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Fix a latent bug in the call sequence handling stuff. Some targets (e.g. x86)

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create these nodes with flag results.  Remember that we legalized them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26156 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2006-02-14 00:55:02 +00:00
parent 2082ad9b41
commit 4b653a0405
1 changed files with 11 additions and 4 deletions
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13
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@@ -729,7 +729,9 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
} }
// Remember that the CALLSEQ_START is legalized. // Remember that the CALLSEQ_START is legalized.
AddLegalizedOperand(Op, Result); AddLegalizedOperand(Op.getValue(0), Result);
if (Node->getNumValues() == 2) // If this has a flag result, remember it.
AddLegalizedOperand(Op.getValue(1), Result.getValue(1));
// Now that the callseq_start and all of the non-call nodes above this call // Now that the callseq_start and all of the non-call nodes above this call
// sequence have been legalized, legalize the call itself. During this // sequence have been legalized, legalize the call itself. During this
@@ -778,10 +780,15 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
Result = DAG.UpdateNodeOperands(Result, Ops); Result = DAG.UpdateNodeOperands(Result, Ops);
} }
} }
assert(IsLegalizingCall && "imbalance between START/END?"); assert(IsLegalizingCall && "Call sequence imbalance between start/end?");
// This finishes up call legalization. // This finishes up call legalization.
IsLegalizingCall = false; IsLegalizingCall = false;
break;
// If the CALLSEQ_END node has a flag, remember that we legalized it.
AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0));
if (Node->getNumValues() == 2)
AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1));
return Result.getValue(Op.ResNo);
case ISD::DYNAMIC_STACKALLOC: { case ISD::DYNAMIC_STACKALLOC: {
Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain.
Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size.