From 0661b93de9b2fd2586197ec1c69424386db71722 Mon Sep 17 00:00:00 2001
From: Nick Lewycky <nicholas@mxc.ca>
Date: Thu, 9 Jul 2009 06:03:04 +0000
Subject: [PATCH] Don't create undefined symbols for aliases.

llvm-svn: 75111
---
 llvm/tools/lto/LTOModule.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/llvm/tools/lto/LTOModule.cpp b/llvm/tools/lto/LTOModule.cpp
index 9c8baef7d6a9..c4980d6bf79b 100644
--- a/llvm/tools/lto/LTOModule.cpp
+++ b/llvm/tools/lto/LTOModule.cpp
@@ -325,7 +325,7 @@ void LTOModule::addDefinedDataSymbol(GlobalValue* v, Mangler& mangler)
 
 
 void LTOModule::addDefinedSymbol(GlobalValue* def, Mangler &mangler, 
-                                bool isFunction)
+                                 bool isFunction)
 {    
     // ignore all llvm.* symbols
     if ( strncmp(def->getNameStart(), "llvm.", 5) == 0 )
@@ -401,6 +401,10 @@ void LTOModule::addPotentialUndefinedSymbol(GlobalValue* decl, Mangler &mangler)
     if ( strncmp(decl->getNameStart(), "llvm.", 5) == 0 )
         return;
 
+    // ignore all aliases
+    if (isa<GlobalAlias>(decl))
+        return;
+
     const char* name = mangler.getValueName(decl).c_str();
 
     // we already have the symbol
@@ -539,4 +543,3 @@ const char* LTOModule::getSymbolName(uint32_t index)
     else
         return NULL;
 }
-