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Use WeakVH while storing metadata in containers.

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This fixes PR5393.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86091 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-11-05 01:13:02 +00:00
parent a0e7b02760
commit 85b8de8118
2 changed files with 7 additions and 7 deletions
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10
lib/AsmParser/LLParser.cpp
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@ -480,17 +480,17 @@ bool LLParser::ParseMDNode(MetadataBase *&Node) {
if (ParseUInt32(MID)) return true;
// Check existing MDNode.
std::map<unsigned, MetadataBase *>::iterator I = MetadataCache.find(MID);
std::map<unsigned, WeakVH>::iterator I = MetadataCache.find(MID);
if (I != MetadataCache.end()) {
Node = I->second;
Node = cast<MetadataBase>(I->second);
return false;
}
// Check known forward references.
std::map<unsigned, std::pair<MetadataBase *, LocTy> >::iterator
std::map<unsigned, std::pair<WeakVH, LocTy> >::iterator
FI = ForwardRefMDNodes.find(MID);
if (FI != ForwardRefMDNodes.end()) {
Node = FI->second.first;
Node = cast<MetadataBase>(FI->second.first);
return false;
}
@ -570,7 +570,7 @@ bool LLParser::ParseStandaloneMetadata() {
MDNode *Init = MDNode::get(Context, Elts.data(), Elts.size());
MetadataCache[MetadataID] = Init;
std::map<unsigned, std::pair<MetadataBase *, LocTy> >::iterator
std::map<unsigned, std::pair<WeakVH, LocTy> >::iterator
FI = ForwardRefMDNodes.find(MetadataID);
if (FI != ForwardRefMDNodes.end()) {
MDNode *FwdNode = cast<MDNode>(FI->second.first);

4
lib/AsmParser/LLParser.h
View File

@ -79,8 +79,8 @@ namespace llvm {
std::map<unsigned, std::pair<PATypeHolder, LocTy> > ForwardRefTypeIDs;
std::vector<PATypeHolder> NumberedTypes;
/// MetadataCache - This map keeps track of parsed metadata constants.
std::map<unsigned, MetadataBase *> MetadataCache;
std::map<unsigned, std::pair<MetadataBase *, LocTy> > ForwardRefMDNodes;
std::map<unsigned, WeakVH> MetadataCache;
std::map<unsigned, std::pair<WeakVH, LocTy> > ForwardRefMDNodes;
SmallVector<std::pair<unsigned, MDNode *>, 2> MDsOnInst;
struct UpRefRecord {
/// Loc - This is the location of the upref.