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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/params.h | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/params.h')
-rw-r--r-- | gcc-4.9/gcc/params.h | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/params.h b/gcc-4.9/gcc/params.h new file mode 100644 index 000000000..0d6daa205 --- /dev/null +++ b/gcc-4.9/gcc/params.h @@ -0,0 +1,236 @@ +/* params.h - Run-time parameters. + Copyright (C) 2001-2014 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 *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; +}; + +/* 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 +{ +#define DEFPARAM(enumerator, option, msgid, default, min, max) \ + enumerator, +#include "params.def" +#undef DEFPARAM + LAST_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); + +/* 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); + +/* 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 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 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_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) + +#endif /* ! GCC_PARAMS_H */ |