Add comdat to thunks.

llvm-svn: 226465
2015-01-19 14:02:14 +00:00
parent b8039074d0
commit f9b1730d41
2 changed files with 7 additions and 4 deletions
--- a/clang/lib/CodeGen/CGVTables.cpp
+++ b/clang/lib/CodeGen/CGVTables.cpp
@@ -377,7 +377,10 @@ void CodeGenFunction::GenerateThunk(llvm::Function *Fn,

  // Set the right linkage.
  CGM.setFunctionLinkage(GD, Fn);
-  
+
+  if (CGM.supportsCOMDAT() && Fn->isWeakForLinker())
+    Fn->setComdat(CGM.getModule().getOrInsertComdat(Fn->getName()));
+
  // Set the right visibility.
  const CXXMethodDecl *MD = cast<CXXMethodDecl>(GD.getDecl());
  setThunkVisibility(CGM, MD, Thunk, Fn);