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| author | Chris Lattner <sabre@nondot.org> | 2011-01-05 22:28:46 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2011-01-05 22:28:46 +0000 |
| commit | c010e61ae1f5798dcd14b07eeb4438bcb2d193ca (patch) | |
| tree | e362c522765d370ce7ab4d4e920c11d4e7040570 | |
| parent | c46ec649b109ee7c44b0c8b9df6e913bdb129fc1 (diff) | |
| download | external_llvm-c010e61ae1f5798dcd14b07eeb4438bcb2d193ca.zip external_llvm-c010e61ae1f5798dcd14b07eeb4438bcb2d193ca.tar.gz external_llvm-c010e61ae1f5798dcd14b07eeb4438bcb2d193ca.tar.bz2 | |
fix PR8900, a shuffle miscompilation. Patch by Nadav Rotem!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122921 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86InstrSSE.td | 8 | ||||
| -rw-r--r-- | test/CodeGen/X86/sse2.ll | 13 |
2 files changed, 17 insertions, 4 deletions
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td index ad80860..9c20e84 100644 --- a/lib/Target/X86/X86InstrSSE.td +++ b/lib/Target/X86/X86InstrSSE.td @@ -5597,9 +5597,9 @@ def : Pat<(v4f32 (X86Unpckhps VR128:$src1, VR128:$src2)), // Shuffle with UNPCKLPD def : Pat<(v2f64 (X86Unpcklpd VR128:$src1, (memopv2f64 addr:$src2))), - (VUNPCKLPSrm VR128:$src1, addr:$src2)>, Requires<[HasAVX]>; + (VUNPCKLPDrm VR128:$src1, addr:$src2)>, Requires<[HasAVX]>; def : Pat<(v2f64 (X86Unpcklpd VR128:$src1, (memopv2f64 addr:$src2))), - (UNPCKLPSrm VR128:$src1, addr:$src2)>; + (UNPCKLPDrm VR128:$src1, addr:$src2)>; def : Pat<(v2f64 (X86Unpcklpd VR128:$src1, VR128:$src2)), (VUNPCKLPDrr VR128:$src1, VR128:$src2)>, Requires<[HasAVX]>; @@ -5608,9 +5608,9 @@ def : Pat<(v2f64 (X86Unpcklpd VR128:$src1, VR128:$src2)), // Shuffle with UNPCKHPD def : Pat<(v2f64 (X86Unpckhpd VR128:$src1, (memopv2f64 addr:$src2))), - (VUNPCKLPSrm VR128:$src1, addr:$src2)>, Requires<[HasAVX]>; + (VUNPCKHPDrm VR128:$src1, addr:$src2)>, Requires<[HasAVX]>; def : Pat<(v2f64 (X86Unpckhpd VR128:$src1, (memopv2f64 addr:$src2))), - (UNPCKLPSrm VR128:$src1, addr:$src2)>; + (UNPCKHPDrm VR128:$src1, addr:$src2)>; def : Pat<(v2f64 (X86Unpckhpd VR128:$src1, VR128:$src2)), (VUNPCKHPDrr VR128:$src1, VR128:$src2)>, Requires<[HasAVX]>; diff --git a/test/CodeGen/X86/sse2.ll b/test/CodeGen/X86/sse2.ll index 6fc0190..a9d718d 100644 --- a/test/CodeGen/X86/sse2.ll +++ b/test/CodeGen/X86/sse2.ll @@ -192,3 +192,16 @@ entry: ; CHECK: test15: ; CHECK: movhlps %xmm1, %xmm0 } + +; PR8900 +; CHECK: test16: +; CHECK: unpcklpd +; CHECK: ret + +define <2 x double> @test16(<4 x double> * nocapture %srcA, <2 x double>* nocapture %dst) { + %i5 = getelementptr inbounds <4 x double>* %srcA, i32 3 + %i6 = load <4 x double>* %i5, align 32 + %i7 = shufflevector <4 x double> %i6, <4 x double> undef, <2 x i32> <i32 0, i32 2> + ret <2 x double> %i7 +} + |