI-NEXT: jne .LBB14_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %edi, %eax ; X86-NOBMI-NEXT: .LBB14_4: ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_a0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: shrdl %cl, %edi, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB14_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %esi ; X86-BMI1-NEXT: .LBB14_2: ; X86-BMI1-NEXT: movl $1, %edi ; X86-BMI1-NEXT: movl %edx, %ecx ; X86-BMI1-NEXT: shll %cl, %edi ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: testb $32, %dl ; X86-BMI1-NEXT: jne .LBB14_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %edi, %eax ; X86-BMI1-NEXT: .LBB14_4: ; X86-BMI1-NEXT: decl %eax ; X86-BMI1-NEXT: andl %esi, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_a0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB14_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edx ; X86-BMI2-NEXT: .LBB14_2: ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: jne .LBB14_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl $1, %eax ; X86-BMI2-NEXT: shlxl %ebx, %eax, %eax ; X86-BMI2-NEXT: .LBB14_4: ; X86-BMI2-NEXT: decl %eax ; X86-BMI2-NEXT: andl %edx, %eax ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_a0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_a0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_a0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %onebit = shl i64 1, %numlowbits %mask = add nsw i64 %onebit, -1 %masked = and i64 %mask, %shifted %res = trunc i64 %masked to i32 ret i32 %res } ; Shifting happens in 64-bit, then truncation. Masking is 32-bit. define i32 @bextr64_32_a1(i64 %val, i64 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_a1: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: shrdl %cl, %edi, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB15_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %esi ; X86-NOBMI-NEXT: .LBB15_2: ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_a1: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB15_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: .LBB15_2: ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: bextrl %eax, %edx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_a1: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: shrdl %cl, %esi, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB15_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: .LBB15_2: ; X86-BMI2-NEXT: bzhil %eax, %edx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_a1: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_a1: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_a1: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %truncshifted = trunc i64 %shifted to i32 %onebit = shl i32 1, %numlowbits %mask = add nsw i32 %onebit, -1 %masked = and i32 %mask, %truncshifted ret i32 %masked } ; Shifting happens in 64-bit, then truncation (with extra use). ; Masking is 32-bit. define i32 @bextr64_32_a1_trunc_extrause(i64 %val, i64 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_a1_trunc_extrause: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI-NEXT: movl %edx, %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: shrdl %cl, %edx, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB16_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %esi ; X86-NOBMI-NEXT: .LBB16_2: ; X86-NOBMI-NEXT: movl %esi, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: movl %ebx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: addl $4, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_a1_trunc_extrause: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: pushl %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: movl %edx, %esi ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: shrdl %cl, %edx, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB16_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %esi ; X86-BMI1-NEXT: .LBB16_2: ; X86-BMI1-NEXT: movl %esi, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: shll $8, %ebx ; X86-BMI1-NEXT: bextrl %ebx, %esi, %eax ; X86-BMI1-NEXT: addl $4, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_a1_trunc_extrause: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: pushl %eax ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB16_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %eax, %esi ; X86-BMI2-NEXT: .LBB16_2: ; X86-BMI2-NEXT: movl %esi, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: bzhil %ebx, %esi, %eax ; X86-BMI2-NEXT: addl $4, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_a1_trunc_extrause: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbp ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movl %edx, %ebp ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq %rdi, %rbx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rbx ; X64-NOBMI-NEXT: movl %ebx, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %ebp, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %ebx, %eax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %rbp ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_a1_trunc_extrause: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbp ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movl %edx, %ebp ; X64-BMI1-NEXT: movq %rsi, %rcx ; X64-BMI1-NEXT: movq %rdi, %rbx ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-BMI1-NEXT: shrq %cl, %rbx ; X64-BMI1-NEXT: movl %ebx, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: shll $8, %ebp ; X64-BMI1-NEXT: bextrl %ebp, %ebx, %eax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %rbp ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_a1_trunc_extrause: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbp ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movl %edx, %ebp ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rbx ; X64-BMI2-NEXT: movl %ebx, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: bzhil %ebp, %ebx, %eax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %rbp ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %truncshifted = trunc i64 %shifted to i32 call void @use32(i32 %truncshifted) %onebit = shl i32 1, %numlowbits %mask = add nsw i32 %onebit, -1 %masked = and i32 %mask, %truncshifted ret i32 %masked } ; Shifting happens in 64-bit. Mask is 32-bit, but extended to 64-bit. ; Masking is 64-bit. Then truncation. define i32 @bextr64_32_a2(i64 %val, i64 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_a2: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: shrdl %cl, %edi, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB17_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %esi ; X86-NOBMI-NEXT: .LBB17_2: ; X86-NOBMI-NEXT: movl $1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_a2: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB17_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: .LBB17_2: ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: bextrl %eax, %edx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_a2: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: shrdl %cl, %esi, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB17_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: .LBB17_2: ; X86-BMI2-NEXT: bzhil %eax, %edx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_a2: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_a2: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_a2: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %onebit = shl i32 1, %numlowbits %mask = add nsw i32 %onebit, -1 %zextmask = zext i32 %mask to i64 %masked = and i64 %zextmask, %shifted %truncmasked = trunc i64 %masked to i32 ret i32 %truncmasked } ; Shifting happens in 64-bit. Mask is 32-bit, but calculated in 64-bit. ; Masking is 64-bit. Then truncation. define i32 @bextr64_32_a3(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_a3: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: shrdl %cl, %edi, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB18_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %esi ; X86-NOBMI-NEXT: .LBB18_2: ; X86-NOBMI-NEXT: movl $1, %edi ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %edi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: testb $32, %dl ; X86-NOBMI-NEXT: jne .LBB18_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %edi, %eax ; X86-NOBMI-NEXT: .LBB18_4: ; X86-NOBMI-NEXT: decl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_a3: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: shrdl %cl, %edi, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB18_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %esi ; X86-BMI1-NEXT: .LBB18_2: ; X86-BMI1-NEXT: movl $1, %edi ; X86-BMI1-NEXT: movl %edx, %ecx ; X86-BMI1-NEXT: shll %cl, %edi ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: testb $32, %dl ; X86-BMI1-NEXT: jne .LBB18_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %edi, %eax ; X86-BMI1-NEXT: .LBB18_4: ; X86-BMI1-NEXT: decl %eax ; X86-BMI1-NEXT: andl %esi, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_a3: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB18_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edx ; X86-BMI2-NEXT: .LBB18_2: ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: jne .LBB18_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl $1, %eax ; X86-BMI2-NEXT: shlxl %ebx, %eax, %eax ; X86-BMI2-NEXT: .LBB18_4: ; X86-BMI2-NEXT: decl %eax ; X86-BMI2-NEXT: andl %edx, %eax ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_a3: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: decl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_a3: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_a3: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %onebit = shl i64 1, %numlowbits %mask = add nsw i64 %onebit, 4294967295 %masked = and i64 %mask, %shifted %truncmasked = trunc i64 %masked to i32 ret i32 %truncmasked } ; ---------------------------------------------------------------------------- ; ; Pattern b. 32-bit ; ---------------------------------------------------------------------------- ; define i32 @bextr32_b0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_b0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $-1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_b0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: orl %eax, %ecx ; X86-BMI1-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_b0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_b0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %edi ; X64-NOBMI-NEXT: movl $-1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: notl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_b0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_b0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %notmask = shl i32 -1, %numlowbits %mask = xor i32 %notmask, -1 %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_b1_indexzext(i32 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_b1_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $-1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_b1_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: orl %eax, %ecx ; X86-BMI1-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_b1_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_b1_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %edi ; X64-NOBMI-NEXT: movl $-1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: notl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_b1_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_b1_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %skip = zext i8 %numskipbits to i32 %shifted = lshr i32 %val, %skip %conv = zext i8 %numlowbits to i32 %notmask = shl i32 -1, %conv %mask = xor i32 %notmask, -1 %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_b2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_b2_load: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $-1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_b2_load: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shll $8, %ecx ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: orl %ecx, %edx ; X86-BMI1-NEXT: bextrl %edx, (%eax), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_b2_load: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI2-NEXT: shrxl %edx, (%ecx), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_b2_load: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl (%rdi), %esi ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %esi ; X64-NOBMI-NEXT: movl $-1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: notl %eax ; X64-NOBMI-NEXT: andl %esi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_b2_load: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, (%rdi), %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_b2_load: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, (%rdi), %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %val = load i32, i32* %w %shifted = lshr i32 %val, %numskipbits %notmask = shl i32 -1, %numlowbits %mask = xor i32 %notmask, -1 %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_b3_load_indexzext(i32* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_b3_load_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $-1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_b3_load_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shll $8, %ecx ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: orl %ecx, %edx ; X86-BMI1-NEXT: bextrl %edx, (%eax), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_b3_load_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI2-NEXT: shrxl %edx, (%ecx), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_b3_load_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl (%rdi), %esi ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %esi ; X64-NOBMI-NEXT: movl $-1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: notl %eax ; X64-NOBMI-NEXT: andl %esi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_b3_load_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, (%rdi), %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_b3_load_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, (%rdi), %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %val = load i32, i32* %w %skip = zext i8 %numskipbits to i32 %shifted = lshr i32 %val, %skip %conv = zext i8 %numlowbits to i32 %notmask = shl i32 -1, %conv %mask = xor i32 %notmask, -1 %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_b4_commutative(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_b4_commutative: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl $-1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_b4_commutative: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: orl %eax, %ecx ; X86-BMI1-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_b4_commutative: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_b4_commutative: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %edi ; X64-NOBMI-NEXT: movl $-1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: notl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_b4_commutative: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_b4_commutative: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %notmask = shl i32 -1, %numlowbits %mask = xor i32 %notmask, -1 %masked = and i32 %shifted, %mask ; swapped order ret i32 %masked } define i32 @bextr32_b5_skipextrauses(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_b5_skipextrauses: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %ecx ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %esi ; X86-NOBMI-NEXT: notl %esi ; X86-NOBMI-NEXT: andl %edi, %esi ; X86-NOBMI-NEXT: movl %eax, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: addl $4, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_b5_skipextrauses: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: shll $8, %ecx ; X86-BMI1-NEXT: movzbl %al, %edx ; X86-BMI1-NEXT: orl %ecx, %edx ; X86-BMI1-NEXT: bextrl %edx, {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl %eax, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: addl $8, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_b5_skipextrauses: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: bzhil %eax, %edx, %esi ; X86-BMI2-NEXT: movl %ecx, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: addl $8, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_b5_skipextrauses: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: shrl %cl, %edi ; X64-NOBMI-NEXT: movl $-1, %ebx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %ebx ; X64-NOBMI-NEXT: notl %ebx ; X64-NOBMI-NEXT: andl %edi, %ebx ; X64-NOBMI-NEXT: movl %esi, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: movl %ebx, %eax ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_b5_skipextrauses: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %ebx ; X64-BMI1-NEXT: movl %esi, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: movl %ebx, %eax ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_b5_skipextrauses: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %ebx ; X64-BMI2-NEXT: movl %esi, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %notmask = shl i32 -1, %numlowbits %mask = xor i32 %notmask, -1 %masked = and i32 %mask, %shifted call void @use32(i32 %numskipbits) ret i32 %masked } ; 64-bit define i64 @bextr64_b0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_b0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB25_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB25_2: ; X86-NOBMI-NEXT: movl $-1, %edx ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shll %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: jne .LBB25_3 ; X86-NOBMI-NEXT: # %bb.4: ; X86-NOBMI-NEXT: movl %ebx, %eax ; X86-NOBMI-NEXT: jmp .LBB25_5 ; X86-NOBMI-NEXT: .LBB25_3: ; X86-NOBMI-NEXT: movl %ebx, %edx ; X86-NOBMI-NEXT: .LBB25_5: ; X86-NOBMI-NEXT: notl %edx ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_b0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB25_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edx, %esi ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: .LBB25_2: ; X86-BMI1-NEXT: movl $-1, %edi ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shll %cl, %ebx ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: je .LBB25_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %edi ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB25_4: ; X86-BMI1-NEXT: andnl %edx, %edi, %edx ; X86-BMI1-NEXT: andnl %esi, %ebx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_b0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: shrxl %ecx, %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB25_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: .LBB25_2: ; X86-BMI2-NEXT: movl $-1, %esi ; X86-BMI2-NEXT: shlxl %ebx, %esi, %ecx ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB25_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ecx, %esi ; X86-BMI2-NEXT: xorl %ecx, %ecx ; X86-BMI2-NEXT: .LBB25_4: ; X86-BMI2-NEXT: andnl %edx, %esi, %edx ; X86-BMI2-NEXT: andnl %eax, %ecx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_b0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movq $-1, %rax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: notq %rax ; X64-NOBMI-NEXT: andq %rdi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_b0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_b0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %notmask = shl i64 -1, %numlowbits %mask = xor i64 %notmask, -1 %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_b1_indexzext(i64 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_b1_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB26_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB26_2: ; X86-NOBMI-NEXT: movl $-1, %edx ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shll %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: jne .LBB26_3 ; X86-NOBMI-NEXT: # %bb.4: ; X86-NOBMI-NEXT: movl %ebx, %eax ; X86-NOBMI-NEXT: jmp .LBB26_5 ; X86-NOBMI-NEXT: .LBB26_3: ; X86-NOBMI-NEXT: movl %ebx, %edx ; X86-NOBMI-NEXT: .LBB26_5: ; X86-NOBMI-NEXT: notl %edx ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_b1_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB26_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edx, %esi ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: .LBB26_2: ; X86-BMI1-NEXT: movl $-1, %edi ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shll %cl, %ebx ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: je .LBB26_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %edi ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB26_4: ; X86-BMI1-NEXT: andnl %edx, %edi, %edx ; X86-BMI1-NEXT: andnl %esi, %ebx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_b1_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: shrxl %ecx, %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB26_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: .LBB26_2: ; X86-BMI2-NEXT: movl $-1, %esi ; X86-BMI2-NEXT: shlxl %ebx, %esi, %ecx ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB26_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ecx, %esi ; X86-BMI2-NEXT: xorl %ecx, %ecx ; X86-BMI2-NEXT: .LBB26_4: ; X86-BMI2-NEXT: andnl %edx, %esi, %edx ; X86-BMI2-NEXT: andnl %eax, %ecx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_b1_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movq $-1, %rax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: notq %rax ; X64-NOBMI-NEXT: andq %rdi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_b1_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_b1_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: # kill: def $edx killed $edx def $rdx ; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %skip = zext i8 %numskipbits to i64 %shifted = lshr i64 %val, %skip %conv = zext i8 %numlowbits to i64 %notmask = shl i64 -1, %conv %mask = xor i64 %notmask, -1 %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_b2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_b2_load: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: movl 4(%eax), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB27_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB27_2: ; X86-NOBMI-NEXT: movl $-1, %edx ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shll %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: jne .LBB27_3 ; X86-NOBMI-NEXT: # %bb.4: ; X86-NOBMI-NEXT: movl %ebx, %eax ; X86-NOBMI-NEXT: jmp .LBB27_5 ; X86-NOBMI-NEXT: .LBB27_3: ; X86-NOBMI-NEXT: movl %ebx, %edx ; X86-NOBMI-NEXT: .LBB27_5: ; X86-NOBMI-NEXT: notl %edx ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_b2_load: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: movl (%edx), %esi ; X86-BMI1-NEXT: movl 4(%edx), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB27_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edx, %esi ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: .LBB27_2: ; X86-BMI1-NEXT: movl $-1, %edi ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shll %cl, %ebx ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: je .LBB27_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %edi ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB27_4: ; X86-BMI1-NEXT: andnl %edx, %edi, %edx ; X86-BMI1-NEXT: andnl %esi, %ebx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_b2_load: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl (%edx), %eax ; X86-BMI2-NEXT: movl 4(%edx), %esi ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: shrdl %cl, %esi, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB27_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: .LBB27_2: ; X86-BMI2-NEXT: movl $-1, %esi ; X86-BMI2-NEXT: shlxl %ebx, %esi, %ecx ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB27_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ecx, %esi ; X86-BMI2-NEXT: xorl %ecx, %ecx ; X86-BMI2-NEXT: .LBB27_4: ; X86-BMI2-NEXT: andnl %edx, %esi, %edx ; X86-BMI2-NEXT: andnl %eax, %ecx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_b2_load: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq (%rdi), %rsi ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rsi ; X64-NOBMI-NEXT: movq $-1, %rax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: notq %rax ; X64-NOBMI-NEXT: andq %rsi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_b2_load: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, (%rdi), %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_b2_load: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %val = load i64, i64* %w %shifted = lshr i64 %val, %numskipbits %notmask = shl i64 -1, %numlowbits %mask = xor i64 %notmask, -1 %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_b3_load_indexzext(i64* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_b3_load_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: movl 4(%eax), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB28_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB28_2: ; X86-NOBMI-NEXT: movl $-1, %edx ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shll %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: jne .LBB28_3 ; X86-NOBMI-NEXT: # %bb.4: ; X86-NOBMI-NEXT: movl %ebx, %eax ; X86-NOBMI-NEXT: jmp .LBB28_5 ; X86-NOBMI-NEXT: .LBB28_3: ; X86-NOBMI-NEXT: movl %ebx, %edx ; X86-NOBMI-NEXT: .LBB28_5: ; X86-NOBMI-NEXT: notl %edx ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_b3_load_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: movl (%edx), %esi ; X86-BMI1-NEXT: movl 4(%edx), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB28_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edx, %esi ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: .LBB28_2: ; X86-BMI1-NEXT: movl $-1, %edi ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shll %cl, %ebx ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: je .LBB28_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %edi ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB28_4: ; X86-BMI1-NEXT: andnl %edx, %edi, %edx ; X86-BMI1-NEXT: andnl %esi, %ebx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_b3_load_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl (%edx), %eax ; X86-BMI2-NEXT: movl 4(%edx), %esi ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: shrdl %cl, %esi, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB28_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: .LBB28_2: ; X86-BMI2-NEXT: movl $-1, %esi ; X86-BMI2-NEXT: shlxl %ebx, %esi, %ecx ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB28_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ecx, %esi ; X86-BMI2-NEXT: xorl %ecx, %ecx ; X86-BMI2-NEXT: .LBB28_4: ; X86-BMI2-NEXT: andnl %edx, %esi, %edx ; X86-BMI2-NEXT: andnl %eax, %ecx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_b3_load_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movq (%rdi), %rsi ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrq %cl, %rsi ; X64-NOBMI-NEXT: movq $-1, %rax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: notq %rax ; X64-NOBMI-NEXT: andq %rsi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_b3_load_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, (%rdi), %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_b3_load_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: # kill: def $edx killed $edx def $rdx ; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi ; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %val = load i64, i64* %w %skip = zext i8 %numskipbits to i64 %shifted = lshr i64 %val, %skip %conv = zext i8 %numlowbits to i64 %notmask = shl i64 -1, %conv %mask = xor i64 %notmask, -1 %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_b4_commutative(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_b4_commutative: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl %esi, %edx ; X86-NOBMI-NEXT: shrl %cl, %edx ; X86-NOBMI-NEXT: shrdl %cl, %esi, %eax ; X86-NOBMI-NEXT: xorl %esi, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB29_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: .LBB29_2: ; X86-NOBMI-NEXT: movl $-1, %edi ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shll %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: jne .LBB29_3 ; X86-NOBMI-NEXT: # %bb.4: ; X86-NOBMI-NEXT: movl %ebx, %esi ; X86-NOBMI-NEXT: jmp .LBB29_5 ; X86-NOBMI-NEXT: .LBB29_3: ; X86-NOBMI-NEXT: movl %ebx, %edi ; X86-NOBMI-NEXT: .LBB29_5: ; X86-NOBMI-NEXT: notl %edi ; X86-NOBMI-NEXT: andl %edi, %edx ; X86-NOBMI-NEXT: notl %esi ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_b4_commutative: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB29_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edx, %esi ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: .LBB29_2: ; X86-BMI1-NEXT: movl $-1, %edi ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shll %cl, %ebx ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: je .LBB29_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %edi ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB29_4: ; X86-BMI1-NEXT: andnl %edx, %edi, %edx ; X86-BMI1-NEXT: andnl %esi, %ebx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_b4_commutative: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: shrxl %ecx, %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB29_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: .LBB29_2: ; X86-BMI2-NEXT: movl $-1, %esi ; X86-BMI2-NEXT: shlxl %ebx, %esi, %ecx ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB29_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ecx, %esi ; X86-BMI2-NEXT: xorl %ecx, %ecx ; X86-BMI2-NEXT: .LBB29_4: ; X86-BMI2-NEXT: andnl %edx, %esi, %edx ; X86-BMI2-NEXT: andnl %eax, %ecx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_b4_commutative: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movq $-1, %rax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: notq %rax ; X64-NOBMI-NEXT: andq %rdi, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_b4_commutative: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_b4_commutative: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %notmask = shl i64 -1, %numlowbits %mask = xor i64 %notmask, -1 %masked = and i64 %shifted, %mask ; swapped order ret i64 %masked } define i64 @bextr64_b5_skipextrauses(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_b5_skipextrauses: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $12, %esp ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %ch ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %esi, %ebp ; X86-NOBMI-NEXT: movb %al, %cl ; X86-NOBMI-NEXT: shrl %cl, %ebp ; X86-NOBMI-NEXT: shrdl %cl, %esi, %edx ; X86-NOBMI-NEXT: xorl %ebx, %ebx ; X86-NOBMI-NEXT: testb $32, %al ; X86-NOBMI-NEXT: je .LBB30_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %ebp, %edx ; X86-NOBMI-NEXT: xorl %ebp, %ebp ; X86-NOBMI-NEXT: .LBB30_2: ; X86-NOBMI-NEXT: movl $-1, %edi ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: movb %ch, %cl ; X86-NOBMI-NEXT: shll %cl, %esi ; X86-NOBMI-NEXT: testb $32, %ch ; X86-NOBMI-NEXT: jne .LBB30_3 ; X86-NOBMI-NEXT: # %bb.4: ; X86-NOBMI-NEXT: movl %esi, %ebx ; X86-NOBMI-NEXT: jmp .LBB30_5 ; X86-NOBMI-NEXT: .LBB30_3: ; X86-NOBMI-NEXT: movl %esi, %edi ; X86-NOBMI-NEXT: .LBB30_5: ; X86-NOBMI-NEXT: notl %edi ; X86-NOBMI-NEXT: andl %ebp, %edi ; X86-NOBMI-NEXT: notl %ebx ; X86-NOBMI-NEXT: andl %edx, %ebx ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl {{[0-9]+}}(%esp) ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: movl %ebx, %eax ; X86-NOBMI-NEXT: movl %edi, %edx ; X86-NOBMI-NEXT: addl $12, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: popl %ebp ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_b5_skipextrauses: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $12, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl %ebx, %esi ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: shrdl %cl, %ebx, %edi ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: je .LBB30_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edi ; X86-BMI1-NEXT: xorl %esi, %esi ; X86-BMI1-NEXT: .LBB30_2: ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: movl $-1, %ebp ; X86-BMI1-NEXT: movl %edx, %ecx ; X86-BMI1-NEXT: shll %cl, %ebp ; X86-BMI1-NEXT: testb $32, %dl ; X86-BMI1-NEXT: je .LBB30_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebp, %ebx ; X86-BMI1-NEXT: xorl %ebp, %ebp ; X86-BMI1-NEXT: .LBB30_4: ; X86-BMI1-NEXT: andnl %esi, %ebx, %esi ; X86-BMI1-NEXT: andnl %edi, %ebp, %edi ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl {{[0-9]+}}(%esp) ; X86-BMI1-NEXT: pushl %eax ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: movl %edi, %eax ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: addl $12, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: popl %ebp ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_b5_skipextrauses: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $12, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: shrxl %ecx, %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB30_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: .LBB30_2: ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ebp ; X86-BMI2-NEXT: movl $-1, %esi ; X86-BMI2-NEXT: shlxl %ebx, %esi, %edi ; X86-BMI2-NEXT: testb $32, %bl ; X86-BMI2-NEXT: je .LBB30_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB30_4: ; X86-BMI2-NEXT: andnl %edx, %esi, %esi ; X86-BMI2-NEXT: andnl %eax, %edi, %edi ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: pushl %ecx ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: movl %edi, %eax ; X86-BMI2-NEXT: movl %esi, %edx ; X86-BMI2-NEXT: addl $12, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: popl %ebp ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_b5_skipextrauses: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movq $-1, %rbx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rbx ; X64-NOBMI-NEXT: notq %rbx ; X64-NOBMI-NEXT: andq %rdi, %rbx ; X64-NOBMI-NEXT: movq %rsi, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: movq %rbx, %rax ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_b5_skipextrauses: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rbx ; X64-BMI1-NEXT: movq %rsi, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: movq %rbx, %rax ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_b5_skipextrauses: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rbx ; X64-BMI2-NEXT: movq %rsi, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: movq %rbx, %rax ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %notmask = shl i64 -1, %numlowbits %mask = xor i64 %notmask, -1 %masked = and i64 %mask, %shifted call void @use64(i64 %numskipbits) ret i64 %masked } ; 64-bit, but with 32-bit output ; Everything done in 64-bit, truncation happens last. define i32 @bextr64_32_b0(i64 %val, i64 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_b0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl %edi, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %edi, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB31_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: .LBB31_2: ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %esi ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: testb $32, %dl ; X86-NOBMI-NEXT: jne .LBB31_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %esi, %ecx ; X86-NOBMI-NEXT: .LBB31_4: ; X86-NOBMI-NEXT: notl %ecx ; X86-NOBMI-NEXT: andl %ecx, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_b0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB31_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: .LBB31_2: ; X86-BMI1-NEXT: movl $-1, %esi ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shll %cl, %esi ; X86-BMI1-NEXT: xorl %ecx, %ecx ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: jne .LBB31_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %esi, %ecx ; X86-BMI1-NEXT: .LBB31_4: ; X86-BMI1-NEXT: andnl %edx, %ecx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_b0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: shrdl %cl, %esi, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB31_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: .LBB31_2: ; X86-BMI2-NEXT: xorl %ecx, %ecx ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: jne .LBB31_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl $-1, %ecx ; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx ; X86-BMI2-NEXT: .LBB31_4: ; X86-BMI2-NEXT: andnl %edx, %ecx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_b0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movq $-1, %rax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: notl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_b0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_b0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shiftedval = lshr i64 %val, %numskipbits %widenumlowbits = zext i8 %numlowbits to i64 %notmask = shl nsw i64 -1, %widenumlowbits %mask = xor i64 %notmask, -1 %wideres = and i64 %shiftedval, %mask %res = trunc i64 %wideres to i32 ret i32 %res } ; Shifting happens in 64-bit, then truncation. Masking is 32-bit. define i32 @bextr64_32_b1(i64 %val, i64 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_b1: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: shrdl %cl, %edi, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB32_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %esi ; X86-NOBMI-NEXT: .LBB32_2: ; X86-NOBMI-NEXT: movl $-1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_b1: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB32_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: .LBB32_2: ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: bextrl %eax, %edx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_b1: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: shrdl %cl, %esi, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB32_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: .LBB32_2: ; X86-BMI2-NEXT: bzhil %eax, %edx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_b1: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $-1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: notl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_b1: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_b1: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shiftedval = lshr i64 %val, %numskipbits %truncshiftedval = trunc i64 %shiftedval to i32 %widenumlowbits = zext i8 %numlowbits to i32 %notmask = shl nsw i32 -1, %widenumlowbits %mask = xor i32 %notmask, -1 %res = and i32 %truncshiftedval, %mask ret i32 %res } ; Shifting happens in 64-bit. Mask is 32-bit, but extended to 64-bit. ; Masking is 64-bit. Then truncation. define i32 @bextr64_32_b2(i64 %val, i64 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_b2: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: shrdl %cl, %edi, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB33_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %esi ; X86-NOBMI-NEXT: .LBB33_2: ; X86-NOBMI-NEXT: movl $-1, %eax ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: notl %eax ; X86-NOBMI-NEXT: andl %esi, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_b2: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB33_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: .LBB33_2: ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: bextrl %eax, %edx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_b2: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: shrdl %cl, %esi, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB33_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: .LBB33_2: ; X86-BMI2-NEXT: bzhil %eax, %edx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_b2: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $-1, %eax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: notl %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_b2: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_b2: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shiftedval = lshr i64 %val, %numskipbits %widenumlowbits = zext i8 %numlowbits to i32 %notmask = shl nsw i32 -1, %widenumlowbits %mask = xor i32 %notmask, -1 %zextmask = zext i32 %mask to i64 %wideres = and i64 %shiftedval, %zextmask %res = trunc i64 %wideres to i32 ret i32 %res } ; Shifting happens in 64-bit. Mask is 32-bit, but calculated in 64-bit. ; Masking is 64-bit. Then truncation. define i32 @bextr64_32_b3(i64 %val, i64 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_b3: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl %edi, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %edi, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB34_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: .LBB34_2: ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: movl %edx, %ecx ; X86-NOBMI-NEXT: shll %cl, %esi ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: testb $32, %dl ; X86-NOBMI-NEXT: jne .LBB34_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %esi, %ecx ; X86-NOBMI-NEXT: .LBB34_4: ; X86-NOBMI-NEXT: notl %ecx ; X86-NOBMI-NEXT: andl %ecx, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_b3: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB34_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: .LBB34_2: ; X86-BMI1-NEXT: movl $-1, %esi ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shll %cl, %esi ; X86-BMI1-NEXT: xorl %ecx, %ecx ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: jne .LBB34_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %esi, %ecx ; X86-BMI1-NEXT: .LBB34_4: ; X86-BMI1-NEXT: andnl %edx, %ecx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_b3: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: shrdl %cl, %esi, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB34_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: .LBB34_2: ; X86-BMI2-NEXT: xorl %ecx, %ecx ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: jne .LBB34_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl $-1, %ecx ; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx ; X86-BMI2-NEXT: .LBB34_4: ; X86-BMI2-NEXT: andnl %edx, %ecx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_b3: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: movl $4294967295, %eax # imm = 0xFFFFFFFF ; X64-NOBMI-NEXT: movl $4294967295, %esi # imm = 0xFFFFFFFF ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rsi ; X64-NOBMI-NEXT: xorl %esi, %eax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_b3: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_b3: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shiftedval = lshr i64 %val, %numskipbits %widenumlowbits = zext i8 %numlowbits to i64 %notmask = shl nsw i64 4294967295, %widenumlowbits %mask = xor i64 %notmask, 4294967295 %wideres = and i64 %shiftedval, %mask %res = trunc i64 %wideres to i32 ret i32 %res } ; ---------------------------------------------------------------------------- ; ; Pattern c. 32-bit ; ---------------------------------------------------------------------------- ; define i32 @bextr32_c0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_c0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl %esi, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: andl %edi, %esi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: addl $4, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_c0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: pushl %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: xorl %ecx, %ecx ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %esi ; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: movl %esi, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: andl %edi, %esi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: addl $4, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_c0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: pushl %eax ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl %ebx, %eax ; X86-BMI2-NEXT: negb %al ; X86-BMI2-NEXT: movl $-1, %ecx ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax ; X86-BMI2-NEXT: movl %eax, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: bzhil %ebx, %esi, %eax ; X86-BMI2-NEXT: addl $4, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_c0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbp ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl %edi, %ebx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %ebx ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl $-1, %ebp ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrl %cl, %ebp ; X64-NOBMI-NEXT: movl %ebp, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: andl %ebx, %ebp ; X64-NOBMI-NEXT: movl %ebp, %eax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %rbp ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_c0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbp ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movl %esi, %ecx ; X64-BMI1-NEXT: movl %edi, %ebx ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-BMI1-NEXT: shrl %cl, %ebx ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movl $-1, %ebp ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrl %cl, %ebp ; X64-BMI1-NEXT: movl %ebp, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: andl %ebx, %ebp ; X64-BMI1-NEXT: movl %ebp, %eax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %rbp ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_c0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbp ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movl %edx, %ebx ; X64-BMI2-NEXT: shrxl %esi, %edi, %ebp ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movl $-1, %ecx ; X64-BMI2-NEXT: shrxl %eax, %ecx, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: bzhil %ebx, %ebp, %eax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %rbp ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %numhighbits = sub i32 32, %numlowbits %mask = lshr i32 -1, %numhighbits call void @use32(i32 %mask) %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_c1_indexzext(i32 %val, i8 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_c1_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl %esi, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: andl %edi, %esi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: addl $4, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_c1_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: pushl %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: xorl %ecx, %ecx ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %esi ; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: movl %esi, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: andl %edi, %esi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: addl $4, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_c1_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: pushl %eax ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl %ebx, %eax ; X86-BMI2-NEXT: negb %al ; X86-BMI2-NEXT: movl $-1, %ecx ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax ; X86-BMI2-NEXT: movl %eax, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: bzhil %ebx, %esi, %eax ; X86-BMI2-NEXT: addl $4, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_c1_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbp ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl %edi, %ebx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %ebx ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl $-1, %ebp ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrl %cl, %ebp ; X64-NOBMI-NEXT: movl %ebp, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: andl %ebx, %ebp ; X64-NOBMI-NEXT: movl %ebp, %eax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %rbp ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_c1_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbp ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movl %esi, %ecx ; X64-BMI1-NEXT: movl %edi, %ebx ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-BMI1-NEXT: shrl %cl, %ebx ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movl $-1, %ebp ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrl %cl, %ebp ; X64-BMI1-NEXT: movl %ebp, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: andl %ebx, %ebp ; X64-BMI1-NEXT: movl %ebp, %eax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %rbp ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_c1_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbp ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movl %edx, %ebx ; X64-BMI2-NEXT: shrxl %esi, %edi, %ebp ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movl $-1, %ecx ; X64-BMI2-NEXT: shrxl %eax, %ecx, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: bzhil %ebx, %ebp, %eax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %rbp ; X64-BMI2-NEXT: retq %skip = zext i8 %numskipbits to i32 %shifted = lshr i32 %val, %skip %numhighbits = sub i8 32, %numlowbits %sh_prom = zext i8 %numhighbits to i32 %mask = lshr i32 -1, %sh_prom call void @use32(i32 %mask) %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_c2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_c2_load: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl %esi, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: andl %edi, %esi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: addl $4, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_c2_load: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: pushl %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl (%eax), %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: xorl %ecx, %ecx ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %esi ; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: movl %esi, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: andl %edi, %esi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: addl $4, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_c2_load: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: pushl %eax ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, (%eax), %esi ; X86-BMI2-NEXT: movl %ebx, %eax ; X86-BMI2-NEXT: negb %al ; X86-BMI2-NEXT: movl $-1, %ecx ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax ; X86-BMI2-NEXT: movl %eax, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: bzhil %ebx, %esi, %eax ; X86-BMI2-NEXT: addl $4, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_c2_load: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbp ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl (%rdi), %ebp ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %ebp ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl $-1, %ebx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrl %cl, %ebx ; X64-NOBMI-NEXT: movl %ebx, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: andl %ebp, %ebx ; X64-NOBMI-NEXT: movl %ebx, %eax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %rbp ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_c2_load: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbp ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movl %esi, %ecx ; X64-BMI1-NEXT: movl (%rdi), %ebp ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-BMI1-NEXT: shrl %cl, %ebp ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movl $-1, %ebx ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrl %cl, %ebx ; X64-BMI1-NEXT: movl %ebx, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: andl %ebp, %ebx ; X64-BMI1-NEXT: movl %ebx, %eax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %rbp ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_c2_load: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbp ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movl %edx, %ebx ; X64-BMI2-NEXT: shrxl %esi, (%rdi), %ebp ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movl $-1, %ecx ; X64-BMI2-NEXT: shrxl %eax, %ecx, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: bzhil %ebx, %ebp, %eax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %rbp ; X64-BMI2-NEXT: retq %val = load i32, i32* %w %shifted = lshr i32 %val, %numskipbits %numhighbits = sub i32 32, %numlowbits %mask = lshr i32 -1, %numhighbits call void @use32(i32 %mask) %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_c3_load_indexzext(i32* %w, i8 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_c3_load_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl %esi, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: andl %edi, %esi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: addl $4, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_c3_load_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: pushl %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl (%eax), %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: xorl %ecx, %ecx ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %esi ; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: movl %esi, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: andl %edi, %esi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: addl $4, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_c3_load_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: pushl %eax ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, (%eax), %esi ; X86-BMI2-NEXT: movl %ebx, %eax ; X86-BMI2-NEXT: negb %al ; X86-BMI2-NEXT: movl $-1, %ecx ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax ; X86-BMI2-NEXT: movl %eax, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: bzhil %ebx, %esi, %eax ; X86-BMI2-NEXT: addl $4, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_c3_load_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbp ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl (%rdi), %ebp ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %ebp ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl $-1, %ebx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrl %cl, %ebx ; X64-NOBMI-NEXT: movl %ebx, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: andl %ebp, %ebx ; X64-NOBMI-NEXT: movl %ebx, %eax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %rbp ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_c3_load_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbp ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movl %esi, %ecx ; X64-BMI1-NEXT: movl (%rdi), %ebp ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-BMI1-NEXT: shrl %cl, %ebp ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movl $-1, %ebx ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrl %cl, %ebx ; X64-BMI1-NEXT: movl %ebx, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: andl %ebp, %ebx ; X64-BMI1-NEXT: movl %ebx, %eax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %rbp ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_c3_load_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbp ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movl %edx, %ebx ; X64-BMI2-NEXT: shrxl %esi, (%rdi), %ebp ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movl $-1, %ecx ; X64-BMI2-NEXT: shrxl %eax, %ecx, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: bzhil %ebx, %ebp, %eax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %rbp ; X64-BMI2-NEXT: retq %val = load i32, i32* %w %skip = zext i8 %numskipbits to i32 %shifted = lshr i32 %val, %skip %numhighbits = sub i8 32, %numlowbits %sh_prom = zext i8 %numhighbits to i32 %mask = lshr i32 -1, %sh_prom call void @use32(i32 %mask) %masked = and i32 %mask, %shifted ret i32 %masked } define i32 @bextr32_c4_commutative(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_c4_commutative: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl %esi, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: andl %edi, %esi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: addl $4, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_c4_commutative: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: pushl %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: xorl %ecx, %ecx ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %esi ; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: movl %esi, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: andl %edi, %esi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: addl $4, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_c4_commutative: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: pushl %eax ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl %ebx, %eax ; X86-BMI2-NEXT: negb %al ; X86-BMI2-NEXT: movl $-1, %ecx ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax ; X86-BMI2-NEXT: movl %eax, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: bzhil %ebx, %esi, %eax ; X86-BMI2-NEXT: addl $4, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_c4_commutative: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbp ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl %edi, %ebx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %ebx ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl $-1, %ebp ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrl %cl, %ebp ; X64-NOBMI-NEXT: movl %ebp, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: andl %ebx, %ebp ; X64-NOBMI-NEXT: movl %ebp, %eax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %rbp ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_c4_commutative: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbp ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movl %esi, %ecx ; X64-BMI1-NEXT: movl %edi, %ebx ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-BMI1-NEXT: shrl %cl, %ebx ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movl $-1, %ebp ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrl %cl, %ebp ; X64-BMI1-NEXT: movl %ebp, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: andl %ebx, %ebp ; X64-BMI1-NEXT: movl %ebp, %eax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %rbp ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_c4_commutative: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbp ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movl %edx, %ebx ; X64-BMI2-NEXT: shrxl %esi, %edi, %ebp ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movl $-1, %ecx ; X64-BMI2-NEXT: shrxl %eax, %ecx, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: bzhil %ebx, %ebp, %eax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %rbp ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %numhighbits = sub i32 32, %numlowbits %mask = lshr i32 -1, %numhighbits call void @use32(i32 %mask) %masked = and i32 %shifted, %mask ; swapped order ret i32 %masked } define i32 @bextr32_c5_skipextrauses(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_c5_skipextrauses: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $16, %esp ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-NOBMI-NEXT: movl %ebx, %ecx ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl %esi, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: andl %edi, %esi ; X86-NOBMI-NEXT: movl %ebx, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_c5_skipextrauses: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $16, %esp ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-BMI1-NEXT: movl %ebx, %ecx ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: xorl %ecx, %ecx ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %esi ; X86-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: movl %esi, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: andl %edi, %esi ; X86-BMI1-NEXT: movl %ebx, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_c5_skipextrauses: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $16, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI2-NEXT: shrxl %edi, {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl %ebx, %eax ; X86-BMI2-NEXT: negb %al ; X86-BMI2-NEXT: movl $-1, %ecx ; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax ; X86-BMI2-NEXT: movl %eax, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: bzhil %ebx, %esi, %esi ; X86-BMI2-NEXT: movl %edi, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_c5_skipextrauses: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbp ; X64-NOBMI-NEXT: pushq %r14 ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: movl %esi, %r14d ; X64-NOBMI-NEXT: movl %edi, %ebp ; X64-NOBMI-NEXT: movl %r14d, %ecx ; X64-NOBMI-NEXT: shrl %cl, %ebp ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl $-1, %ebx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrl %cl, %ebx ; X64-NOBMI-NEXT: movl %ebx, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: andl %ebp, %ebx ; X64-NOBMI-NEXT: movl %r14d, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: movl %ebx, %eax ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %r14 ; X64-NOBMI-NEXT: popq %rbp ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_c5_skipextrauses: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbp ; X64-BMI1-NEXT: pushq %r14 ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: movl %esi, %r14d ; X64-BMI1-NEXT: movl %edi, %ebp ; X64-BMI1-NEXT: movl %r14d, %ecx ; X64-BMI1-NEXT: shrl %cl, %ebp ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movl $-1, %ebx ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrl %cl, %ebx ; X64-BMI1-NEXT: movl %ebx, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: andl %ebp, %ebx ; X64-BMI1-NEXT: movl %r14d, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: movl %ebx, %eax ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %r14 ; X64-BMI1-NEXT: popq %rbp ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_c5_skipextrauses: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbp ; X64-BMI2-NEXT: pushq %r14 ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: movl %edx, %ebx ; X64-BMI2-NEXT: movl %esi, %ebp ; X64-BMI2-NEXT: shrxl %esi, %edi, %r14d ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movl $-1, %ecx ; X64-BMI2-NEXT: shrxl %eax, %ecx, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: bzhil %ebx, %r14d, %ebx ; X64-BMI2-NEXT: movl %ebp, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %r14 ; X64-BMI2-NEXT: popq %rbp ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %numhighbits = sub i32 32, %numlowbits %mask = lshr i32 -1, %numhighbits call void @use32(i32 %mask) %masked = and i32 %mask, %shifted call void @use32(i32 %numskipbits) ret i32 %masked } ; 64-bit define i64 @bextr64_c0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_c0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $12, %esp ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB41_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB41_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %ebp ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: shrl %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB41_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %ebx, %ebp ; X86-NOBMI-NEXT: xorl %ebx, %ebx ; X86-NOBMI-NEXT: .LBB41_4: ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: andl %ebp, %esi ; X86-NOBMI-NEXT: andl %ebx, %edi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: movl %edi, %edx ; X86-NOBMI-NEXT: addl $12, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: popl %ebp ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_c0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $12, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB41_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB41_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %ebp ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: shrl %cl, %ebx ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB41_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %ebp ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB41_4: ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: andl %ebp, %esi ; X86-BMI1-NEXT: andl %ebx, %edi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: addl $12, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: popl %ebp ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_c0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $12, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB41_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB41_2: ; X86-BMI2-NEXT: movb $64, %al ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl $-1, %ebp ; X86-BMI2-NEXT: shrxl %eax, %ebp, %ebx ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: je .LBB41_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ebx, %ebp ; X86-BMI2-NEXT: xorl %ebx, %ebx ; X86-BMI2-NEXT: .LBB41_4: ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: andl %ebp, %esi ; X86-BMI2-NEXT: andl %ebx, %edi ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: movl %edi, %edx ; X86-BMI2-NEXT: addl $12, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: popl %ebp ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_c0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %r14 ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq %rdi, %r14 ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %r14 ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movq $-1, %rbx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: andq %r14, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %r14 ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_c0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %r14 ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movq %rsi, %rcx ; X64-BMI1-NEXT: movq %rdi, %r14 ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-BMI1-NEXT: shrq %cl, %r14 ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movq $-1, %rbx ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrq %cl, %rbx ; X64-BMI1-NEXT: movq %rbx, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: andq %r14, %rbx ; X64-BMI1-NEXT: movq %rbx, %rax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %r14 ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_c0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %r14 ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movq %rdx, %rbx ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %r14 ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movq $-1, %rcx ; X64-BMI2-NEXT: shrxq %rax, %rcx, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: bzhiq %rbx, %r14, %rax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %r14 ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %mask = lshr i64 -1, %numhighbits call void @use64(i64 %mask) %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_c1_indexzext(i64 %val, i8 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_c1_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $12, %esp ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB42_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB42_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %ebp ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: shrl %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB42_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %ebx, %ebp ; X86-NOBMI-NEXT: xorl %ebx, %ebx ; X86-NOBMI-NEXT: .LBB42_4: ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: andl %ebp, %esi ; X86-NOBMI-NEXT: andl %ebx, %edi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: movl %edi, %edx ; X86-NOBMI-NEXT: addl $12, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: popl %ebp ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_c1_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $12, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB42_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB42_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %ebp ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: shrl %cl, %ebx ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB42_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %ebp ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB42_4: ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: andl %ebp, %esi ; X86-BMI1-NEXT: andl %ebx, %edi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: addl $12, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: popl %ebp ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_c1_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $12, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB42_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB42_2: ; X86-BMI2-NEXT: movb $64, %al ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl $-1, %ebp ; X86-BMI2-NEXT: shrxl %eax, %ebp, %ebx ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: je .LBB42_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ebx, %ebp ; X86-BMI2-NEXT: xorl %ebx, %ebx ; X86-BMI2-NEXT: .LBB42_4: ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: andl %ebp, %esi ; X86-BMI2-NEXT: andl %ebx, %edi ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: movl %edi, %edx ; X86-BMI2-NEXT: addl $12, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: popl %ebp ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_c1_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %r14 ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movq %rdi, %r14 ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrq %cl, %r14 ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movq $-1, %rbx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: andq %r14, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %r14 ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_c1_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %r14 ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movl %esi, %ecx ; X64-BMI1-NEXT: movq %rdi, %r14 ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-BMI1-NEXT: shrq %cl, %r14 ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movq $-1, %rbx ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrq %cl, %rbx ; X64-BMI1-NEXT: movq %rbx, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: andq %r14, %rbx ; X64-BMI1-NEXT: movq %rbx, %rax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %r14 ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_c1_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %r14 ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movl %edx, %ebx ; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %r14 ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movq $-1, %rcx ; X64-BMI2-NEXT: shrxq %rax, %rcx, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: bzhiq %rbx, %r14, %rax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %r14 ; X64-BMI2-NEXT: retq %skip = zext i8 %numskipbits to i64 %shifted = lshr i64 %val, %skip %numhighbits = sub i8 64, %numlowbits %sh_prom = zext i8 %numhighbits to i64 %mask = lshr i64 -1, %sh_prom call void @use64(i64 %mask) %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_c2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_c2_load: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $12, %esp ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: movl 4(%eax), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB43_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB43_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %ebp ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: shrl %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB43_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %ebx, %ebp ; X86-NOBMI-NEXT: xorl %ebx, %ebx ; X86-NOBMI-NEXT: .LBB43_4: ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: andl %ebp, %esi ; X86-NOBMI-NEXT: andl %ebx, %edi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: movl %edi, %edx ; X86-NOBMI-NEXT: addl $12, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: popl %ebp ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_c2_load: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $12, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl (%eax), %esi ; X86-BMI1-NEXT: movl 4(%eax), %eax ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB43_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB43_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %ebp ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: shrl %cl, %ebx ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB43_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %ebp ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB43_4: ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: andl %ebp, %esi ; X86-BMI1-NEXT: andl %ebx, %edi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: addl $12, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: popl %ebp ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_c2_load: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $12, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl (%eax), %esi ; X86-BMI2-NEXT: movl 4(%eax), %eax ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB43_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB43_2: ; X86-BMI2-NEXT: movb $64, %al ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl $-1, %ebp ; X86-BMI2-NEXT: shrxl %eax, %ebp, %ebx ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: je .LBB43_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ebx, %ebp ; X86-BMI2-NEXT: xorl %ebx, %ebx ; X86-BMI2-NEXT: .LBB43_4: ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: andl %ebp, %esi ; X86-BMI2-NEXT: andl %ebx, %edi ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: movl %edi, %edx ; X86-BMI2-NEXT: addl $12, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: popl %ebp ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_c2_load: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %r14 ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq (%rdi), %r14 ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %r14 ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movq $-1, %rbx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: andq %r14, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %r14 ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_c2_load: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %r14 ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movq %rsi, %rcx ; X64-BMI1-NEXT: movq (%rdi), %r14 ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-BMI1-NEXT: shrq %cl, %r14 ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movq $-1, %rbx ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrq %cl, %rbx ; X64-BMI1-NEXT: movq %rbx, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: andq %r14, %rbx ; X64-BMI1-NEXT: movq %rbx, %rax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %r14 ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_c2_load: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %r14 ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movq %rdx, %rbx ; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %r14 ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movq $-1, %rcx ; X64-BMI2-NEXT: shrxq %rax, %rcx, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: bzhiq %rbx, %r14, %rax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %r14 ; X64-BMI2-NEXT: retq %val = load i64, i64* %w %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %mask = lshr i64 -1, %numhighbits call void @use64(i64 %mask) %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_c3_load_indexzext(i64* %w, i8 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_c3_load_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $12, %esp ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %esi ; X86-NOBMI-NEXT: movl 4(%eax), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB44_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB44_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %ebp ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: shrl %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB44_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %ebx, %ebp ; X86-NOBMI-NEXT: xorl %ebx, %ebx ; X86-NOBMI-NEXT: .LBB44_4: ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: andl %ebp, %esi ; X86-NOBMI-NEXT: andl %ebx, %edi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: movl %edi, %edx ; X86-NOBMI-NEXT: addl $12, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: popl %ebp ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_c3_load_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $12, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl (%eax), %esi ; X86-BMI1-NEXT: movl 4(%eax), %eax ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB44_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB44_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %ebp ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: shrl %cl, %ebx ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB44_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %ebp ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB44_4: ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: andl %ebp, %esi ; X86-BMI1-NEXT: andl %ebx, %edi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: addl $12, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: popl %ebp ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_c3_load_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $12, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl (%eax), %esi ; X86-BMI2-NEXT: movl 4(%eax), %eax ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB44_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB44_2: ; X86-BMI2-NEXT: movb $64, %al ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl $-1, %ebp ; X86-BMI2-NEXT: shrxl %eax, %ebp, %ebx ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: je .LBB44_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ebx, %ebp ; X86-BMI2-NEXT: xorl %ebx, %ebx ; X86-BMI2-NEXT: .LBB44_4: ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: andl %ebp, %esi ; X86-BMI2-NEXT: andl %ebx, %edi ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: movl %edi, %edx ; X86-BMI2-NEXT: addl $12, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: popl %ebp ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_c3_load_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %r14 ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movq (%rdi), %r14 ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrq %cl, %r14 ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movq $-1, %rbx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: andq %r14, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %r14 ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_c3_load_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %r14 ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movl %esi, %ecx ; X64-BMI1-NEXT: movq (%rdi), %r14 ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-BMI1-NEXT: shrq %cl, %r14 ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movq $-1, %rbx ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrq %cl, %rbx ; X64-BMI1-NEXT: movq %rbx, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: andq %r14, %rbx ; X64-BMI1-NEXT: movq %rbx, %rax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %r14 ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_c3_load_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %r14 ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movl %edx, %ebx ; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi ; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %r14 ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movq $-1, %rcx ; X64-BMI2-NEXT: shrxq %rax, %rcx, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: bzhiq %rbx, %r14, %rax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %r14 ; X64-BMI2-NEXT: retq %val = load i64, i64* %w %skip = zext i8 %numskipbits to i64 %shifted = lshr i64 %val, %skip %numhighbits = sub i8 64, %numlowbits %sh_prom = zext i8 %numhighbits to i64 %mask = lshr i64 -1, %sh_prom call void @use64(i64 %mask) %masked = and i64 %mask, %shifted ret i64 %masked } define i64 @bextr64_c4_commutative(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_c4_commutative: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $12, %esp ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB45_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB45_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %ebp ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: shrl %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB45_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %ebx, %ebp ; X86-NOBMI-NEXT: xorl %ebx, %ebx ; X86-NOBMI-NEXT: .LBB45_4: ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: andl %ebp, %esi ; X86-NOBMI-NEXT: andl %ebx, %edi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: movl %edi, %edx ; X86-NOBMI-NEXT: addl $12, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: popl %ebp ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_c4_commutative: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $12, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB45_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB45_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %ebp ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: shrl %cl, %ebx ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB45_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebx, %ebp ; X86-BMI1-NEXT: xorl %ebx, %ebx ; X86-BMI1-NEXT: .LBB45_4: ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: andl %ebp, %esi ; X86-BMI1-NEXT: andl %ebx, %edi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: addl $12, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: popl %ebp ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_c4_commutative: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $12, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB45_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB45_2: ; X86-BMI2-NEXT: movb $64, %al ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl $-1, %ebp ; X86-BMI2-NEXT: shrxl %eax, %ebp, %ebx ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: je .LBB45_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ebx, %ebp ; X86-BMI2-NEXT: xorl %ebx, %ebx ; X86-BMI2-NEXT: .LBB45_4: ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: andl %ebp, %esi ; X86-BMI2-NEXT: andl %ebx, %edi ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: movl %edi, %edx ; X86-BMI2-NEXT: addl $12, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: popl %ebp ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_c4_commutative: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %r14 ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: pushq %rax ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq %rdi, %r14 ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %r14 ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movq $-1, %rbx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: andq %r14, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rax ; X64-NOBMI-NEXT: addq $8, %rsp ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %r14 ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_c4_commutative: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %r14 ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: pushq %rax ; X64-BMI1-NEXT: movq %rsi, %rcx ; X64-BMI1-NEXT: movq %rdi, %r14 ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-BMI1-NEXT: shrq %cl, %r14 ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movq $-1, %rbx ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrq %cl, %rbx ; X64-BMI1-NEXT: movq %rbx, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: andq %r14, %rbx ; X64-BMI1-NEXT: movq %rbx, %rax ; X64-BMI1-NEXT: addq $8, %rsp ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %r14 ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_c4_commutative: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %r14 ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: pushq %rax ; X64-BMI2-NEXT: movq %rdx, %rbx ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %r14 ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movq $-1, %rcx ; X64-BMI2-NEXT: shrxq %rax, %rcx, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: bzhiq %rbx, %r14, %rax ; X64-BMI2-NEXT: addq $8, %rsp ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %r14 ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %mask = lshr i64 -1, %numhighbits call void @use64(i64 %mask) %masked = and i64 %shifted, %mask ; swapped order ret i64 %masked } define i64 @bextr64_c5_skipextrauses(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_c5_skipextrauses: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $12, %esp ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: shrl %cl, %edi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB46_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: xorl %edi, %edi ; X86-NOBMI-NEXT: .LBB46_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %ebx ; X86-NOBMI-NEXT: movl $-1, %ebp ; X86-NOBMI-NEXT: shrl %cl, %ebp ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB46_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %ebp, %ebx ; X86-NOBMI-NEXT: xorl %ebp, %ebp ; X86-NOBMI-NEXT: .LBB46_4: ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: andl %ebx, %esi ; X86-NOBMI-NEXT: andl %ebp, %edi ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl {{[0-9]+}}(%esp) ; X86-NOBMI-NEXT: pushl {{[0-9]+}}(%esp) ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: movl %edi, %edx ; X86-NOBMI-NEXT: addl $12, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: popl %ebp ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_c5_skipextrauses: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $12, %esp ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: shrl %cl, %edi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB46_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: xorl %edi, %edi ; X86-BMI1-NEXT: .LBB46_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %ebx ; X86-BMI1-NEXT: movl $-1, %ebp ; X86-BMI1-NEXT: shrl %cl, %ebp ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB46_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %ebp, %ebx ; X86-BMI1-NEXT: xorl %ebp, %ebp ; X86-BMI1-NEXT: .LBB46_4: ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: andl %ebx, %esi ; X86-BMI1-NEXT: andl %ebp, %edi ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl {{[0-9]+}}(%esp) ; X86-BMI1-NEXT: pushl {{[0-9]+}}(%esp) ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: addl $12, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: popl %ebp ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_c5_skipextrauses: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $12, %esp ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB46_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: xorl %edi, %edi ; X86-BMI2-NEXT: .LBB46_2: ; X86-BMI2-NEXT: movb $64, %al ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl $-1, %ebp ; X86-BMI2-NEXT: shrxl %eax, %ebp, %ebx ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: je .LBB46_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ebx, %ebp ; X86-BMI2-NEXT: xorl %ebx, %ebx ; X86-BMI2-NEXT: .LBB46_4: ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %ebp ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: andl %ebp, %esi ; X86-BMI2-NEXT: andl %ebx, %edi ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl {{[0-9]+}}(%esp) ; X86-BMI2-NEXT: pushl {{[0-9]+}}(%esp) ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: movl %edi, %edx ; X86-BMI2-NEXT: addl $12, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: popl %ebp ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_c5_skipextrauses: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %r15 ; X64-NOBMI-NEXT: pushq %r14 ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: movq %rsi, %r14 ; X64-NOBMI-NEXT: movq %rdi, %r15 ; X64-NOBMI-NEXT: movl %r14d, %ecx ; X64-NOBMI-NEXT: shrq %cl, %r15 ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movq $-1, %rbx ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rbx ; X64-NOBMI-NEXT: movq %rbx, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: andq %r15, %rbx ; X64-NOBMI-NEXT: movq %r14, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: movq %rbx, %rax ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: popq %r14 ; X64-NOBMI-NEXT: popq %r15 ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_c5_skipextrauses: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %r15 ; X64-BMI1-NEXT: pushq %r14 ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: movq %rsi, %r14 ; X64-BMI1-NEXT: movq %rdi, %r15 ; X64-BMI1-NEXT: movl %r14d, %ecx ; X64-BMI1-NEXT: shrq %cl, %r15 ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movq $-1, %rbx ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrq %cl, %rbx ; X64-BMI1-NEXT: movq %rbx, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: andq %r15, %rbx ; X64-BMI1-NEXT: movq %r14, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: movq %rbx, %rax ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: popq %r14 ; X64-BMI1-NEXT: popq %r15 ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_c5_skipextrauses: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %r15 ; X64-BMI2-NEXT: pushq %r14 ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: movq %rdx, %rbx ; X64-BMI2-NEXT: movq %rsi, %r14 ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %r15 ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: negb %al ; X64-BMI2-NEXT: movq $-1, %rcx ; X64-BMI2-NEXT: shrxq %rax, %rcx, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: bzhiq %rbx, %r15, %rbx ; X64-BMI2-NEXT: movq %r14, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: movq %rbx, %rax ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: popq %r14 ; X64-BMI2-NEXT: popq %r15 ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %mask = lshr i64 -1, %numhighbits call void @use64(i64 %mask) %masked = and i64 %mask, %shifted call void @use64(i64 %numskipbits) ret i64 %masked } ; 64-bit, but with 32-bit output ; Everything done in 64-bit, truncation happens last. define i32 @bextr64_32_c0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_c0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl %esi, %edx ; X86-NOBMI-NEXT: shrl %cl, %edx ; X86-NOBMI-NEXT: shrdl %cl, %esi, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB47_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: .LBB47_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl $-1, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB47_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl $-1, %eax ; X86-NOBMI-NEXT: .LBB47_4: ; X86-NOBMI-NEXT: andl %edx, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_c0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %esi, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB47_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: .LBB47_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl $-1, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB47_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl $-1, %eax ; X86-BMI1-NEXT: .LBB47_4: ; X86-BMI1-NEXT: andl %edx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_c0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB47_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edx ; X86-BMI2-NEXT: .LBB47_2: ; X86-BMI2-NEXT: movb $64, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl $-1, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB47_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax ; X86-BMI2-NEXT: .LBB47_4: ; X86-BMI2-NEXT: andl %edx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_c0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movq $-1, %rax ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_c0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_c0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %mask = lshr i64 -1, %numhighbits %masked = and i64 %mask, %shifted %res = trunc i64 %masked to i32 ret i32 %res } ; Shifting happens in 64-bit, then truncation. Masking is 