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_NORMALIZE) |
44 ENABLE(OPT_TAIL_RECURSION) |
45 ENABLE(OPT_PRECISE_EXC_CONTEXT) |
46 DISABLE(OPT_FRAGILE_OPS) |
49 optimization_state_t libFIRM_verb =
50 DISABLE(OPT_OPTIMIZED) |
52 DISABLE(OPT_GLOBAL_CSE) |
53 DISABLE(OPT_LOOP_UNROLLING) |
54 DISABLE(OPT_STRENGTH_RED) |
55 DISABLE(OPT_CONSTANT_FOLDING) |
56 DISABLE(OPT_REDUNDANT_LOADSTORE) |
57 DISABLE(OPT_UNREACHABLE_CODE) |
58 DISABLE(OPT_CONTROL_FLOW_STRAIGHTENING) |
59 DISABLE(OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION) |
60 DISABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
61 DISABLE(OPT_CRITICAL_EDGES) |
62 DISABLE(OPT_DEAD_NODE_ELIMINATION) |
63 DISABLE(OPT_DEAD_METHOD_ELIMINATION) |
64 DISABLE(OPT_REASSOCIATION) |
66 DISABLE(OPT_DYN_METH_DISPATCH) |
67 DISABLE(OPT_NORMALIZE) |
68 DISABLE(OPT_TAIL_RECURSION) |
69 DISABLE(OPT_PRECISE_EXC_CONTEXT) |
70 DISABLE(OPT_FRAGILE_OPS) |
73 /** The Firm verbosity level */
74 int firm_verbosity_level;
76 /* set the flags with set_flagname, get the flag with get_flagname */
77 void set_opt_cse (int value)
80 libFIRM_opt |= OPT_CSE;
82 libFIRM_opt &= ~OPT_CSE;
85 int (get_opt_cse)(void) {
86 return _get_opt_cse();
89 void set_opt_global_cse(int value)
92 libFIRM_opt |= OPT_GLOBAL_CSE;
94 libFIRM_opt &= ~OPT_GLOBAL_CSE;
97 void set_opt_loop_unrolling (int value)
100 libFIRM_opt |= OPT_LOOP_UNROLLING;
102 libFIRM_opt &= ~OPT_LOOP_UNROLLING;
105 void set_opt_loop_unrolling_verbose (int value)
108 libFIRM_verb |= OPT_LOOP_UNROLLING;
110 libFIRM_verb &= ~OPT_LOOP_UNROLLING;
113 void set_opt_strength_red (int value)
116 libFIRM_opt |= OPT_STRENGTH_RED;
118 libFIRM_opt &= ~OPT_STRENGTH_RED;
121 void set_opt_strength_red_verbose (int value)
124 libFIRM_verb |= OPT_STRENGTH_RED;
126 libFIRM_verb &= ~OPT_STRENGTH_RED;
130 set_opt_constant_folding(int value)
133 libFIRM_opt |= OPT_CONSTANT_FOLDING;
135 libFIRM_opt &= ~OPT_CONSTANT_FOLDING;
139 set_opt_redundant_LoadStore(int value) {
141 libFIRM_opt |= OPT_REDUNDANT_LOADSTORE;
143 libFIRM_opt &= ~OPT_REDUNDANT_LOADSTORE;
147 set_opt_unreachable_code(int value)
150 libFIRM_opt |= OPT_UNREACHABLE_CODE;
152 libFIRM_opt &= ~OPT_UNREACHABLE_CODE;
155 void set_opt_control_flow(int value)
157 set_opt_control_flow_straightening(value);
158 set_opt_control_flow_weak_simplification(value);
159 set_opt_control_flow_strong_simplification(value);
160 set_opt_critical_edges(value);
163 /* Performs Straightening */
164 void set_opt_control_flow_straightening(int value)
167 libFIRM_opt |= OPT_CONTROL_FLOW_STRAIGHTENING;
169 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRAIGHTENING;
172 /* Performs if simplifications in local optimizations. */
173 void set_opt_control_flow_weak_simplification(int value)
176 libFIRM_opt |= OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
