options.texi (Var): Document effects of Defer.

	* doc/options.texi (Var): Document effects of Defer.
	(Defer): Document.
	* opt-functions.awk (var_type, var_set): Handle deferred options.
	* opts-common.c (set_option): Handle CLVC_DEFER.
	* common.opt (fcall-saved-, fcall-used-, fdump-, ffixed-,
	fplugin=, fplugin-arg-, fstack-limit, fstack-limit-register=,
	fstack-limit-symbol=): Mark as deferred.
	* opts.c: Don't include rtl.h, ggc.h, output.h, tree-pass.h or
	plugin.h.
	(print_filtered_help): Don't report state of CLVC_DEFER options.
	(common_handle_option): Move code for OPT_fcall_used_,
	OPT_fcall_saved_, OPT_fdump_, OPT_ffixed_, OPT_fplugin_,
	OPT_fplugin_arg_, OPT_fstack_limit, OPT_fstack_limit_register_ and
	OPT_fstack_limit_symbol_ to opts-global.c.
	(option_enabled, get_option_state): Handle CLVC_DEFER.
	* opts.h: Include vec.h.
	(enum cl_var_type): Add CLVC_DEFER.
	(cl_deferred_option): Define type and vectors.
	(handle_common_deferred_options): Declare.
	* opts-global.c: New.
	* toplev.c (toplev_main): Call handle_common_deferred_options
	* Makefile.in (OPTS_H): Include $(VEC_H).
	(OBJS-common): Include opts-global.o.
	(opts.o): Update dependencies.
	(opts-global.o): Add dependencies.

From-SVN: r166942

1 files changed, 21 insertions, 1 deletions

diff --git a/gcc/opts.h b/gcc/opts.h
index 00422b6..9bbbced 100644
--- a/gcc/opts.h
+++ b/gcc/opts.h
@@ -22,6 +22,7 @@ along with GCC; see the file COPYING3.  If not see
 #define GCC_OPTS_H
 
 #include "input.h"
+#include "vec.h"
 
 /* Specifies how a switch's VAR_VALUE relates to its FLAG_VAR.  */
 enum cl_var_type {
@@ -39,7 +40,11 @@ enum cl_var_type {
 
   /* The switch takes a string argument and FLAG_VAR points to that
      argument.  */
-  CLVC_STRING
+  CLVC_STRING,
+
+  /* The switch should be stored in the VEC pointed to by FLAG_VAR for
+     later processing.  */
+  CLVC_DEFER
 };
 
 struct cl_option
@@ -158,6 +163,20 @@ struct cl_decoded_option
   int errors;
 };
 
+/* Structure describing an option deferred for handling after the main
+   option handlers.  */
+
+typedef struct
+{
+  /* Elements from struct cl_decoded_option used for deferred
+     options.  */
+  size_t opt_index;
+  const char *arg;
+  int value;
+} cl_deferred_option;
+DEF_VEC_O(cl_deferred_option);
+DEF_VEC_ALLOC_O(cl_deferred_option,heap);
+
 /* Structure describing a single option-handling callback.  */
 
 struct cl_option_handler_func
@@ -264,4 +283,5 @@ extern void control_warning_option (unsigned int opt_index, int kind,
 				    struct gcc_options *opts_set,
 				    diagnostic_context *dc);
 extern void print_ignored_options (void);
+extern void handle_common_deferred_options (void);
 #endif