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Handle static alloca arguments to PHI nodes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19409 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-09 01:16:24 +00:00
parent 1482458b23
commit ee749d7488
1 changed files with 8 additions and 3 deletions
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11
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -836,8 +836,7 @@ void SelectionDAGISel::BuildSelectionDAG(SelectionDAG &DAG, BasicBlock *LLVMBB,
// blocks are available as virtual registers.
for (BasicBlock::iterator I = LLVMBB->begin(), E = LLVMBB->end(); I != E;++I)
if (!I->use_empty()) {
std::map<const Value*, unsigned>::iterator VMI =
FuncInfo.ValueMap.find(I);
std::map<const Value*, unsigned>::iterator VMI =FuncInfo.ValueMap.find(I);
if (VMI != FuncInfo.ValueMap.end())
CopyValueToVirtualRegister(SDL, I, VMI->second);
}
@ -878,7 +877,13 @@ void SelectionDAGISel::BuildSelectionDAG(SelectionDAG &DAG, BasicBlock *LLVMBB,
Reg = RegOut;
} else {
Reg = FuncInfo.ValueMap[PHIOp];
assert(Reg && "Didn't codegen value into a register!??");
if (Reg == 0) {
assert(isa<AllocaInst>(PHIOp) &&
FuncInfo.StaticAllocaMap.count(cast<AllocaInst>(PHIOp)) &&
"Didn't codegen value into a register!??");
Reg = FuncInfo.CreateRegForValue(PHIOp);
CopyValueToVirtualRegister(SDL, PHIOp, Reg);
}
}
// Remember that this register needs to added to the machine PHI node as