1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -O0 | FileCheck %s 3 4 ; Make sure we only use the less significant bit of the value that feeds the 5 ; select. Otherwise, we may account for a non-zero value whereas the 6 ; lsb is zero. 7 ; <rdar://problem/15651765> 8 9 define i32 @fastisel_select(i1 %exchSub2211_, i1 %trunc_8766) { 10 ; CHECK-LABEL: fastisel_select: 11 ; CHECK: ## %bb.0: 12 ; CHECK-NEXT: movb %sil, %al 13 ; CHECK-NEXT: movb %dil, %cl 14 ; CHECK-NEXT: xorl %esi, %esi 15 ; CHECK-NEXT: subb %al, %cl 16 ; CHECK-NEXT: testb $1, %cl 17 ; CHECK-NEXT: movl $1204476887, %edi ## imm = 0x47CADBD7 18 ; CHECK-NEXT: cmovnel %edi, %esi 19 ; CHECK-NEXT: movl %esi, %eax 20 ; CHECK-NEXT: retq 21 %shuffleInternal15257_8932 = sub i1 %exchSub2211_, %trunc_8766 22 %counter_diff1345 = select i1 %shuffleInternal15257_8932, i32 1204476887, i32 0 23 ret i32 %counter_diff1345 24 } 25 26
