1 /* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
4 * Authors: Christian Schaefer
6 * irflag --- optimization flags
16 #include "firm_common.h"
19 /* 0 - don't do this optimization
20 1 - lets see, if there is a better graph */
21 int optimized = 1; /* Turn off all optimizations */
23 int opt_cse = 1; /* Hash the nodes */
24 int opt_global_cse = 0; /* Don't use block predecessor for comparison */
25 /* @@@ 0 solage code placement fehlt */
26 int opt_constant_folding = 1; /* Evaluate operations */
27 int opt_unreachable_code = 1; /* Bad node propagation */
28 int opt_control_flow_straightening = 1; /* */
29 int opt_control_flow_weak_simplification = 1; /* */
30 int opt_control_flow_strong_simplification = 1; /* */
31 int opt_critical_edges = 1;
32 int opt_dead_node_elimination = 1; /* Reclaim memory */
33 int opt_reassociation = 1; /* Reassociate nodes */
34 int opt_inline = 1; /* Do inlining transformation */
36 /* set the flags with set_flagname, get the flag with get_flagname */
38 set_opt_cse (int value)
49 void set_opt_global_cse (int value)
51 opt_global_cse = value;
54 int get_opt_global_cse (void)
56 return opt_global_cse;
60 set_opt_constant_folding (int value)
62 opt_constant_folding=value;
66 get_opt_constant_folding (void)
68 return opt_constant_folding;
72 set_opt_unreachable_code(int value)
74 opt_unreachable_code = value;
78 get_opt_unreachable_code(void)
80 return opt_unreachable_code;
83 INLINE void set_opt_control_flow(int value) {
84 set_opt_control_flow_straightening(value);
85 set_opt_control_flow_weak_simplification(value);
86 set_opt_control_flow_strong_simplification(value);
87 set_opt_critical_edges(value);
90 /* Performs Straightening */
91 void set_opt_control_flow_straightening(int value) {
92 opt_control_flow_straightening = value;
94 int get_opt_control_flow_straightening(void) {
95 return opt_control_flow_straightening;
97 /* Performs if simplifications in local optimizations. */
98 void set_opt_control_flow_weak_simplification(int value) {
99 opt_control_flow_weak_simplification = value;
101 int get_opt_control_flow_weak_simplification(void) {
102 return opt_control_flow_weak_simplification;
104 /* Performs strong if and loop simplification (in optimize_cf). */
105 void set_opt_control_flow_strong_simplification(int value) {
106 opt_control_flow_strong_simplification = value;
108 int get_opt_control_flow_strong_simplification(void) {
109 return opt_control_flow_strong_simplification;
112 void set_opt_critical_edges(int value) {
113 opt_critical_edges = value;
115 int get_opt_critical_edges(void) {
116 return opt_critical_edges;
121 set_opt_reassociation(int value)
123 opt_reassociation = value;
127 get_opt_reassociation(void)
129 return opt_reassociation;
133 set_opt_dead_node_elimination (int value)
135 opt_dead_node_elimination = value;
139 get_opt_dead_node_elimination (void)
141 return opt_dead_node_elimination;
145 set_optimize (int value)
157 INLINE void set_opt_inline (int value) {
161 INLINE int get_opt_inline (void) {