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-rw-r--r--llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp b/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
index 4d6a5048797..c2e42177661 100644
--- a/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
+++ b/llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp
@@ -439,9 +439,11 @@ template <class Edge, class BBInfo>
void FuncPGOInstrumentation<Edge, BBInfo>::renameComdatFunction() {
if (!canRenameComdat(F, ComdatMembers))
return;
+ std::string OrigName = F.getName().str();
std::string NewFuncName =
Twine(F.getName() + "." + Twine(FunctionHash)).str();
F.setName(Twine(NewFuncName));
+ GlobalAlias::create(GlobalValue::WeakAnyLinkage, OrigName, &F);
FuncName = Twine(FuncName + "." + Twine(FunctionHash)).str();
Comdat *NewComdat;
Module *M = F.getParent();
@@ -467,7 +469,9 @@ void FuncPGOInstrumentation<Edge, BBInfo>::renameComdatFunction() {
if (GlobalAlias *GA = dyn_cast<GlobalAlias>(CM.second)) {
// For aliases, change the name directly.
assert(dyn_cast<Function>(GA->getAliasee()->stripPointerCasts()) == &F);
+ std::string OrigGAName = GA->getName().str();
GA->setName(Twine(GA->getName() + "." + Twine(FunctionHash)));
+ GlobalAlias::create(GlobalValue::WeakAnyLinkage, OrigGAName, GA);
continue;
}
// Must be a function.
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