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) |
47 ENABLE(OPT_IF_CONVERSION) |
50 optimization_state_t libFIRM_verb =
51 DISABLE(OPT_OPTIMIZED) |
53 DISABLE(OPT_GLOBAL_CSE) |
54 DISABLE(OPT_LOOP_UNROLLING) |
55 DISABLE(OPT_STRENGTH_RED) |
56 DISABLE(OPT_CONSTANT_FOLDING) |
57 DISABLE(OPT_REDUNDANT_LOADSTORE) |
58 DISABLE(OPT_UNREACHABLE_CODE) |
59 DISABLE(OPT_CONTROL_FLOW_STRAIGHTENING) |
60 DISABLE(OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION) |
61 DISABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
62 DISABLE(OPT_CRITICAL_EDGES) |
63 DISABLE(OPT_DEAD_NODE_ELIMINATION) |
64 DISABLE(OPT_DEAD_METHOD_ELIMINATION) |
65 DISABLE(OPT_REASSOCIATION) |
67 DISABLE(OPT_DYN_METH_DISPATCH) |
68 DISABLE(OPT_NORMALIZE) |
69 DISABLE(OPT_TAIL_RECURSION) |
70 DISABLE(OPT_PRECISE_EXC_CONTEXT) |
71 DISABLE(OPT_FRAGILE_OPS) |
72 DISABLE(OPT_IF_CONVERSION) |
75 /** The Firm verbosity level */
76 int firm_verbosity_level;
78 /* set the flags with set_flagname, get the flag with get_flagname */
79 void set_opt_cse (int value)
82 libFIRM_opt |= OPT_CSE;
84 libFIRM_opt &= ~OPT_CSE;
87 int (get_opt_cse)(void) {
88 return _get_opt_cse();
91 void set_opt_global_cse(int value)
94 libFIRM_opt |= OPT_GLOBAL_CSE;
96 libFIRM_opt &= ~OPT_GLOBAL_CSE;
99 void set_opt_loop_unrolling (int value)
102 libFIRM_opt |= OPT_LOOP_UNROLLING;
104 libFIRM_opt &= ~OPT_LOOP_UNROLLING;
107 void set_opt_loop_unrolling_verbose (int value)
110 libFIRM_verb |= OPT_LOOP_UNROLLING;
112 libFIRM_verb &= ~OPT_LOOP_UNROLLING;
115 void set_opt_strength_red (int value)
118 libFIRM_opt |= OPT_STRENGTH_RED;
120 libFIRM_opt &= ~OPT_STRENGTH_RED;
123 void set_opt_strength_red_verbose (int value)
126 libFIRM_verb |= OPT_STRENGTH_RED;
128 libFIRM_verb &= ~OPT_STRENGTH_RED;
132 set_opt_constant_folding(int value)
135 libFIRM_opt |= OPT_CONSTANT_FOLDING;
137 libFIRM_opt &= ~OPT_CONSTANT_FOLDING;
141 set_opt_redundant_LoadStore(int value) {
143 libFIRM_opt |= OPT_REDUNDANT_LOADSTORE;
145 libFIRM_opt &= ~OPT_REDUNDANT_LOADSTORE;
149 set_opt_unreachable_code(int value)
152 libFIRM_opt |= OPT_UNREACHABLE_CODE;
154 libFIRM_opt &= ~OPT_UNREACHABLE_CODE;
157 void set_opt_control_flow(int value)
159 set_opt_control_flow_straightening(value);
160 set_opt_control_flow_weak_simplification(value);
161 set_opt_control_flow_strong_simplification(value);
162 set_opt_critical_edges(value);
165 /* Performs Straightening */
166 void set_opt_control_flow_straightening(int value)
169 libFIRM_opt |= OPT_CONTROL_FLOW_STRAIGHTENING;
171 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRAIGHTENING;
174 /* Performs if simplifications in local optimizations. */
175 void set_opt_control_flow_weak_simplification(int value)
178 libFIRM_opt |= OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
180 libFIRM_opt &= ~OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
