Implement -Wimplicit-fallthrough.

[thirdparty/gcc.git] / gcc / fortran / frontend-passes.c

diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c
index 3a2c16e522695af7e20357eadf6ac379e4721ca8..e049fb9f2ced5e16eb472935c1f49a5844f03b5e 100644 (file)
--- a/gcc/fortran/frontend-passes.c
+++ b/gcc/fortran/frontend-passes.c
@@ -1481,7 +1481,7 @@ optimize_op (gfc_expr *e)
     case INTRINSIC_LT:
       changed = optimize_comparison (e, op);
 
-      /* Fall through */
+      gcc_fallthrough ();
       /* Look at array constructors.  */
     case INTRINSIC_PLUS:
     case INTRINSIC_MINUS:
@@ -3349,6 +3349,7 @@ gfc_expr_walker (gfc_expr **e, walk_expr_fn_t exprfn, void *data)
 
            /* Fall through to the variable case in order to walk the
               reference.  */
+           gcc_fallthrough ();
 
          case EXPR_SUBSTRING:
          case EXPR_VARIABLE: