2 * Processor architecture specification.
3 * @author Sebastian Hack
33 /* Initialize the architecture environment struct. */
34 arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa_if, FILE *file_handle, be_main_env_t *main_env)
36 memset(env, 0, sizeof(*env));
37 env->isa = isa_if->init(file_handle);
38 env->isa->main_env = main_env;
42 arch_env_t *arch_env_push_irn_handler(arch_env_t *env,
43 const arch_irn_handler_t *handler)
45 assert(env->handlers_tos < ARCH_MAX_HANDLERS);
46 env->handlers[env->handlers_tos++] = handler;
50 const arch_irn_handler_t *arch_env_pop_irn_handler(arch_env_t *env)
52 assert(env->handlers_tos > 0 && env->handlers_tos <= ARCH_MAX_HANDLERS);
53 return env->handlers[--env->handlers_tos];
56 static const arch_irn_ops_t *fallback_irn_ops = NULL;
58 int arch_register_class_put(const arch_register_class_t *cls, bitset_t *bs)
62 for(i = 0, n = cls->n_regs; i < n; ++i)
70 * Get the isa responsible for a node.
71 * @param env The arch environment with the isa stack.
72 * @param irn The node to get the responsible isa for.
73 * @return The irn operations given by the responsible isa.
75 static INLINE const arch_irn_ops_t *
76 get_irn_ops(const arch_env_t *env, const ir_node *irn)
80 for(i = env->handlers_tos - 1; i >= 0; --i) {
81 const arch_irn_handler_t *handler = env->handlers[i];
82 const arch_irn_ops_t *ops = handler->get_irn_ops(handler, irn);
88 return fallback_irn_ops;
91 const arch_irn_ops_t *arch_get_irn_ops(const arch_env_t *env, const ir_node *irn) {
92 return get_irn_ops(env, irn);
95 const arch_register_req_t *arch_get_register_req(const arch_env_t *env,
96 arch_register_req_t *req, const ir_node *irn, int pos)
98 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
99 req->type = arch_register_req_type_none;
100 return ops->impl->get_irn_reg_req(ops, req, irn, pos);
103 void arch_set_frame_offset(const arch_env_t *env, ir_node *irn, int offset)
105 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
106 ops->impl->set_frame_offset(ops, irn, offset);
109 ir_entity *arch_get_frame_entity(const arch_env_t *env, ir_node *irn)
111 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
112 return ops->impl->get_frame_entity(ops, irn);
115 void arch_set_frame_entity(const arch_env_t *env, ir_node *irn, ir_entity *ent)
117 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
118 ops->impl->set_frame_entity(ops, irn, ent);
121 int arch_get_sp_bias(const arch_env_t *env, ir_node *irn)
123 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
124 return ops->impl->get_sp_bias(ops, irn);
127 arch_inverse_t *arch_get_inverse(const arch_env_t *env, const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obstack)
129 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
130 if(ops->impl->get_inverse) {
131 return ops->impl->get_inverse(ops, irn, i, inverse, obstack);
137 int arch_possible_memory_operand(const arch_env_t *env, const ir_node *irn, unsigned int i) {
138 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
139 if(ops->impl->possible_memory_operand) {
140 return ops->impl->possible_memory_operand(ops, irn, i);
146 void arch_perform_memory_operand(const arch_env_t *env, ir_node *irn, ir_node *spill, unsigned int i) {
147 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
148 if(ops->impl->perform_memory_operand) {
149 ops->impl->perform_memory_operand(ops, irn, spill, i);
155 int arch_get_op_estimated_cost(const arch_env_t *env, const ir_node *irn)
157 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
158 if(ops->impl->get_op_estimated_cost) {
159 return ops->impl->get_op_estimated_cost(ops, irn);
165 int arch_is_possible_memory_operand(const arch_env_t *env, const ir_node *irn, int i)
167 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