32-bit. define i32 @bextr64_32_c1(i64 %val, i64 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_c1: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %esi, %edx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB48_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: .LBB48_2: ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_c1: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB48_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: .LBB48_2: ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: bextrl %eax, %edx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_c1: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: shrdl %cl, %esi, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB48_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: .LBB48_2: ; X86-BMI2-NEXT: bzhil %eax, %edx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_c1: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq %rdi, %rax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_c1: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_c1: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %truncshifted = trunc i64 %shifted to i32 %numhighbits = sub i32 32, %numlowbits %mask = lshr i32 -1, %numhighbits %masked = and i32 %mask, %truncshifted ret i32 %masked } ; Shifting happens in 64-bit. Mask is 32-bit, but extended to 64-bit. ; Masking is 64-bit. Then truncation. define i32 @bextr64_32_c2(i64 %val, i64 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_c2: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %esi, %edx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB49_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: .LBB49_2: ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_c2: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB49_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: .LBB49_2: ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: bextrl %eax, %edx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_c2: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: shrdl %cl, %esi, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB49_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: .LBB49_2: ; X86-BMI2-NEXT: bzhil %eax, %edx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_c2: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq %rdi, %rax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_c2: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_c2: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i32 32, %numlowbits %mask = lshr i32 -1, %numhighbits %zextmask = zext i32 %mask to i64 %masked = and i64 %zextmask, %shifted %truncmasked = trunc i64 %masked to i32 ret i32 %truncmasked } ; Shifting happens in 64-bit. Mask is 32-bit, but calculated in 64-bit. ; Masking is 64-bit. Then truncation. define i32 @bextr64_32_c3(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_c3: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl %esi, %edx ; X86-NOBMI-NEXT: shrl %cl, %edx ; X86-NOBMI-NEXT: shrdl %cl, %esi, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB50_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: .LBB50_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: movl $-1, %esi ; X86-NOBMI-NEXT: shrdl %cl, %eax, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB50_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: .LBB50_4: ; X86-NOBMI-NEXT: andl %edx, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_c3: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %esi, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB50_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: .LBB50_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: movl $-1, %esi ; X86-BMI1-NEXT: shrdl %cl, %eax, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB50_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: .LBB50_4: ; X86-BMI1-NEXT: andl %edx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_c3: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: shrdl %cl, %eax, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB50_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %eax, %edx ; X86-BMI2-NEXT: .LBB50_2: ; X86-BMI2-NEXT: movb $64, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: movl $-1, %esi ; X86-BMI2-NEXT: shrdl %cl, %eax, %esi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: jne .LBB50_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: .LBB50_4: ; X86-BMI2-NEXT: andl %edx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_c3: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rdi ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl $4294967295, %eax # imm = 0xFFFFFFFF ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: andl %edi, %eax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_c3: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: movq %rsi, %rcx ; X64-BMI1-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-BMI1-NEXT: shrq %cl, %rdi ; X64-BMI1-NEXT: negb %dl ; X64-BMI1-NEXT: movl $4294967295, %eax # imm = 0xFFFFFFFF ; X64-BMI1-NEXT: movl %edx, %ecx ; X64-BMI1-NEXT: shrq %cl, %rax ; X64-BMI1-NEXT: andl %edi, %eax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_c3: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rcx ; X64-BMI2-NEXT: negb %dl ; X64-BMI2-NEXT: movl $4294967295, %eax # imm = 0xFFFFFFFF ; X64-BMI2-NEXT: shrxq %rdx, %rax, %rax ; X64-BMI2-NEXT: andl %ecx, %eax ; X64-BMI2-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %mask = lshr i64 4294967295, %numhighbits %masked = and i64 %mask, %shifted %truncmasked = trunc i64 %masked to i32 ret i32 %truncmasked } ; ---------------------------------------------------------------------------- ; ; Pattern d. 32-bit. ; ---------------------------------------------------------------------------- ; define i32 @bextr32_d0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_d0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_d0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: orl %eax, %ecx ; X86-BMI1-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_d0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_d0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl %edi, %eax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_d0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_d0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %numhighbits = sub i32 32, %numlowbits %highbitscleared = shl i32 %shifted, %numhighbits %masked = lshr i32 %highbitscleared, %numhighbits ret i32 %masked } define i32 @bextr32_d1_indexzext(i32 %val, i8 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_d1_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_d1_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: orl %eax, %ecx ; X86-BMI1-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_d1_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_d1_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl %edi, %eax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_d1_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_d1_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %skip = zext i8 %numskipbits to i32 %shifted = lshr i32 %val, %skip %numhighbits = sub i8 32, %numlowbits %sh_prom = zext i8 %numhighbits to i32 %highbitscleared = shl i32 %shifted, %sh_prom %masked = lshr i32 %highbitscleared, %sh_prom ret i32 %masked } define i32 @bextr32_d2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_d2_load: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_d2_load: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shll $8, %ecx ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: orl %ecx, %edx ; X86-BMI1-NEXT: bextrl %edx, (%eax), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_d2_load: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI2-NEXT: shrxl %edx, (%ecx), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_d2_load: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl (%rdi), %eax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_d2_load: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, (%rdi), %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_d2_load: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, (%rdi), %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %val = load i32, i32* %w %shifted = lshr i32 %val, %numskipbits %numhighbits = sub i32 32, %numlowbits %highbitscleared = shl i32 %shifted, %numhighbits %masked = lshr i32 %highbitscleared, %numhighbits ret i32 %masked } define i32 @bextr32_d3_load_indexzext(i32* %w, i8 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_d3_load_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_d3_load_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shll $8, %ecx ; X86-BMI1-NEXT: movzbl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: orl %ecx, %edx ; X86-BMI1-NEXT: bextrl %edx, (%eax), %eax ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_d3_load_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %dl ; X86-BMI2-NEXT: shrxl %edx, (%ecx), %ecx ; X86-BMI2-NEXT: bzhil %eax, %ecx, %eax ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_d3_load_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movl (%rdi), %eax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_d3_load_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, (%rdi), %eax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_d3_load_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxl %esi, (%rdi), %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %val = load i32, i32* %w %skip = zext i8 %numskipbits to i32 %shifted = lshr i32 %val, %skip %numhighbits = sub i8 32, %numlowbits %sh_prom = zext i8 %numhighbits to i32 %highbitscleared = shl i32 %shifted, %sh_prom %masked = lshr i32 %highbitscleared, %sh_prom ret i32 %masked } define i32 @bextr32_d5_skipextrauses(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr32_d5_skipextrauses: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %eax, %ecx ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shll %cl, %esi ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: movl %eax, (%esp) ; X86-NOBMI-NEXT: calll use32@PLT ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: addl $8, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr32_d5_skipextrauses: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: shll $8, %ecx ; X86-BMI1-NEXT: movzbl %al, %edx ; X86-BMI1-NEXT: orl %ecx, %edx ; X86-BMI1-NEXT: bextrl %edx, {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl %eax, (%esp) ; X86-BMI1-NEXT: calll use32@PLT ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: addl $8, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr32_d5_skipextrauses: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: bzhil %eax, %edx, %esi ; X86-BMI2-NEXT: movl %ecx, (%esp) ; X86-BMI2-NEXT: calll use32@PLT ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: addl $8, %esp ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr32_d5_skipextrauses: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: movl %edi, %ebx ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: shrl %cl, %ebx ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %ebx ; X64-NOBMI-NEXT: shrl %cl, %ebx ; X64-NOBMI-NEXT: movl %esi, %edi ; X64-NOBMI-NEXT: callq use32@PLT ; X64-NOBMI-NEXT: movl %ebx, %eax ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr32_d5_skipextrauses: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrl %eax, %edi, %ebx ; X64-BMI1-NEXT: movl %esi, %edi ; X64-BMI1-NEXT: callq use32@PLT ; X64-BMI1-NEXT: movl %ebx, %eax ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr32_d5_skipextrauses: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax ; X64-BMI2-NEXT: bzhil %edx, %eax, %ebx ; X64-BMI2-NEXT: movl %esi, %edi ; X64-BMI2-NEXT: callq use32@PLT ; X64-BMI2-NEXT: movl %ebx, %eax ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: retq %shifted = lshr i32 %val, %numskipbits %numhighbits = sub i32 32, %numlowbits %highbitscleared = shl i32 %shifted, %numhighbits %masked = lshr i32 %highbitscleared, %numhighbits call void @use32(i32 %numskipbits) ret i32 %masked } ; 64-bit. define i64 @bextr64_d0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_d0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %edx, %edi ; X86-NOBMI-NEXT: xorl %esi, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB56_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB56_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shldl %cl, %edi, %eax ; X86-NOBMI-NEXT: shll %cl, %edi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl %edi, %ebx ; X86-NOBMI-NEXT: jne .LBB56_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %eax, %ebx ; X86-NOBMI-NEXT: .LBB56_4: ; X86-NOBMI-NEXT: movl %ebx, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl $0, %edx ; X86-NOBMI-NEXT: jne .LBB56_6 ; X86-NOBMI-NEXT: # %bb.5: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: .LBB56_6: ; X86-NOBMI-NEXT: shrdl %cl, %ebx, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB56_8 ; X86-NOBMI-NEXT: # %bb.7: ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: .LBB56_8: ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_d0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: movl %edx, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: shrdl %cl, %edx, %edi ; X86-BMI1-NEXT: xorl %esi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB56_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB56_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shldl %cl, %edi, %eax ; X86-BMI1-NEXT: shll %cl, %edi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl %edi, %ebx ; X86-BMI1-NEXT: jne .LBB56_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %eax, %ebx ; X86-BMI1-NEXT: .LBB56_4: ; X86-BMI1-NEXT: movl %ebx, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl $0, %edx ; X86-BMI1-NEXT: jne .LBB56_6 ; X86-BMI1-NEXT: # %bb.5: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: .LBB56_6: ; X86-BMI1-NEXT: shrdl %cl, %ebx, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB56_8 ; X86-BMI1-NEXT: # %bb.7: ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: .LBB56_8: ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_d0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: shrxl %ecx, %edx, %esi ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB56_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: xorl %esi, %esi ; X86-BMI2-NEXT: .LBB56_2: ; X86-BMI2-NEXT: movb $64, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %esi ; X86-BMI2-NEXT: shlxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB56_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: movl $0, %edi ; X86-BMI2-NEXT: .LBB56_4: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %eax ; X86-BMI2-NEXT: jne .LBB56_6 ; X86-BMI2-NEXT: # %bb.5: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: .LBB56_6: ; X86-BMI2-NEXT: shrdl %cl, %esi, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: jne .LBB56_8 ; X86-BMI2-NEXT: # %bb.7: ; X86-BMI2-NEXT: movl %edi, %eax ; X86-BMI2-NEXT: .LBB56_8: ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_d0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq %rdi, %rax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_d0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_d0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %highbitscleared = shl i64 %shifted, %numhighbits %masked = lshr i64 %highbitscleared, %numhighbits ret i64 %masked } define i64 @bextr64_d1_indexzext(i64 %val, i8 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_d1_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %edx, %edi ; X86-NOBMI-NEXT: xorl %esi, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB57_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB57_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shldl %cl, %edi, %eax ; X86-NOBMI-NEXT: shll %cl, %edi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl %edi, %ebx ; X86-NOBMI-NEXT: jne .LBB57_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %eax, %ebx ; X86-NOBMI-NEXT: .LBB57_4: ; X86-NOBMI-NEXT: movl %ebx, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl $0, %edx ; X86-NOBMI-NEXT: jne .LBB57_6 ; X86-NOBMI-NEXT: # %bb.5: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: .LBB57_6: ; X86-NOBMI-NEXT: shrdl %cl, %ebx, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB57_8 ; X86-NOBMI-NEXT: # %bb.7: ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: .LBB57_8: ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_d1_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: movl %edx, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: shrdl %cl, %edx, %edi ; X86-BMI1-NEXT: xorl %esi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB57_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB57_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shldl %cl, %edi, %eax ; X86-BMI1-NEXT: shll %cl, %edi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl %edi, %ebx ; X86-BMI1-NEXT: jne .LBB57_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %eax, %ebx ; X86-BMI1-NEXT: .LBB57_4: ; X86-BMI1-NEXT: movl %ebx, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl $0, %edx ; X86-BMI1-NEXT: jne .LBB57_6 ; X86-BMI1-NEXT: # %bb.5: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: .LBB57_6: ; X86-BMI1-NEXT: shrdl %cl, %ebx, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB57_8 ; X86-BMI1-NEXT: # %bb.7: ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: .LBB57_8: ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_d1_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: shrxl %ecx, %edx, %esi ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB57_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: xorl %esi, %esi ; X86-BMI2-NEXT: .LBB57_2: ; X86-BMI2-NEXT: movb $64, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %esi ; X86-BMI2-NEXT: shlxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB57_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: movl $0, %edi ; X86-BMI2-NEXT: .LBB57_4: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %eax ; X86-BMI2-NEXT: jne .LBB57_6 ; X86-BMI2-NEXT: # %bb.5: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: .LBB57_6: ; X86-BMI2-NEXT: shrdl %cl, %esi, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: jne .LBB57_8 ; X86-BMI2-NEXT: # %bb.7: ; X86-BMI2-NEXT: movl %edi, %eax ; X86-BMI2-NEXT: .LBB57_8: ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_d1_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movq %rdi, %rax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_d1_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_d1_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: # kill: def $edx killed $edx def $rdx ; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %skip = zext i8 %numskipbits to i64 %shifted = lshr i64 %val, %skip %numhighbits = sub i8 64, %numlowbits %sh_prom = zext i8 %numhighbits to i64 %highbitscleared = shl i64 %shifted, %sh_prom %masked = lshr i64 %highbitscleared, %sh_prom ret i64 %masked } define i64 @bextr64_d2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_d2_load: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %edi ; X86-NOBMI-NEXT: movl 4(%eax), %edx ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %edx, %edi ; X86-NOBMI-NEXT: xorl %esi, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB58_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB58_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shldl %cl, %edi, %eax ; X86-NOBMI-NEXT: shll %cl, %edi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl %edi, %ebx ; X86-NOBMI-NEXT: jne .LBB58_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %eax, %ebx ; X86-NOBMI-NEXT: .LBB58_4: ; X86-NOBMI-NEXT: movl %ebx, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl $0, %edx ; X86-NOBMI-NEXT: jne .LBB58_6 ; X86-NOBMI-NEXT: # %bb.5: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: .LBB58_6: ; X86-NOBMI-NEXT: shrdl %cl, %ebx, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB58_8 ; X86-NOBMI-NEXT: # %bb.7: ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: .LBB58_8: ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_d2_load: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl (%eax), %edi ; X86-BMI1-NEXT: movl 4(%eax), %edx ; X86-BMI1-NEXT: movl %edx, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: shrdl %cl, %edx, %edi ; X86-BMI1-NEXT: xorl %esi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB58_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB58_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shldl %cl, %edi, %eax ; X86-BMI1-NEXT: shll %cl, %edi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl %edi, %ebx ; X86-BMI1-NEXT: jne .LBB58_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %eax, %ebx ; X86-BMI1-NEXT: .LBB58_4: ; X86-BMI1-NEXT: movl %ebx, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl $0, %edx ; X86-BMI1-NEXT: jne .LBB58_6 ; X86-BMI1-NEXT: # %bb.5: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: .LBB58_6: ; X86-BMI1-NEXT: shrdl %cl, %ebx, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB58_8 ; X86-BMI1-NEXT: # %bb.7: ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: .LBB58_8: ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_d2_load: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl (%edx), %eax ; X86-BMI2-NEXT: movl 4(%edx), %edx ; X86-BMI2-NEXT: shrxl %ecx, %edx, %esi ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB58_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: xorl %esi, %esi ; X86-BMI2-NEXT: .LBB58_2: ; X86-BMI2-NEXT: movb $64, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %esi ; X86-BMI2-NEXT: shlxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB58_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: movl $0, %edi ; X86-BMI2-NEXT: .LBB58_4: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %eax ; X86-BMI2-NEXT: jne .LBB58_6 ; X86-BMI2-NEXT: # %bb.5: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: .LBB58_6: ; X86-BMI2-NEXT: shrdl %cl, %esi, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: jne .LBB58_8 ; X86-BMI2-NEXT: # %bb.7: ; X86-BMI2-NEXT: movl %edi, %eax ; X86-BMI2-NEXT: .LBB58_8: ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_d2_load: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq (%rdi), %rax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_d2_load: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, (%rdi), %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_d2_load: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %val = load i64, i64* %w %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %highbitscleared = shl i64 %shifted, %numhighbits %masked = lshr i64 %highbitscleared, %numhighbits ret i64 %masked } define i64 @bextr64_d3_load_indexzext(i64* %w, i8 %numskipbits, i8 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_d3_load_indexzext: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl (%eax), %edi ; X86-NOBMI-NEXT: movl 4(%eax), %edx ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %edx, %edi ; X86-NOBMI-NEXT: xorl %esi, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB59_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %edi ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB59_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shldl %cl, %edi, %eax ; X86-NOBMI-NEXT: shll %cl, %edi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl %edi, %ebx ; X86-NOBMI-NEXT: jne .LBB59_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %eax, %ebx ; X86-NOBMI-NEXT: .LBB59_4: ; X86-NOBMI-NEXT: movl %ebx, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl $0, %edx ; X86-NOBMI-NEXT: jne .LBB59_6 ; X86-NOBMI-NEXT: # %bb.5: ; X86-NOBMI-NEXT: movl %edi, %esi ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: .LBB59_6: ; X86-NOBMI-NEXT: shrdl %cl, %ebx, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB59_8 ; X86-NOBMI-NEXT: # %bb.7: ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: .LBB59_8: ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_d3_load_indexzext: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl (%eax), %edi ; X86-BMI1-NEXT: movl 4(%eax), %edx ; X86-BMI1-NEXT: movl %edx, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: shrdl %cl, %edx, %edi ; X86-BMI1-NEXT: xorl %esi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB59_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %edi ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB59_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shldl %cl, %edi, %eax ; X86-BMI1-NEXT: shll %cl, %edi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl %edi, %ebx ; X86-BMI1-NEXT: jne .LBB59_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %eax, %ebx ; X86-BMI1-NEXT: .LBB59_4: ; X86-BMI1-NEXT: movl %ebx, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl $0, %edx ; X86-BMI1-NEXT: jne .LBB59_6 ; X86-BMI1-NEXT: # %bb.5: ; X86-BMI1-NEXT: movl %edi, %esi ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: .LBB59_6: ; X86-BMI1-NEXT: shrdl %cl, %ebx, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB59_8 ; X86-BMI1-NEXT: # %bb.7: ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: .LBB59_8: ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_d3_load_indexzext: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl (%edx), %eax ; X86-BMI2-NEXT: movl 4(%edx), %edx ; X86-BMI2-NEXT: shrxl %ecx, %edx, %esi ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB59_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %esi, %eax ; X86-BMI2-NEXT: xorl %esi, %esi ; X86-BMI2-NEXT: .LBB59_2: ; X86-BMI2-NEXT: movb $64, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %esi ; X86-BMI2-NEXT: shlxl %ecx, %eax, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB59_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: movl $0, %edi ; X86-BMI2-NEXT: .LBB59_4: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %eax ; X86-BMI2-NEXT: jne .LBB59_6 ; X86-BMI2-NEXT: # %bb.5: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: .LBB59_6: ; X86-BMI2-NEXT: shrdl %cl, %esi, %edi ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: jne .LBB59_8 ; X86-BMI2-NEXT: # %bb.7: ; X86-BMI2-NEXT: movl %edi, %eax ; X86-BMI2-NEXT: .LBB59_8: ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_d3_load_indexzext: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: movq (%rdi), %rax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_d3_load_indexzext: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, (%rdi), %rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_d3_load_indexzext: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: # kill: def $edx killed $edx def $rdx ; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi ; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: retq %val = load i64, i64* %w %skip = zext i8 %numskipbits to i64 %shifted = lshr i64 %val, %skip %numhighbits = sub i8 64, %numlowbits %sh_prom = zext i8 %numhighbits to i64 %highbitscleared = shl i64 %shifted, %sh_prom %masked = lshr i64 %highbitscleared, %sh_prom ret i64 %masked } define i64 @bextr64_d5_skipextrauses(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_d5_skipextrauses: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %ebp ; X86-NOBMI-NEXT: pushl %ebx ; X86-NOBMI-NEXT: pushl %edi ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: subl $12, %esp ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl %edx, %esi ; X86-NOBMI-NEXT: movl %eax, %ecx ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: shrdl %cl, %edx, %ebx ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: testb $32, %al ; X86-NOBMI-NEXT: je .LBB60_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %esi, %ebx ; X86-NOBMI-NEXT: xorl %esi, %esi ; X86-NOBMI-NEXT: .LBB60_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shldl %cl, %ebx, %esi ; X86-NOBMI-NEXT: shll %cl, %ebx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl %ebx, %ebp ; X86-NOBMI-NEXT: jne .LBB60_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %esi, %ebp ; X86-NOBMI-NEXT: .LBB60_4: ; X86-NOBMI-NEXT: movl %ebp, %esi ; X86-NOBMI-NEXT: shrl %cl, %esi ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl $0, %edi ; X86-NOBMI-NEXT: jne .LBB60_6 ; X86-NOBMI-NEXT: # %bb.5: ; X86-NOBMI-NEXT: movl %ebx, %edx ; X86-NOBMI-NEXT: movl %esi, %edi ; X86-NOBMI-NEXT: .LBB60_6: ; X86-NOBMI-NEXT: shrdl %cl, %ebp, %edx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NOBMI-NEXT: jne .LBB60_8 ; X86-NOBMI-NEXT: # %bb.7: ; X86-NOBMI-NEXT: movl %edx, %esi ; X86-NOBMI-NEXT: .LBB60_8: ; X86-NOBMI-NEXT: subl $8, %esp ; X86-NOBMI-NEXT: pushl %ecx ; X86-NOBMI-NEXT: pushl %eax ; X86-NOBMI-NEXT: calll use64@PLT ; X86-NOBMI-NEXT: addl $16, %esp ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: movl %edi, %edx ; X86-NOBMI-NEXT: addl $12, %esp ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: popl %edi ; X86-NOBMI-NEXT: popl %ebx ; X86-NOBMI-NEXT: popl %ebp ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_d5_skipextrauses: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %ebp ; X86-BMI1-NEXT: pushl %ebx ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: subl $12, %esp ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %ebx ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI1-NEXT: movl %edx, %esi ; X86-BMI1-NEXT: movl %eax, %ecx ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: shrdl %cl, %edx, %ebx ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: testb $32, %al ; X86-BMI1-NEXT: je .LBB60_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %ebx ; X86-BMI1-NEXT: xorl %esi, %esi ; X86-BMI1-NEXT: .LBB60_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shldl %cl, %ebx, %esi ; X86-BMI1-NEXT: shll %cl, %ebx ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl %ebx, %ebp ; X86-BMI1-NEXT: jne .LBB60_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %esi, %ebp ; X86-BMI1-NEXT: .LBB60_4: ; X86-BMI1-NEXT: movl %ebp, %esi ; X86-BMI1-NEXT: shrl %cl, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl $0, %edi ; X86-BMI1-NEXT: jne .LBB60_6 ; X86-BMI1-NEXT: # %bb.5: ; X86-BMI1-NEXT: movl %ebx, %edx ; X86-BMI1-NEXT: movl %esi, %edi ; X86-BMI1-NEXT: .LBB60_6: ; X86-BMI1-NEXT: shrdl %cl, %ebp, %edx ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI1-NEXT: jne .LBB60_8 ; X86-BMI1-NEXT: # %bb.7: ; X86-BMI1-NEXT: movl %edx, %esi ; X86-BMI1-NEXT: .LBB60_8: ; X86-BMI1-NEXT: subl $8, %esp ; X86-BMI1-NEXT: pushl %ecx ; X86-BMI1-NEXT: pushl %eax ; X86-BMI1-NEXT: calll use64@PLT ; X86-BMI1-NEXT: addl $16, %esp ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: addl $12, %esp ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: popl %ebx ; X86-BMI1-NEXT: popl %ebp ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_d5_skipextrauses: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %ebx ; X86-BMI2-NEXT: pushl %edi ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl %eax, %ecx ; X86-BMI2-NEXT: shrdl %cl, %edx, %edi ; X86-BMI2-NEXT: shrxl %eax, %edx, %edx ; X86-BMI2-NEXT: xorl %esi, %esi ; X86-BMI2-NEXT: testb $32, %al ; X86-BMI2-NEXT: je .LBB60_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edx, %edi ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: .LBB60_2: ; X86-BMI2-NEXT: movb $64, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %edi, %edx ; X86-BMI2-NEXT: shlxl %ecx, %edi, %ebx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB60_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %ebx, %edx ; X86-BMI2-NEXT: movl $0, %ebx ; X86-BMI2-NEXT: .LBB60_4: ; X86-BMI2-NEXT: shrxl %ecx, %edx, %edi ; X86-BMI2-NEXT: jne .LBB60_6 ; X86-BMI2-NEXT: # %bb.5: ; X86-BMI2-NEXT: movl %edi, %esi ; X86-BMI2-NEXT: .LBB60_6: ; X86-BMI2-NEXT: shrdl %cl, %edx, %ebx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMI2-NEXT: jne .LBB60_8 ; X86-BMI2-NEXT: # %bb.7: ; X86-BMI2-NEXT: movl %ebx, %edi ; X86-BMI2-NEXT: .LBB60_8: ; X86-BMI2-NEXT: subl $8, %esp ; X86-BMI2-NEXT: pushl %ecx ; X86-BMI2-NEXT: pushl %eax ; X86-BMI2-NEXT: calll use64@PLT ; X86-BMI2-NEXT: addl $16, %esp ; X86-BMI2-NEXT: movl %edi, %eax ; X86-BMI2-NEXT: movl %esi, %edx ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: popl %edi ; X86-BMI2-NEXT: popl %ebx ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_d5_skipextrauses: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: pushq %rbx ; X64-NOBMI-NEXT: movq %rdi, %rbx ; X64-NOBMI-NEXT: movl %esi, %ecx ; X64-NOBMI-NEXT: shrq %cl, %rbx ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rbx ; X64-NOBMI-NEXT: shrq %cl, %rbx ; X64-NOBMI-NEXT: movq %rsi, %rdi ; X64-NOBMI-NEXT: callq use64@PLT ; X64-NOBMI-NEXT: movq %rbx, %rax ; X64-NOBMI-NEXT: popq %rbx ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_d5_skipextrauses: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: pushq %rbx ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rbx ; X64-BMI1-NEXT: movq %rsi, %rdi ; X64-BMI1-NEXT: callq use64@PLT ; X64-BMI1-NEXT: movq %rbx, %rax ; X64-BMI1-NEXT: popq %rbx ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_d5_skipextrauses: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: pushq %rbx ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rbx ; X64-BMI2-NEXT: movq %rsi, %rdi ; X64-BMI2-NEXT: callq use64@PLT ; X64-BMI2-NEXT: movq %rbx, %rax ; X64-BMI2-NEXT: popq %rbx ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %highbitscleared = shl i64 %shifted, %numhighbits %masked = lshr i64 %highbitscleared, %numhighbits call void @use64(i64 %numskipbits) ret i64 %masked } ; 64-bit, but with 32-bit output ; Everything done in 64-bit, truncation happens last. define i32 @bextr64_32_d0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_d0: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %esi, %edx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB61_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %eax, %edx ; X86-NOBMI-NEXT: xorl %eax, %eax ; X86-NOBMI-NEXT: .LBB61_2: ; X86-NOBMI-NEXT: movb $64, %cl ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shldl %cl, %edx, %eax ; X86-NOBMI-NEXT: shll %cl, %edx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: je .LBB61_4 ; X86-NOBMI-NEXT: # %bb.3: ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: .LBB61_4: ; X86-NOBMI-NEXT: shrdl %cl, %eax, %edx ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB61_6 ; X86-NOBMI-NEXT: # %bb.5: ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: .LBB61_6: ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_d0: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl %esi, %eax ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: shrdl %cl, %esi, %edx ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB61_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %eax, %edx ; X86-BMI1-NEXT: xorl %eax, %eax ; X86-BMI1-NEXT: .LBB61_2: ; X86-BMI1-NEXT: movb $64, %cl ; X86-BMI1-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: shldl %cl, %edx, %eax ; X86-BMI1-NEXT: shll %cl, %edx ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: je .LBB61_4 ; X86-BMI1-NEXT: # %bb.3: ; X86-BMI1-NEXT: movl %edx, %eax ; X86-BMI1-NEXT: xorl %edx, %edx ; X86-BMI1-NEXT: .LBB61_4: ; X86-BMI1-NEXT: shrdl %cl, %eax, %edx ; X86-BMI1-NEXT: shrl %cl, %eax ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB61_6 ; X86-BMI1-NEXT: # %bb.5: ; X86-BMI1-NEXT: movl %edx, %eax ; X86-BMI1-NEXT: .LBB61_6: ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_d0: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: shrxl %ecx, %edx, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB61_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: movl %edx, %eax ; X86-BMI2-NEXT: xorl %edx, %edx ; X86-BMI2-NEXT: .LBB61_2: ; X86-BMI2-NEXT: movb $64, %cl ; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: shldl %cl, %eax, %edx ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB61_4 ; X86-BMI2-NEXT: # %bb.3: ; X86-BMI2-NEXT: movl %eax, %edx ; X86-BMI2-NEXT: xorl %eax, %eax ; X86-BMI2-NEXT: .LBB61_4: ; X86-BMI2-NEXT: shrdl %cl, %edx, %eax ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB61_6 ; X86-BMI2-NEXT: # %bb.5: ; X86-BMI2-NEXT: shrxl %ecx, %edx, %eax ; X86-BMI2-NEXT: .LBB61_6: ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_d0: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq %rdi, %rax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shlq %cl, %rax ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_d0: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_d0: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhiq %rdx, %rax, %rax ; X64-BMI2-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %numhighbits = sub i64 64, %numlowbits %highbitscleared = shl i64 %shifted, %numhighbits %masked = lshr i64 %highbitscleared, %numhighbits %res = trunc i64 %masked to i32 ret i32 %res } ; Shifting happens in 