[PATCH] Emit initializers for selectany globals in comdat-associative sections (PR20889)

[Reid Kleckner]

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Comment at: lib/CodeGen/CGDeclCXX.cpp:335
@@ -334,1 +334,3 @@
     DelayedCXXInitPosition.erase(D);
+  } else if (D->hasAttr<SelectAnyAttr>()) {
+    // SelectAny globals will be comdat-folded. Put the initializer into a COMDAT
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Should we do the same for WeakAttr? What does GCC do?

I wonder if there is a more general GVA linkage check we should do. Can you add a test for static data members of implicitly instantiated dllexport class templates?

http://reviews.llvm.org/D5281