#include "params.def"

Include dependency graph for params.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	param_info

Macros
#define	INVALID_PARAM_VAL (-1)
#define	DEFPARAM(enumerator, option, msgid, default, min, max) enumerator,
#define	PARAM_VALUE(ENUM) ((int) global_options.x_param_values[(int) ENUM])
#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)
#define	MAX_STORES_TO_SINK PARAM_VALUE (PARAM_MAX_STORES_TO_SINK)
#define	ALLOW_LOAD_DATA_RACES PARAM_VALUE (PARAM_ALLOW_LOAD_DATA_RACES)
#define	ALLOW_STORE_DATA_RACES PARAM_VALUE (PARAM_ALLOW_STORE_DATA_RACES)
#define	ALLOW_PACKED_LOAD_DATA_RACES PARAM_VALUE (PARAM_ALLOW_PACKED_LOAD_DATA_RACES)
#define	ALLOW_PACKED_STORE_DATA_RACES PARAM_VALUE (PARAM_ALLOW_PACKED_STORE_DATA_RACES)

Typedefs
typedef struct param_info	param_info
typedef enum compiler_param	compiler_param

Enumerations
enum	compiler_param { DEFPARAM, DEFPARAM }

Functions
size_t	get_num_compiler_params (void)
void	add_params (const param_info params[], size_t n)
void	set_param_value (const char name, int value, int params, int *params_set)
void	maybe_set_param_value (compiler_param num, int value, int params, int params_set)
void	set_default_param_value (compiler_param num, int value)
void	global_init_params (void)
void	finish_params (void)
int	default_param_value (compiler_param num)
void	init_param_values (int *params)

Variables
param_info *	compiler_params

Macro Definition Documentation

#define ALLOW_LOAD_DATA_RACES PARAM_VALUE (PARAM_ALLOW_LOAD_DATA_RACES)

#define ALLOW_PACKED_LOAD_DATA_RACES PARAM_VALUE (PARAM_ALLOW_PACKED_LOAD_DATA_RACES)

#define ALLOW_PACKED_STORE_DATA_RACES PARAM_VALUE (PARAM_ALLOW_PACKED_STORE_DATA_RACES)

#define ALLOW_STORE_DATA_RACES PARAM_VALUE (PARAM_ALLOW_STORE_DATA_RACES)

#define DEFPARAM	(	enumerator,
		option,
		msgid,
		default,
		min,
		max
	)	enumerator,

#define GCSE_AFTER_RELOAD_CRITICAL_FRACTION PARAM_VALUE (PARAM_GCSE_AFTER_RELOAD_CRITICAL_FRACTION)

#define GCSE_AFTER_RELOAD_PARTIAL_FRACTION PARAM_VALUE (PARAM_GCSE_AFTER_RELOAD_PARTIAL_FRACTION)

#define GCSE_COST_DISTANCE_RATIO PARAM_VALUE (PARAM_GCSE_COST_DISTANCE_RATIO)

#define GCSE_UNRESTRICTED_COST PARAM_VALUE (PARAM_GCSE_UNRESTRICTED_COST)

#define INTEGER_SHARE_LIMIT PARAM_VALUE (PARAM_INTEGER_SHARE_LIMIT)

Referenced by int_cst_hash_eq().

#define INVALID_PARAM_VAL (-1)

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. No parameter shall have this value.

#define IRA_LOOP_RESERVED_REGS PARAM_VALUE (PARAM_IRA_LOOP_RESERVED_REGS)

#define IRA_MAX_CONFLICT_TABLE_SIZE PARAM_VALUE (PARAM_IRA_MAX_CONFLICT_TABLE_SIZE)

Referenced by build_conflict_bit_table().

