mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-24 12:29:49 +08:00
d5d063d72d
2001-02-23 Jeffrey Oldham <oldham@codesourcery.com> * Makefile.in (resource.o): Add params.h dependence. * params.def (MAX_DELAY_SLOT_LIVE_SEARCH): New parameter. * params.h (MAX_DELAY_SLOT_LIVE_SEARCH): Likewise. * resource.c: Add dependence on params.h. (current_live_regs): Fix explanatory comment. (find_basic_block): Add new parameter to permit limiting search for a BARRIER. (mark_target_live_regs): Add new argument to find_basic_block call. (incr_ticks_for_insn): Likewise. From-SVN: r40001
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/* params.h - Run-time parameters.
|
||
Copyright (C) 2001 Free Software Foundation, Inc.
|
||
Written by Mark Mitchell <mark@codesourcery.com>.
|
||
|
||
This file is part of GNU CC.
|
||
|
||
GNU CC is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2, or (at your option)
|
||
any later version.
|
||
|
||
GNU CC is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with GNU CC; see the file COPYING. If not, write to
|
||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||
Boston, MA 02111-1307, USA.
|
||
|
||
*/
|
||
|
||
/* This module provides a means for setting integral parameters
|
||
dynamically. Instead of encoding magic numbers in various places,
|
||
use this module to organize all the magic numbers in a single
|
||
place. The values of the parameters can be set on the
|
||
command-line, thereby providing a way to control the amount of
|
||
effort spent on particular optimization passes, or otherwise tune
|
||
the behavior of the compiler.
|
||
|
||
Since their values can be set on the command-line, these parameters
|
||
should not be used for non-dynamic memory allocation. */
|
||
|
||
#ifndef PARAMS_H
|
||
#define PARAMS_H
|
||
|
||
/* No parameter shall have this value. */
|
||
|
||
#define INVALID_PARAM_VAL (-1)
|
||
|
||
/* The information associated with each parameter. */
|
||
|
||
typedef struct param_info
|
||
{
|
||
/* The name used with the `--param <name>=<value>' switch to set this
|
||
value. */
|
||
const char *option;
|
||
/* The associated value. */
|
||
int value;
|
||
} param_info;
|
||
|
||
/* An array containing the compiler parameters and their current
|
||
values. */
|
||
|
||
extern param_info *compiler_params;
|
||
|
||
/* Add the N PARAMS to the current list of compiler parameters. */
|
||
|
||
extern void add_params
|
||
PARAMS ((const param_info params[], size_t n));
|
||
|
||
/* Set the VALUE associated with the parameter given by NAME. */
|
||
|
||
extern void set_param_value
|
||
PARAMS ((const char *name, int value));
|
||
|
||
|
||
/* The parameters in use by language-independent code. */
|
||
|
||
typedef enum compiler_param
|
||
{
|
||
#define DEFPARAM(ENUM, OPTION, HELP, DEFAULT) \
|
||
ENUM,
|
||
#include "params.def"
|
||
#undef DEFPARAM
|
||
LAST_PARAM
|
||
} compiler_param;
|
||
|
||
/* The value of the parameter given by ENUM. */
|
||
#define PARAM_VALUE(ENUM) \
|
||
(compiler_params[(int) ENUM].value)
|
||
|
||
/* Macros for the various parameters. */
|
||
#define MAX_INLINE_INSNS \
|
||
PARAM_VALUE (PARAM_MAX_INLINE_INSNS)
|
||
#define MAX_DELAY_SLOT_INSN_SEARCH \
|
||
PARAM_VALUE (PARAM_MAX_DELAY_SLOT_INSN_SEARCH)
|
||
#define MAX_DELAY_SLOT_LIVE_SEARCH \
|
||
PARAM_VALUE (PARAM_MAX_DELAY_SLOT_LIVE_SEARCH)
|
||
|
||
#endif /* PARAMS_H */
|