Gracefully destroy MDNodes.

llvm-svn: 81353
2009-09-09 17:07:07 +00:00 · 2009-09-09 17:07:07 +00:00 · 93056ec4e2
parent 97840a396b
commit 93056ec4e2
1 changed files with 3 additions and 0 deletions
--- a/llvm/lib/VMCore/LLVMContextImpl.h
+++ b/llvm/lib/VMCore/LLVMContextImpl.h
@ -203,6 +203,9 @@ public:
    AggZeroConstants.freeConstants();
    NullPtrConstants.freeConstants();
    UndefValueConstants.freeConstants();
+    for (FoldingSet<MDNode>::iterator I=MDNodeSet.begin(), 
+           E =MDNodeSet.end(); I != E; ++I)
+      I->dropAllReferences();
    for (IntMapTy::iterator I=IntConstants.begin(), E=IntConstants.end(); 
         I != E; ++I) {
      if (I->second->use_empty())