659 lines
18 KiB
LLVM
659 lines
18 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefixes=X86
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=X64
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; Check that we recognize this idiom for rotation too:
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; a << (b & (OpSize-1)) | a >> ((0 - b) & (OpSize-1))
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define i32 @rotate_left_32(i32 %a, i32 %b) {
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; X86-LABEL: rotate_left_32:
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; X86: # %bb.0:
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: roll %cl, %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: rotate_left_32:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %ecx
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: # kill: def $cl killed $cl killed $ecx
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; X64-NEXT: roll %cl, %eax
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; X64-NEXT: retq
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%and = and i32 %b, 31
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%shl = shl i32 %a, %and
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%t0 = sub i32 0, %b
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%and3 = and i32 %t0, 31
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%shr = lshr i32 %a, %and3
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%or = or i32 %shl, %shr
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ret i32 %or
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}
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define i32 @rotate_right_32(i32 %a, i32 %b) {
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; X86-LABEL: rotate_right_32:
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; X86: # %bb.0:
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: rorl %cl, %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: rotate_right_32:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %ecx
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; X64-NEXT: movl %edi, %eax
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; X64-NEXT: # kill: def $cl killed $cl killed $ecx
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; X64-NEXT: rorl %cl, %eax
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; X64-NEXT: retq
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%and = and i32 %b, 31
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%shl = lshr i32 %a, %and
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%t0 = sub i32 0, %b
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%and3 = and i32 %t0, 31
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%shr = shl i32 %a, %and3
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%or = or i32 %shl, %shr
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ret i32 %or
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}
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define i64 @rotate_left_64(i64 %a, i64 %b) {
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; X86-LABEL: rotate_left_64:
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; X86: # %bb.0:
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; X86-NEXT: pushl %ebx
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: pushl %edi
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; X86-NEXT: .cfi_def_cfa_offset 12
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 16
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; X86-NEXT: .cfi_offset %esi, -16
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; X86-NEXT: .cfi_offset %edi, -12
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; X86-NEXT: .cfi_offset %ebx, -8
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
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; X86-NEXT: movl %esi, %eax
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; X86-NEXT: shll %cl, %eax
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; X86-NEXT: movl %edi, %edx
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; X86-NEXT: shldl %cl, %esi, %edx
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; X86-NEXT: testb $32, %cl
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; X86-NEXT: je .LBB2_2
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; X86-NEXT: # %bb.1:
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; X86-NEXT: movl %eax, %edx
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; X86-NEXT: xorl %eax, %eax
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; X86-NEXT: .LBB2_2:
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; X86-NEXT: negb %cl
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; X86-NEXT: movl %edi, %ebx
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; X86-NEXT: shrl %cl, %ebx
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; X86-NEXT: shrdl %cl, %edi, %esi
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; X86-NEXT: testb $32, %cl
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; X86-NEXT: je .LBB2_4
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; X86-NEXT: # %bb.3:
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; X86-NEXT: movl %ebx, %esi
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; X86-NEXT: xorl %ebx, %ebx
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; X86-NEXT: .LBB2_4:
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; X86-NEXT: orl %ebx, %edx
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; X86-NEXT: orl %esi, %eax
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; X86-NEXT: popl %esi
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; X86-NEXT: .cfi_def_cfa_offset 12
