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CopyFromReg produces two values. Make sure that we remember that both are

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legalized, and actually return the correct result when we legalize the chain first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19866 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-28 06:27:38 +00:00
parent 1fe848ed2e
commit 13c184de29
1 changed files with 8 additions and 1 deletions
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9
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -206,7 +206,14 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
if (Tmp1 != Node->getOperand(0))
Result = DAG.getCopyFromReg(cast<RegSDNode>(Node)->getReg(),
Node->getValueType(0), Tmp1);
break;
else
Result = Op.getValue(0);
// Since CopyFromReg produces two values, make sure to remember that we
// legalized both of them.
AddLegalizedOperand(Op.getValue(0), Result);
AddLegalizedOperand(Op.getValue(1), Result.getValue(1));
return Result.getValue(Op.ResNo);
case ISD::ImplicitDef:
Tmp1 = LegalizeOp(Node->getOperand(0));
if (Tmp1 != Node->getOperand(0))