168 if(ops->impl->possible_memory_operand) {
169 return ops->impl->possible_memory_operand(ops, irn, i);
175 int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, int pos, bitset_t *bs)
177 arch_register_req_t local_req;
178 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
179 const arch_register_req_t *req = ops->impl->get_irn_reg_req(ops, &local_req, irn, pos);
181 if(req->type == arch_register_req_type_none) {
182 bitset_clear_all(bs);
186 if(arch_register_req_is(req, limited)) {
187 req->limited(req->limited_env, bs);
188 return bitset_popcnt(bs);
191 arch_register_class_put(req->cls, bs);
192 return req->cls->n_regs;
195 void arch_put_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls, bitset_t *bs)
199 for(i = 0; i < cls->n_regs; ++i) {
200 if(!arch_register_type_is(&cls->regs[i], ignore))
205 int arch_count_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls)
210 for(i = 0; i < cls->n_regs; ++i) {
211 if(!arch_register_type_is(&cls->regs[i], ignore))
218 int arch_is_register_operand(const arch_env_t *env,
219 const ir_node *irn, int pos)
221 arch_register_req_t local_req;
222 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
223 const arch_register_req_t *req = ops->impl->get_irn_reg_req(ops, &local_req, irn, pos);
227 int arch_reg_is_allocatable(const arch_env_t *env, const ir_node *irn,
228 int pos, const arch_register_t *reg)
230 arch_register_req_t req;
232 arch_get_register_req(env, &req, irn, pos);
234 if(req.type == arch_register_req_type_none)
237 if(arch_register_req_is(&req, limited)) {
238 bitset_t *bs = bitset_alloca(req.cls->n_regs);
239 req.limited(req.limited_env, bs);
240 return bitset_is_set(bs, arch_register_get_index(reg));
243 return req.cls == reg->reg_class;
246 const arch_register_class_t *
247 arch_get_irn_reg_class(const arch_env_t *env, const ir_node *irn, int pos)
249 arch_register_req_t local_req;
250 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
251 const arch_register_req_t *req = ops->impl->get_irn_reg_req(ops, &local_req, irn, pos);
252 return req ? req->cls : NULL;
255 extern const arch_register_t *
256 arch_get_irn_register(const arch_env_t *env, const ir_node *irn)
258 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
259 return ops->impl->get_irn_reg(ops, irn);
262 extern void arch_set_irn_register(const arch_env_t *env,
263 ir_node *irn, const arch_register_t *reg)
265 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
266 ops->impl->set_irn_reg(ops, irn, reg);
269 extern arch_irn_class_t arch_irn_classify(const arch_env_t *env, const ir_node *irn)
271 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
272 return ops->impl->classify(ops, irn);
275 extern arch_irn_flags_t arch_irn_get_flags(const arch_env_t *env, const ir_node *irn)
277 const arch_irn_ops_t *ops = get_irn_ops(env, irn);
278 return ops->impl->get_flags(ops, irn);
281 extern const char *arch_irn_flag_str(arch_irn_flags_t fl)
284 #define XXX(x) case arch_irn_flags_ ## x: return #x;
287 XXX(rematerializable);
295 extern char *arch_register_req_format(char *buf, size_t len, const arch_register_req_t *req)
298 snprintf(buf, len, "class: %s", req->cls->name);
300 if(arch_register_req_is(req, limited)) {
302 bitset_t *bs = bitset_alloca(req->cls->n_regs);
303 req->limited(req->limited_env, bs);
304 strncat(buf, " limited:", len);
305 bitset_foreach(bs, elm) {
306 strncat(buf, " ", len);
307 strncat(buf, req->cls->regs[elm].name, len);
311 if(arch_register_req_is(req, should_be_same)) {
312 ir_snprintf(tmp, sizeof(tmp), " same to: %+F", req->other_different);
313 strncat(buf, tmp, len);
316 if(arch_register_req_is(req, should_be_different)) {
317 ir_snprintf(tmp, sizeof(tmp), " different to: %+F", req->other_different);
318 strncat(buf, tmp, len);