| /* params.h - Run-time parameters. |
| Copyright (C) 2001-2019 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. */ |
| |
| struct param_info |
| { |
| /* The name used with the `--param <name>=<value>' switch to set this |
| value. */ |
| const char *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 *help; |
| |
| /* The optional names corresponding to the values. */ |
| const char **value_names; |
| }; |
| |
| /* 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. */ |
| |
| enum compiler_param |
| { |
| #include "params.list" |
| LAST_PARAM |
| }; |
| |
| extern bool find_param (const char *, enum compiler_param *); |
| extern const char *find_param_fuzzy (const char *name); |
| extern bool param_string_value_p (enum compiler_param, const char *, int *); |
| |
| /* 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); |
| |
| /* Add all parameters and default values that can be set in both the |
| driver and the compiler proper. */ |
| |
| extern void global_init_params (void); |
| |
| /* Note that all parameters have been added and all default values |
| set. */ |
| extern void finish_params (void); |
| |
| /* Reset all state in params.c */ |
| |
| extern void params_c_finalize (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 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 PREFETCH_DYNAMIC_STRIDES \ |
| PARAM_VALUE (PARAM_PREFETCH_DYNAMIC_STRIDES) |
| #define PREFETCH_MINIMUM_STRIDE \ |
| PARAM_VALUE (PARAM_PREFETCH_MINIMUM_STRIDE) |
| #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 LRA_MAX_CONSIDERED_RELOAD_PSEUDOS \ |
| PARAM_VALUE (PARAM_LRA_MAX_CONSIDERED_RELOAD_PSEUDOS) |
| #define LRA_INHERITANCE_EBB_PROBABILITY_CUTOFF \ |
| PARAM_VALUE (PARAM_LRA_INHERITANCE_EBB_PROBABILITY_CUTOFF) |
| #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) |
| #define ASAN_STACK \ |
| PARAM_VALUE (PARAM_ASAN_STACK) |
| #define ASAN_PROTECT_ALLOCAS \ |
| PARAM_VALUE (PARAM_ASAN_PROTECT_ALLOCAS) |
| #define ASAN_GLOBALS \ |
| PARAM_VALUE (PARAM_ASAN_GLOBALS) |
| #define ASAN_INSTRUMENT_READS \ |
| PARAM_VALUE (PARAM_ASAN_INSTRUMENT_READS) |
| #define ASAN_INSTRUMENT_WRITES \ |
| PARAM_VALUE (PARAM_ASAN_INSTRUMENT_WRITES) |
| #define ASAN_MEMINTRIN \ |
| PARAM_VALUE (PARAM_ASAN_MEMINTRIN) |
| #define ASAN_USE_AFTER_RETURN \ |
| PARAM_VALUE (PARAM_ASAN_USE_AFTER_RETURN) |
| #define ASAN_INSTRUMENTATION_WITH_CALL_THRESHOLD \ |
| PARAM_VALUE (PARAM_ASAN_INSTRUMENTATION_WITH_CALL_THRESHOLD) |
| #define ASAN_PARAM_USE_AFTER_SCOPE_DIRECT_EMISSION_THRESHOLD \ |
| ((unsigned) PARAM_VALUE (PARAM_USE_AFTER_SCOPE_DIRECT_EMISSION_THRESHOLD)) |
| |
| #endif /* ! GCC_PARAMS_H */ |
