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-rw-r--r--llvm/lib/IR/Globals.cpp1
-rw-r--r--llvm/lib/Linker/IRMover.cpp5
2 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/IR/Globals.cpp b/llvm/lib/IR/Globals.cpp
index 7e8ef6526fc..3bf3cc25455 100644
--- a/llvm/lib/IR/Globals.cpp
+++ b/llvm/lib/IR/Globals.cpp
@@ -96,6 +96,7 @@ void GlobalObject::copyAttributesFrom(const GlobalValue *Src) {
if (const auto *GV = dyn_cast<GlobalObject>(Src)) {
setAlignment(GV->getAlignment());
setSection(GV->getSection());
+ setComdat(const_cast<GlobalObject *>(GV)->getComdat());
}
}
diff --git a/llvm/lib/Linker/IRMover.cpp b/llvm/lib/Linker/IRMover.cpp
index 0d37ad1c657..9a2cedfc59e 100644
--- a/llvm/lib/Linker/IRMover.cpp
+++ b/llvm/lib/Linker/IRMover.cpp
@@ -622,6 +622,11 @@ GlobalValue *IRLinker::copyGlobalValueProto(const GlobalValue *SGV,
NewGV->copyAttributesFrom(SGV);
+ // Don't copy the comdat, it's from the original module. We'll handle it
+ // later.
+ if (auto *NewGO = dyn_cast<GlobalObject>(NewGV))
+ NewGO->setComdat(nullptr);
+
// Remove these copied constants in case this stays a declaration, since
// they point to the source module. If the def is linked the values will
// be mapped in during linkFunctionBody.
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