1; RUN: llc -mtriple x86_64-apple-darwin -O0 -o - < %s | FileCheck %s
2; Make sure we only use the less significant bit of the value that feeds the
3; select. Otherwise, we may account for a non-zero value whereas the
4; lsb is zero.
5; <rdar://problem/15651765>
6
7; CHECK-LABEL: fastisel_select:
8; CHECK: subb {{%[a-z0-9]+}}, [[RES:%[a-z0-9]+]]
9; CHECK: testb $1, [[RES]]
10; CHECK: cmovnel %edi, %esi
11define i32 @fastisel_select(i1 %exchSub2211_, i1 %trunc_8766) {
12  %shuffleInternal15257_8932 = sub i1 %exchSub2211_, %trunc_8766
13  %counter_diff1345 = select i1 %shuffleInternal15257_8932, i32 1204476887, i32 0
14  ret i32 %counter_diff1345
15}
16
17