diff options
| -rw-r--r-- | llvm/lib/Transforms/Utils/ValueMapper.cpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/llvm/lib/Transforms/Utils/ValueMapper.cpp b/llvm/lib/Transforms/Utils/ValueMapper.cpp index 2de1928..8daf546 100644 --- a/llvm/lib/Transforms/Utils/ValueMapper.cpp +++ b/llvm/lib/Transforms/Utils/ValueMapper.cpp @@ -227,13 +227,14 @@ static Metadata *mapDistinctNode(const MDNode *Node, assert(Node->isDistinct() && "Expected distinct node"); MDNode *NewMD = MDNode::replaceWithDistinct(Node->clone()); - remap(Node, NewMD, Cycles, VM, Flags, TypeMapper, Materializer); - // Track any cycles beneath this node. - for (Metadata *Op : NewMD->operands()) - if (auto *Node = dyn_cast_or_null<MDNode>(Op)) - if (!Node->isResolved()) - Cycles.push_back(Node); + // Remap the operands. If any change, track those that could be involved in + // uniquing cycles. + if (remap(Node, NewMD, Cycles, VM, Flags, TypeMapper, Materializer)) + for (Metadata *Op : NewMD->operands()) + if (auto *Node = dyn_cast_or_null<MDNode>(Op)) + if (!Node->isResolved()) + Cycles.push_back(Node); return NewMD; } |