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Support for legalizing MEMBARRIER. 

llvm-svn: 47667
This commit is contained in:
Duncan Sands 2008-02-27 08:53:44 +00:00
parent a1523a38f9
commit 96658d0189
3 changed files with 19 additions and 2 deletions
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7
llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -1140,8 +1140,11 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
case TargetLowering::Legal: { case TargetLowering::Legal: {
SDOperand Ops[6]; SDOperand Ops[6];
Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain. Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain.
for (int x = 1; x < 6; ++x) for (int x = 1; x < 6; ++x) {
Ops[x] = PromoteOp(Node->getOperand(x)); Ops[x] = Node->getOperand(x);
if (!isTypeLegal(Ops[x].getValueType()))
Ops[x] = PromoteOp(Ops[x]);
}
Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6); Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6);
break; break;
} }

1
llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
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@ -190,6 +190,7 @@ private:
SDOperand PromoteOperand_FP_EXTEND(SDNode *N); SDOperand PromoteOperand_FP_EXTEND(SDNode *N);
SDOperand PromoteOperand_FP_ROUND(SDNode *N); SDOperand PromoteOperand_FP_ROUND(SDNode *N);
SDOperand PromoteOperand_INT_TO_FP(SDNode *N); SDOperand PromoteOperand_INT_TO_FP(SDNode *N);
SDOperand PromoteOperand_MEMBARRIER(SDNode *N);
SDOperand PromoteOperand_RET(SDNode *N, unsigned OpNo); SDOperand PromoteOperand_RET(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo); SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo);
SDOperand PromoteOperand_SETCC(SDNode *N, unsigned OpNo); SDOperand PromoteOperand_SETCC(SDNode *N, unsigned OpNo);

13
llvm/lib/CodeGen/SelectionDAG/LegalizeTypesPromote.cpp
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@ -359,6 +359,8 @@ bool DAGTypeLegalizer::PromoteOperand(SDNode *N, unsigned OpNo) {
case ISD::BUILD_VECTOR: Res = PromoteOperand_BUILD_VECTOR(N); break; case ISD::BUILD_VECTOR: Res = PromoteOperand_BUILD_VECTOR(N); break;
case ISD::RET: Res = PromoteOperand_RET(N, OpNo); 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. // 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), return DAG.UpdateNodeOperands(SDOperand (N, 0),
&NewValues[0], NewValues.size()); &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));
}