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Diffstat (limited to 'test/CodeGen/X86/fast-isel-select.ll')
| -rw-r--r-- | test/CodeGen/X86/fast-isel-select.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fast-isel-select.ll b/test/CodeGen/X86/fast-isel-select.ll new file mode 100644 index 0000000..53158bc --- /dev/null +++ b/test/CodeGen/X86/fast-isel-select.ll @@ -0,0 +1,16 @@ +; RUN: llc -mtriple x86_64-apple-darwin -O0 -o - < %s | 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> + +; CHECK-LABEL: fastisel_select: +; CHECK: subb {{%[a-z0-9]+}}, [[RES:%[a-z0-9]+]] +; CHECK: testb $1, [[RES]] +; CHECK: cmovel +define i32 @fastisel_select(i1 %exchSub2211_, i1 %trunc_8766) { + %shuffleInternal15257_8932 = sub i1 %exchSub2211_, %trunc_8766 + %counter_diff1345 = select i1 %shuffleInternal15257_8932, i32 1204476887, i32 0 + ret i32 %counter_diff1345 +} + |