3 * File name: ir/ir/irflag.c
4 * Purpose: Flags to control optimizations.
5 * Author: Christian Schaefer, Goetz Lindenmaier
9 * Copyright: (c) 1999-2003 Universität Karlsruhe
10 * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
17 #include "firm_common.h"
20 /* DISABLE - don't do this optimization
21 ENABLE - lets see, if there is a better graph */
25 optimization_state_t libFIRM_opt =
26 ENABLE(OPT_OPTIMIZED) |
28 DISABLE(OPT_GLOBAL_CSE) |
29 ENABLE(OPT_STRENGTH_RED) |
30 ENABLE(OPT_CONSTANT_FOLDING) |
31 ENABLE(OPT_REDUNDANT_LOADSTORE) |
32 ENABLE(OPT_UNREACHABLE_CODE) |
33 ENABLE(OPT_CONTROL_FLOW_STRAIGHTENING) |
34 ENABLE(OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION) |
35 ENABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
36 ENABLE(OPT_CRITICAL_EDGES) |
37 ENABLE(OPT_DEAD_NODE_ELIMINATION) |
38 ENABLE(OPT_DEAD_METHOD_ELIMINATION) |
39 ENABLE(OPT_REASSOCIATION) |
41 ENABLE(OPT_DYN_METH_DISPATCH) |
42 ENABLE(OPT_NORMALIZE) |
43 ENABLE(OPT_TAIL_RECURSION) |
44 ENABLE(OPT_PRECISE_EXC_CONTEXT) |
47 optimization_state_t libFIRM_verb =
48 DISABLE(OPT_OPTIMIZED) |
50 DISABLE(OPT_GLOBAL_CSE) |
51 DISABLE(OPT_STRENGTH_RED) |
52 DISABLE(OPT_CONSTANT_FOLDING) |
53 DISABLE(OPT_REDUNDANT_LOADSTORE) |
54 DISABLE(OPT_UNREACHABLE_CODE) |
55 DISABLE(OPT_CONTROL_FLOW_STRAIGHTENING) |
56 DISABLE(OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION) |
57 DISABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
58 DISABLE(OPT_CRITICAL_EDGES) |
59 DISABLE(OPT_DEAD_NODE_ELIMINATION) |
60 DISABLE(OPT_DEAD_METHOD_ELIMINATION) |
61 DISABLE(OPT_REASSOCIATION) |
63 DISABLE(OPT_DYN_METH_DISPATCH) |
64 DISABLE(OPT_NORMALIZE) |
65 DISABLE(OPT_TAIL_RECURSION) |
66 DISABLE(OPT_PRECISE_EXC_CONTEXT) |
69 int firm_verbosity_level;
71 /* set the flags with set_flagname, get the flag with get_flagname */
72 void set_opt_cse (int value)
75 libFIRM_opt |= OPT_CSE;
77 libFIRM_opt &= ~OPT_CSE;
80 void set_opt_global_cse(int value)
83 libFIRM_opt |= OPT_GLOBAL_CSE;
85 libFIRM_opt &= ~OPT_GLOBAL_CSE;
88 void set_opt_strength_red (int value)
91 libFIRM_opt |= OPT_STRENGTH_RED;
93 libFIRM_opt &= ~OPT_STRENGTH_RED;
96 void set_opt_strength_red_verbose (int value)
99 libFIRM_verb |= OPT_STRENGTH_RED;
101 libFIRM_verb &= ~OPT_STRENGTH_RED;
105 set_opt_constant_folding(int value)
108 libFIRM_opt |= OPT_CONSTANT_FOLDING;
110 libFIRM_opt &= ~OPT_CONSTANT_FOLDING;
114 set_opt_redundant_LoadStore(int value) {
116 libFIRM_opt |= OPT_REDUNDANT_LOADSTORE;
118 libFIRM_opt &= ~OPT_REDUNDANT_LOADSTORE;
122 set_opt_unreachable_code(int value)
125 libFIRM_opt |= OPT_UNREACHABLE_CODE;
127 libFIRM_opt &= ~OPT_UNREACHABLE_CODE;
130 void set_opt_control_flow(int value)
132 set_opt_control_flow_straightening(value);
133 set_opt_control_flow_weak_simplification(value);
134 set_opt_control_flow_strong_simplification(value);
135 set_opt_critical_edges(value);
138 /* Performs Straightening */
139 void set_opt_control_flow_straightening(int value)
142 libFIRM_opt |= OPT_CONTROL_FLOW_STRAIGHTENING;