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; X86-NEXT: popl %edi
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: popl %ebx
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; X86-NEXT: .cfi_def_cfa_offset 4
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; X86-NEXT: retl
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;
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; X64-LABEL: rotate_left_64:
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; X64: # %bb.0:
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; X64-NEXT: movq %rsi, %rcx
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; X64-NEXT: movq %rdi, %rax
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; X64-NEXT: # kill: def $cl killed $cl killed $rcx
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; X64-NEXT: rolq %cl, %rax
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; X64-NEXT: retq
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%and = and i64 %b, 63
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%shl = shl i64 %a, %and
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%t0 = sub i64 0, %b
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%and3 = and i64 %t0, 63
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%shr = lshr i64 %a, %and3
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%or = or i64 %shl, %shr
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ret i64 %or
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}
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define i64 @rotate_right_64(i64 %a, i64 %b) {
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; X86-LABEL: rotate_right_64:
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; X86: # %bb.0:
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; X86-NEXT: pushl %ebx
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: pushl %edi
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; X86-NEXT: .cfi_def_cfa_offset 12
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 16
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; X86-NEXT: .cfi_offset %esi, -16
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; X86-NEXT: .cfi_offset %edi, -12
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; X86-NEXT: .cfi_offset %ebx, -8
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
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; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X86-NEXT: movl %esi, %edx
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; X86-NEXT: shrl %cl, %edx
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; X86-NEXT: movl %edi, %eax
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; X86-NEXT: shrdl %cl, %esi, %eax
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; X86-NEXT: testb $32, %cl
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; X86-NEXT: je .LBB3_2
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; X86-NEXT: # %bb.1:
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; X86-NEXT: movl %edx, %eax
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; X86-NEXT: xorl %edx, %edx
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; X86-NEXT: .LBB3_2:
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; X86-NEXT: negb %cl
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; X86-NEXT: movl %edi, %ebx
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; X86-NEXT: shll %cl, %ebx
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; X86-NEXT: shldl %cl, %edi, %esi
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; X86-NEXT: testb $32, %cl
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; X86-NEXT: je .LBB3_4
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; X86-NEXT: # %bb.3:
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; X86-NEXT: movl %ebx, %esi
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; X86-NEXT: xorl %ebx, %ebx
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; X86-NEXT: .LBB3_4:
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; X86-NEXT: orl %esi, %edx
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; X86-NEXT: orl %ebx, %eax
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; X86-NEXT: popl %esi
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; X86-NEXT: .cfi_def_cfa_offset 12
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; X86-NEXT: popl %edi
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: popl %ebx
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; X86-NEXT: .cfi_def_cfa_offset 4
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; X86-NEXT: retl
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;
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; X64-LABEL: rotate_right_64:
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; X64: # %bb.0:
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; X64-NEXT: movq %rsi, %rcx
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; X64-NEXT: movq %rdi, %rax
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; X64-NEXT: # kill: def $cl killed $cl killed $rcx
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; X64-NEXT: rorq %cl, %rax
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; X64-NEXT: retq
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%and = and i64 %b, 63
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%shl = lshr i64 %a, %and
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%t0 = sub i64 0, %b
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%and3 = and i64 %t0, 63
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%shr = shl i64 %a, %and3
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%or = or i64 %shl, %shr
