diff options
| -rw-r--r-- | lib/VMCore/Metadata.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/VMCore/Metadata.cpp b/lib/VMCore/Metadata.cpp index b9f97dbf60..da69c43ff7 100644 --- a/lib/VMCore/Metadata.cpp +++ b/lib/VMCore/Metadata.cpp @@ -354,6 +354,22 @@ void MDNode::replaceOperand(MDNodeOperand *Op, Value *To) { // InsertPoint will have been set by the FindNodeOrInsertPos call. pImpl->MDNodeSet.InsertNode(this, InsertPoint); + + // If this MDValue was previously function-local but no longer is, clear + // its function-local flag. + if (isFunctionLocal() && !isFunctionLocalValue(To)) { + bool isStillFunctionLocal = false; + for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { + Value *V = getOperand(i); + if (!V) continue; + if (isFunctionLocalValue(V)) { + isStillFunctionLocal = true; + break; + } + } + if (!isStillFunctionLocal) + setValueSubclassData(getSubclassDataFromValue() & ~FunctionLocalBit); + } } //===----------------------------------------------------------------------===// @@ -387,6 +403,8 @@ MDNode *NamedMDNode::getOperand(unsigned i) const { /// addOperand - Add metadata Operand. void NamedMDNode::addOperand(MDNode *M) { + assert(!M->isFunctionLocal() && + "NamedMDNode operands must not be function-local!"); getNMDOps(Operands).push_back(TrackingVH<MDNode>(M)); } |