; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=i386-unknown-unknown -disable-cgp-branch-opts | FileCheck %s --check-prefix=X32 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -disable-cgp-branch-opts | FileCheck %s --check-prefix=X64 ; rdar://7573216 ; PR6146 define i32 @t1(i32 %x) nounwind readnone ssp { ; X32-LABEL: t1: ; X32: # %bb.0: ; X32-NEXT: cmpl $1, {{[0-9]+}}(%esp) ; X32-NEXT: sbbl %eax, %eax ; X32-NEXT: retl ; ; X64-LABEL: t1: ; X64: # %bb.0: ; X64-NEXT: cmpl $1, %edi ; X64-NEXT: sbbl %eax, %eax ; X64-NEXT: retq %t0 = icmp eq i32 %x, 0 %if = select i1 %t0, i32 -1, i32 0 ret i32 %if } define i32 @t2(i32 %x) nounwind readnone ssp { ; X32-LABEL: t2: ; X32: # %bb.0: ; X32-NEXT: cmpl $1, {{[0-9]+}}(%esp) ; X32-NEXT: sbbl %eax, %eax ; X32-NEXT: retl ; ; X64-LABEL: t2: ; X64: # %bb.0: ; X64-NEXT: cmpl $1, %edi ; X64-NEXT: sbbl %eax, %eax ; X64-NEXT: retq %t0 = icmp eq i32 %x, 0 %if = sext i1 %t0 to i32 ret i32 %if } define i32 @t3(i32 %x, i64 %y) nounwind readonly { ; X32-LABEL: t3: ; X32: # %bb.0: # %entry ; X32-NEXT: movl {{[0-9]+}}(%esp), %eax ; X32-NEXT: cmpl $1, {{[0-9]+}}(%esp) ; X32-NEXT: sbbl %ecx, %ecx ; X32-NEXT: cmpl %ecx, {{[0-9]+}}(%esp) ; X32-NEXT: sbbl %ecx, %eax ; X32-NEXT: xorl %eax, %eax ; X32-NEXT: retl ; ; X64-LABEL: t3: ; X64: # %bb.0: # %entry ; X64-NEXT: xorl %eax, %eax ; X64-NEXT: testl %edi, %edi ; X64-NEXT: sete %al ; X64-NEXT: negq %rax ; X64-NEXT: cmpq %rax, %rsi ; X64-NEXT: xorl %eax, %eax ; X64-NEXT: retq entry: %not.tobool = icmp eq i32 %x, 0 %cond = sext i1 %not.tobool to i32 %conv = sext i1 %not.tobool to i64 %add13 = add i64 0, %conv %cmp = icmp ult i64 %y, %add13 br i1 %cmp, label %if.then, label %if.end if.then: br label %if.end if.end: %xor27 = xor i32 undef, %cond ret i32 0 } define i32 @t4(i64 %x) nounwind readnone ssp { ; X32-LABEL: t4: ; X32: # %bb.0: ; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx ; X32-NEXT: xorl %eax, %eax ; X32-NEXT: orl {{[0-9]+}}(%esp), %ecx ; X32-NEXT: sete %al ; X32-NEXT: negl %eax ; X32-NEXT: retl ; ; X64-LABEL: t4: ; X64: # %bb.0: ; X64-NEXT: cmpq $1, %rdi ; X64-NEXT: sbbl %eax, %eax ; X64-NEXT: retq %t0 = icmp eq i64 %x, 0 %t1 = sext i1 %t0 to i32 ret i32 %t1 } define i64 @t5(i32 %x) nounwind readnone ssp { ; X32-LABEL: t5: ; X32: # %bb.0: ; X32-NEXT: cmpl $1, {{[0-9]+}}(%esp) ; X32-NEXT: sbbl %eax, %eax ; X32-NEXT: movl %eax, %edx ; X32-NEXT: retl ; ; X64-LABEL: t5: ; X64: # %bb.0: ; X64-NEXT: cmpl $1, %edi ; X64-NEXT: sbbq %rax, %rax ; X64-NEXT: retq %t0 = icmp eq i32 %x, 0 %t1 = sext i1 %t0 to i64 ret i64 %t1 } ; sext (xor Bool, -1) --> sub (zext Bool), 1 define i32 @select_0_or_1s(i1 %cond) { ; X32-LABEL: select_0_or_1s: ; X32: # %bb.0: ; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax ; X32-NEXT: andl $1, %eax ; X32-NEXT: decl %eax ; X32-NEXT: retl ; ; X64-LABEL: select_0_or_1s: ; X64: # %bb.0: ; X64-NEXT: # kill: def $edi killed $edi def $rdi ; X64-NEXT: andl $1, %edi ; X64-NEXT: leal -1(%rdi), %eax ; X64-NEXT: retq %not = xor i1 %cond, 1 %sext = sext i1 %not to i32 ret i32 %sext } ; sext (xor Bool, -1) --> sub (zext Bool), 1 define i32 @select_0_or_1s_zeroext(i1 zeroext %cond) { ; X32-LABEL: select_0_or_1s_zeroext: ; X32: # %bb.0: ; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax ; X32-NEXT: decl %eax ; X32-NEXT: retl ; ; X64-LABEL: select_0_or_1s_zeroext: ; X64: # %bb.0: ; X64-NEXT: # kill: def $edi killed $edi def $rdi ; X64-NEXT: leal -1(%rdi), %eax ; X64-NEXT: retq %not = xor i1 %cond, 1 %sext = sext i1 %not to i32 ret i32 %sext } ; sext (xor Bool, -1) --> sub (zext Bool), 1 define i32 @select_0_or_1s_signext(i1 signext %cond) { ; X32-LABEL: select_0_or_1s_signext: ; X32: # %bb.0: ; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax ; X32-NEXT: andl $1, %eax ; X32-NEXT: decl %eax ; X32-NEXT: retl ; ; X64-LABEL: select_0_or_1s_signext: ; X64: # %bb.0: ; X64-NEXT: movl %edi, %eax ; X64-NEXT: notl %eax ; X64-NEXT: retq %not = xor i1 %cond, 1 %sext = sext i1 %not to i32 ret i32 %sext } define i32 @zext_decrement_sext(i8 %x) { ; X32-LABEL: zext_decrement_sext: ; X32: # %bb.0: ; X32-NEXT: movzbl {{[0-9]+}}(%esp), %eax ; X32-NEXT: decl %eax ; X32-NEXT: retl ; ; X64-LABEL: zext_decrement_sext: ; X64: # %bb.0: ; X64-NEXT: movzbl %dil, %eax ; X64-NEXT: decl %eax ; X64-NEXT: retq %z = zext i8 %x to i16 %dec = add i16 %z, -1 %r = sext i16 %dec to i32 ret i32 %r }