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

[Chris Lattner]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

LegalizeDAG.cpp updated: 1.365 -> 1.366
---
Log message:

Add support for promoting stores from one legal type to another, allowing us
to write one pattern for vector stores instead of 4.


---
Diffs of the changes:  (+8 -0)

 LegalizeDAG.cpp |    8 ++++++++
 1 files changed, 8 insertions(+)


Index: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.365 llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.366
--- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.365	Fri Apr 14 01:08:35 2006
+++ llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp	Sat Apr 15 20:36:45 2006
@@ -1544,6 +1544,13 @@
         Tmp1 = TLI.LowerOperation(Result, DAG);
         if (Tmp1.Val) Result = Tmp1;
         break;
+      case TargetLowering::Promote:
+        assert(MVT::isVector(VT) && "Unknown legal promote case!");
+        Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 
+                           TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3);
+        Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 
+                                        Node->getOperand(3));
+        break;
       }
       break;
     }
@@ -1576,6 +1583,7 @@
           Tmp3 = PackVectorOp(Node->getOperand(1), TVT);
           Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 
                                           Node->getOperand(3));
+          Result = LegalizeOp(Result);
           break;
         } else if (NumElems == 1) {
           // Turn this into a normal store of the scalar type.