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ret i64 %or
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}
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; Also check mem operand.
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define void @rotate_left_m32(i32 *%pa, i32 %b) {
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; X86-LABEL: rotate_left_m32:
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; X86: # %bb.0:
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: roll %cl, (%eax)
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; X86-NEXT: retl
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;
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; X64-LABEL: rotate_left_m32:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %ecx
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; X64-NEXT: # kill: def $cl killed $cl killed $ecx
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; X64-NEXT: roll %cl, (%rdi)
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; X64-NEXT: retq
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%a = load i32, i32* %pa, align 16
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%and = and i32 %b, 31
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%shl = shl i32 %a, %and
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%t0 = sub i32 0, %b
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%and3 = and i32 %t0, 31
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%shr = lshr i32 %a, %and3
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%or = or i32 %shl, %shr
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store i32 %or, i32* %pa, align 32
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ret void
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}
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define void @rotate_right_m32(i32 *%pa, i32 %b) {
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; X86-LABEL: rotate_right_m32:
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; X86: # %bb.0:
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: rorl %cl, (%eax)
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; X86-NEXT: retl
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;
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; X64-LABEL: rotate_right_m32:
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; X64: # %bb.0:
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; X64-NEXT: movl %esi, %ecx
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; X64-NEXT: # kill: def $cl killed $cl killed $ecx
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; X64-NEXT: rorl %cl, (%rdi)
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; X64-NEXT: retq
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%a = load i32, i32* %pa, align 16
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%and = and i32 %b, 31
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%shl = lshr i32 %a, %and
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%t0 = sub i32 0, %b
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%and3 = and i32 %t0, 31
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%shr = shl i32 %a, %and3
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%or = or i32 %shl, %shr
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store i32 %or, i32* %pa, align 32
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ret void
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}
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define void @rotate_left_m64(i64 *%pa, i64 %b) {
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; X86-LABEL: rotate_left_m64:
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; X86: # %bb.0:
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; X86-NEXT: pushl %ebp
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: pushl %ebx
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; X86-NEXT: .cfi_def_cfa_offset 12
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; X86-NEXT: pushl %edi
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; X86-NEXT: .cfi_def_cfa_offset 16
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 20
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; X86-NEXT: .cfi_offset %esi, -20
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; X86-NEXT: .cfi_offset %edi, -16
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; X86-NEXT: .cfi_offset %ebx, -12
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; X86-NEXT: .cfi_offset %ebp, -8
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; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl (%eax), %esi
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; X86-NEXT: movl 4(%eax), %ebx
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; X86-NEXT: movl %esi, %edx
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; X86-NEXT: shll %cl, %edx
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; X86-NEXT: movl %ebx, %edi
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; X86-NEXT: shldl %cl, %esi, %edi
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; X86-NEXT: testb $32, %cl
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; X86-NEXT: je .LBB6_2
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; X86-NEXT: # %bb.1:
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; X86-NEXT: movl %edx, %edi
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; X86-NEXT: xorl %edx, %edx
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; X86-NEXT: .LBB6_2:
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; X86-NEXT: negb %cl
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; X86-NEXT: movl %ebx, %ebp
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; X86-NEXT: shrl %cl, %ebp
