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| author | David Majnemer <david.majnemer@gmail.com> | 2014-12-18 23:54:43 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2014-12-18 23:54:43 +0000 |
| commit | 824e011ad7b400ef79920ae9f84e5f55375720f2 (patch) | |
| tree | c0f10308543e35c8f479ab06df32bfe20d60637c /llvm/test/Transforms | |
| parent | 174476ed963beac6131c0b9c65727452689f6a0b (diff) | |
| download | bcm5719-llvm-824e011ad7b400ef79920ae9f84e5f55375720f2.tar.gz bcm5719-llvm-824e011ad7b400ef79920ae9f84e5f55375720f2.zip | |
ConstantFold: Shifting undef by zero results in undef
llvm-svn: 224553
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/InstSimplify/undef.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstSimplify/undef.ll b/llvm/test/Transforms/InstSimplify/undef.ll index bf643171cc1..e8b49b6397d 100644 --- a/llvm/test/Transforms/InstSimplify/undef.ll +++ b/llvm/test/Transforms/InstSimplify/undef.ll @@ -244,3 +244,24 @@ define i32 @test31(i32 %a) { %b = shl i32 undef, %a ret i32 %b } + +; CHECK-LABEL: @test32 +; CHECK: ret i32 undef +define i32 @test32(i32 %a) { + %b = shl i32 undef, 0 + ret i32 %b +} + +; CHECK-LABEL: @test33 +; CHECK: ret i32 undef +define i32 @test33(i32 %a) { + %b = ashr i32 undef, 0 + ret i32 %b +} + +; CHECK-LABEL: @test34 +; CHECK: ret i32 undef +define i32 @test34(i32 %a) { + %b = lshr i32 undef, 0 + ret i32 %b +} |
