mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-19 10:53:58 +00:00
100 lines
3.0 KiB
C
100 lines
3.0 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 GCC.
|
||
|
||
GCC 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.
|
||
|
||
GCC 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 GCC; 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 GCC_PARAMS_H
|
||
#define GCC_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 *const option;
|
||
/* The associated value. */
|
||
int value;
|
||
/* A short description of the option. */
|
||
const char *const help;
|
||
} 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(enumerator, option, msgid, default) \
|
||
enumerator,
|
||
#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)
|
||
#define MAX_PENDING_LIST_LENGTH \
|
||
PARAM_VALUE (PARAM_MAX_PENDING_LIST_LENGTH)
|
||
#define MAX_GCSE_MEMORY \
|
||
((size_t) PARAM_VALUE (PARAM_MAX_GCSE_MEMORY))
|
||
#define MAX_GCSE_PASSES \
|
||
PARAM_VALUE (PARAM_MAX_GCSE_PASSES)
|
||
#endif /* ! GCC_PARAMS_H */
|