178 libFIRM_opt &= ~OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
181 /* Performs strong if and loop simplification (in optimize_cf). */
182 void set_opt_control_flow_strong_simplification(int value)
185 libFIRM_opt |= OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
187 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
190 void set_opt_critical_edges(int value)
193 libFIRM_opt |= OPT_CRITICAL_EDGES;
195 libFIRM_opt &= ~OPT_CRITICAL_EDGES;
198 void set_opt_reassociation(int value)
201 libFIRM_opt |= OPT_REASSOCIATION;
203 libFIRM_opt &= ~OPT_REASSOCIATION;
206 void set_opt_dead_node_elimination(int value)
209 libFIRM_opt |= OPT_DEAD_NODE_ELIMINATION;
211 libFIRM_opt &= ~OPT_DEAD_NODE_ELIMINATION;
214 void set_opt_dead_method_elimination (int value) {
216 libFIRM_opt |= OPT_DEAD_METHOD_ELIMINATION;
218 libFIRM_opt &= ~OPT_DEAD_METHOD_ELIMINATION;
221 void set_opt_dead_method_elimination_verbose (int value) {
223 libFIRM_verb |= OPT_DEAD_METHOD_ELIMINATION;
225 libFIRM_verb &= ~OPT_DEAD_METHOD_ELIMINATION;
228 void set_optimize(int value)
231 libFIRM_opt |= OPT_OPTIMIZED;
233 libFIRM_opt &= ~OPT_OPTIMIZED;
236 int get_optimize(void)
238 return get_opt_optimize();
242 void set_firm_verbosity (int value) {
243 firm_verbosity_level = value;
246 int (get_firm_verbosity) (void) {
247 return _get_firm_verbosity();
252 /* Enable/Disables inlining. */
253 void set_opt_inline(int value)
256 libFIRM_opt |= OPT_INLINE;
258 libFIRM_opt &= ~OPT_INLINE;
261 /* Enable/Disable optimization of dynamic method dispatch */
262 void set_opt_dyn_meth_dispatch (int value)
265 libFIRM_opt |= OPT_DYN_METH_DISPATCH;
267 libFIRM_opt &= ~OPT_DYN_METH_DISPATCH;
270 /* Enable/Disable normalizations of the firm representation. */
271 void set_opt_normalize(int value)
274 libFIRM_opt |= OPT_NORMALIZE;
276 libFIRM_opt &= ~OPT_NORMALIZE;
279 /* Enable/Disable optimization of tail-recursion calls. */
280 void set_opt_tail_recursion(int value)
283 libFIRM_opt |= OPT_TAIL_RECURSION;
285 libFIRM_opt &= ~OPT_TAIL_RECURSION;
288 /* Enable/Disable optimization of tail-recursion calls. */
289 void set_opt_tail_recursion_verbose(int value)
292 libFIRM_verb |= OPT_TAIL_RECURSION;
294 libFIRM_verb &= ~OPT_TAIL_RECURSION;
297 /* Enable/Disable precise exception context. */
298 void set_opt_precise_exc_context(int value)
300 #if PRECISE_EXC_CONTEXT
302 libFIRM_opt |= OPT_PRECISE_EXC_CONTEXT;
304 libFIRM_opt &= ~OPT_PRECISE_EXC_CONTEXT;
308 void set_opt_fragile_ops(int value)
311 libFIRM_opt |= OPT_FRAGILE_OPS;
313 libFIRM_opt &= ~OPT_FRAGILE_OPS;
316 /* Save the current optimization state. */
317 void save_optimization_state(optimization_state_t *state)
319 *state = libFIRM_opt;
322 /* Restore the current optimization state. */
323 void restore_optimization_state(const optimization_state_t *state)
325 libFIRM_opt = *state;