[llvm] r242031 - Aliases don't have available_externally linkage.

[Rafael Espindola]

Author: rafael
Date: Mon Jul 13 09:39:02 2015
New Revision: 242031

URL: http://llvm.org/viewvc/llvm-project?rev=242031&view=rev
Log:
Aliases don't have available_externally linkage.

Allowing that is probably a good idea, but currently we don't, so
this is dead code.

Modified:
    llvm/trunk/lib/Transforms/IPO/ElimAvailExtern.cpp

Modified: llvm/trunk/lib/Transforms/IPO/ElimAvailExtern.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/ElimAvailExtern.cpp?rev=242031&r1=242030&r2=242031&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/IPO/ElimAvailExtern.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/ElimAvailExtern.cpp Mon Jul 13 09:39:02 2015
@@ -81,16 +81,5 @@ bool EliminateAvailableExternally::runOn
     NumFunctions++;
   }
 
-  // Drop targets of available externally aliases.
-  for (Module::alias_iterator I = M.alias_begin(), E = M.alias_end(); I != E;
-       ++I) {
-    if (!I->hasAvailableExternallyLinkage())
-      continue;
-    I->setAliasee(nullptr);
-    I->removeDeadConstantUsers();
-    I->setLinkage(GlobalValue::ExternalLinkage);
-    NumAliases++;
-  }
-
   return Changed;
 }