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) |
52 ENABLE(OPT_SCALAR_REPLACEMENT) |
55 optimization_state_t libFIRM_verb =
56 DISABLE(OPT_OPTIMIZED) |
58 DISABLE(OPT_GLOBAL_CSE) |
59 DISABLE(OPT_LOOP_UNROLLING) |
60 DISABLE(OPT_STRENGTH_RED) |
61 DISABLE(OPT_CONSTANT_FOLDING) |
62 DISABLE(OPT_REDUNDANT_LOADSTORE) |
63 DISABLE(OPT_UNREACHABLE_CODE) |
64 DISABLE(OPT_CONTROL_FLOW_STRAIGHTENING) |
65 DISABLE(OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION) |
66 DISABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
67 DISABLE(OPT_CRITICAL_EDGES) |
68 DISABLE(OPT_DEAD_NODE_ELIMINATION) |
69 DISABLE(OPT_DEAD_METHOD_ELIMINATION) |
70 DISABLE(OPT_REASSOCIATION) |
72 DISABLE(OPT_DYN_METH_DISPATCH) |
73 DISABLE(OPT_CLASS_CASTS) |
74 DISABLE(OPT_NORMALIZE) |
75 DISABLE(OPT_TAIL_RECURSION) |
76 DISABLE(OPT_PRECISE_EXC_CONTEXT) |
77 DISABLE(OPT_FRAGILE_OPS) |
78 DISABLE(OPT_IF_CONVERSION) |
79 DISABLE(OPT_REAL_FUNC_CALL) |
80 DISABLE(OPT_REMOVE_CONFIRM) |
81 DISABLE(OPT_SCALAR_REPLACEMENT) |
84 /** The Firm verbosity level */
85 int firm_verbosity_level;
87 /* set the flags with set_flagname, get the flag with get_flagname */
88 void set_opt_cse (int value)
91 libFIRM_opt |= OPT_CSE;
93 libFIRM_opt &= ~OPT_CSE;
96 int (get_opt_cse)(void) {
97 return _get_opt_cse();
100 void set_opt_global_cse(int value)
103 libFIRM_opt |= OPT_GLOBAL_CSE;
105 libFIRM_opt &= ~OPT_GLOBAL_CSE;
108 void set_opt_loop_unrolling (int value)
111 libFIRM_opt |= OPT_LOOP_UNROLLING;
113 libFIRM_opt &= ~OPT_LOOP_UNROLLING;
116 void set_opt_loop_unrolling_verbose (int value)
119 libFIRM_verb |= OPT_LOOP_UNROLLING;
121 libFIRM_verb &= ~OPT_LOOP_UNROLLING;
124 void set_opt_strength_red (int value)
127 libFIRM_opt |= OPT_STRENGTH_RED;
129 libFIRM_opt &= ~OPT_STRENGTH_RED;
132 void set_opt_strength_red_verbose (int value)
135 libFIRM_verb |= OPT_STRENGTH_RED;
137 libFIRM_verb &= ~OPT_STRENGTH_RED;
141 set_opt_constant_folding(int value)
144 libFIRM_opt |= OPT_CONSTANT_FOLDING;
146 libFIRM_opt &= ~OPT_CONSTANT_FOLDING;
150 set_opt_redundant_LoadStore(int value) {
152 libFIRM_opt |= OPT_REDUNDANT_LOADSTORE;
154 libFIRM_opt &= ~OPT_REDUNDANT_LOADSTORE;
158 set_opt_unreachable_code(int value)
161 libFIRM_opt |= OPT_UNREACHABLE_CODE;
163 libFIRM_opt &= ~OPT_UNREACHABLE_CODE;
166 void set_opt_control_flow(int value)
168 set_opt_control_flow_straightening(value);
169 set_opt_control_flow_weak_simplification(value);
170 set_opt_control_flow_strong_simplification(value);
171 set_opt_critical_edges(value);
174 /* Performs Straightening */
175 void set_opt_control_flow_straightening(int value)
178 libFIRM_opt |= OPT_CONTROL_FLOW_STRAIGHTENING;
180 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRAIGHTENING;
183 /* Performs if simplifications in local optimizations. */
184 void set_opt_control_flow_weak_simplification(int value)
187 libFIRM_opt |= OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
189 libFIRM_opt &= ~OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
192 /* Performs strong if and loop simplification (in optimize_cf). */
193 void set_opt_control_flow_strong_simplification(int value)
196 libFIRM_opt |= OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
198 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
201 void set_opt_critical_edges(int value)
204 libFIRM_opt |= OPT_CRITICAL_EDGES;
206 libFIRM_opt &= ~OPT_CRITICAL_EDGES;
209 void set_opt_reassociation(int value)
212 libFIRM_opt |= OPT_REASSOCIATION;
214 libFIRM_opt &= ~OPT_REASSOCIATION;
217 void set_opt_dead_node_elimination(int value)
220 libFIRM_opt |= OPT_DEAD_NODE_ELIMINATION;
222 libFIRM_opt &= ~OPT_DEAD_NODE_ELIMINATION;
225 void set_opt_dead_method_elimination (int value) {
227 libFIRM_opt |= OPT_DEAD_METHOD_ELIMINATION;
