[llvm-commits] CVS: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

[Evan Cheng]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

LegalizeDAG.cpp updated: 1.337 -> 1.338
---
Log message:

Only to vector shuffle for {x,x,y,y} cases when SCALAR_TO_VECTOR is free.


---
Diffs of the changes:  (+2 -1)

 LegalizeDAG.cpp |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)


Index: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.337 llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.338
--- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.337	Fri Mar 24 01:29:17 2006
+++ llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp	Fri Mar 24 12:45:20 2006
@@ -3209,7 +3209,8 @@
     SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, MaskVec);
 
     // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it.
-    if (TLI.isShuffleLegal(Node->getValueType(0), ShuffleMask)) {
+    if (TLI.isShuffleLegal(Node->getValueType(0), ShuffleMask) &&
+        TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0))) {
       std::vector<SDOperand> Ops;
       for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(),
             E = Values.end(); I != E; ++I) {