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| author | Chad Rosier <mcrosier@apple.com> | 2012-03-09 02:00:48 +0000 |
|---|---|---|
| committer | Chad Rosier <mcrosier@apple.com> | 2012-03-09 02:00:48 +0000 |
| commit | abd6674166d99a8da98269051fbd869d9d8c3ba1 (patch) | |
| tree | 4b68f0ac12b9221bc2931e98600677d9a545ca4a /test/CodeGen/X86/avx-shuffle.ll | |
| parent | d04ec0c855176ebddd459c044bdd24f49938fae4 (diff) | |
| download | llvm-abd6674166d99a8da98269051fbd869d9d8c3ba1.tar.gz llvm-abd6674166d99a8da98269051fbd869d9d8c3ba1.tar.bz2 llvm-abd6674166d99a8da98269051fbd869d9d8c3ba1.tar.xz | |
Fix a regression from r147481.
Original commit message from r147481:
DAGCombine for transforming 128->256 casts into a vmovaps, rather
then a vxorps + vinsertf128 pair if the original vector came from a load.
Fix:
Unaligned loads need to generate a vmovups.
rdar://10974078
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152366 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/avx-shuffle.ll')
| -rw-r--r-- | test/CodeGen/X86/avx-shuffle.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/CodeGen/X86/avx-shuffle.ll b/test/CodeGen/X86/avx-shuffle.ll index 947d79f9e4..54f01e966d 100644 --- a/test/CodeGen/X86/avx-shuffle.ll +++ b/test/CodeGen/X86/avx-shuffle.ll @@ -135,3 +135,15 @@ define <4 x i32> @test15(<2 x i32>%x) nounwind readnone { ret <4 x i32>%x1 } +; rdar://10974078 +define <8 x float> @test16(float* nocapture %f) nounwind uwtable readonly ssp { +entry: + %0 = bitcast float* %f to <4 x float>* + %1 = load <4 x float>* %0, align 8 +; CHECK: test16 +; CHECK: vmovups +; CHECK-NOT: vxorps +; CHECK-NOT: vinsertf128 + %shuffle.i = shufflevector <4 x float> %1, <4 x float> <float 0.000000e+00, float undef, float undef, float undef>, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 4, i32 4, i32 4> + ret <8 x float> %shuffle.i +} |