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| author | Chandler Carruth <chandlerc@gmail.com> | 2014-06-28 05:46:28 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2014-06-28 05:46:28 +0000 |
| commit | 3e5215bf73401752282425e412fa16a6a6b2c7ae (patch) | |
| tree | bc6f5f6588a1d445b2eef7d77a908a1dfe81435f /test | |
| parent | dc3a2fc6195154a10f5d47fbe3f4e6d3441eaffb (diff) | |
| download | llvm-3e5215bf73401752282425e412fa16a6a6b2c7ae.tar.gz llvm-3e5215bf73401752282425e412fa16a6a6b2c7ae.tar.bz2 llvm-3e5215bf73401752282425e412fa16a6a6b2c7ae.tar.xz | |
[x86] Fix a bug in the v8i16 shuffling exposed by the new splat-like
lowering for v16i8.
ASan and some bots caught this bug with existing test cases. Fixing it
even fixed a miscompile with one of the test cases. I'm still a bit
suspicious of this test case as I've not taken a proper amount of time
to think about it, but the fix here is strict goodness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211976 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/vector-shuffle-128-v16.ll | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/test/CodeGen/X86/vector-shuffle-128-v16.ll b/test/CodeGen/X86/vector-shuffle-128-v16.ll index f3a0931f73..f392a6221c 100644 --- a/test/CodeGen/X86/vector-shuffle-128-v16.ll +++ b/test/CodeGen/X86/vector-shuffle-128-v16.ll @@ -63,14 +63,15 @@ define <16 x i8> @shuffle_v16i8_00_00_00_00_04_04_04_04_08_08_08_08_12_12_12_12( ; CHECK-SSE2-NEXT: pxor %xmm1, %xmm1 ; CHECK-SSE2-NEXT: movdqa %xmm0, %xmm2 ; CHECK-SSE2-NEXT: punpcklbw %xmm1, %xmm2 -; CHECK-SSE2-NEXT: pshufd {{.*}} # xmm2 = xmm2[2,1,2,3] +; CHECK-SSE2-NEXT: pshufd {{.*}} # xmm2 = xmm2[0,2,2,3] +; CHECK-SSE2-NEXT: pshuflw {{.*}} # xmm2 = xmm2[0,2,2,3,4,5,6,7] ; CHECK-SSE2-NEXT: punpckhbw %xmm1, %xmm0 ; CHECK-SSE2-NEXT: pshufd {{.*}} # xmm0 = xmm0[0,2,2,3] ; CHECK-SSE2-NEXT: pshuflw {{.*}} # xmm0 = xmm0[0,2,2,3,4,5,6,7] ; CHECK-SSE2-NEXT: punpcklwd %xmm2, %xmm0 -; CHECK-SSE2-NEXT: pshufd {{.*}} # xmm0 = xmm0[0,1,0,3] +; CHECK-SSE2-NEXT: pshufd {{.*}} # xmm0 = xmm0[0,1,2,1] ; CHECK-SSE2-NEXT: pshuflw {{.*}} # xmm0 = xmm0[1,0,2,3,4,5,6,7] -; CHECK-SSE2-NEXT: pshufhw {{.*}} # xmm0 = xmm0[0,1,2,3,5,5,6,7] +; CHECK-SSE2-NEXT: pshufhw {{.*}} # xmm0 = xmm0[0,1,2,3,7,5,6,7] ; CHECK-SSE2-NEXT: packuswb %xmm0, %xmm0 ; CHECK-SSE2-NEXT: punpcklbw %xmm0, %xmm0 ; CHECK-SSE2-NEXT: pshufd {{.*}} # xmm0 = xmm0[0,2,0,1] |