diff options
Diffstat (limited to 'gnu/llvm/lib/Linker/IRMover.cpp')
| -rw-r--r-- | gnu/llvm/lib/Linker/IRMover.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gnu/llvm/lib/Linker/IRMover.cpp b/gnu/llvm/lib/Linker/IRMover.cpp index ee067a912e3..f7170e714b9 100644 --- a/gnu/llvm/lib/Linker/IRMover.cpp +++ b/gnu/llvm/lib/Linker/IRMover.cpp @@ -954,7 +954,12 @@ Expected<Constant *> IRLinker::linkGlobalValueProto(GlobalValue *SGV, NewGV->setLinkage(GlobalValue::InternalLinkage); Constant *C = NewGV; - if (DGV) + // Only create a bitcast if necessary. In particular, with + // DebugTypeODRUniquing we may reach metadata in the destination module + // containing a GV from the source module, in which case SGV will be + // the same as DGV and NewGV, and TypeMap.get() will assert since it + // assumes it is being invoked on a type in the source module. + if (DGV && NewGV != SGV) C = ConstantExpr::getBitCast(NewGV, TypeMap.get(SGV->getType())); if (DGV && NewGV != DGV) { |