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| author | Jakub Staszak <kubastaszak@gmail.com> | 2012-10-30 00:01:57 +0000 |
|---|---|---|
| committer | Jakub Staszak <kubastaszak@gmail.com> | 2012-10-30 00:01:57 +0000 |
| commit | a24262a0f5c54f59e3362dd8a050589c508c9923 (patch) | |
| tree | 9fa31b13a1a5c1a8e5cab49d512410985b2ad906 /lib/Target/X86/X86ISelLowering.cpp | |
| parent | 445ba85b8d7bc8fb4689ca22131cadc80a034705 (diff) | |
| download | llvm-a24262a0f5c54f59e3362dd8a050589c508c9923.tar.gz llvm-a24262a0f5c54f59e3362dd8a050589c508c9923.tar.bz2 llvm-a24262a0f5c54f59e3362dd8a050589c508c9923.tar.xz | |
Re-commit r166971. I reverted it to quickly, when buildbots didn't have a chance
to test it with chapni's fix (-mattr=+avx).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166985 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 29ba59c7a7..4b6ab74582 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -6438,17 +6438,17 @@ LowerVECTOR_SHUFFLE_128v4(ShuffleVectorSDNode *SVOp, SelectionDAG &DAG) { } static bool MayFoldVectorLoad(SDValue V) { - if (V.hasOneUse() && V.getOpcode() == ISD::BITCAST) + while (V.hasOneUse() && V.getOpcode() == ISD::BITCAST) V = V.getOperand(0); + if (V.hasOneUse() && V.getOpcode() == ISD::SCALAR_TO_VECTOR) V = V.getOperand(0); if (V.hasOneUse() && V.getOpcode() == ISD::BUILD_VECTOR && V.getNumOperands() == 2 && V.getOperand(1).getOpcode() == ISD::UNDEF) // BUILD_VECTOR (load), undef V = V.getOperand(0); - if (MayFoldLoad(V)) - return true; - return false; + + return MayFoldLoad(V); } // FIXME: the version above should always be used. Since there's |