64-bit, then truncation. Masking is 32-bit. define i32 @bextr64_32_d1(i64 %val, i64 %numskipbits, i32 %numlowbits) nounwind { ; X86-NOBMI-LABEL: bextr64_32_d1: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: pushl %esi ; X86-NOBMI-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-NOBMI-NEXT: movl %esi, %eax ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: shrdl %cl, %esi, %edx ; X86-NOBMI-NEXT: testb $32, %cl ; X86-NOBMI-NEXT: jne .LBB62_2 ; X86-NOBMI-NEXT: # %bb.1: ; X86-NOBMI-NEXT: movl %edx, %eax ; X86-NOBMI-NEXT: .LBB62_2: ; X86-NOBMI-NEXT: xorl %ecx, %ecx ; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl ; X86-NOBMI-NEXT: shll %cl, %eax ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx ; X86-NOBMI-NEXT: shrl %cl, %eax ; X86-NOBMI-NEXT: popl %esi ; X86-NOBMI-NEXT: retl ; ; X86-BMI1-LABEL: bextr64_32_d1: ; X86-BMI1: # %bb.0: ; X86-BMI1-NEXT: pushl %edi ; X86-BMI1-NEXT: pushl %esi ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI1-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI1-NEXT: movl {{[0-9]+}}(%esp), %edi ; X86-BMI1-NEXT: movl %edi, %edx ; X86-BMI1-NEXT: shrl %cl, %edx ; X86-BMI1-NEXT: shrdl %cl, %edi, %esi ; X86-BMI1-NEXT: testb $32, %cl ; X86-BMI1-NEXT: jne .LBB62_2 ; X86-BMI1-NEXT: # %bb.1: ; X86-BMI1-NEXT: movl %esi, %edx ; X86-BMI1-NEXT: .LBB62_2: ; X86-BMI1-NEXT: shll $8, %eax ; X86-BMI1-NEXT: bextrl %eax, %edx, %eax ; X86-BMI1-NEXT: popl %esi ; X86-BMI1-NEXT: popl %edi ; X86-BMI1-NEXT: retl ; ; X86-BMI2-LABEL: bextr64_32_d1: ; X86-BMI2: # %bb.0: ; X86-BMI2-NEXT: pushl %esi ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al ; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi ; X86-BMI2-NEXT: shrdl %cl, %esi, %edx ; X86-BMI2-NEXT: testb $32, %cl ; X86-BMI2-NEXT: je .LBB62_2 ; X86-BMI2-NEXT: # %bb.1: ; X86-BMI2-NEXT: shrxl %ecx, %esi, %edx ; X86-BMI2-NEXT: .LBB62_2: ; X86-BMI2-NEXT: bzhil %eax, %edx, %eax ; X86-BMI2-NEXT: popl %esi ; X86-BMI2-NEXT: retl ; ; X64-NOBMI-LABEL: bextr64_32_d1: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rsi, %rcx ; X64-NOBMI-NEXT: movq %rdi, %rax ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx ; X64-NOBMI-NEXT: shrq %cl, %rax ; X64-NOBMI-NEXT: negb %dl ; X64-NOBMI-NEXT: movl %edx, %ecx ; X64-NOBMI-NEXT: shll %cl, %eax ; X64-NOBMI-NEXT: shrl %cl, %eax ; X64-NOBMI-NEXT: # kill: def $eax killed $eax killed $rax ; X64-NOBMI-NEXT: retq ; ; X64-BMI1-LABEL: bextr64_32_d1: ; X64-BMI1: # %bb.0: ; X64-BMI1-NEXT: shll $8, %edx ; X64-BMI1-NEXT: movzbl %sil, %eax ; X64-BMI1-NEXT: orl %edx, %eax ; X64-BMI1-NEXT: bextrq %rax, %rdi, %rax ; X64-BMI1-NEXT: # kill: def $eax killed $eax killed $rax ; X64-BMI1-NEXT: retq ; ; X64-BMI2-LABEL: bextr64_32_d1: ; X64-BMI2: # %bb.0: ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax ; X64-BMI2-NEXT: bzhil %edx, %eax, %eax ; X64-BMI2-NEXT: retq %shifted = lshr i64 %val, %numskipbits %truncshifted = trunc i64 %shifted to i32 %numhighbits = sub i32 32, %numlowbits %highbitscleared = shl i32 %truncshifted, %numhighbits %masked = lshr i32 %highbitscleared, %numhighbits ret i32 %masked } ; ---------------------------------------------------------------------------- ; ; Constant ; ---------------------------------------------------------------------------- ; ; https://bugs.llvm.org/show_bug.cgi?id=38938 define void @pr38938(i32* %a0, i64* %a1) nounwind { ; X86-NOBMI-LABEL: pr38938: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NOBMI-NEXT: movl (%ecx), %ecx ; X86-NOBMI-NEXT: shrl $19, %ecx ; X86-NOBMI-NEXT: andl $4092, %ecx # imm = 0xFFC ; X86-NOBMI-NEXT: incl (%eax,%ecx) ; X86-NOBMI-NEXT: retl ; ; X86-BMINOTBM-LABEL: pr38938: ; X86-BMINOTBM: # %bb.0: ; X86-BMINOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMINOTBM-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMINOTBM-NEXT: movl $2581, %edx # imm = 0xA15 ; X86-BMINOTBM-NEXT: bextrl %edx, (%ecx), %ecx ; X86-BMINOTBM-NEXT: incl (%eax,%ecx,4) ; X86-BMINOTBM-NEXT: retl ; ; X86-BMITBM-LABEL: pr38938: ; X86-BMITBM: # %bb.0: ; X86-BMITBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMITBM-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-BMITBM-NEXT: bextrl $2581, (%ecx), %ecx # imm = 0xA15 ; X86-BMITBM-NEXT: incl (%eax,%ecx,4) ; X86-BMITBM-NEXT: retl ; ; X64-NOBMI-LABEL: pr38938: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq (%rsi), %rax ; X64-NOBMI-NEXT: shrq $19, %rax ; X64-NOBMI-NEXT: andl $4092, %eax # imm = 0xFFC ; X64-NOBMI-NEXT: incl (%rdi,%rax) ; X64-NOBMI-NEXT: retq ; ; X64-BMINOTBM-LABEL: pr38938: ; X64-BMINOTBM: # %bb.0: ; X64-BMINOTBM-NEXT: movl $2581, %eax # imm = 0xA15 ; X64-BMINOTBM-NEXT: bextrq %rax, (%rsi), %rax ; X64-BMINOTBM-NEXT: incl (%rdi,%rax,4) ; X64-BMINOTBM-NEXT: retq ; ; X64-BMITBM-LABEL: pr38938: ; X64-BMITBM: # %bb.0: ; X64-BMITBM-NEXT: bextrq $2581, (%rsi), %rax # imm = 0xA15 ; X64-BMITBM-NEXT: incl (%rdi,%rax,4) ; X64-BMITBM-NEXT: retq %tmp = load i64, i64* %a1, align 8 %tmp1 = lshr i64 %tmp, 21 %tmp2 = and i64 %tmp1, 1023 %tmp3 = getelementptr inbounds i32, i32* %a0, i64 %tmp2 %tmp4 = load i32, i32* %tmp3, align 4 %tmp5 = add nsw i32 %tmp4, 1 store i32 %tmp5, i32* %tmp3, align 4 ret void } ; The most canonical variant define i32 @c0_i32(i32 %arg) nounwind { ; X86-NOBMI-LABEL: c0_i32: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: shrl $19, %eax ; X86-NOBMI-NEXT: andl $1023, %eax # imm = 0x3FF ; X86-NOBMI-NEXT: retl ; ; X86-BMINOTBM-LABEL: c0_i32: ; X86-BMINOTBM: # %bb.0: ; X86-BMINOTBM-NEXT: movl $2579, %eax # imm = 0xA13 ; X86-BMINOTBM-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax ; X86-BMINOTBM-NEXT: retl ; ; X86-BMITBM-LABEL: c0_i32: ; X86-BMITBM: # %bb.0: ; X86-BMITBM-NEXT: bextrl $2579, {{[0-9]+}}(%esp), %eax # imm = 0xA13 ; X86-BMITBM-NEXT: retl ; ; X64-NOBMI-LABEL: c0_i32: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movl %edi, %eax ; X64-NOBMI-NEXT: shrl $19, %eax ; X64-NOBMI-NEXT: andl $1023, %eax # imm = 0x3FF ; X64-NOBMI-NEXT: retq ; ; X64-BMINOTBM-LABEL: c0_i32: ; X64-BMINOTBM: # %bb.0: ; X64-BMINOTBM-NEXT: movl $2579, %eax # imm = 0xA13 ; X64-BMINOTBM-NEXT: bextrl %eax, %edi, %eax ; X64-BMINOTBM-NEXT: retq ; ; X64-BMITBM-LABEL: c0_i32: ; X64-BMITBM: # %bb.0: ; X64-BMITBM-NEXT: bextrl $2579, %edi, %eax # imm = 0xA13 ; X64-BMITBM-NEXT: retq %tmp0 = lshr i32 %arg, 19 %tmp1 = and i32 %tmp0, 1023 ret i32 %tmp1 } ; Should be still fine, but the mask is shifted define i32 @c1_i32(i32 %arg) nounwind { ; X86-LABEL: c1_i32: ; X86: # %bb.0: ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: shrl $19, %eax ; X86-NEXT: andl $4092, %eax # imm = 0xFFC ; X86-NEXT: retl ; ; X64-LABEL: c1_i32: ; X64: # %bb.0: ; X64-NEXT: movl %edi, %eax ; X64-NEXT: shrl $19, %eax ; X64-NEXT: andl $4092, %eax # imm = 0xFFC ; X64-NEXT: retq %tmp0 = lshr i32 %arg, 19 %tmp1 = and i32 %tmp0, 4092 ret i32 %tmp1 } ; Should be still fine, but the result is shifted left afterwards define i32 @c2_i32(i32 %arg) nounwind { ; X86-LABEL: c2_i32: ; X86: # %bb.0: ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: shrl $17, %eax ; X86-NEXT: andl $4092, %eax # imm = 0xFFC ; X86-NEXT: retl ; ; X64-LABEL: c2_i32: ; X64: # %bb.0: ; X64-NEXT: movl %edi, %eax ; X64-NEXT: shrl $17, %eax ; X64-NEXT: andl $4092, %eax # imm = 0xFFC ; X64-NEXT: retq %tmp0 = lshr i32 %arg, 19 %tmp1 = and i32 %tmp0, 1023 %tmp2 = shl i32 %tmp1, 2 ret i32 %tmp2 } ; The mask covers newly shifted-in bit define i32 @c4_i32_bad(i32 %arg) nounwind { ; X86-LABEL: c4_i32_bad: ; X86: # %bb.0: ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: shrl $19, %eax ; X86-NEXT: andl $-2, %eax ; X86-NEXT: retl ; ; X64-LABEL: c4_i32_bad: ; X64: # %bb.0: ; X64-NEXT: movl %edi, %eax ; X64-NEXT: shrl $19, %eax ; X64-NEXT: andl $-2, %eax ; X64-NEXT: retq %tmp0 = lshr i32 %arg, 19 %tmp1 = and i32 %tmp0, 16382 ret i32 %tmp1 } ; i64 ; The most canonical variant define i64 @c0_i64(i64 %arg) nounwind { ; X86-NOBMI-LABEL: c0_i64: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: shrl $19, %eax ; X86-NOBMI-NEXT: andl $1023, %eax # imm = 0x3FF ; X86-NOBMI-NEXT: xorl %edx, %edx ; X86-NOBMI-NEXT: retl ; ; X86-BMINOTBM-LABEL: c0_i64: ; X86-BMINOTBM: # %bb.0: ; X86-BMINOTBM-NEXT: movl $2579, %eax # imm = 0xA13 ; X86-BMINOTBM-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax ; X86-BMINOTBM-NEXT: xorl %edx, %edx ; X86-BMINOTBM-NEXT: retl ; ; X86-BMITBM-LABEL: c0_i64: ; X86-BMITBM: # %bb.0: ; X86-BMITBM-NEXT: bextrl $2579, {{[0-9]+}}(%esp), %eax # imm = 0xA13 ; X86-BMITBM-NEXT: xorl %edx, %edx ; X86-BMITBM-NEXT: retl ; ; X64-NOBMI-LABEL: c0_i64: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: movq %rdi, %rax ; X64-NOBMI-NEXT: shrq $51, %rax ; X64-NOBMI-NEXT: andl $1023, %eax # imm = 0x3FF ; X64-NOBMI-NEXT: retq ; ; X64-BMINOTBM-LABEL: c0_i64: ; X64-BMINOTBM: # %bb.0: ; X64-BMINOTBM-NEXT: movl $2611, %eax # imm = 0xA33 ; X64-BMINOTBM-NEXT: bextrq %rax, %rdi, %rax ; X64-BMINOTBM-NEXT: retq ; ; X64-BMITBM-LABEL: c0_i64: ; X64-BMITBM: # %bb.0: ; X64-BMITBM-NEXT: bextrq $2611, %rdi, %rax # imm = 0xA33 ; X64-BMITBM-NEXT: retq %tmp0 = lshr i64 %arg, 51 %tmp1 = and i64 %tmp0, 1023 ret i64 %tmp1 } ; Should be still fine, but the mask is shifted define i64 @c1_i64(i64 %arg) nounwind { ; X86-LABEL: c1_i64: ; X86: # %bb.0: ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: shrl $19, %eax ; X86-NEXT: andl $4092, %eax # imm = 0xFFC ; X86-NEXT: xorl %edx, %edx ; X86-NEXT: retl ; ; X64-LABEL: c1_i64: ; X64: # %bb.0: ; X64-NEXT: movq %rdi, %rax ; X64-NEXT: shrq $51, %rax ; X64-NEXT: andl $4092, %eax # imm = 0xFFC ; X64-NEXT: retq %tmp0 = lshr i64 %arg, 51 %tmp1 = and i64 %tmp0, 4092 ret i64 %tmp1 } ; Should be still fine, but the result is shifted left afterwards define i64 @c2_i64(i64 %arg) nounwind { ; X86-LABEL: c2_i64: ; X86: # %bb.0: ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: shrl $17, %eax ; X86-NEXT: andl $4092, %eax # imm = 0xFFC ; X86-NEXT: xorl %edx, %edx ; X86-NEXT: retl ; ; X64-LABEL: c2_i64: ; X64: # %bb.0: ; X64-NEXT: movq %rdi, %rax ; X64-NEXT: shrq $49, %rax ; X64-NEXT: andl $4092, %eax # imm = 0xFFC ; X64-NEXT: retq %tmp0 = lshr i64 %arg, 51 %tmp1 = and i64 %tmp0, 1023 %tmp2 = shl i64 %tmp1, 2 ret i64 %tmp2 } ; The mask covers newly shifted-in bit define i64 @c4_i64_bad(i64 %arg) nounwind { ; X86-LABEL: c4_i64_bad: ; X86: # %bb.0: ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: shrl $19, %eax ; X86-NEXT: andl $-2, %eax ; X86-NEXT: xorl %edx, %edx ; X86-NEXT: retl ; ; X64-LABEL: c4_i64_bad: ; X64: # %bb.0: ; X64-NEXT: movq %rdi, %rax ; X64-NEXT: shrq $51, %rax ; X64-NEXT: andl $-2, %eax ; X64-NEXT: retq %tmp0 = lshr i64 %arg, 51 %tmp1 = and i64 %tmp0, 16382 ret i64 %tmp1 } ; ---------------------------------------------------------------------------- ; ; Constant, storing the result afterwards. ; ---------------------------------------------------------------------------- ; ; i32 ; The most canonical variant define void @c5_i32(i32 %arg, i32* %ptr) nounwind { ; X86-NOBMI-LABEL: c5_i32: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NOBMI-NEXT: shrl $19, %ecx ; X86-NOBMI-NEXT: andl $1023, %ecx # imm = 0x3FF ; X86-NOBMI-NEXT: movl %ecx, (%eax) ; X86-NOBMI-NEXT: retl ; ; X86-BMINOTBM-LABEL: c5_i32: ; X86-BMINOTBM: # %bb.0: ; X86-BMINOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMINOTBM-NEXT: movl $2579, %ecx # imm = 0xA13 ; X86-BMINOTBM-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMINOTBM-NEXT: movl %ecx, (%eax) ; X86-BMINOTBM-NEXT: retl ; ; X86-BMITBM-LABEL: c5_i32: ; X86-BMITBM: # %bb.0: ; X86-BMITBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMITBM-NEXT: bextrl $2579, {{[0-9]+}}(%esp), %ecx # imm = 0xA13 ; X86-BMITBM-NEXT: movl %ecx, (%eax) ; X86-BMITBM-NEXT: retl ; ; X64-NOBMI-LABEL: c5_i32: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: shrl $19, %edi ; X64-NOBMI-NEXT: andl $1023, %edi # imm = 0x3FF ; X64-NOBMI-NEXT: movl %edi, (%rsi) ; X64-NOBMI-NEXT: retq ; ; X64-BMINOTBM-LABEL: c5_i32: ; X64-BMINOTBM: # %bb.0: ; X64-BMINOTBM-NEXT: movl $2579, %eax # imm = 0xA13 ; X64-BMINOTBM-NEXT: bextrl %eax, %edi, %eax ; X64-BMINOTBM-NEXT: movl %eax, (%rsi) ; X64-BMINOTBM-NEXT: retq ; ; X64-BMITBM-LABEL: c5_i32: ; X64-BMITBM: # %bb.0: ; X64-BMITBM-NEXT: bextrl $2579, %edi, %eax # imm = 0xA13 ; X64-BMITBM-NEXT: movl %eax, (%rsi) ; X64-BMITBM-NEXT: retq %tmp0 = lshr i32 %arg, 19 %tmp1 = and i32 %tmp0, 1023 store i32 %tmp1, i32* %ptr ret void } ; Should be still fine, but the mask is shifted define void @c6_i32(i32 %arg, i32* %ptr) nounwind { ; X86-NOBMI-LABEL: c6_i32: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NOBMI-NEXT: shrl $19, %ecx ; X86-NOBMI-NEXT: andl $4095, %ecx # imm = 0xFFF ; X86-NOBMI-NEXT: movl %ecx, (%eax) ; X86-NOBMI-NEXT: retl ; ; X86-BMINOTBM-LABEL: c6_i32: ; X86-BMINOTBM: # %bb.0: ; X86-BMINOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMINOTBM-NEXT: movl $3091, %ecx # imm = 0xC13 ; X86-BMINOTBM-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMINOTBM-NEXT: movl %ecx, (%eax) ; X86-BMINOTBM-NEXT: retl ; ; X86-BMITBM-LABEL: c6_i32: ; X86-BMITBM: # %bb.0: ; X86-BMITBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMITBM-NEXT: bextrl $3091, {{[0-9]+}}(%esp), %ecx # imm = 0xC13 ; X86-BMITBM-NEXT: movl %ecx, (%eax) ; X86-BMITBM-NEXT: retl ; ; X64-NOBMI-LABEL: c6_i32: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: shrl $19, %edi ; X64-NOBMI-NEXT: andl $4095, %edi # imm = 0xFFF ; X64-NOBMI-NEXT: movl %edi, (%rsi) ; X64-NOBMI-NEXT: retq ; ; X64-BMINOTBM-LABEL: c6_i32: ; X64-BMINOTBM: # %bb.0: ; X64-BMINOTBM-NEXT: movl $3091, %eax # imm = 0xC13 ; X64-BMINOTBM-NEXT: bextrl %eax, %edi, %eax ; X64-BMINOTBM-NEXT: movl %eax, (%rsi) ; X64-BMINOTBM-NEXT: retq ; ; X64-BMITBM-LABEL: c6_i32: ; X64-BMITBM: # %bb.0: ; X64-BMITBM-NEXT: bextrl $3091, %edi, %eax # imm = 0xC13 ; X64-BMITBM-NEXT: movl %eax, (%rsi) ; X64-BMITBM-NEXT: retq %tmp0 = lshr i32 %arg, 19 %tmp1 = and i32 %tmp0, 4095 store i32 %tmp1, i32* %ptr ret void } ; Should be still fine, but the result is shifted left afterwards define void @c7_i32(i32 %arg, i32* %ptr) nounwind { ; X86-LABEL: c7_i32: ; X86: # %bb.0: ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NEXT: shrl $17, %ecx ; X86-NEXT: andl $4092, %ecx # imm = 0xFFC ; X86-NEXT: movl %ecx, (%eax) ; X86-NEXT: retl ; ; X64-LABEL: c7_i32: ; X64: # %bb.0: ; X64-NEXT: shrl $17, %edi ; X64-NEXT: andl $4092, %edi # imm = 0xFFC ; X64-NEXT: movl %edi, (%rsi) ; X64-NEXT: retq %tmp0 = lshr i32 %arg, 19 %tmp1 = and i32 %tmp0, 1023 %tmp2 = shl i32 %tmp1, 2 store i32 %tmp2, i32* %ptr ret void } ; i64 ; The most canonical variant define void @c5_i64(i64 %arg, i64* %ptr) nounwind { ; X86-NOBMI-LABEL: c5_i64: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NOBMI-NEXT: shrl $19, %ecx ; X86-NOBMI-NEXT: andl $1023, %ecx # imm = 0x3FF ; X86-NOBMI-NEXT: movl %ecx, (%eax) ; X86-NOBMI-NEXT: movl $0, 4(%eax) ; X86-NOBMI-NEXT: retl ; ; X86-BMINOTBM-LABEL: c5_i64: ; X86-BMINOTBM: # %bb.0: ; X86-BMINOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMINOTBM-NEXT: movl $2579, %ecx # imm = 0xA13 ; X86-BMINOTBM-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMINOTBM-NEXT: movl %ecx, (%eax) ; X86-BMINOTBM-NEXT: movl $0, 4(%eax) ; X86-BMINOTBM-NEXT: retl ; ; X86-BMITBM-LABEL: c5_i64: ; X86-BMITBM: # %bb.0: ; X86-BMITBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMITBM-NEXT: bextrl $2579, {{[0-9]+}}(%esp), %ecx # imm = 0xA13 ; X86-BMITBM-NEXT: movl %ecx, (%eax) ; X86-BMITBM-NEXT: movl $0, 4(%eax) ; X86-BMITBM-NEXT: retl ; ; X64-NOBMI-LABEL: c5_i64: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: shrq $51, %rdi ; X64-NOBMI-NEXT: andl $1023, %edi # imm = 0x3FF ; X64-NOBMI-NEXT: movq %rdi, (%rsi) ; X64-NOBMI-NEXT: retq ; ; X64-BMINOTBM-LABEL: c5_i64: ; X64-BMINOTBM: # %bb.0: ; X64-BMINOTBM-NEXT: movl $2611, %eax # imm = 0xA33 ; X64-BMINOTBM-NEXT: bextrq %rax, %rdi, %rax ; X64-BMINOTBM-NEXT: movq %rax, (%rsi) ; X64-BMINOTBM-NEXT: retq ; ; X64-BMITBM-LABEL: c5_i64: ; X64-BMITBM: # %bb.0: ; X64-BMITBM-NEXT: bextrq $2611, %rdi, %rax # imm = 0xA33 ; X64-BMITBM-NEXT: movq %rax, (%rsi) ; X64-BMITBM-NEXT: retq %tmp0 = lshr i64 %arg, 51 %tmp1 = and i64 %tmp0, 1023 store i64 %tmp1, i64* %ptr ret void } ; Should be still fine, but the mask is shifted define void @c6_i64(i64 %arg, i64* %ptr) nounwind { ; X86-NOBMI-LABEL: c6_i64: ; X86-NOBMI: # %bb.0: ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NOBMI-NEXT: shrl $19, %ecx ; X86-NOBMI-NEXT: andl $4095, %ecx # imm = 0xFFF ; X86-NOBMI-NEXT: movl %ecx, (%eax) ; X86-NOBMI-NEXT: movl $0, 4(%eax) ; X86-NOBMI-NEXT: retl ; ; X86-BMINOTBM-LABEL: c6_i64: ; X86-BMINOTBM: # %bb.0: ; X86-BMINOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMINOTBM-NEXT: movl $3091, %ecx # imm = 0xC13 ; X86-BMINOTBM-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %ecx ; X86-BMINOTBM-NEXT: movl %ecx, (%eax) ; X86-BMINOTBM-NEXT: movl $0, 4(%eax) ; X86-BMINOTBM-NEXT: retl ; ; X86-BMITBM-LABEL: c6_i64: ; X86-BMITBM: # %bb.0: ; X86-BMITBM-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-BMITBM-NEXT: bextrl $3091, {{[0-9]+}}(%esp), %ecx # imm = 0xC13 ; X86-BMITBM-NEXT: movl %ecx, (%eax) ; X86-BMITBM-NEXT: movl $0, 4(%eax) ; X86-BMITBM-NEXT: retl ; ; X64-NOBMI-LABEL: c6_i64: ; X64-NOBMI: # %bb.0: ; X64-NOBMI-NEXT: shrq $51, %rdi ; X64-NOBMI-NEXT: andl $4095, %edi # imm = 0xFFF ; X64-NOBMI-NEXT: movq %rdi, (%rsi) ; X64-NOBMI-NEXT: retq ; ; X64-BMINOTBM-LABEL: c6_i64: ; X64-BMINOTBM: # %bb.0: ; X64-BMINOTBM-NEXT: movl $3123, %eax # imm = 0xC33 ; X64-BMINOTBM-NEXT: bextrq %rax, %rdi, %rax ; X64-BMINOTBM-NEXT: movq %rax, (%rsi) ; X64-BMINOTBM-NEXT: retq ; ; X64-BMITBM-LABEL: c6_i64: ; X64-BMITBM: # %bb.0: ; X64-BMITBM-NEXT: bextrq $3123, %rdi, %rax # imm = 0xC33 ; X64-BMITBM-NEXT: movq %rax, (%rsi) ; X64-BMITBM-NEXT: retq %tmp0 = lshr i64 %arg, 51 %tmp1 = and i64 %tmp0, 4095 store i64 %tmp1, i64* %ptr ret void } ; Should be still fine, but the result is shifted left afterwards define void @c7_i64(i64 %arg, i64* %ptr) nounwind { ; X86-LABEL: c7_i64: ; X86: # %bb.0: ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X86-NEXT: shrl $17, %ecx ; X86-NEXT: andl $4092, %ecx # imm = 0xFFC ; X86-NEXT: movl %ecx, (%eax) ; X86-NEXT: movl $0, 4(%eax) ; X86-NEXT: retl ; ; X64-LABEL: c7_i64: ; X64: # %bb.0: ; X64-NEXT: shrq $49, %rdi ; X64-NEXT: andl $4092, %edi # imm = 0xFFC ; X64-NEXT: movq %rdi, (%rsi) ; X64-NEXT: retq %tmp0 = lshr i64 %arg, 51 %tmp1 = and i64 %tmp0, 1023 %tmp2 = shl i64 %tmp1, 2 store i64 %tmp2, i64* %ptr ret void }