2 * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * File name: ir/ir/irflag.c
23 * Purpose: Flags to control optimizations.
24 * Author: Christian Schaefer, Goetz Lindenmaier
28 * Copyright: (c) 1999-2003 Universität Karlsruhe
38 #include <libcore/lc_opts.h>
41 #include "firm_common.h"
45 /* DISABLE - don't do this optimization
46 ENABLE - lets see, if there is a better graph */
50 #define FLAG(name, value, def) (irf_##name & def) |
51 #define E_FLAG(name, value, def) FLAG(name, value, def)
52 #define I_FLAG(name, value, def) FLAG(name, value, def)
54 optimization_state_t libFIRM_opt =
55 #include "irflag_t.def"
63 /* verbose is always off on default */
64 optimization_state_t libFIRM_verb = 0;
66 /** The Firm verbosity level */
67 int firm_verbosity_level;
69 /* an external flag can be set and get from outside */
70 #define E_FLAG(name, value, def) \
71 void set_opt_##name(int flag) { \
72 if (flag) libFIRM_opt |= irf_##name; \
73 else libFIRM_opt &= ~irf_##name; \
75 void set_opt_##name##_verbose(int flag) { \
76 if (flag) libFIRM_verb |= irf_##name; \
77 else libFIRM_verb &= ~irf_##name; \
79 int (get_opt_##name)(void) { \
80 return _get_opt_##name(); \
83 /* an internal flag can only be set from outside */
84 #define I_FLAG(name, value, def) \
85 void set_opt_##name(int flag) { \
86 if (flag) libFIRM_opt |= irf_##name; \
87 else libFIRM_opt &= ~irf_##name; \
89 void set_opt_##name##_verbose(int flag) { \
90 if (flag) libFIRM_verb |= irf_##name; \
91 else libFIRM_verb &= ~irf_##name; \
95 #include "irflag_t.def"
100 /* for compatibility reasons */
101 void set_optimize(int value) {
102 if (value) libFIRM_opt |= irf_optimize;
103 else libFIRM_opt &= ~irf_optimize;
106 int (get_optimize)(void) {
107 return get_opt_optimize();
110 void set_opt_control_flow(int value)
112 set_opt_control_flow_straightening(value);
113 set_opt_control_flow_weak_simplification(value);
114 set_opt_control_flow_strong_simplification(value);
117 void set_firm_verbosity (int value) {
118 firm_verbosity_level = value;
121 int (get_firm_verbosity) (void) {
122 return _get_firm_verbosity();
125 /* Save the current optimization state. */
126 void save_optimization_state(optimization_state_t *state)
128 *state = libFIRM_opt;
131 /* Restore the current optimization state. */
132 void restore_optimization_state(const optimization_state_t *state)
134 libFIRM_opt = *state;
137 /* Switches ALL optimizations off */
138 void all_optimizations_off(void)
144 /* only for debugging */
145 void firm_show_flags(FILE *f) {
148 printf("Firm optimization state:\n");
149 #define E_FLAG(name, value, def) printf(" %-20s = %s\n", #name, get_opt_##name() ? "ON" : "OFF");
150 #define I_FLAG(name, value, def) printf(" %-20s = %s\n", #name, get_opt_##name() ? "ON" : "OFF");
151 #include "irflag_t.def"
159 static const lc_opt_table_entry_t firm_flags[] = {
160 #define I_FLAG(name, val, def) LC_OPT_ENT_BIT(#name, #name, &libFIRM_opt, (1 << val)),
161 #define E_FLAG(name, val, def) LC_OPT_ENT_BIT(#name, #name, &libFIRM_opt, (1 << val)),
162 #include "irflag_t.def"
169 void firm_init_flags(void)
172 lc_opt_entry_t *grp = lc_opt_get_grp(firm_opt_get_root(), "opt");
173 lc_opt_add_table(grp, firm_flags);
177 firm_verification_t opt_do_node_verification = FIRM_VERIFICATION_ON;
179 void do_node_verification(firm_verification_t mode) {
180 opt_do_node_verification = mode;