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Support for legalizing MEMBARRIER.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47667 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1140,8 +1140,11 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
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case TargetLowering::Legal: {
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SDOperand Ops[6];
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Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain.
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for (int x = 1; x < 6; ++x)
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Ops[x] = PromoteOp(Node->getOperand(x));
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for (int x = 1; x < 6; ++x) {
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Ops[x] = Node->getOperand(x);
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if (!isTypeLegal(Ops[x].getValueType()))
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Ops[x] = PromoteOp(Ops[x]);
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}
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Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6);
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break;
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}
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@ -190,6 +190,7 @@ private:
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SDOperand PromoteOperand_FP_EXTEND(SDNode *N);
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SDOperand PromoteOperand_FP_ROUND(SDNode *N);
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SDOperand PromoteOperand_INT_TO_FP(SDNode *N);
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SDOperand PromoteOperand_MEMBARRIER(SDNode *N);
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SDOperand PromoteOperand_RET(SDNode *N, unsigned OpNo);
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SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo);
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SDOperand PromoteOperand_SETCC(SDNode *N, unsigned OpNo);
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@ -359,6 +359,8 @@ bool DAGTypeLegalizer::PromoteOperand(SDNode *N, unsigned OpNo) {
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case ISD::BUILD_VECTOR: Res = PromoteOperand_BUILD_VECTOR(N); break;
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case ISD::RET: Res = PromoteOperand_RET(N, OpNo); break;
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case ISD::MEMBARRIER: Res = PromoteOperand_MEMBARRIER(N); break;
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}
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// If the result is null, the sub-method took care of registering results etc.
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@ -612,3 +614,14 @@ SDOperand DAGTypeLegalizer::PromoteOperand_RET(SDNode *N, unsigned OpNo) {
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return DAG.UpdateNodeOperands(SDOperand (N, 0),
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&NewValues[0], NewValues.size());
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}
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SDOperand DAGTypeLegalizer::PromoteOperand_MEMBARRIER(SDNode *N) {
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SDOperand NewOps[6];
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NewOps[0] = N->getOperand(0);
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for (unsigned i = 1; i < array_lengthof(NewOps); ++i) {
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SDOperand Flag = GetPromotedOp(N->getOperand(i));
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NewOps[i] = DAG.getZeroExtendInReg(Flag, MVT::i1);
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}
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return DAG.UpdateNodeOperands(SDOperand (N, 0), NewOps,
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array_lengthof(NewOps));
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}
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