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 * @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)
49 optimization_state_t libFIRM_opt =
50 #include "irflag_t.def"
58 /* verbose is always off on default */
59 optimization_state_t libFIRM_verb = 0;
61 /** The Firm verbosity level */
62 int firm_verbosity_level;
64 /* an external flag can be set and get from outside */
65 #define E_FLAG(name, value, def) \
66 void set_opt_##name(int flag) { \
67 if (flag) libFIRM_opt |= irf_##name; \
68 else libFIRM_opt &= ~irf_##name; \
70 void set_opt_##name##_verbose(int flag) { \
71 if (flag) libFIRM_verb |= irf_##name; \
72 else libFIRM_verb &= ~irf_##name; \
74 int (get_opt_##name)(void) { \
75 return _get_opt_##name(); \
78 /* an internal flag can only be set from outside */
79 #define I_FLAG(name, value, def) \
80 void set_opt_##name(int flag) { \
81 if (flag) libFIRM_opt |= irf_##name; \
82 else libFIRM_opt &= ~irf_##name; \
84 void set_opt_##name##_verbose(int flag) { \
85 if (flag) libFIRM_verb |= irf_##name; \
86 else libFIRM_verb &= ~irf_##name; \
90 #include "irflag_t.def"
95 /* for compatibility reasons */
96 void set_optimize(int value) {
97 if (value) libFIRM_opt |= irf_optimize;
98 else libFIRM_opt &= ~irf_optimize;
101 int (get_optimize)(void) {
102 return get_opt_optimize();
105 void set_opt_control_flow(int value)
107 set_opt_control_flow_straightening(value);
108 set_opt_control_flow_weak_simplification(value);
109 set_opt_control_flow_strong_simplification(value);
112 void set_firm_verbosity (int value) {
113 firm_verbosity_level = value;
116 int (get_firm_verbosity) (void) {
117 return _get_firm_verbosity();
120 /* Save the current optimization state. */
121 void save_optimization_state(optimization_state_t *state)
123 *state = libFIRM_opt;
126 /* Restore the current optimization state. */
127 void restore_optimization_state(const optimization_state_t *state)
129 libFIRM_opt = *state;
132 /* Switches ALL optimizations off */
133 void all_optimizations_off(void)
139 /* only for debugging */
140 void firm_show_flags(FILE *f) {
143 printf("Firm optimization state:\n");
144 #define E_FLAG(name, value, def) printf(" %-20s = %s\n", #name, get_opt_##name() ? "ON" : "OFF");
145 #define I_FLAG(name, value, def) printf(" %-20s = %s\n", #name, get_opt_##name() ? "ON" : "OFF");
146 #include "irflag_t.def"
154 static const lc_opt_table_entry_t firm_flags[] = {
155 #define I_FLAG(name, val, def) LC_OPT_ENT_BIT(#name, #name, &libFIRM_opt, (1 << val)),
156 #define E_FLAG(name, val, def) LC_OPT_ENT_BIT(#name, #name, &libFIRM_opt, (1 << val)),
157 #include "irflag_t.def"
164 void firm_init_flags(void)
167 lc_opt_entry_t *grp = lc_opt_get_grp(firm_opt_get_root(), "opt");
168 lc_opt_add_table(grp, firm_flags);
172 firm_verification_t opt_do_node_verification = FIRM_VERIFICATION_ON;
174 void do_node_verification(firm_verification_t mode) {
175 opt_do_node_verification = mode;