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-/* params.h - Run-time parameters.
- Copyright (C) 2001, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
- 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 3, 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 COPYING3. If not see
-<http://www.gnu.org/licenses/>. */
-
-/* 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 default value. */
- int default_value;
-
- /* Minimum acceptable value. */
- int min_value;
-
- /* Maximum acceptable value, if greater than minimum */
- int max_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;
-
-/* Returns the number of entries in the table, for the use by plugins. */
-extern size_t get_num_compiler_params (void);
-
-/* Add the N PARAMS to the current list of compiler parameters. */
-
-extern void add_params (const param_info params[], size_t n);
-
-/* Set the VALUE associated with the parameter given by NAME in the
- table PARAMS using PARAMS_SET to indicate which have been
- explicitly set. */
-
-extern void set_param_value (const char *name, int value,
- int *params, int *params_set);
-
-
-/* The parameters in use by language-independent code. */
-
-typedef enum compiler_param
-{
-#define DEFPARAM(enumerator, option, msgid, default, min, max) \
- enumerator,
-#include "params.def"
-#undef DEFPARAM
- LAST_PARAM
-} compiler_param;
-
-/* The value of the parameter given by ENUM. Not an lvalue. */
-#define PARAM_VALUE(ENUM) \
- ((int) global_options.x_param_values[(int) ENUM])
-
-/* Set the value of the parameter given by NUM to VALUE, implicitly,
- if it has not been set explicitly by the user, in the table PARAMS
- using PARAMS_SET to indicate which have been explicitly set. */
-
-extern void maybe_set_param_value (compiler_param num, int value,
- int *params, int *params_set);
-
-/* Set the default value of a parameter given by NUM to VALUE, before
- option processing. */
-
-extern void set_default_param_value (compiler_param num, int value);
-
-/* Note that all parameters have been added and all default values
- set. */
-extern void finish_params (void);
-
-/* Return the default value of parameter NUM. */
-
-extern int default_param_value (compiler_param num);
-
-/* Initialize an array PARAMS with default values of the
- parameters. */
-extern void init_param_values (int *params);
-
-/* Macros for the various parameters. */
-#define STRUCT_REORG_COLD_STRUCT_RATIO \
- PARAM_VALUE (PARAM_STRUCT_REORG_COLD_STRUCT_RATIO)
-#define MAX_INLINE_INSNS_SINGLE \
- PARAM_VALUE (PARAM_MAX_INLINE_INSNS_SINGLE)
-#define MAX_INLINE_INSNS \
- PARAM_VALUE (PARAM_MAX_INLINE_INSNS)
-#define MAX_INLINE_SLOPE \
- PARAM_VALUE (PARAM_MAX_INLINE_SLOPE)
-#define MIN_INLINE_INSNS \
- PARAM_VALUE (PARAM_MIN_INLINE_INSNS)
-#define MAX_INLINE_INSNS_AUTO \
- PARAM_VALUE (PARAM_MAX_INLINE_INSNS_AUTO)
