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IR: Move MDStrings to a BumpPtrAllocator

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We never delete any MDString until the context is destroyed.  Might as
well throw them onto a BumpPtrAllocator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265520 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith 2016-04-06 06:41:54 +00:00
parent e49dfa7e9a
commit adb72b91cb
1 changed files with 1 additions and 1 deletions
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2
lib/IR/LLVMContextImpl.h
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@ -931,7 +931,7 @@ public:
FoldingSet<AttributeSetImpl> AttrsLists;
FoldingSet<AttributeSetNode> AttrsSetNodes;
StringMap<MDString> MDStringCache;
StringMap<MDString, BumpPtrAllocator> MDStringCache;
DenseMap<Value *, ValueAsMetadata *> ValuesAsMetadata;
DenseMap<Metadata *, MetadataAsValue *> MetadataAsValues;