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Utils: Avoid RAUW on metadata in CloneFunction() 

llvm-svn: 223555
This commit is contained in:
Duncan P. N. Exon Smith 2014-12-06 00:48:13 +00:00
parent 05044c248e
commit b13f7d2e36
1 changed files with 4 additions and 4 deletions
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8
llvm/lib/Transforms/Utils/CloneFunction.cpp
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@ -164,14 +164,13 @@ static MDNode* FindSubprogram(const Function *F, DebugInfoFinder &Finder) {
// Add an operand to an existing MDNode. The new operand will be added at the
// back of the operand list.
static void AddOperand(MDNode *Node, Value *Operand) {
static void AddOperand(DICompileUnit CU, MDNode *Node, Value *Operand) {
SmallVector<Value*, 16> Operands;
for (unsigned i = 0; i < Node->getNumOperands(); i++) {
Operands.push_back(Node->getOperand(i));
}
Operands.push_back(Operand);
MDNode *NewNode = MDNode::get(Node->getContext(), Operands);
Node->replaceAllUsesWith(NewNode);
CU.replaceSubprograms(DIArray(MDNode::get(CU->getContext(), Operands)));
}
// Clone the module-level debug info associated with OldFunc. The cloned data
@ -196,7 +195,8 @@ static void CloneDebugInfoMetadata(Function *NewFunc, const Function *OldFunc,
// also contain the new one.
for (unsigned i = 0; i < Subprograms.getNumElements(); i++) {
if ((MDNode*)Subprograms.getElement(i) == OldSubprogramMDNode) {
AddOperand(Subprograms, NewSubprogram);
AddOperand(CU, Subprograms, NewSubprogram);
break;
}
}
}