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Support for legalizing MEMBARRIER.

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llvm-svn: 47667
This commit is contained in:
Duncan Sands 2008-02-27 08:53:44 +00:00
parent 2cae66e28b
commit f8ac836240
3 changed files with 19 additions and 2 deletions
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7
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
View File

@ -1140,8 +1140,11 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
case TargetLowering::Legal: {
SDOperand Ops[6];
Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain.
for (int x = 1; x < 6; ++x)
Ops[x] = PromoteOp(Node->getOperand(x));
for (int x = 1; x < 6; ++x) {
Ops[x] = Node->getOperand(x);
if (!isTypeLegal(Ops[x].getValueType()))
Ops[x] = PromoteOp(Ops[x]);
}
Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6);
break;
}

1
lib/CodeGen/SelectionDAG/LegalizeTypes.h
View File

@ -190,6 +190,7 @@ private:
SDOperand PromoteOperand_FP_EXTEND(SDNode *N);
SDOperand PromoteOperand_FP_ROUND(SDNode *N);
SDOperand PromoteOperand_INT_TO_FP(SDNode *N);
SDOperand PromoteOperand_MEMBARRIER(SDNode *N);
SDOperand PromoteOperand_RET(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_SETCC(SDNode *N, unsigned OpNo);

13
lib/CodeGen/SelectionDAG/LegalizeTypesPromote.cpp
View File

@ -359,6 +359,8 @@ bool DAGTypeLegalizer::PromoteOperand(SDNode *N, unsigned OpNo) {
case ISD::BUILD_VECTOR: Res = PromoteOperand_BUILD_VECTOR(N); break;
case ISD::RET: Res = PromoteOperand_RET(N, OpNo); break;
case ISD::MEMBARRIER: Res = PromoteOperand_MEMBARRIER(N); break;
}
// If the result is null, the sub-method took care of registering results etc.
@ -612,3 +614,14 @@ SDOperand DAGTypeLegalizer::PromoteOperand_RET(SDNode *N, unsigned OpNo) {
return DAG.UpdateNodeOperands(SDOperand (N, 0),
&NewValues[0], NewValues.size());
}
SDOperand DAGTypeLegalizer::PromoteOperand_MEMBARRIER(SDNode *N) {
SDOperand NewOps[6];
NewOps[0] = N->getOperand(0);
for (unsigned i = 1; i < array_lengthof(NewOps); ++i) {
SDOperand Flag = GetPromotedOp(N->getOperand(i));
NewOps[i] = DAG.getZeroExtendInReg(Flag, MVT::i1);
}
return DAG.UpdateNodeOperands(SDOperand (N, 0), NewOps,
array_lengthof(NewOps));
}