[OPENMP] Set scheduling for doacross loops as schedule, 1.

The default scheduling for doacross loops is changed from static to
static, 1.

llvm-svn: 356388
diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.h b/clang/lib/CodeGen/CGOpenMPRuntime.h
index 58a2358..45d4d84 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntime.h
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.h
@@ -1565,7 +1565,7 @@
   /// schedule clause.
   virtual void getDefaultScheduleAndChunk(CodeGenFunction &CGF,
       const OMPLoopDirective &S, OpenMPScheduleClauseKind &ScheduleKind,
-      const Expr *&ChunkExpr) const {}
+      const Expr *&ChunkExpr) const;
 
   /// Emits call of the outlined function with the provided arguments,
   /// translating these arguments to correct target-specific arguments.