#define IRA_MAX_LOOPS_NUM PARAM_VALUE (PARAM_IRA_MAX_LOOPS_NUM)

#define L1_CACHE_LINE_SIZE PARAM_VALUE (PARAM_L1_CACHE_LINE_SIZE)

#define L1_CACHE_SIZE PARAM_VALUE (PARAM_L1_CACHE_SIZE)

#define L2_CACHE_SIZE PARAM_VALUE (PARAM_L2_CACHE_SIZE)

#define LOOP_INVARIANT_MAX_BBS_IN_LOOP PARAM_VALUE (PARAM_LOOP_INVARIANT_MAX_BBS_IN_LOOP)

#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)

Referenced by return_insn_p().

#define MAX_FIELDS_FOR_FIELD_SENSITIVE ((size_t) PARAM_VALUE (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE))

#define MAX_GCSE_INSERTION_RATIO ((size_t) PARAM_VALUE (PARAM_MAX_GCSE_INSERTION_RATIO))

#define MAX_GCSE_MEMORY ((size_t) PARAM_VALUE (PARAM_MAX_GCSE_MEMORY))

Referenced by print_ldst_list().

#define MAX_HOIST_DEPTH PARAM_VALUE (PARAM_MAX_HOIST_DEPTH)

#define MAX_INLINE_INSNS PARAM_VALUE (PARAM_MAX_INLINE_INSNS)

#define MAX_INLINE_INSNS_AUTO PARAM_VALUE (PARAM_MAX_INLINE_INSNS_AUTO)

#define MAX_INLINE_INSNS_SINGLE PARAM_VALUE (PARAM_MAX_INLINE_INSNS_SINGLE)

Macros for the various parameters.

#define MAX_INLINE_SLOPE PARAM_VALUE (PARAM_MAX_INLINE_SLOPE)

#define MAX_LAST_VALUE_RTL PARAM_VALUE (PARAM_MAX_LAST_VALUE_RTL)

#define MAX_PENDING_LIST_LENGTH PARAM_VALUE (PARAM_MAX_PENDING_LIST_LENGTH)

#define MAX_SCHED_READY_INSNS PARAM_VALUE (PARAM_MAX_SCHED_READY_INSNS)

#define MAX_SMS_LOOP_NUMBER PARAM_VALUE (PARAM_MAX_SMS_LOOP_NUMBER)

#define MAX_STORES_TO_SINK PARAM_VALUE (PARAM_MAX_STORES_TO_SINK)

#define MAX_UNROLLED_INSNS PARAM_VALUE (PARAM_MAX_UNROLLED_INSNS)

#define MAX_VARIABLE_EXPANSIONS PARAM_VALUE (PARAM_MAX_VARIABLE_EXPANSIONS)

#define MIN_INLINE_INSNS PARAM_VALUE (PARAM_MIN_INLINE_INSNS)

#define MIN_INSN_TO_PREFETCH_RATIO PARAM_VALUE (PARAM_MIN_INSN_TO_PREFETCH_RATIO)

#define MIN_NONDEBUG_INSN_UID PARAM_VALUE (PARAM_MIN_NONDEBUG_INSN_UID)

Referenced by mark_label_nuses().

#define MIN_VECT_LOOP_BOUND PARAM_VALUE (PARAM_MIN_VECT_LOOP_BOUND)

#define MIN_VIRTUAL_MAPPINGS PARAM_VALUE (PARAM_MIN_VIRTUAL_MAPPINGS)

#define PARAM_VALUE ( ENUM ) ((int) global_options.x_param_values[(int) ENUM])

The value of the parameter given by ENUM. Not an lvalue.

Referenced by cgraph_maybe_hot_edge_p(), cselib_invalidate_regno(), ddr_consistent_p(), new_stridx(), optimize_loop_nest_for_speed_p(), reorder_basic_blocks(), reversed_condition(), subst_reloads(), tree_ssa_unswitch_loops(), and tree_unswitch_single_loop().

