2 * Copyright (C) 1995-2008 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 * @brief Flags to control optimizations.
23 * @author Christian Schaefer, Goetz Lindenmaier
33 #include <libcore/lc_opts.h>
36 #include "firm_common.h"
40 /* DISABLE - don't do this optimization
41 ENABLE - lets see, if there is a better graph */
45 #define FLAG(name, value, def) (irf_##name & def) |
46 #define E_FLAG(name, value, def) FLAG(name, value, def)
47 #define I_FLAG(name, value, def) FLAG(name, value, def)
48 #define R_FLAG(name, value)
50 optimization_state_t libFIRM_opt =
51 #include "irflag_t.def"
59 /** The bitset of currently running phases. */
60 optimization_state_t libFIRM_running = 0;
62 /* verbose is always off on default */
63 optimization_state_t libFIRM_verb = 0;
65 /** The Firm verbosity level */
66 int firm_verbosity_level;
68 /* an external flag can be set and get from outside */
69 #define E_FLAG(name, value, def) \
70 void set_opt_##name(int flag) { \
71 if (flag) libFIRM_opt |= irf_##name; \
72 else libFIRM_opt &= ~irf_##name; \
74 void set_opt_##name##_verbose(int flag) { \
75 if (flag) libFIRM_verb |= irf_##name; \
76 else libFIRM_verb &= ~irf_##name; \
78 int (get_opt_##name)(void) { \
79 return _get_opt_##name(); \
82 /* an internal flag can only be set from outside */
83 #define I_FLAG(name, value, def) \
84 void set_opt_##name(int flag) { \
85 if (flag) libFIRM_opt |= irf_##name; \
86 else libFIRM_opt &= ~irf_##name; \
88 void set_opt_##name##_verbose(int flag) { \
89 if (flag) libFIRM_verb |= irf_##name; \
90 else libFIRM_verb &= ~irf_##name; \
93 #define R_FLAG(name, value)
96 #include "irflag_t.def"
102 /* for compatibility reasons */
103 void set_optimize(int value) {
104 if (value) libFIRM_opt |= irf_optimize;
105 else libFIRM_opt &= ~irf_optimize;
108 int (get_optimize)(void) {
109 return get_opt_optimize();
112 void set_opt_control_flow(int value)
114 set_opt_control_flow_straightening(value);
115 set_opt_control_flow_weak_simplification(value);
116 set_opt_control_flow_strong_simplification(value);
119 void set_firm_verbosity (int value) {
120 firm_verbosity_level = value;
123 int (get_firm_verbosity) (void) {
124 return _get_firm_verbosity();
127 /* Save the current optimization state. */
128 void save_optimization_state(optimization_state_t *state)
130 *state = libFIRM_opt;
133 /* Restore the current optimization state. */
134 void restore_optimization_state(const optimization_state_t *state)
136 libFIRM_opt = *state;
139 /* Switches ALL optimizations off */
140 void all_optimizations_off(void)
146 /* only for debugging */
147 void firm_show_flags(FILE *f) {
150 printf("Firm optimization state:\n");
151 #define E_FLAG(name, value, def) printf(" %-20s = %s\n", #name, get_opt_##name() ? "ON" : "OFF");
152 #define I_FLAG(name, value, def) printf(" %-20s = %s\n", #name, get_opt_##name() ? "ON" : "OFF");
153 #define R_FLAG(name, value) printf(" %-20s = %s\n", #name, is_##name##_running() ? "is running" : "not running");
154 #include "irflag_t.def"
163 static const lc_opt_table_entry_t firm_flags[] = {
164 #define I_FLAG(name, val, def) LC_OPT_ENT_BIT(#name, #name, &libFIRM_opt, (1 << val)),
165 #define E_FLAG(name, val, def) LC_OPT_ENT_BIT(#name, #name, &libFIRM_opt, (1 << val)),
166 #define R_FLAG(name, val)
167 #include "irflag_t.def"
175 void firm_init_flags(void) {
177 lc_opt_entry_t *grp = lc_opt_get_grp(firm_opt_get_root(), "opt");
178 lc_opt_add_table(grp, firm_flags);
182 firm_verification_t opt_do_node_verification = FIRM_VERIFICATION_ON;
184 void do_node_verification(firm_verification_t mode) {
185 opt_do_node_verification = mode;