Don't crash when the key of a comdat is lazily linked.
llvm-svn: 223673
diff --git a/llvm/lib/Linker/LinkModules.cpp b/llvm/lib/Linker/LinkModules.cpp
index 0671024..331fdad 100644
--- a/llvm/lib/Linker/LinkModules.cpp
+++ b/llvm/lib/Linker/LinkModules.cpp
@@ -1482,6 +1482,15 @@
for (unsigned i = 0, e = AppendingVars.size(); i != e; ++i)
linkAppendingVarInit(AppendingVars[i]);
+ for (const auto &Entry : DstM->getComdatSymbolTable()) {
+ const Comdat &C = Entry.getValue();
+ if (C.getSelectionKind() == Comdat::Any)
+ continue;
+ const GlobalValue *GV = SrcM->getNamedValue(C.getName());
+ assert(GV);
+ MapValue(GV, ValueMap, RF_None, &TypeMap, &ValMaterializer);
+ }
+
// Link in the function bodies that are defined in the source module into
// DstM.
for (Function &SF : *SrcM) {