144 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRAIGHTENING;
147 /* Performs if simplifications in local optimizations. */
148 void set_opt_control_flow_weak_simplification(int value)
151 libFIRM_opt |= OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
153 libFIRM_opt &= ~OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
156 /* Performs strong if and loop simplification (in optimize_cf). */
157 void set_opt_control_flow_strong_simplification(int value)
160 libFIRM_opt |= OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
162 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
165 void set_opt_critical_edges(int value)
168 libFIRM_opt |= OPT_CRITICAL_EDGES;
170 libFIRM_opt &= ~OPT_CRITICAL_EDGES;
173 void set_opt_reassociation(int value)
176 libFIRM_opt |= OPT_REASSOCIATION;
178 libFIRM_opt &= ~OPT_REASSOCIATION;
181 void set_opt_dead_node_elimination(int value)
184 libFIRM_opt |= OPT_DEAD_NODE_ELIMINATION;
186 libFIRM_opt &= ~OPT_DEAD_NODE_ELIMINATION;
189 void set_opt_dead_method_elimination (int value) {
191 libFIRM_opt |= OPT_DEAD_METHOD_ELIMINATION;
193 libFIRM_opt &= ~OPT_DEAD_METHOD_ELIMINATION;
196 void set_opt_dead_method_elimination_verbose (int value) {
198 libFIRM_verb |= OPT_DEAD_METHOD_ELIMINATION;
200 libFIRM_verb &= ~OPT_DEAD_METHOD_ELIMINATION;
203 void set_optimize(int value)
206 libFIRM_opt |= OPT_OPTIMIZED;
208 libFIRM_opt &= ~OPT_OPTIMIZED;
211 int get_optimize(void)
213 return get_opt_optimize();
217 void set_firm_verbosity (int value) {
218 firm_verbosity_level = value;
221 int (get_firm_verbosity) (void) {
222 return __get_firm_verbosity();
227 /* Enable/Disables inlining. */
228 void set_opt_inline(int value)
231 libFIRM_opt |= OPT_INLINE;
233 libFIRM_opt &= ~OPT_INLINE;
236 /* Enable/Disable optimization of dynamic method dispatch */
237 void set_opt_dyn_meth_dispatch (int value)
240 libFIRM_opt |= OPT_DYN_METH_DISPATCH;
242 libFIRM_opt &= ~OPT_DYN_METH_DISPATCH;
245 /* Enable/Disable normalizations of the firm representation. */
246 void set_opt_normalize(int value)
249 libFIRM_opt |= OPT_NORMALIZE;
251 libFIRM_opt &= ~OPT_NORMALIZE;
254 /* Enable/Disable optimization of tail-recursion calls. */
255 void set_opt_tail_recursion(int value)
258 libFIRM_opt |= OPT_TAIL_RECURSION;
260 libFIRM_opt &= ~OPT_TAIL_RECURSION;
263 /* Enable/Disable optimization of tail-recursion calls. */
264 void set_opt_tail_recursion_verbose(int value)
267 libFIRM_verb |= OPT_TAIL_RECURSION;
269 libFIRM_verb &= ~OPT_TAIL_RECURSION;
272 /* Enable/Disable precise exception context. */
273 void set_opt_precise_exc_context(int value)
275 #if PRECISE_EXC_CONTEXT
277 libFIRM_opt |= OPT_PRECISE_EXC_CONTEXT;
279 libFIRM_opt &= ~OPT_PRECISE_EXC_CONTEXT;
283 /* Save the current optimization state. */
284 void save_optimization_state(optimization_state_t *state)
286 *state = libFIRM_opt;
289 /* Restore the current optimization state. */
290 void restore_optimization_state(const optimization_state_t *state)
292 libFIRM_opt = *state;