/* params.h - Run-time parameters.
- Copyright (C) 2001, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+ 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
+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
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.
-
-*/
+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,
/* The name used with the `--param <name>=<value>' switch to set this
value. */
const char *const option;
- /* The associated value. */
- int value;
+
+ /* 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;
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. */
+/* 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);
+extern void set_param_value (const char *name, int value,
+ int *params, int *params_set);
\f
/* The parameters in use by language-independent code. */
typedef enum compiler_param
{
-#define DEFPARAM(enumerator, option, msgid, default) \
+#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. */
+/* The value of the parameter given by ENUM. Not an lvalue. */
#define PARAM_VALUE(ENUM) \
- (compiler_params[(int) ENUM].value)
+ ((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_MIN_INLINE_INSNS)
#define MAX_INLINE_INSNS_AUTO \
PARAM_VALUE (PARAM_MAX_INLINE_INSNS_AUTO)
-#define MAX_INLINE_INSNS_RTL \
- PARAM_VALUE (PARAM_MAX_INLINE_INSNS_RTL)
+#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_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)
+#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 */
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