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Handle CopyToReg nodes with flag operands correctly 

llvm-svn: 23144
This commit is contained in:
Chris Lattner 2005-08-30 01:57:23 +00:00
parent 7a59b1cf90
commit 04cb82278a
1 changed files with 6 additions and 1 deletions
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7
llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
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@ -205,8 +205,13 @@ unsigned SimpleSched::Emit(SDOperand Op) {
Emit(Op.getOperand(i));
break;
case ISD::CopyToReg: {
Emit(Op.getOperand(0)); // Emit the chain.
SDOperand ChainOp;
if (Op.getNumOperands() == 4)
ChainOp = Op.getOperand(3);
if (Op.getOperand(0).Val != ChainOp.Val)
Emit(Op.getOperand(0)); // Emit the chain.
unsigned Val = Emit(Op.getOperand(2));
if (ChainOp.Val) Emit(ChainOp);
MRI.copyRegToReg(*BB, BB->end(),
cast<RegisterSDNode>(Op.getOperand(1))->getReg(), Val,
RegMap->getRegClass(Val));