+2010-10-11 Joseph Myers <joseph@codesourcery.com>
+
+ * params.c (set_param_value_internal): New.
+ (set_param_value): Use set_param_value_internal.
+ (maybe_set_param_value, set_default_param_value): New.
+ * params.h (PARAM_VALUE, PARAM_SET_P): Make into rvalues.
+ (maybe_set_param_value, set_default_param_value): Declare.
+ * config/arm/arm.c (arm_option_override): Use
+ maybe_set_param_value.
+ * config/i386/i386.c (ix86_option_override_internal): Use
+ maybe_set_param_value.
+ * config/ia64/ia64.c (ia64_option_default_params,
+ TARGET_OPTION_DEFAULT_PARAMS): New.
+ (ia64_option_optimization): Move some code to
+ ia64_option_default_params.
+ * config/picochip/picochip.c (picochip_option_override): Use
+ maybe_set_param_value.
+ * config/rs6000/rs6000.c (rs6000_option_default_params,
+ TARGET_OPTION_DEFAULT_PARAMS): New.
+ (rs6000_option_override_internal): Use maybe_set_param_value.
+ (rs6000_option_optimization): Move some code to
+ rs6000_option_default_params.
+ * config/s390/s390.c (s390_option_override): Use
+ maybe_set_param_value.
+ * config/sh/sh.c (sh_option_default_params,
+ TARGET_OPTION_DEFAULT_PARAMS): New.
+ (sh_option_optimization): Move some code to
+ sh_option_default_params.
+ * config/sparc/sparc.c (sparc_option_override): Use
+ maybe_set_param_value.
+ * config/spu/spu.c (spu_option_default_params,
+ TARGET_OPTION_DEFAULT_PARAMS): New.
+ (spu_option_optimization): Move some code to
+ spu_option_default_params.
+ (spu_option_override): Use maybe_set_param_value.
+ * doc/tm.texi.in (TARGET_OPTION_DEFAULT_PARAMS): New @hook.
+ * doc/tm.texi: Regenerate.
+ * ggc-common.c (init_ggc_heuristics): Use set_default_param_value.
+ * opts.c (init_options_once): Use PARAM_VALUE not direct access to
+ compiler_params.
+ (default_options_optimization): Use maybe_set_param_value.
+ (finish_options): Use maybe_set_param_value.
+ * target.def (target_option.default_params): New hook.
+ * toplev.c (general_init): Call
+ targetm.target_option.default_params.
+