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_LOOP_UNROLLING) |
30 ENABLE(OPT_STRENGTH_RED) |
31 ENABLE(OPT_CONSTANT_FOLDING) |
32 ENABLE(OPT_REDUNDANT_LOADSTORE) |
33 ENABLE(OPT_UNREACHABLE_CODE) |
34 ENABLE(OPT_CONTROL_FLOW_STRAIGHTENING) |
35 ENABLE(OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION) |
36 ENABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
37 ENABLE(OPT_CRITICAL_EDGES) |
38 ENABLE(OPT_DEAD_NODE_ELIMINATION) |
39 ENABLE(OPT_DEAD_METHOD_ELIMINATION) |
40 ENABLE(OPT_REASSOCIATION) |
42 ENABLE(OPT_DYN_METH_DISPATCH) |
43 ENABLE(OPT_CLASS_CASTS) |
44 DISABLE(OPT_SUPPRESS_DOWNCAST_OPT) |
45 ENABLE(OPT_NORMALIZE) |
46 ENABLE(OPT_TAIL_RECURSION) |
47 ENABLE(OPT_PRECISE_EXC_CONTEXT) |
48 DISABLE(OPT_FRAGILE_OPS) |
49 ENABLE(OPT_IF_CONVERSION) |
50 ENABLE(OPT_REAL_FUNC_CALL) |
51 DISABLE(OPT_REMOVE_CONFIRM) |
54 optimization_state_t libFIRM_verb =
55 DISABLE(OPT_OPTIMIZED) |
57 DISABLE(OPT_GLOBAL_CSE) |
58 DISABLE(OPT_LOOP_UNROLLING) |
59 DISABLE(OPT_STRENGTH_RED) |
60 DISABLE(OPT_CONSTANT_FOLDING) |
61 DISABLE(OPT_REDUNDANT_LOADSTORE) |
62 DISABLE(OPT_UNREACHABLE_CODE) |
63 DISABLE(OPT_CONTROL_FLOW_STRAIGHTENING) |
64 DISABLE(OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION) |
65 DISABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
66 DISABLE(OPT_CRITICAL_EDGES) |
67 DISABLE(OPT_DEAD_NODE_ELIMINATION) |
68 DISABLE(OPT_DEAD_METHOD_ELIMINATION) |
69 DISABLE(OPT_REASSOCIATION) |
71 DISABLE(OPT_DYN_METH_DISPATCH) |
72 DISABLE(OPT_CLASS_CASTS) |
73 DISABLE(OPT_NORMALIZE) |
74 DISABLE(OPT_TAIL_RECURSION) |
75 DISABLE(OPT_PRECISE_EXC_CONTEXT) |
76 DISABLE(OPT_FRAGILE_OPS) |
77 DISABLE(OPT_IF_CONVERSION) |
78 DISABLE(OPT_REAL_FUNC_CALL) |
79 DISABLE(OPT_REMOVE_CONFIRM) |
82 /** The Firm verbosity level */
83 int firm_verbosity_level;
85 /* set the flags with set_flagname, get the flag with get_flagname */
86 void set_opt_cse (int value)
89 libFIRM_opt |= OPT_CSE;
91 libFIRM_opt &= ~OPT_CSE;
94 int (get_opt_cse)(void) {
95 return _get_opt_cse();
98 void set_opt_global_cse(int value)
101 libFIRM_opt |= OPT_GLOBAL_CSE;
103 libFIRM_opt &= ~OPT_GLOBAL_CSE;
106 void set_opt_loop_unrolling (int value)
109 libFIRM_opt |= OPT_LOOP_UNROLLING;
111 libFIRM_opt &= ~OPT_LOOP_UNROLLING;
114 void set_opt_loop_unrolling_verbose (int value)
117 libFIRM_verb |= OPT_LOOP_UNROLLING;
119 libFIRM_verb &= ~OPT_LOOP_UNROLLING;
122 void set_opt_strength_red (int value)
125 libFIRM_opt |= OPT_STRENGTH_RED;
127 libFIRM_opt &= ~OPT_STRENGTH_RED;
130 void set_opt_strength_red_verbose (int value)
133 libFIRM_verb |= OPT_STRENGTH_RED;
135 libFIRM_verb &= ~OPT_STRENGTH_RED;
139 set_opt_constant_folding(int value)
142 libFIRM_opt |= OPT_CONSTANT_FOLDING;
144 libFIRM_opt &= ~OPT_CONSTANT_FOLDING;
148 set_opt_redundant_LoadStore(int value) {
150 libFIRM_opt |= OPT_REDUNDANT_LOADSTORE;
152 libFIRM_opt &= ~OPT_REDUNDANT_LOADSTORE;
156 set_opt_unreachable_code(int value)
159 libFIRM_opt |= OPT_UNREACHABLE_CODE;
161 libFIRM_opt &= ~OPT_UNREACHABLE_CODE;
164 void set_opt_control_flow(int value)
166 set_opt_control_flow_straightening(value);
167 set_opt_control_flow_weak_simplification(value);
168 set_opt_control_flow_strong_simplification(value);
169 set_opt_critical_edges(value);
172 /* Performs Straightening */
173 void set_opt_control_flow_straightening(int value)
176 libFIRM_opt |= OPT_CONTROL_FLOW_STRAIGHTENING;
178 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRAIGHTENING;
181 /* Performs if simplifications in local optimizations. */
182 void set_opt_control_flow_weak_simplification(int value)
185 libFIRM_opt |= OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
187 libFIRM_opt &= ~OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
190 /* Performs strong if and loop simplification (in optimize_cf). */
191 void set_opt_control_flow_strong_simplification(int value)
194 libFIRM_opt |= OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
