commit 832b2a9cd8870211bf2d347d7b435beacbb06c8d
author Anton Korobeynikov <asl@math.spbu.ru> Tue Sep 09 18:23:48 2008 +0000
committer Anton Korobeynikov <asl@math.spbu.ru> Tue Sep 09 18:23:48 2008 +0000
tree 2c8499487682972aae62e62ecf86c320f70f4045
parent bff66b0c6c8266a6f9ba6c9bd5d2541a4d4c6ec9

Fix incorrect linker behaviour: we shouldn't resolve weak aliases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55997 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Linker/LinkModules.cpp

diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index 3b319c2..f4ebe6b 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -1169,8 +1169,8 @@
 static bool ResolveAliases(Module *Dest) {
   for (Module::alias_iterator I = Dest->alias_begin(), E = Dest->alias_end();
        I != E; ++I)
-    if (const GlobalValue *GV = I->resolveAliasedGlobal())
-      if (!GV->isDeclaration())
+    if (const GlobalValue *GV = I->resolveAliasedGlobal(/*traverseWeak*/ false))
+      if (GV != I && !GV->isDeclaration())
         I->replaceAllUsesWith(const_cast<GlobalValue*>(GV));
 
   return false;