Avoid two function calls of file() when not needed.

Reported by:	ruiu

llvm-svn: 228069

1 files changed, 5 insertions, 2 deletions

diff --git a/lld/lib/Core/DefinedAtom.cpp b/lld/lib/Core/DefinedAtom.cpp
index fd9f23d7fba..bb884771b08 100644
--- a/lld/lib/Core/DefinedAtom.cpp
+++ b/lld/lib/Core/DefinedAtom.cpp
@@ -83,12 +83,15 @@ DefinedAtom::ContentPermissions DefinedAtom::permissions(ContentType type) {
 
 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());