[lld] r228069 - Avoid two function calls of file() when not needed.

[Davide Italiano]

Author: davide
Date: Tue Feb  3 17:44:33 2015
New Revision: 228069

URL: http://llvm.org/viewvc/llvm-project?rev=228069&view=rev
Log:
Avoid two function calls of file() when not needed.  

Reported by:	ruiu

Modified:
    lld/trunk/lib/Core/DefinedAtom.cpp

Modified: lld/trunk/lib/Core/DefinedAtom.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/lib/Core/DefinedAtom.cpp?rev=228069&r1=228068&r2=228069&view=diff
==============================================================================
--- lld/trunk/lib/Core/DefinedAtom.cpp (original)
+++ lld/trunk/lib/Core/DefinedAtom.cpp Tue Feb  3 17:44:33 2015
@@ -83,12 +83,15 @@ DefinedAtom::ContentPermissions DefinedA
 
 bool DefinedAtom::compareByPosition(const DefinedAtom *lhs,
                                     const DefinedAtom *rhs) {
-  const File *lhsFile = &lhs->file();
-  const File *rhsFile = &rhs->file();
+  const File *lhsFile;
+  const File *rhsFile;
 
   if (lhs == rhs)
     return false;
 
+  lhsFile = &lhs->file();
+  rhsFile = &rhs->file();
+
   if (lhsFile->ordinal() != rhsFile->ordinal())
     return lhsFile->ordinal() < rhsFile->ordinal();
   assert(lhs->ordinal() != rhs->ordinal());