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

[Evan Cheng]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

LegalizeDAG.cpp updated: 1.420 -> 1.421
---
Log message:

Avoid inifinite looping if READCYCLECOUNTER isn't custom lowered.

---
Diffs of the changes:  (+8 -3)

 LegalizeDAG.cpp |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)


Index: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.420 
llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.421
--- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.420 Wed Nov 29 02:26:18 2006
+++ llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp       Wed Nov 29 13:13:47 2006
@@ -1850,16 +1850,21 @@
     switch (TLI.getOperationAction(ISD::READCYCLECOUNTER,
                                    Node->getValueType(0))) {
     default: assert(0 && "This action is not supported yet!");
-    case TargetLowering::Legal: break;
+    case TargetLowering::Legal:
+      Tmp1 = Result.getValue(0);
+      Tmp2 = Result.getValue(1);
+      break;
     case TargetLowering::Custom:
       Result = TLI.LowerOperation(Result, DAG);
+      Tmp1 = LegalizeOp(Result.getValue(0));
+      Tmp2 = LegalizeOp(Result.getValue(1));
       break;
     }
 
     // Since rdcc produce two values, make sure to remember that we legalized
     // both of them.
-    AddLegalizedOperand(SDOperand(Node, 0), LegalizeOp(Result.getValue(0)));
-    AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Result.getValue(1)));
+    AddLegalizedOperand(SDOperand(Node, 0), Tmp1);
+    AddLegalizedOperand(SDOperand(Node, 1), Tmp2);
     return Result;
 
   case ISD::SELECT:



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