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| author | Chris Lattner <sabre@nondot.org> | 2007-05-17 03:29:42 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-05-17 03:29:42 +0000 |
| commit | da66472ea65d1624ce8e401598dfffa77aafc6df (patch) | |
| tree | 9a6f9df411c4288885f05d31b9ce727e2e611386 | |
| parent | 944a3f4d01bad3a1d89915f3f21be2a681d4c5cd (diff) | |
Fix PR1427 and test/CodeGen/X86/mmx-shuffle.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37141 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 6de6b21c78..7a12dc6ca5 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -1614,6 +1614,13 @@ bool X86::isPSHUFLWMask(SDNode *N) { static bool isSHUFPMask(const SDOperand *Elems, unsigned NumElems) { if (NumElems != 2 && NumElems != 4) return false; + // Ensure this is not an mmx shuffle. + if (NumElems == 4 && Elems[0].getValueType() == MVT::i16) + return false; + if (NumElems == 2 && Elems[0].getValueType() == MVT::i32) + return false; + + unsigned Half = NumElems / 2; for (unsigned i = 0; i < Half; ++i) if (!isUndefOrInRange(Elems[i], 0, NumElems)) @@ -2712,7 +2719,9 @@ X86TargetLowering::LowerVECTOR_SHUFFLE(SDOperand Op, SelectionDAG &DAG) { } } - if (NumElems == 4) { + if (NumElems == 4 && + // Don't do this for MMX. + MVT::getSizeInBits(VT) != 64) { MVT::ValueType MaskVT = PermMask.getValueType(); MVT::ValueType MaskEVT = MVT::getVectorBaseType(MaskVT); SmallVector<std::pair<int, int>, 8> Locs; |