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Handle static alloca arguments to PHI nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19409 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -836,8 +836,7 @@ void SelectionDAGISel::BuildSelectionDAG(SelectionDAG &DAG, BasicBlock *LLVMBB,
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// blocks are available as virtual registers.
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for (BasicBlock::iterator I = LLVMBB->begin(), E = LLVMBB->end(); I != E;++I)
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if (!I->use_empty()) {
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std::map<const Value*, unsigned>::iterator VMI =
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FuncInfo.ValueMap.find(I);
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std::map<const Value*, unsigned>::iterator VMI =FuncInfo.ValueMap.find(I);
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if (VMI != FuncInfo.ValueMap.end())
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CopyValueToVirtualRegister(SDL, I, VMI->second);
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}
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@ -878,7 +877,13 @@ void SelectionDAGISel::BuildSelectionDAG(SelectionDAG &DAG, BasicBlock *LLVMBB,
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Reg = RegOut;
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} else {
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Reg = FuncInfo.ValueMap[PHIOp];
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assert(Reg && "Didn't codegen value into a register!??");
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if (Reg == 0) {
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assert(isa<AllocaInst>(PHIOp) &&
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FuncInfo.StaticAllocaMap.count(cast<AllocaInst>(PHIOp)) &&
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"Didn't codegen value into a register!??");
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Reg = FuncInfo.CreateRegForValue(PHIOp);
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CopyValueToVirtualRegister(SDL, PHIOp, Reg);
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}
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}
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// Remember that this register needs to added to the machine PHI node as
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