Add a missing call to MDNode::deleteTemporary().

Follow-up to r259975. Kudos to the ASAN bots!

<rdar://problem/24493203>

llvm-svn: 260002

1 files changed, 4 insertions, 3 deletions

diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index 34dcea11266..3da0765d375 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -2056,19 +2056,20 @@ llvm::DIType *CGDebugInfo::CreateEnumType(const EnumType *Ty) {
     // It is possible for enums to be created as part of their own
     // declcontext. We need to cache a placeholder to avoid the type being
     // created twice before hitting the cache.
-    llvm::DIScope *EDContext = DBuilder.createReplaceableCompositeType(
+    llvm::DIScope *TmpContext = DBuilder.createReplaceableCompositeType(
       llvm::dwarf::DW_TAG_enumeration_type, "", TheCU, DefUnit, 0);
 
     unsigned Line = getLineNumber(ED->getLocation());
     StringRef EDName = ED->getName();
     llvm::DIType *RetTy = DBuilder.createReplaceableCompositeType(
-        llvm::dwarf::DW_TAG_enumeration_type, EDName, EDContext, DefUnit, Line,
+        llvm::dwarf::DW_TAG_enumeration_type, EDName, TmpContext, DefUnit, Line,
         0, Size, Align, llvm::DINode::FlagFwdDecl, FullName);
 
     // Cache the enum type so it is available when building the declcontext
     // and replace the declcontect with the real thing.
     TypeCache[Ty].reset(RetTy);
-    EDContext->replaceAllUsesWith(getDeclContextDescriptor(ED));
+    TmpContext->replaceAllUsesWith(getDeclContextDescriptor(ED));
+    llvm::MDNode::deleteTemporary(TmpContext);
 
     ReplaceMap.emplace_back(
         std::piecewise_construct, std::make_tuple(Ty),