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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-apple-darwin -O0 | FileCheck %s
; Make sure we only use the less significant bit of the value that feeds the
; select. Otherwise, we may account for a non-zero value whereas the
; lsb is zero.
; <rdar://problem/15651765>
define i32 @fastisel_select(i1 %exchSub2211_, i1 %trunc_8766) {
; CHECK-LABEL: fastisel_select:
; CHECK: ## %bb.0:
; CHECK-NEXT: movb %sil, %al
; CHECK-NEXT: movb %dil, %cl
; CHECK-NEXT: xorl %esi, %esi
; CHECK-NEXT: subb %al, %cl
; CHECK-NEXT: testb $1, %cl
; CHECK-NEXT: movl $1204476887, %edi ## imm = 0x47CADBD7
; CHECK-NEXT: cmovnel %edi, %esi
; CHECK-NEXT: movl %esi, %eax
; CHECK-NEXT: retq
%shuffleInternal15257_8932 = sub i1 %exchSub2211_, %trunc_8766
%counter_diff1345 = select i1 %shuffleInternal15257_8932, i32 1204476887, i32 0
ret i32 %counter_diff1345
}
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