| Quentin Colombet | 90a646e | 2013-12-19 18:32:04 +0000 | [diff] [blame] | 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 | |
| Juergen Ributzka | 6ef06f9 | 2014-06-23 21:55:36 +0000 | [diff] [blame] | 7 | ; CHECK-LABEL: fastisel_select: |
| Quentin Colombet | 90a646e | 2013-12-19 18:32:04 +0000 | [diff] [blame] | 8 | ; CHECK: subb {{%[a-z0-9]+}}, [[RES:%[a-z0-9]+]] |
| 9 | ; CHECK: testb $1, [[RES]] |
| Juergen Ributzka | 6ef06f9 | 2014-06-23 21:55:36 +0000 | [diff] [blame] | 10 | ; CHECK: cmovnel %edi, %esi |
| Quentin Colombet | 90a646e | 2013-12-19 18:32:04 +0000 | [diff] [blame] | 11 | define 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 | |