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) |
45 DISABLE(OPT_FRAGILE_OPS) |
48 optimization_state_t libFIRM_verb =
49 DISABLE(OPT_OPTIMIZED) |
51 DISABLE(OPT_GLOBAL_CSE) |
52 DISABLE(OPT_STRENGTH_RED) |
53 DISABLE(OPT_CONSTANT_FOLDING) |
54 DISABLE(OPT_REDUNDANT_LOADSTORE) |
55 DISABLE(OPT_UNREACHABLE_CODE) |
56 DISABLE(OPT_CONTROL_FLOW_STRAIGHTENING) |
57 DISABLE(OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION) |
58 DISABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
59 DISABLE(OPT_CRITICAL_EDGES) |
60 DISABLE(OPT_DEAD_NODE_ELIMINATION) |
61 DISABLE(OPT_DEAD_METHOD_ELIMINATION) |
62 DISABLE(OPT_REASSOCIATION) |
64 DISABLE(OPT_DYN_METH_DISPATCH) |
65 DISABLE(OPT_NORMALIZE) |
66 DISABLE(OPT_TAIL_RECURSION) |
67 DISABLE(OPT_PRECISE_EXC_CONTEXT) |
68 DISABLE(OPT_FRAGILE_OPS) |
71 /** The Firm verbosity level */
72 int firm_verbosity_level;
74 /* set the flags with set_flagname, get the flag with get_flagname */
75 void set_opt_cse (int value)
78 libFIRM_opt |= OPT_CSE;
80 libFIRM_opt &= ~OPT_CSE;
83 int (get_opt_cse)(void) {
84 return _get_opt_cse();
87 void set_opt_global_cse(int value)
90 libFIRM_opt |= OPT_GLOBAL_CSE;
92 libFIRM_opt &= ~OPT_GLOBAL_CSE;
95 void set_opt_strength_red (int value)
98 libFIRM_opt |= OPT_STRENGTH_RED;
100 libFIRM_opt &= ~OPT_STRENGTH_RED;
103 void set_opt_strength_red_verbose (int value)
106 libFIRM_verb |= OPT_STRENGTH_RED;
108 libFIRM_verb &= ~OPT_STRENGTH_RED;
112 set_opt_constant_folding(int value)
115 libFIRM_opt |= OPT_CONSTANT_FOLDING;
117 libFIRM_opt &= ~OPT_CONSTANT_FOLDING;
121 set_opt_redundant_LoadStore(int value) {
123 libFIRM_opt |= OPT_REDUNDANT_LOADSTORE;
125 libFIRM_opt &= ~OPT_REDUNDANT_LOADSTORE;
129 set_opt_unreachable_code(int value)
132 libFIRM_opt |= OPT_UNREACHABLE_CODE;
134 libFIRM_opt &= ~OPT_UNREACHABLE_CODE;
137 void set_opt_control_flow(int value)
139 set_opt_control_flow_straightening(value);
140 set_opt_control_flow_weak_simplification(value);
141 set_opt_control_flow_strong_simplification(value);
142 set_opt_critical_edges(value);
145 /* Performs Straightening */
146 void set_opt_control_flow_straightening(int value)
149 libFIRM_opt |= OPT_CONTROL_FLOW_STRAIGHTENING;
151 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRAIGHTENING;
154 /* Performs if simplifications in local optimizations. */
155 void set_opt_control_flow_weak_simplification(int value)
158 libFIRM_opt |= OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
160 libFIRM_opt &= ~OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
163 /* Performs strong if and loop simplification (in optimize_cf). */
164 void set_opt_control_flow_strong_simplification(int value)
167 libFIRM_opt |= OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
169 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
172 void set_opt_critical_edges(int value)
175 libFIRM_opt |= OPT_CRITICAL_EDGES;
177 libFIRM_opt &= ~OPT_CRITICAL_EDGES;
180 void set_opt_reassociation(int value)
183 libFIRM_opt |= OPT_REASSOCIATION;
185 libFIRM_opt &= ~OPT_REASSOCIATION;
188 void set_opt_dead_node_elimination(int value)
191 libFIRM_opt |= OPT_DEAD_NODE_ELIMINATION;
193 libFIRM_opt &= ~OPT_DEAD_NODE_ELIMINATION;
196 void set_opt_dead_method_elimination (int value) {
198 libFIRM_opt |= OPT_DEAD_METHOD_ELIMINATION;
200 libFIRM_opt &= ~OPT_DEAD_METHOD_ELIMINATION;
203 void set_opt_dead_method_elimination_verbose (int value) {
205 libFIRM_verb |= OPT_DEAD_METHOD_ELIMINATION;
207 libFIRM_verb &= ~OPT_DEAD_METHOD_ELIMINATION;
210 void set_optimize(int value)
213 libFIRM_opt |= OPT_OPTIMIZED;
215 libFIRM_opt &= ~OPT_OPTIMIZED;
218 int get_optimize(void)
220 return get_opt_optimize();
224 void set_firm_verbosity (int value) {
225 firm_verbosity_level = value;
228 int (get_firm_verbosity) (void) {
229 return _get_firm_verbosity();
234 /* Enable/Disables inlining. */
235 void set_opt_inline(int value)
238 libFIRM_opt |= OPT_INLINE;
240 libFIRM_opt &= ~OPT_INLINE;
243 /* Enable/Disable optimization of dynamic method dispatch */
244 void set_opt_dyn_meth_dispatch (int value)
247 libFIRM_opt |= OPT_DYN_METH_DISPATCH;
249 libFIRM_opt &= ~OPT_DYN_METH_DISPATCH;
252 /* Enable/Disable normalizations of the firm representation. */
253 void set_opt_normalize(int value)
256 libFIRM_opt |= OPT_NORMALIZE;
258 libFIRM_opt &= ~OPT_NORMALIZE;
261 /* Enable/Disable optimization of tail-recursion calls. */
262 void set_opt_tail_recursion(int value)
265 libFIRM_opt |= OPT_TAIL_RECURSION;
267 libFIRM_opt &= ~OPT_TAIL_RECURSION;
270 /* Enable/Disable optimization of tail-recursion calls. */
271 void set_opt_tail_recursion_verbose(int value)
274 libFIRM_verb |= OPT_TAIL_RECURSION;
276 libFIRM_verb &= ~OPT_TAIL_RECURSION;
279 /* Enable/Disable precise exception context. */
280 void set_opt_precise_exc_context(int value)
282 #if PRECISE_EXC_CONTEXT
284 libFIRM_opt |= OPT_PRECISE_EXC_CONTEXT;
286 libFIRM_opt &= ~OPT_PRECISE_EXC_CONTEXT;
290 void set_opt_fragile_ops(int value)
293 libFIRM_opt |= OPT_FRAGILE_OPS;
295 libFIRM_opt &= ~OPT_FRAGILE_OPS;
298 /* Save the current optimization state. */
299 void save_optimization_state(optimization_state_t *state)
301 *state = libFIRM_opt;
304 /* Restore the current optimization state. */
305 void restore_optimization_state(const optimization_state_t *state)
307 libFIRM_opt = *state;