From e5dd30f77e10b3fa3395312045c06e5e15f9620e Mon Sep 17 00:00:00 2001
From: Eugene Leviant <eleviant@accesssoftek.com>
Date: Tue, 22 Oct 2019 12:57:23 +0000
Subject: [PATCH] [ThinLTO] Add code comment. NFC

llvm-svn: 375500
---
 llvm/lib/Transforms/IPO/FunctionImport.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/llvm/lib/Transforms/IPO/FunctionImport.cpp b/llvm/lib/Transforms/IPO/FunctionImport.cpp
index 2ce8c92..3f5cc07 100644
--- a/llvm/lib/Transforms/IPO/FunctionImport.cpp
+++ b/llvm/lib/Transforms/IPO/FunctionImport.cpp
@@ -952,6 +952,9 @@ void llvm::thinLTOResolvePrevailingInModule(
     if (NewLinkage == GV.getLinkage())
       return;
     if (GlobalValue::isLocalLinkage(GV.getLinkage()) ||
+        // Don't internalize anything here, because the code below
+        // lacks necessary correctness checks. Leave this job to
+        // LLVM 'internalize' pass.
         GlobalValue::isLocalLinkage(NewLinkage) ||
         // In case it was dead and already converted to declaration.
         GV.isDeclaration())
-- 
2.7.4