#define PREFETCH_LATENCY PARAM_VALUE (PARAM_PREFETCH_LATENCY)

#define PREFETCH_MIN_INSN_TO_MEM_RATIO PARAM_VALUE (PARAM_PREFETCH_MIN_INSN_TO_MEM_RATIO)

#define SIMULTANEOUS_PREFETCHES PARAM_VALUE (PARAM_SIMULTANEOUS_PREFETCHES)

#define SLP_MAX_INSNS_IN_BB PARAM_VALUE (PARAM_SLP_MAX_INSNS_IN_BB)

#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 SMS_MAX_II_FACTOR PARAM_VALUE (PARAM_SMS_MAX_II_FACTOR)

#define SWITCH_CONVERSION_BRANCH_RATIO PARAM_VALUE (PARAM_SWITCH_CONVERSION_BRANCH_RATIO)

#define USE_CANONICAL_TYPES PARAM_VALUE (PARAM_USE_CANONICAL_TYPES)

#define VIRTUAL_MAPPINGS_TO_SYMS_RATIO PARAM_VALUE (PARAM_VIRTUAL_MAPPINGS_TO_SYMS_RATIO)

Typedef Documentation

typedef enum compiler_param compiler_param

The parameters in use by language-independent code.

typedef struct param_info param_info

The information associated with each parameter.

Enumeration Type Documentation

enum compiler_param

The parameters in use by language-independent code.

Enumerator:

DEFPARAM

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 file contains definitions for language-independent parameters. The DEFPARAM macro takes 6 arguments:

The enumeral corresponding to this parameter.

The name that can be used to set this parameter using the command-line option `–param <name>=

'.

A help string explaining how the parameter is used.

A default value for the parameter.

The minimum acceptable value for the parameter.

The maximum acceptable value for the parameter (if greater than the minimum).

Be sure to add an entry to invoke.texi summarizing the parameter. When branch is predicted to be taken with probability lower than this threshold (in percent), then it is considered well predictable.

DEFPARAM

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 file contains definitions for language-independent parameters. The DEFPARAM macro takes 6 arguments:

The enumeral corresponding to this parameter.

The name that can be used to set this parameter using the command-line option `–param <name>=

'.

A help string explaining how the parameter is used.

A default value for the parameter.

The minimum acceptable value for the parameter.

The maximum acceptable value for the parameter (if greater than the minimum).

Be sure to add an entry to invoke.texi summarizing the parameter. When branch is predicted to be taken with probability lower than this threshold (in percent), then it is considered well predictable.

Function Documentation

void add_params	(	const param_info	params[],
		size_t	n
	)

Add the N PARAMS to the current list of compiler parameters.

int default_param_value ( compiler_param num )

Return the default value of parameter NUM.

void finish_params ( void )

Note that all parameters have been added and all default values set.

References gcc_assert, and params_finished.

size_t get_num_compiler_params ( void )

Returns the number of entries in the table, for the use by plugins.

Return the current value of num_compiler_params, for the benefit of plugins that use parameters as features.

void global_init_params ( void )

Add all parameters and default values that can be set in both the driver and the compiler proper.

References params_finished.

void init_param_values ( int * params )

Initialize an array PARAMS with default values of the parameters.

void maybe_set_param_value	(	compiler_param	num,
		int	value,
		int *	params,
		int *	params_set
	)

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.

Set the value of the parameter given by NUM to VALUE in PARAMS and PARAMS_SET, implicitly, if it has not been set explicitly by the user.

void set_default_param_value	(	compiler_param	num,
		int	value
	)

Set the default value of a parameter given by NUM to VALUE, before option processing.

void set_param_value	(	const char *	name,
		int	value,
		int *	params,
		int *	params_set
	)

Set the VALUE associated with the parameter given by NAME in the table PARAMS using PARAMS_SET to indicate which have been explicitly set.

Set the VALUE associated with the parameter given by NAME in PARAMS and PARAMS_SET.

 Make sure nobody tries to set a parameter to an invalid value.

 Scan the parameter table to find a matching entry.

 If we didn't find this parameter, issue an error message.

Variable Documentation

param_info* compiler_params

An array containing the compiler parameters and their current values.

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/. An array containing the compiler parameters and their current values.

Referenced by wrap_help().

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation