fix a -Wself-assign warning


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122894 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGStmt.cpp b/lib/CodeGen/CGStmt.cpp
index b86cdf8..dbef09f 100644
--- a/lib/CodeGen/CGStmt.cpp
+++ b/lib/CodeGen/CGStmt.cpp
@@ -907,7 +907,7 @@
       bool result = Target.resolveSymbolicName(Constraint,
                                                &(*OutCons)[0],
                                                OutCons->size(), Index);
-      assert(result && "Could not resolve symbolic name"); result=result;
+      assert(result && "Could not resolve symbolic name"); (void)result;
       Result += llvm::utostr(Index);
       break;
     }