re PR middle-end/48087 (-Wall -Werror adds warnings over and above those generated by -Wall)

	PR middle-end/48087
	* diagnostic.def (DK_WERROR): New kind.
	* diagnostic.h (werrorcount): Define.
	* diagnostic.c (diagnostic_report_diagnostic): For DK_WARNING
	promoted to DK_ERROR, increment DK_WERROR counter instead of
	DK_ERROR counter.
	* toplev.c (toplev_main): Call print_ignored_options even if
	just werrorcount is non-zero.  Exit with FATAL_EXIT_CODE
	even if just werrorcount is non-zero.

	* pt.c (convert_nontype_argument): Count werrorcount as warnings.
	* call.c (build_temp): Likewise.
	* method.c (synthesize_method): Likewise.
	* typeck.c (convert_for_initialization): Likewise.

From-SVN: r196887

gcc/ChangeLog

 2013-03-21  Jakub Jelinek  <jakub@redhat.com>
 
+	PR middle-end/48087
+	* diagnostic.def (DK_WERROR): New kind.
+	* diagnostic.h (werrorcount): Define.
+	* diagnostic.c (diagnostic_report_diagnostic): For DK_WARNING
+	promoted to DK_ERROR, increment DK_WERROR counter instead of
+	DK_ERROR counter.
+	* toplev.c (toplev_main): Call print_ignored_options even if
+	just werrorcount is non-zero.  Exit with FATAL_EXIT_CODE
+	even if just werrorcount is non-zero.
+
 	PR debug/55608
 	* dwarf2out.c (tree_add_const_value_attribute): Call ggc_free (array)
 	on failure.

gcc/cp/ChangeLog

+2013-03-21  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/48087
+	* pt.c (convert_nontype_argument): Count werrorcount as warnings.
+	* call.c (build_temp): Likewise.
+	* method.c (synthesize_method): Likewise.
+	* typeck.c (convert_for_initialization): Likewise.
+
 2013-03-21  Marc Glisse  <marc.glisse@inria.fr>
 
 	* call.c (build_conditional_expr_1): Fold VEC_COND_EXPR.

gcc/cp/call.c

@@ -5709,12 +5709,12 @@ build_temp (tree expr, tree type, int flags,
   int savew, savee;
   vec<tree, va_gc> *args;
 
-  savew = warningcount, savee = errorcount;
+  savew = warningcount + werrorcount, savee = errorcount;
   args = make_tree_vector_single (expr);
   expr = build_special_member_call (NULL_TREE, complete_ctor_identifier,
 				    &args, type, flags, complain);
   release_tree_vector (args);
-  if (warningcount > savew)
+  if (warningcount + werrorcount > savew)
     *diagnostic_kind = DK_WARNING;
   else if (errorcount > savee)
     *diagnostic_kind = DK_ERROR;

gcc/cp/method.c

@@ -755,7 +755,7 @@ synthesize_method (tree fndecl)
   tree stmt;
   location_t save_input_location = input_location;
   int error_count = errorcount;
-  int warning_count = warningcount;
+  int warning_count = warningcount + werrorcount;
 
   /* Reset the source location, we might have been previously
      deferred, and thus have saved where we were first needed.  */
@@ -817,7 +817,7 @@ synthesize_method (tree fndecl)
 
   pop_deferring_access_checks ();
 
-  if (error_count != errorcount || warning_count != warningcount)
+  if (error_count != errorcount || warning_count != warningcount + werrorcount)
     inform (input_location, "synthesized method %qD first required here ",
 	    fndecl);
 }

gcc/cp/pt.c

@@ -5601,12 +5601,12 @@ convert_nontype_argument (tree type, tree expr, tsubst_flags_t complain)
 	{
 	  if (complain & tf_error)
 	    {
-	      int errs = errorcount, warns = warningcount;
+	      int errs = errorcount, warns = warningcount + werrorcount;
 	      if (processing_template_decl
 		  && !require_potential_constant_expression (expr))
 		return NULL_TREE;
 	      expr = cxx_constant_value (expr);
-	      if (errorcount > errs || warningcount > warns)
+	      if (errorcount > errs || warningcount + werrorcount > warns)
 		inform (EXPR_LOC_OR_HERE (expr),
 			"in template argument for type %qT ", type);
 	      if (expr == error_mark_node)

gcc/cp/typeck.c

@@ -7977,11 +7977,11 @@ convert_for_initialization (tree exp, tree type, tree rhs, int flags,
       int savew = 0, savee = 0;
 
       if (fndecl)
-	savew = warningcount, savee = errorcount;
+	savew = warningcount + werrorcount, savee = errorcount;
       rhs = initialize_reference (type, rhs, flags, complain);
       if (fndecl)
 	{
-	  if (warningcount > savew)
+	  if (warningcount + werrorcount > savew)
 	    warning (0, "in passing argument %P of %q+D", parmnum, fndecl);
 	  else if (errorcount > savee)
 	    error ("in passing argument %P of %q+D", parmnum, fndecl);

gcc/diagnostic.c

@@ -729,7 +729,10 @@ diagnostic_report_diagnostic (diagnostic_context *context,
 				    diagnostic->message.format_spec,
 				    diagnostic->message.args_ptr);
     }
-  ++diagnostic_kind_count (context, diagnostic->kind);
+  if (diagnostic->kind == DK_ERROR && orig_diag_kind == DK_WARNING)
+    ++diagnostic_kind_count (context, DK_WERROR);
+  else
+    ++diagnostic_kind_count (context, diagnostic->kind);
 
   saved_format_spec = diagnostic->message.format_spec;
   if (context->show_option_requested)

gcc/diagnostic.def

@@ -42,4 +42,6 @@ DEFINE_DIAGNOSTIC_KIND (DK_DEBUG, "debug: ")
 prefix does not matter.  */
 DEFINE_DIAGNOSTIC_KIND (DK_PEDWARN, "pedwarn: ")
 DEFINE_DIAGNOSTIC_KIND (DK_PERMERROR, "permerror: ")
-
+/* This one is just for counting DK_WARNING promoted to DK_ERROR
+   due to -Werror and -Werror=warning.  */
+DEFINE_DIAGNOSTIC_KIND (DK_WERROR, "error: ")

gcc/diagnostic.h

@@ -240,6 +240,8 @@ extern diagnostic_context *global_dc;
 #define errorcount diagnostic_kind_count (global_dc, DK_ERROR)
 /* Similarly, but for warnings.  */
 #define warningcount diagnostic_kind_count (global_dc, DK_WARNING)
+/* Similarly, but for warnings promoted to errors.  */
+#define werrorcount diagnostic_kind_count (global_dc, DK_WERROR)
 /* Similarly, but for sorrys.  */
 #define sorrycount diagnostic_kind_count (global_dc, DK_SORRY)
 

gcc/toplev.c

@@ -1951,7 +1951,7 @@ toplev_main (int argc, char **argv)
   if (!exit_after_options)
     do_compile ();
 
-  if (warningcount || errorcount)
+  if (warningcount || errorcount || werrorcount)
     print_ignored_options ();
   diagnostic_finish (global_dc);
 
@@ -1960,7 +1960,7 @@ toplev_main (int argc, char **argv)
 
   finalize_plugins ();
   location_adhoc_data_fini (line_table);
-  if (seen_error ())
+  if (seen_error () || werrorcount)
     return (FATAL_EXIT_CODE);
 
   return (SUCCESS_EXIT_CODE);