From: Teresa Johnson <tejohnson@google.com>
Date: Tue, 10 Nov 2015 18:26:31 +0000 (+0000)
Subject: [ThinLTO] Update comment per change in WeakAny handling (NFC)
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=e272b971caee419cb602eca63f32d9fca28695d3

[ThinLTO] Update comment per change in WeakAny handling (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252627 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index 88b019a6f92..8968377663e 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -655,7 +655,9 @@ bool ModuleLinker::doImportAsDefinition(const GlobalValue *SGV) {
       return false;
     return doImportAsDefinition(GA->getBaseObject());
   }
-  // Always import GlobalVariable definitions. The linkage changes
+  // Always import GlobalVariable definitions, except for the special
+  // case of WeakAny which are imported as ExternalWeak declarations
+  // (see comments in ModuleLinker::getLinkage). The linkage changes
   // described in ModuleLinker::getLinkage ensure the correct behavior (e.g.
   // global variables with external linkage are transformed to
   // available_externally definitions, which are ultimately turned into