diff options
Diffstat (limited to 'lib/Transforms/Utils/ValueMapper.cpp')
-rw-r--r-- | lib/Transforms/Utils/ValueMapper.cpp | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/lib/Transforms/Utils/ValueMapper.cpp b/lib/Transforms/Utils/ValueMapper.cpp index df11cbbcb2..8b5ddb0862 100644 --- a/lib/Transforms/Utils/ValueMapper.cpp +++ b/lib/Transforms/Utils/ValueMapper.cpp @@ -147,10 +147,21 @@ Value *llvm::MapValue(const Value *V, ValueToValueMapTy &VM) { /// current values into those specified by VMap. /// void llvm::RemapInstruction(Instruction *I, ValueToValueMapTy &VMap) { + // Remap operands. for (User::op_iterator op = I->op_begin(), E = I->op_end(); op != E; ++op) { Value *V = MapValue(*op, VMap); assert(V && "Referenced value not in value map!"); *op = V; } -} + // Remap attached metadata. + SmallVector<std::pair<unsigned, MDNode *>, 4> MDs; + I->getAllMetadata(MDs); + for (SmallVectorImpl<std::pair<unsigned, MDNode *> >::iterator + MI = MDs.begin(), ME = MDs.end(); MI != ME; ++MI) { + Value *Old = MI->second; + Value *New = MapValue(Old, VMap); + if (New != Old) + I->setMetadata(MI->first, cast<MDNode>(New)); + } +} |