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| author | Nick Lewycky <nicholas@mxc.ca> | 2013-05-30 04:33:38 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2013-05-30 04:33:38 +0000 |
| commit | e97b102e2b597751c9e9edce74d3d69bba317dcd (patch) | |
| tree | f46b279af3ba53b2d80dcb9a0ef0dc2ecd76f961 /test/Transforms/InstCombine | |
| parent | 7486d92a6c949a193bb75c0ffa0170eeb2fabb80 (diff) | |
| download | llvm-e97b102e2b597751c9e9edce74d3d69bba317dcd.tar.gz llvm-e97b102e2b597751c9e9edce74d3d69bba317dcd.tar.bz2 llvm-e97b102e2b597751c9e9edce74d3d69bba317dcd.tar.xz | |
Swizzle vector inputs if it helps us eliminate shuffles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182909 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine')
| -rw-r--r-- | test/Transforms/InstCombine/vec_shuffle.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/vec_shuffle.ll b/test/Transforms/InstCombine/vec_shuffle.ll index 8f78c2e6bd..9dc29e4c6c 100644 --- a/test/Transforms/InstCombine/vec_shuffle.ll +++ b/test/Transforms/InstCombine/vec_shuffle.ll @@ -153,3 +153,15 @@ define <8 x i8> @test12a(<8 x i8> %tmp6, <8 x i8> %tmp2) nounwind { ret <8 x i8> %tmp3 } +define <2 x i8> @test13(i8 %x1, i8 %x2) { +; CHECK: @test13 +; CHECK-NEXT: insertelement {{.*}} undef, i8 %x1, i32 1 +; CHECK-NEXT: insertelement {{.*}} i8 %x2, i32 0 +; CHECK-NEXT: add {{.*}} <i8 7, i8 5> +; CHECK-NEXT: ret + %A = insertelement <2 x i8> undef, i8 %x1, i32 0 + %B = insertelement <2 x i8> %A, i8 %x2, i32 1 + %C = add <2 x i8> %B, <i8 5, i8 7> + %D = shufflevector <2 x i8> %C, <2 x i8> undef, <2 x i32> <i32 1, i32 0> + ret <2 x i8> %D +} |