Use separate namespace for named metadata.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92931 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 2 deletions

diff --git a/lib/Bitcode/Writer/ValueEnumerator.cpp b/lib/Bitcode/Writer/ValueEnumerator.cpp
index c409c2066d..54bf84d261 100644
--- a/lib/Bitcode/Writer/ValueEnumerator.cpp
+++ b/lib/Bitcode/Writer/ValueEnumerator.cpp
@@ -74,9 +74,10 @@ ValueEnumerator::ValueEnumerator(const Module *M) {
   // Enumerate types used by the type symbol table.
   EnumerateTypeSymbolTable(M->getTypeSymbolTable());
 
-  // Insert constants that are named at module level into the slot pool so that
-  // the module symbol table can refer to them...
+  // Insert constants and metadata  that are named at module level into the slot 
+  // pool so that the module symbol table can refer to them...
   EnumerateValueSymbolTable(M->getValueSymbolTable());
+  EnumerateMDSymbolTable(M->getMDSymbolTable());
 
   SmallVector<std::pair<unsigned, MDNode*>, 8> MDs;
 
@@ -196,6 +197,14 @@ void ValueEnumerator::EnumerateValueSymbolTable(const ValueSymbolTable &VST) {
     EnumerateValue(VI->getValue());
 }
 
+/// EnumerateMDSymbolTable - Insert all of the values in the specified metadata
+/// table.
+void ValueEnumerator::EnumerateMDSymbolTable(const MDSymbolTable &MST) {
+  for (MDSymbolTable::const_iterator MI = MST.begin(), ME = MST.end();
+       MI != ME; ++MI)
+    EnumerateValue(MI->getValue());
+}
+
 void ValueEnumerator::EnumerateMetadata(const MetadataBase *MD) {
   // Check to see if it's already in!
   unsigned &MDValueID = MDValueMap[MD];