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) |
47 optimization_state_t libFIRM_verb =
48 DISABLE(OPT_OPTIMIZED) |
50 DISABLE(OPT_GLOBAL_CSE) |
51 DISABLE(OPT_STRENGTH_RED) |
52 DISABLE(OPT_CONSTANT_FOLDING) |
53 DISABLE(OPT_REDUNDANT_LOADSTORE) |
54 DISABLE(OPT_UNREACHABLE_CODE) |
55 DISABLE(OPT_CONTROL_FLOW_STRAIGHTENING) |
56 DISABLE(OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION) |
57 DISABLE(OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION) |
58 DISABLE(OPT_CRITICAL_EDGES) |
59 DISABLE(OPT_DEAD_NODE_ELIMINATION) |
60 DISABLE(OPT_DEAD_METHOD_ELIMINATION) |
61 DISABLE(OPT_REASSOCIATION) |
63 DISABLE(OPT_DYN_METH_DISPATCH) |
64 DISABLE(OPT_NORMALIZE) |
65 DISABLE(OPT_TAIL_RECURSION) |
66 DISABLE(OPT_PRECISE_EXC_CONTEXT) |
69 /** The Firm verbosity level */
70 int firm_verbosity_level;
72 /* set the flags with set_flagname, get the flag with get_flagname */
73 void set_opt_cse (int value)
76 libFIRM_opt |= OPT_CSE;
78 libFIRM_opt &= ~OPT_CSE;
81 void set_opt_global_cse(int value)
84 libFIRM_opt |= OPT_GLOBAL_CSE;
86 libFIRM_opt &= ~OPT_GLOBAL_CSE;
89 void set_opt_strength_red (int value)
92 libFIRM_opt |= OPT_STRENGTH_RED;
94 libFIRM_opt &= ~OPT_STRENGTH_RED;
97 void set_opt_strength_red_verbose (int value)
100 libFIRM_verb |= OPT_STRENGTH_RED;
102 libFIRM_verb &= ~OPT_STRENGTH_RED;
106 set_opt_constant_folding(int value)
109 libFIRM_opt |= OPT_CONSTANT_FOLDING;
111 libFIRM_opt &= ~OPT_CONSTANT_FOLDING;
115 set_opt_redundant_LoadStore(int value) {
117 libFIRM_opt |= OPT_REDUNDANT_LOADSTORE;
119 libFIRM_opt &= ~OPT_REDUNDANT_LOADSTORE;
123 set_opt_unreachable_code(int value)
126 libFIRM_opt |= OPT_UNREACHABLE_CODE;
128 libFIRM_opt &= ~OPT_UNREACHABLE_CODE;
131 void set_opt_control_flow(int value)
133 set_opt_control_flow_straightening(value);
134 set_opt_control_flow_weak_simplification(value);
135 set_opt_control_flow_strong_simplification(value);
136 set_opt_critical_edges(value);
139 /* Performs Straightening */
140 void set_opt_control_flow_straightening(int value)
143 libFIRM_opt |= OPT_CONTROL_FLOW_STRAIGHTENING;
145 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRAIGHTENING;
148 /* Performs if simplifications in local optimizations. */
149 void set_opt_control_flow_weak_simplification(int value)
152 libFIRM_opt |= OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
154 libFIRM_opt &= ~OPT_CONTROL_FLOW_WEAK_SIMPLIFICATION;
157 /* Performs strong if and loop simplification (in optimize_cf). */
158 void set_opt_control_flow_strong_simplification(int value)
161 libFIRM_opt |= OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
163 libFIRM_opt &= ~OPT_CONTROL_FLOW_STRONG_SIMPLIFICATION;
166 void set_opt_critical_edges(int value)
169 libFIRM_opt |= OPT_CRITICAL_EDGES;
171 libFIRM_opt &= ~OPT_CRITICAL_EDGES;
174 void set_opt_reassociation(int value)
177 libFIRM_opt |= OPT_REASSOCIATION;
179 libFIRM_opt &= ~OPT_REASSOCIATION;
182 void set_opt_dead_node_elimination(int value)
185 libFIRM_opt |= OPT_DEAD_NODE_ELIMINATION;
187 libFIRM_opt &= ~OPT_DEAD_NODE_ELIMINATION;
190 void set_opt_dead_method_elimination (int value) {
192 libFIRM_opt |= OPT_DEAD_METHOD_ELIMINATION;
194 libFIRM_opt &= ~OPT_DEAD_METHOD_ELIMINATION;
197 void set_opt_dead_method_elimination_verbose (int value) {
199 libFIRM_verb |= OPT_DEAD_METHOD_ELIMINATION;
201 libFIRM_verb &= ~OPT_DEAD_METHOD_ELIMINATION;
204 void set_optimize(int value)
207 libFIRM_opt |= OPT_OPTIMIZED;
209 libFIRM_opt &= ~OPT_OPTIMIZED;
212 int get_optimize(void)
214 return get_opt_optimize();
218 void set_firm_verbosity (int value) {
219 firm_verbosity_level = value;
222 int (get_firm_verbosity) (void) {
223 return _get_firm_verbosity();
228 /* Enable/Disables inlining. */
229 void set_opt_inline(int value)
232 libFIRM_opt |= OPT_INLINE;
234 libFIRM_opt &= ~OPT_INLINE;
237 /* Enable/Disable optimization of dynamic method dispatch */
238 void set_opt_dyn_meth_dispatch (int value)
241 libFIRM_opt |= OPT_DYN_METH_DISPATCH;
243 libFIRM_opt &= ~OPT_DYN_METH_DISPATCH;
246 /* Enable/Disable normalizations of the firm representation. */
247 void set_opt_normalize(int value)
250 libFIRM_opt |= OPT_NORMALIZE;
252 libFIRM_opt &= ~OPT_NORMALIZE;
255 /* Enable/Disable optimization of tail-recursion calls. */
256 void set_opt_tail_recursion(int value)
259 libFIRM_opt |= OPT_TAIL_RECURSION;
261 libFIRM_opt &= ~OPT_TAIL_RECURSION;
264 /* Enable/Disable optimization of tail-recursion calls. */
265 void set_opt_tail_recursion_verbose(int value)
268 libFIRM_verb |= OPT_TAIL_RECURSION;
270 libFIRM_verb &= ~OPT_TAIL_RECURSION;
273 /* Enable/Disable precise exception context. */
274 void set_opt_precise_exc_context(int value)
276 #if PRECISE_EXC_CONTEXT
278 libFIRM_opt |= OPT_PRECISE_EXC_CONTEXT;
280 libFIRM_opt &= ~OPT_PRECISE_EXC_CONTEXT;
284 /* Save the current optimization state. */
285 void save_optimization_state(optimization_state_t *state)
287 *state = libFIRM_opt;
290 /* Restore the current optimization state. */
291 void restore_optimization_state(const optimization_state_t *state)
293 libFIRM_opt = *state;