From: Devang Patel <dpatel@apple.com>
Date: Thu, 14 Sep 2006 05:49:10 +0000 (+0000)
Subject: Add comment.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=544ea34a9f7aeef5fa3cbfdaae5933f93f4f68ec;p=oota-llvm.git

Add comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30315 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/tools/lto/lto.cpp b/tools/lto/lto.cpp
index 9dfc45676df..7f1ec1ac348 100644
--- a/tools/lto/lto.cpp
+++ b/tools/lto/lto.cpp
@@ -93,6 +93,9 @@ findExternalRefs(Value *value, std::set<std::string> &references,
     if (lt != LTOInternalLinkage && strncmp (gv->getName().c_str(), "llvm.", 5))
       references.insert(mangler.getValueName(gv));
   }
+
+  // GlobalValue, even with InternalLinkage type, may have operands with 
+  // ExternalLinkage type. Do not ignore these operands.
   if (Constant *c = dyn_cast<Constant>(value))
     // Handle ConstantExpr, ConstantStruct, ConstantArry etc..
     for (unsigned i = 0, e = c->getNumOperands(); i != e; ++i)