* opts.c (finish_options): Move warning settings from

[pf3gnuchains/gcc-fork.git] / gcc / opts.c

diff --git a/gcc/opts.c b/gcc/opts.c
index 165d7ec..356f093 100644 (file)
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -289,11 +289,6 @@ init_options_struct (struct gcc_options *opts, struct gcc_options *opts_set)
   opts_set->x_param_values = XCNEWVEC (int, num_params);
   init_param_values (opts->x_param_values);
 
-  /* Use priority coloring if cover classes is not defined for the
-     target.  */
-  if (targetm.ira_cover_classes == NULL)
-    opts->x_flag_ira_algorithm = IRA_ALGORITHM_PRIORITY;
-
   /* Initialize whether `char' is signed.  */
   opts->x_flag_signed_char = DEFAULT_SIGNED_CHAR;
   /* Set this to a special "uninitialized" value.  The actual default
@@ -387,7 +382,7 @@ maybe_default_option (struct gcc_options *opts,
                             lang_mask, DK_UNSPECIFIED, loc,
                             handlers, dc);
   else if (default_opt->arg == NULL
-          && !(option->flags & CL_REJECT_NEGATIVE))
+          && !option->cl_reject_negative)
     handle_generated_option (opts, opts_set, default_opt->opt_index,
                             default_opt->arg, !default_opt->value,
                             lang_mask, DK_UNSPECIFIED, loc,
@@ -758,14 +753,6 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set,
   if (!opts->x_flag_sel_sched_pipelining)
     opts->x_flag_sel_sched_pipelining_outer_loops = 0;
 
-  if (!targetm.ira_cover_classes
-      && opts->x_flag_ira_algorithm == IRA_ALGORITHM_CB)
-    {
-      inform (loc,
-             "-fira-algorithm=CB does not work on this architecture");
-      opts->x_flag_ira_algorithm = IRA_ALGORITHM_PRIORITY;
-    }
-
   if (opts->x_flag_conserve_stack)
     {
       maybe_set_param_value (PARAM_LARGE_STACK_FRAME, 100,
@@ -820,6 +807,31 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set,
   if (!opts->x_flag_tree_vectorize || !opts->x_flag_tree_loop_if_convert)
     maybe_set_param_value (PARAM_MAX_STORES_TO_SINK, 0,
                            opts->x_param_values, opts_set->x_param_values);
+
+  /* This replaces set_Wunused.  */
+  if (opts->x_warn_unused_function == -1)
+    opts->x_warn_unused_function = opts->x_warn_unused;
+  if (opts->x_warn_unused_label == -1)
+    opts->x_warn_unused_label = opts->x_warn_unused;
+  /* Wunused-parameter is enabled if both -Wunused -Wextra are enabled.  */
+  if (opts->x_warn_unused_parameter == -1)
+    opts->x_warn_unused_parameter = (opts->x_warn_unused
+                                    && opts->x_extra_warnings);
+  if (opts->x_warn_unused_variable == -1)
+    opts->x_warn_unused_variable = opts->x_warn_unused;
+  /* Wunused-but-set-parameter is enabled if both -Wunused -Wextra are
+     enabled.  */
+  if (opts->x_warn_unused_but_set_parameter == -1)
+    opts->x_warn_unused_but_set_parameter = (opts->x_warn_unused
+                                            && opts->x_extra_warnings);
+  if (opts->x_warn_unused_but_set_variable == -1)
+    opts->x_warn_unused_but_set_variable = opts->x_warn_unused;
+  if (opts->x_warn_unused_value == -1)
+    opts->x_warn_unused_value = opts->x_warn_unused;
+
+  /* This replaces set_Wextra.  */
+  if (opts->x_warn_uninitialized == -1)
+    opts->x_warn_uninitialized = opts->x_extra_warnings;
 }
 
 #define LEFT_COLUMN    27
@@ -1693,6 +1705,11 @@ common_handle_option (struct gcc_options *opts,
       /* No-op. Used by the driver and passed to us because it starts with f.*/
       break;
 
+    case OPT_Wuninitialized:
+      /* Also turn on maybe uninitialized warning.  */
+      warn_maybe_uninitialized = value;
+      break;
+
     default:
       /* If the flag was handled in a standard way, assume the lack of
         processing here is intentional.  */
@@ -1971,6 +1988,9 @@ enable_warning_as_error (const char *arg, int value, unsigned int lang_mask,
       control_warning_option (option_index, (int) kind, value,
                              loc, lang_mask,
                              handlers, opts, opts_set, dc);
+      if (option_index == OPT_Wuninitialized)
+        enable_warning_as_error ("maybe-uninitialized", value, lang_mask,
+                                handlers, opts, opts_set, loc, dc);
     }
   free (new_option);
 }