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IR: Return unique_ptr from MDNode::getTemporary()

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Change `MDTuple::getTemporary()` and `MDLocation::getTemporary()` to
return (effectively) `std::unique_ptr<T, MDNode::deleteTemporary>`, and
clean up call sites.  (For now, `DIBuilder` call sites just call
`release()` immediately.)

There's an accompanying change in each of clang and polly to use the new
API.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226504 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-01-19 21:30:18 +00:00
parent a23cc6a1ea
commit f9eaea701d
10 changed files with 77 additions and 81 deletions
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11
lib/Transforms/Utils/InlineFunction.cpp
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@ -319,13 +319,12 @@ static void CloneAliasScopeMetadata(CallSite CS, ValueToValueMapTy &VMap) {
// Now we have a complete set of all metadata in the chains used to specify
// the noalias scopes and the lists of those scopes.
SmallVector<MDTuple *, 16> DummyNodes;
SmallVector<TempMDTuple, 16> DummyNodes;
DenseMap<const MDNode *, TrackingMDNodeRef> MDMap;
for (SetVector<const MDNode *>::iterator I = MD.begin(), IE = MD.end();
I != IE; ++I) {
MDTuple *Dummy = MDTuple::getTemporary(CalledFunc->getContext(), None);
DummyNodes.push_back(Dummy);
MDMap[*I].reset(Dummy);
DummyNodes.push_back(MDTuple::getTemporary(CalledFunc->getContext(), None));
MDMap[*I].reset(DummyNodes.back().get());
}
// Create new metadata nodes to replace the dummy nodes, replacing old
@ -389,10 +388,6 @@ static void CloneAliasScopeMetadata(CallSite CS, ValueToValueMapTy &VMap) {
NI->setMetadata(LLVMContext::MD_noalias, M);
}
}
// Now that everything has been replaced, delete the dummy nodes.
for (unsigned i = 0, ie = DummyNodes.size(); i != ie; ++i)
MDNode::deleteTemporary(DummyNodes[i]);
}
/// AddAliasScopeMetadata - If the inlined function has noalias arguments, then