183 /* Performs strong if and loop simplification (in optimize_cf). */
184 void set_opt_control_flow_strong_simplification(int value)
187 libFIRM_opt |= OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
189 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
192 void set_opt_critical_edges(int value)
195 libFIRM_opt |= OPT_CRITICAL_EDGES;
197 libFIRM_opt &= ~OPT_CRITICAL_EDGES;
200 void set_opt_reassociation(int value)
203 libFIRM_opt |= OPT_REASSOCIATION;
205 libFIRM_opt &= ~OPT_REASSOCIATION;
208 void set_opt_dead_node_elimination(int value)
211 libFIRM_opt |= OPT_DEAD_NODE_ELIMINATION;
213 libFIRM_opt &= ~OPT_DEAD_NODE_ELIMINATION;
216 void set_opt_dead_method_elimination (int value) {
218 libFIRM_opt |= OPT_DEAD_METHOD_ELIMINATION;
220 libFIRM_opt &= ~OPT_DEAD_METHOD_ELIMINATION;
223 void set_opt_dead_method_elimination_verbose (int value) {
225 libFIRM_verb |= OPT_DEAD_METHOD_ELIMINATION;
227 libFIRM_verb &= ~OPT_DEAD_METHOD_ELIMINATION;
230 void set_optimize(int value)
233 libFIRM_opt |= OPT_OPTIMIZED;
235 libFIRM_opt &= ~OPT_OPTIMIZED;
238 int get_optimize(void)
240 return get_opt_optimize();
244 void set_firm_verbosity (int value) {
245 firm_verbosity_level = value;
248 int (get_firm_verbosity) (void) {
249 return _get_firm_verbosity();
254 /* Enable/Disables inlining. */
255 void set_opt_inline(int value)
258 libFIRM_opt |= OPT_INLINE;
260 libFIRM_opt &= ~OPT_INLINE;
263 /* Enable/Disable optimization of dynamic method dispatch */
264 void set_opt_dyn_meth_dispatch (int value)
267 libFIRM_opt |= OPT_DYN_METH_DISPATCH;
269 libFIRM_opt &= ~OPT_DYN_METH_DISPATCH;
272 /* Enable/Disable normalizations of the firm representation. */
273 void set_opt_normalize(int value)
276 libFIRM_opt |= OPT_NORMALIZE;
278 libFIRM_opt &= ~OPT_NORMALIZE;
281 /* Enable/Disable optimization of tail-recursion calls. */
282 void set_opt_tail_recursion(int value)
285 libFIRM_opt |= OPT_TAIL_RECURSION;
287 libFIRM_opt &= ~OPT_TAIL_RECURSION;
290 /* Enable/Disable optimization of tail-recursion calls. */
291 void set_opt_tail_recursion_verbose(int value)
294 libFIRM_verb |= OPT_TAIL_RECURSION;
296 libFIRM_verb &= ~OPT_TAIL_RECURSION;
299 /* Enable/Disable precise exception context. */
300 void set_opt_precise_exc_context(int value)
302 #if PRECISE_EXC_CONTEXT
304 libFIRM_opt |= OPT_PRECISE_EXC_CONTEXT;
306 libFIRM_opt &= ~OPT_PRECISE_EXC_CONTEXT;
310 void set_opt_fragile_ops(int value)
313 libFIRM_opt |= OPT_FRAGILE_OPS;
315 libFIRM_opt &= ~OPT_FRAGILE_OPS;
318 void set_opt_if_conversion(int value)
321 libFIRM_opt |= OPT_IF_CONVERSION;
323 libFIRM_opt &= ~OPT_IF_CONVERSION;
326 /* Save the current optimization state. */
327 void save_optimization_state(optimization_state_t *state)
329 *state = libFIRM_opt;
332 /* Restore the current optimization state. */
333 void restore_optimization_state(const optimization_state_t *state)
335 libFIRM_opt = *state;