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; X86-NEXT: shrdl %cl, %ebx, %esi
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; X86-NEXT: testb $32, %cl
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; X86-NEXT: je .LBB6_4
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; X86-NEXT: # %bb.3:
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; X86-NEXT: movl %ebp, %esi
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; X86-NEXT: xorl %ebp, %ebp
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; X86-NEXT: .LBB6_4:
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; X86-NEXT: orl %esi, %edx
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; X86-NEXT: orl %ebp, %edi
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; X86-NEXT: movl %edx, (%eax)
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; X86-NEXT: movl %edi, 4(%eax)
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; X86-NEXT: popl %esi
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; X86-NEXT: .cfi_def_cfa_offset 16
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; X86-NEXT: popl %edi
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; X86-NEXT: .cfi_def_cfa_offset 12
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; X86-NEXT: popl %ebx
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: popl %ebp
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; X86-NEXT: .cfi_def_cfa_offset 4
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; X86-NEXT: retl
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;
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; X64-LABEL: rotate_left_m64:
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; X64: # %bb.0:
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; X64-NEXT: movq %rsi, %rcx
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; X64-NEXT: # kill: def $cl killed $cl killed $rcx
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; X64-NEXT: rolq %cl, (%rdi)
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; X64-NEXT: retq
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%a = load i64, i64* %pa, align 16
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%and = and i64 %b, 63
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%shl = shl i64 %a, %and
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%t0 = sub i64 0, %b
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%and3 = and i64 %t0, 63
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%shr = lshr i64 %a, %and3
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%or = or i64 %shl, %shr
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store i64 %or, i64* %pa, align 64
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ret void
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}
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define void @rotate_right_m64(i64 *%pa, i64 %b) {
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; X86-LABEL: rotate_right_m64:
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; X86: # %bb.0:
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; X86-NEXT: pushl %ebp
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: pushl %ebx
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; X86-NEXT: .cfi_def_cfa_offset 12
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|
|
; X86-NEXT: pushl %edi
|
||
|
|
; X86-NEXT: .cfi_def_cfa_offset 16
|
||
|
|
; X86-NEXT: pushl %esi
|
||
|
|
; X86-NEXT: .cfi_def_cfa_offset 20
|
||
|
|
; X86-NEXT: .cfi_offset %esi, -20
|
||
|
|
; X86-NEXT: .cfi_offset %edi, -16
|
||
|
|
; X86-NEXT: .cfi_offset %ebx, -12
|
||
|
|
; X86-NEXT: .cfi_offset %ebp, -8
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: movl (%eax), %ebx
|
||
|
|
; X86-NEXT: movl 4(%eax), %esi
|
||
|
|
; X86-NEXT: movl %esi, %edx
|
||
|
|
; X86-NEXT: shrl %cl, %edx
|
||
|
|
; X86-NEXT: movl %ebx, %edi
|
||
|
|
; X86-NEXT: shrdl %cl, %esi, %edi
|
||
|
|
; X86-NEXT: testb $32, %cl
|
||
|
|
; X86-NEXT: je .LBB7_2
|
||
|
|
; X86-NEXT: # %bb.1:
|
||
|
|
; X86-NEXT: movl %edx, %edi
|
||
|
|
; X86-NEXT: xorl %edx, %edx
|
||
|
|
; X86-NEXT: .LBB7_2:
|
||
|
|
; X86-NEXT: negb %cl
|
||
|
|
; X86-NEXT: movl %ebx, %ebp
|
||
|
|
; X86-NEXT: shll %cl, %ebp
|
||
|
|
; X86-NEXT: shldl %cl, %ebx, %esi
|
||
|
|
; X86-NEXT: testb $32, %cl
|
||
|
|
; X86-NEXT: je .LBB7_4
|
||
|
|
; X86-NEXT: # %bb.3:
|
||
|
|
; X86-NEXT: movl %ebp, %esi
|
||
|
|
; X86-NEXT: xorl %ebp, %ebp
|
||
|
|
; X86-NEXT: .LBB7_4:
|
||
|
|
; X86-NEXT: orl %ebp, %edi
|
||
|
|
; X86-NEXT: orl %esi, %edx
|
||
|
|
; X86-NEXT: movl %edi, (%eax)
|
||
|
|
; X86-NEXT: movl %edx, 4(%eax)
|
||
|
|
; X86-NEXT: popl %esi
|
||
|
|
; X86-NEXT: .cfi_def_cfa_offset 16
|
||
|
|
; X86-NEXT: popl %edi
|
||
|
|
; X86-NEXT: .cfi_def_cfa_offset 12
|
||
|
|
; X86-NEXT: popl %ebx
|
||
|
|
; X86-NEXT: .cfi_def_cfa_offset 8
|
||
|
|
; X86-NEXT: popl %ebp
|
||
|
|
; X86-NEXT: .cfi_def_cfa_offset 4
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_right_m64:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movq %rsi, %rcx
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $rcx
|
||
|
|
; X64-NEXT: rorq %cl, (%rdi)
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%a = load i64, i64* %pa, align 16
|
||
|
|
%and = and i64 %b, 63
|
||
|
|
%shl = lshr i64 %a, %and
|
||
|
|
%t0 = sub i64 0, %b
|
||
|
|
%and3 = and i64 %t0, 63
|
||
|
|
%shr = shl i64 %a, %and3
|
||
|
|
%or = or i64 %shl, %shr
|
||
|
|
store i64 %or, i64* %pa, align 64
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; The next 8 tests include masks of the narrow width shift amounts that should be eliminated.
|
||
|
|
; These patterns are produced by instcombine after r310509.
