forked from OSchip/llvm-project
parent
fd98678a8a
commit
8a98c7f337
llvm/lib/CodeGen/SelectionDAG
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@ -430,7 +430,6 @@ void SelectionDAGLowering::visitBr(BranchInst &I) {
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MachineBasicBlock *Succ1MBB = FuncInfo.MBBMap[I.getSuccessor(1)];
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SDOperand Cond = getValue(I.getCondition());
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if (Succ1MBB == NextBlock) {
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// If the condition is false, fall through. This means we should branch
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// if the condition is true to Succ #0.
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@ -444,12 +443,12 @@ void SelectionDAGLowering::visitBr(BranchInst &I) {
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DAG.setRoot(DAG.getNode(ISD::BRCOND, MVT::Other, getRoot(),
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Cond, DAG.getBasicBlock(Succ1MBB)));
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} else {
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// Neither edge is a fall through. If the comparison is true, jump to
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// Succ#0, otherwise branch unconditionally to succ #1.
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DAG.setRoot(DAG.getNode(ISD::BRCOND, MVT::Other, getRoot(),
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Cond, DAG.getBasicBlock(Succ0MBB)));
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DAG.setRoot(DAG.getNode(ISD::BR, MVT::Other, getRoot(),
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DAG.getBasicBlock(Succ1MBB)));
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std::vector<SDOperand> Ops;
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Ops.push_back(getRoot());
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Ops.push_back(Cond);
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Ops.push_back(DAG.getBasicBlock(Succ0MBB));
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Ops.push_back(DAG.getBasicBlock(Succ1MBB));
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DAG.setRoot(DAG.getNode(ISD::BRCONDTWOWAY, MVT::Other, Ops));
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}
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}
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}
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