Introduce MetadataBase, a base class for MDString and MDNode.
Derive MDString directly from MetadataBase.
Introduce new bitcode block to hold metadata.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76759 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Writer/ValueEnumerator.cpp b/lib/Bitcode/Writer/ValueEnumerator.cpp
index 32b2819..a31a492 100644
--- a/lib/Bitcode/Writer/ValueEnumerator.cpp
+++ b/lib/Bitcode/Writer/ValueEnumerator.cpp
@@ -259,10 +259,14 @@
EnumerateOperandType(C->getOperand(i));
if (const MDNode *N = dyn_cast<MDNode>(V)) {
- for (unsigned i = 0, e = N->getNumElements(); i != e; ++i)
- EnumerateOperandType(N->getElement(i));
+ for (unsigned i = 0, e = N->getNumElements(); i != e; ++i) {
+ Value *Elem = N->getElement(i);
+ if (Elem)
+ EnumerateOperandType(Elem);
+ }
}
- }
+ } else if (const MDString *MDS = dyn_cast<MDString>(V))
+ EnumerateValue(V);
}
void ValueEnumerator::EnumerateAttributes(const AttrListPtr &PAL) {