229 libFIRM_opt &= ~OPT_DEAD_METHOD_ELIMINATION;
232 void set_opt_dead_method_elimination_verbose (int value) {
234 libFIRM_verb |= OPT_DEAD_METHOD_ELIMINATION;
236 libFIRM_verb &= ~OPT_DEAD_METHOD_ELIMINATION;
239 void set_optimize(int value)
242 libFIRM_opt |= OPT_OPTIMIZED;
244 libFIRM_opt &= ~OPT_OPTIMIZED;
247 int get_optimize(void)
249 return get_opt_optimize();
253 void set_firm_verbosity (int value) {
254 firm_verbosity_level = value;
257 int (get_firm_verbosity) (void) {
258 return _get_firm_verbosity();
263 /* Enable/Disables inlining. */
264 void set_opt_inline(int value)
267 libFIRM_opt |= OPT_INLINE;
269 libFIRM_opt &= ~OPT_INLINE;
272 /* Enable/Disable optimization of dynamic method dispatch */
273 void set_opt_dyn_meth_dispatch (int value)
276 libFIRM_opt |= OPT_DYN_METH_DISPATCH;
278 libFIRM_opt &= ~OPT_DYN_METH_DISPATCH;
281 int (get_opt_dyn_meth_dispatch)(void) {
282 return _get_opt_dyn_meth_dispatch();
285 void set_opt_optimize_class_casts (int value)
288 libFIRM_opt |= OPT_CLASS_CASTS;
290 libFIRM_opt &= ~OPT_CLASS_CASTS;
292 int (get_opt_optimize_class_casts) (void) {
293 return _get_opt_optimize_class_casts();
295 void set_opt_optimize_class_casts_verbose (int value)
298 libFIRM_verb |= OPT_CLASS_CASTS;
300 libFIRM_verb &= ~OPT_CLASS_CASTS;
302 int (get_opt_optimize_class_casts_verbose) (void) {
303 return _get_opt_optimize_class_casts_verbose();
305 void set_opt_suppress_downcast_optimization(int value)
308 libFIRM_opt |= OPT_SUPPRESS_DOWNCAST_OPT;
310 libFIRM_opt &= ~OPT_SUPPRESS_DOWNCAST_OPT;
312 int (get_opt_suppress_downcast_optimization)(void) {
313 return _get_opt_suppress_downcast_optimization();
317 /* Enable/Disable normalizations of the firm representation. */
318 void set_opt_normalize(int value)
321 libFIRM_opt |= OPT_NORMALIZE;
323 libFIRM_opt &= ~OPT_NORMALIZE;
326 /* Enable/Disable optimization of tail-recursion calls. */
327 void set_opt_tail_recursion(int value)
330 libFIRM_opt |= OPT_TAIL_RECURSION;
332 libFIRM_opt &= ~OPT_TAIL_RECURSION;
335 /* Enable/Disable optimization of tail-recursion calls. */
336 void set_opt_tail_recursion_verbose(int value)
339 libFIRM_verb |= OPT_TAIL_RECURSION;
341 libFIRM_verb &= ~OPT_TAIL_RECURSION;
344 /* Enable/Disable precise exception context. */
345 void set_opt_precise_exc_context(int value)
347 #if PRECISE_EXC_CONTEXT
349 libFIRM_opt |= OPT_PRECISE_EXC_CONTEXT;
351 libFIRM_opt &= ~OPT_PRECISE_EXC_CONTEXT;
355 void set_opt_fragile_ops(int value)
358 libFIRM_opt |= OPT_FRAGILE_OPS;
360 libFIRM_opt &= ~OPT_FRAGILE_OPS;
363 /* Enable/Disable if conversion. */
364 void set_opt_if_conversion(int value)
367 libFIRM_opt |= OPT_IF_CONVERSION;
369 libFIRM_opt &= ~OPT_IF_CONVERSION;
372 /* Enable/Disable real function call optimization. */
373 void set_opt_real_function_call(int value)
376 libFIRM_opt |= OPT_REAL_FUNC_CALL;
378 libFIRM_opt &= ~OPT_REAL_FUNC_CALL;
381 /* Enable/Disable Confirm node removal. */
382 void set_opt_remove_Confirm(int value)
385 libFIRM_opt |= OPT_REMOVE_CONFIRM;
387 libFIRM_opt &= ~OPT_REMOVE_CONFIRM;
390 /* Enable/Disable scalar replacement optimization. */
391 void set_opt_scalar_replacement(int value)
394 libFIRM_opt |= OPT_SCALAR_REPLACEMENT;
396 libFIRM_opt &= ~OPT_SCALAR_REPLACEMENT;
399 /* Set verbosity for scalar relacement */
400 void set_opt_scalar_replacement_verbose(int value)
403 libFIRM_verb |= OPT_SCALAR_REPLACEMENT;
405 libFIRM_verb &= ~OPT_SCALAR_REPLACEMENT;
408 /* Save the current optimization state. */
409 void save_optimization_state(optimization_state_t *state)
411 *state = libFIRM_opt;
414 /* Restore the current optimization state. */
415 void restore_optimization_state(const optimization_state_t *state)
417 libFIRM_opt = *state;