196 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
199 void set_opt_critical_edges(int value)
202 libFIRM_opt |= OPT_CRITICAL_EDGES;
204 libFIRM_opt &= ~OPT_CRITICAL_EDGES;
207 void set_opt_reassociation(int value)
210 libFIRM_opt |= OPT_REASSOCIATION;
212 libFIRM_opt &= ~OPT_REASSOCIATION;
215 void set_opt_dead_node_elimination(int value)
218 libFIRM_opt |= OPT_DEAD_NODE_ELIMINATION;
220 libFIRM_opt &= ~OPT_DEAD_NODE_ELIMINATION;
223 void set_opt_dead_method_elimination (int value) {
225 libFIRM_opt |= OPT_DEAD_METHOD_ELIMINATION;
227 libFIRM_opt &= ~OPT_DEAD_METHOD_ELIMINATION;
230 void set_opt_dead_method_elimination_verbose (int value) {
232 libFIRM_verb |= OPT_DEAD_METHOD_ELIMINATION;
234 libFIRM_verb &= ~OPT_DEAD_METHOD_ELIMINATION;
237 void set_optimize(int value)
240 libFIRM_opt |= OPT_OPTIMIZED;
242 libFIRM_opt &= ~OPT_OPTIMIZED;
245 int get_optimize(void)
247 return get_opt_optimize();
251 void set_firm_verbosity (int value) {
252 firm_verbosity_level = value;
255 int (get_firm_verbosity) (void) {
256 return _get_firm_verbosity();
261 /* Enable/Disables inlining. */
262 void set_opt_inline(int value)
265 libFIRM_opt |= OPT_INLINE;
267 libFIRM_opt &= ~OPT_INLINE;
270 /* Enable/Disable optimization of dynamic method dispatch */
271 void set_opt_dyn_meth_dispatch (int value)
274 libFIRM_opt |= OPT_DYN_METH_DISPATCH;
276 libFIRM_opt &= ~OPT_DYN_METH_DISPATCH;
279 int (get_opt_dyn_meth_dispatch)(void) {
280 return _get_opt_dyn_meth_dispatch();
283 void set_opt_optimize_class_casts (int value)
286 libFIRM_opt |= OPT_CLASS_CASTS;
288 libFIRM_opt &= ~OPT_CLASS_CASTS;
290 int (get_opt_optimize_class_casts) (void) {
291 return _get_opt_optimize_class_casts();
293 void set_opt_optimize_class_casts_verbose (int value)
296 libFIRM_verb |= OPT_CLASS_CASTS;
298 libFIRM_verb &= ~OPT_CLASS_CASTS;
300 int (get_opt_optimize_class_casts_verbose) (void) {
301 return _get_opt_optimize_class_casts_verbose();
303 void set_opt_suppress_downcast_optimization(int value)
306 libFIRM_opt |= OPT_SUPPRESS_DOWNCAST_OPT;
308 libFIRM_opt &= ~OPT_SUPPRESS_DOWNCAST_OPT;
310 int (get_opt_suppress_downcast_optimization)(void) {
311 return _get_opt_suppress_downcast_optimization();
315 /* Enable/Disable normalizations of the firm representation. */
316 void set_opt_normalize(int value)
319 libFIRM_opt |= OPT_NORMALIZE;
321 libFIRM_opt &= ~OPT_NORMALIZE;
324 /* Enable/Disable optimization of tail-recursion calls. */
325 void set_opt_tail_recursion(int value)
328 libFIRM_opt |= OPT_TAIL_RECURSION;
330 libFIRM_opt &= ~OPT_TAIL_RECURSION;
333 /* Enable/Disable optimization of tail-recursion calls. */
334 void set_opt_tail_recursion_verbose(int value)
337 libFIRM_verb |= OPT_TAIL_RECURSION;
339 libFIRM_verb &= ~OPT_TAIL_RECURSION;
342 /* Enable/Disable precise exception context. */
343 void set_opt_precise_exc_context(int value)
345 #if PRECISE_EXC_CONTEXT
347 libFIRM_opt |= OPT_PRECISE_EXC_CONTEXT;
349 libFIRM_opt &= ~OPT_PRECISE_EXC_CONTEXT;
353 void set_opt_fragile_ops(int value)
356 libFIRM_opt |= OPT_FRAGILE_OPS;
358 libFIRM_opt &= ~OPT_FRAGILE_OPS;
361 /* Enable/Disable if conversion. */
362 void set_opt_if_conversion(int value)
365 libFIRM_opt |= OPT_IF_CONVERSION;
367 libFIRM_opt &= ~OPT_IF_CONVERSION;
370 /* Enable/Disable real function call optimization. */
371 void set_opt_real_function_call(int value)
374 libFIRM_opt |= OPT_REAL_FUNC_CALL;
376 libFIRM_opt &= ~OPT_REAL_FUNC_CALL;
379 /* Enable/Disable Confirm node removal. */
380 void set_opt_remove_Confirm(int value)
383 libFIRM_opt |= OPT_REMOVE_CONFIRM;
385 libFIRM_opt &= ~OPT_REMOVE_CONFIRM;
388 /* Save the current optimization state. */
389 void save_optimization_state(optimization_state_t *state)
391 *state = libFIRM_opt;
394 /* Restore the current optimization state. */
395 void restore_optimization_state(const optimization_state_t *state)
397 libFIRM_opt = *state;