|
||
|
|
|
||
|
|
define i8 @rotate_left_8(i8 %x, i32 %amount) {
|
||
|
|
; X86-LABEL: rotate_left_8:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %al
|
||
|
|
; X86-NEXT: rolb %cl, %al
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_left_8:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: movl %edi, %eax
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: rolb %cl, %al
|
||
|
|
; X64-NEXT: # kill: def $al killed $al killed $eax
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%amt = trunc i32 %amount to i8
|
||
|
|
%sub = sub i8 0, %amt
|
||
|
|
%maskamt = and i8 %amt, 7
|
||
|
|
%masksub = and i8 %sub, 7
|
||
|
|
%shl = shl i8 %x, %maskamt
|
||
|
|
%shr = lshr i8 %x, %masksub
|
||
|
|
%or = or i8 %shl, %shr
|
||
|
|
ret i8 %or
|
||
|
|
}
|
||
|
|
|
||
|
|
define i8 @rotate_right_8(i8 %x, i32 %amount) {
|
||
|
|
; X86-LABEL: rotate_right_8:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %al
|
||
|
|
; X86-NEXT: rorb %cl, %al
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_right_8:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: movl %edi, %eax
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: rorb %cl, %al
|
||
|
|
; X64-NEXT: # kill: def $al killed $al killed $eax
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%amt = trunc i32 %amount to i8
|
||
|
|
%sub = sub i8 0, %amt
|
||
|
|
%maskamt = and i8 %amt, 7
|
||
|
|
%masksub = and i8 %sub, 7
|
||
|
|
%shr = lshr i8 %x, %maskamt
|
||
|
|
%shl = shl i8 %x, %masksub
|
||
|
|
%or = or i8 %shr, %shl
|
||
|
|
ret i8 %or
|
||
|
|
}
|
||
|
|
|
||
|
|
define i16 @rotate_left_16(i16 %x, i32 %amount) {
|
||
|
|
; X86-LABEL: rotate_left_16:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: rolw %cl, %ax
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_left_16:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: movl %edi, %eax
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: rolw %cl, %ax
|
||
|
|
; X64-NEXT: # kill: def $ax killed $ax killed $eax
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%amt = trunc i32 %amount to i16
|
||
|
|
%sub = sub i16 0, %amt
|
||
|
|
%maskamt = and i16 %amt, 15
|
||
|
|
%masksub = and i16 %sub, 15
|
||
|
|
%shl = shl i16 %x, %maskamt
|
||
|
|
%shr = lshr i16 %x, %masksub
|
||
|
|
%or = or i16 %shl, %shr
|
||
|
|
ret i16 %or
|
||
|
|
}
|
||
|
|
|
||
|
|
define i16 @rotate_right_16(i16 %x, i32 %amount) {
|
||
|
|
; X86-LABEL: rotate_right_16:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: rorw %cl, %ax
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_right_16:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: movl %edi, %eax
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: rorw %cl, %ax
|
||
|
|
; X64-NEXT: # kill: def $ax killed $ax killed $eax
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%amt = trunc i32 %amount to i16
|
||
|
|
%sub = sub i16 0, %amt
|
||
|
|
%maskamt = and i16 %amt, 15
|
||
|
|
%masksub = and i16 %sub, 15
|
||
|
|
%shr = lshr i16 %x, %maskamt
|
||
|
|
%shl = shl i16 %x, %masksub
|
||
|
|
%or = or i16 %shr, %shl
|
||
|
|
ret i16 %or
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @rotate_left_m8(i8* %p, i32 %amount) {
|
||
|
|
; X86-LABEL: rotate_left_m8:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: rolb %cl, (%eax)
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_left_m8:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: rolb %cl, (%rdi)
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%x = load i8, i8* %p, align 1
|
||
|
|
%amt = trunc i32 %amount to i8
|
||
|
|
%sub = sub i8 0, %amt
|
||
|
|
%maskamt = and i8 %amt, 7
|
||
|
|
%masksub = and i8 %sub, 7
|
||
|
|
%shl = shl i8 %x, %maskamt
|
||
|
|
%shr = lshr i8 %x, %masksub
|
||
|
|
%or = or i8 %shl, %shr
|
||
|
|
store i8 %or, i8* %p, align 1
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @rotate_right_m8(i8* %p, i32 %amount) {
|
||
|
|
; X86-LABEL: rotate_right_m8:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: rorb %cl, (%eax)
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_right_m8:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: rorb %cl, (%rdi)
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%x = load i8, i8* %p, align 1
|
||
|
|
%amt = trunc i32 %amount to i8
|
||
|
|
%sub = sub i8 0, %amt
|
||
|
|
%maskamt = and i8 %amt, 7
|
||
|
|
%masksub = and i8 %sub, 7
|
||
|
|
%shl = shl i8 %x, %masksub
|
||
|
|
%shr = lshr i8 %x, %maskamt
|
||
|
|
%or = or i8 %shl, %shr
|
||
|
|
store i8 %or, i8* %p, align 1
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @rotate_left_m16(i16* %p, i32 %amount) {
|
||
|
|
; X86-LABEL: rotate_left_m16:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: rolw %cl, (%eax)
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_left_m16:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: rolw %cl, (%rdi)
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%x = load i16, i16* %p, align 1
|
||
|
|
%amt = trunc i32 %amount to i16
|
||
|
|
%sub = sub i16 0, %amt
|
||
|
|
%maskamt = and i16 %amt, 15
|
||
|
|
%masksub = and i16 %sub, 15
|
||
|
|
%shl = shl i16 %x, %maskamt
|
||
|
|
%shr = lshr i16 %x, %masksub
|
||
|
|
%or = or i16 %shl, %shr
|
||
|
|
store i16 %or, i16* %p, align 1
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @rotate_right_m16(i16* %p, i32 %amount) {
|
||
|
|
; X86-LABEL: rotate_right_m16:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: rorw %cl, (%eax)
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_right_m16:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: rorw %cl, (%rdi)
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%x = load i16, i16* %p, align 1
|
||
|
|
%amt = trunc i32 %amount to i16
|
||
|
|
%sub = sub i16 0, %amt
|
||
|
|
%maskamt = and i16 %amt, 15
|
||
|
|
%masksub = and i16 %sub, 15
|
||
|
|
%shl = shl i16 %x, %masksub
|
||
|
|
%shr = lshr i16 %x, %maskamt
|
||
|
|
%or = or i16 %shl, %shr
|
||
|
|
store i16 %or, i16* %p, align 1
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @rotate_demanded_bits(i32, i32) {
|
||
|
|
; X86-LABEL: rotate_demanded_bits:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: andb $30, %cl
|
||
|
|
; X86-NEXT: roll %cl, %eax
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_demanded_bits:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: movl %edi, %eax
|
||
|
|
; X64-NEXT: andb $30, %cl
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: roll %cl, %eax
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%3 = and i32 %1, 30
|
||
|
|
%4 = shl i32 %0, %3
|
||
|
|
%5 = sub nsw i32 0, %3
|
||
|
|
%6 = and i32 %5, 30
|
||
|
|
%7 = lshr i32 %0, %6
|
||
|
|
%8 = or i32 %7, %4
|
||
|
|
ret i32 %8
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @rotate_demanded_bits_2(i32, i32) {
|
||
|
|
; X86-LABEL: rotate_demanded_bits_2:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: andb $23, %cl
|
||
|
|
; X86-NEXT: roll %cl, %eax
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_demanded_bits_2:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: movl %esi, %ecx
|
||
|
|
; X64-NEXT: movl %edi, %eax
|
||
|
|
; X64-NEXT: andb $23, %cl
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: roll %cl, %eax
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%3 = and i32 %1, 23
|
||
|
|
%4 = shl i32 %0, %3
|
||
|
|
%5 = sub nsw i32 0, %3
|
||
|
|
%6 = and i32 %5, 31
|
||
|
|
%7 = lshr i32 %0, %6
|
||
|
|
%8 = or i32 %7, %4
|
||
|
|
ret i32 %8
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @rotate_demanded_bits_3(i32, i32) {
|
||
|
|
; X86-LABEL: rotate_demanded_bits_3:
|
||
|
|
; X86: # %bb.0:
|
||
|
|
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
|
||
|
|
; X86-NEXT: addb %cl, %cl
|
||
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
|
||
|
|
; X86-NEXT: roll %cl, %eax
|
||
|
|
; X86-NEXT: retl
|
||
|
|
;
|
||
|
|
; X64-LABEL: rotate_demanded_bits_3:
|
||
|
|
; X64: # %bb.0:
|
||
|
|
; X64-NEXT: # kill: def $esi killed $esi def $rsi
|
||
|
|
; X64-NEXT: movl %edi, %eax
|
||
|
|
; X64-NEXT: leal (%rsi,%rsi), %ecx
|
||
|
|
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
|
||
|
|
; X64-NEXT: roll %cl, %eax
|
||
|
|
; X64-NEXT: retq
|
||
|
|
%3 = shl i32 %1, 1
|
||
|
|
%4 = and i32 %3, 30
|
||
|
|
%5 = shl i32 %0, %4
|
||
|
|
%6 = sub i32 0, %3
|
||
|
|
%7 = and i32 %6, 30
|
||
|
|
%8 = lshr i32 %0, %7
|
||
|
|
%9 = or i32 %5, %8
|
||
|
|
ret i32 %9
|
||
|
|
}
|