-#define MAX_VARIABLE_EXPANSIONS \
- PARAM_VALUE (PARAM_MAX_VARIABLE_EXPANSIONS)
-#define MIN_VECT_LOOP_BOUND \
- PARAM_VALUE (PARAM_MIN_VECT_LOOP_BOUND)
-#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_INSERTION_RATIO \
- ((size_t) PARAM_VALUE (PARAM_MAX_GCSE_INSERTION_RATIO))
-#define GCSE_AFTER_RELOAD_PARTIAL_FRACTION \
- PARAM_VALUE (PARAM_GCSE_AFTER_RELOAD_PARTIAL_FRACTION)
-#define GCSE_AFTER_RELOAD_CRITICAL_FRACTION \
- PARAM_VALUE (PARAM_GCSE_AFTER_RELOAD_CRITICAL_FRACTION)
-#define GCSE_COST_DISTANCE_RATIO \
- PARAM_VALUE (PARAM_GCSE_COST_DISTANCE_RATIO)
-#define GCSE_UNRESTRICTED_COST \
- PARAM_VALUE (PARAM_GCSE_UNRESTRICTED_COST)
-#define MAX_HOIST_DEPTH \
- PARAM_VALUE (PARAM_MAX_HOIST_DEPTH)
-#define MAX_UNROLLED_INSNS \
- PARAM_VALUE (PARAM_MAX_UNROLLED_INSNS)
-#define MAX_SMS_LOOP_NUMBER \
- PARAM_VALUE (PARAM_MAX_SMS_LOOP_NUMBER)
-#define SMS_MAX_II_FACTOR \
- PARAM_VALUE (PARAM_SMS_MAX_II_FACTOR)
-#define SMS_DFA_HISTORY \
- PARAM_VALUE (PARAM_SMS_DFA_HISTORY)
-#define SMS_LOOP_AVERAGE_COUNT_THRESHOLD \
- PARAM_VALUE (PARAM_SMS_LOOP_AVERAGE_COUNT_THRESHOLD)
-#define INTEGER_SHARE_LIMIT \
- PARAM_VALUE (PARAM_INTEGER_SHARE_LIMIT)
-#define MAX_LAST_VALUE_RTL \
- PARAM_VALUE (PARAM_MAX_LAST_VALUE_RTL)
-#define MIN_VIRTUAL_MAPPINGS \
- PARAM_VALUE (PARAM_MIN_VIRTUAL_MAPPINGS)
-#define VIRTUAL_MAPPINGS_TO_SYMS_RATIO \
- PARAM_VALUE (PARAM_VIRTUAL_MAPPINGS_TO_SYMS_RATIO)
-#define MAX_FIELDS_FOR_FIELD_SENSITIVE \
- ((size_t) PARAM_VALUE (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE))
-#define MAX_SCHED_READY_INSNS \
- PARAM_VALUE (PARAM_MAX_SCHED_READY_INSNS)
-#define PREFETCH_LATENCY \
- PARAM_VALUE (PARAM_PREFETCH_LATENCY)
-#define SIMULTANEOUS_PREFETCHES \
- PARAM_VALUE (PARAM_SIMULTANEOUS_PREFETCHES)
-#define L1_CACHE_SIZE \
- PARAM_VALUE (PARAM_L1_CACHE_SIZE)
-#define L1_CACHE_LINE_SIZE \
- PARAM_VALUE (PARAM_L1_CACHE_LINE_SIZE)
-#define L2_CACHE_SIZE \
- PARAM_VALUE (PARAM_L2_CACHE_SIZE)
-#define USE_CANONICAL_TYPES \
- PARAM_VALUE (PARAM_USE_CANONICAL_TYPES)
-#define IRA_MAX_LOOPS_NUM \
- PARAM_VALUE (PARAM_IRA_MAX_LOOPS_NUM)
-#define IRA_MAX_CONFLICT_TABLE_SIZE \
- PARAM_VALUE (PARAM_IRA_MAX_CONFLICT_TABLE_SIZE)
-#define IRA_LOOP_RESERVED_REGS \
- PARAM_VALUE (PARAM_IRA_LOOP_RESERVED_REGS)
-#define SWITCH_CONVERSION_BRANCH_RATIO \
- PARAM_VALUE (PARAM_SWITCH_CONVERSION_BRANCH_RATIO)
-#define LOOP_INVARIANT_MAX_BBS_IN_LOOP \
- PARAM_VALUE (PARAM_LOOP_INVARIANT_MAX_BBS_IN_LOOP)
-#define SLP_MAX_INSNS_IN_BB \
- PARAM_VALUE (PARAM_SLP_MAX_INSNS_IN_BB)
-#define MIN_INSN_TO_PREFETCH_RATIO \
- PARAM_VALUE (PARAM_MIN_INSN_TO_PREFETCH_RATIO)
-#define PREFETCH_MIN_INSN_TO_MEM_RATIO \
- PARAM_VALUE (PARAM_PREFETCH_MIN_INSN_TO_MEM_RATIO)
-#define MIN_NONDEBUG_INSN_UID \
- PARAM_VALUE (PARAM_MIN_NONDEBUG_INSN_UID)
-#endif /* ! GCC_PARAMS_H */