2 * This file implements the creation of the achitecture specific firm opcodes
3 * and the coresponding node constructors for the mips assembler irg.
13 #include "irgraph_t.h"
19 #include "firm_common_t.h"
24 #include "../bearch.h"
26 #include "mips_nodes_attr.h"
27 #include "mips_new_nodes.h"
28 #include "gen_mips_regalloc_if.h"
32 /***********************************************************************************
35 * __| |_ _ _ __ ___ _ __ ___ _ __ _ _ __ | |_ ___ _ __| |_ __ _ ___ ___
36 * / _` | | | | '_ ` _ \| '_ \ / _ \ '__| | | '_ \| __/ _ \ '__| _/ _` |/ __/ _ \
37 * | (_| | |_| | | | | | | |_) | __/ | | | | | | || __/ | | || (_| | (_| __/
38 * \__,_|\__,_|_| |_| |_| .__/ \___|_| |_|_| |_|\__\___|_| |_| \__,_|\___\___|
41 ***********************************************************************************/
44 * Dumps the register requirements for either in or out.
46 static void dump_reg_req(FILE *F, ir_node *n, const arch_register_req_t **reqs, int inout) {
47 char *dir = inout ? "out" : "in";
48 int max = inout ? get_mips_n_res(n) : get_irn_arity(n);
52 memset(buf, 0, sizeof(buf));
55 for (i = 0; i < max; i++) {
56 fprintf(F, "%sreq #%d =", dir, i);
58 if (reqs[i]->type == arch_register_req_type_none) {
62 if (reqs[i]->type & arch_register_req_type_normal) {
63 fprintf(F, " %s", reqs[i]->cls->name);
66 if (reqs[i]->type & arch_register_req_type_limited) {
68 arch_register_req_format(buf, sizeof(buf), reqs[i], n));
71 if (reqs[i]->type & arch_register_req_type_should_be_same) {
72 ir_fprintf(F, " same as %+F", get_irn_n(n, reqs[i]->other_same));
75 if (reqs[i]->type & arch_register_req_type_should_be_different) {
76 ir_fprintf(F, " different from %+F", get_irn_n(n, reqs[i]->other_different));
84 fprintf(F, "%sreq = N/A\n", dir);
90 * Dumper interface for dumping mips nodes in vcg.
91 * @param n the node to dump
92 * @param F the output file
93 * @param reason indicates which kind of information should be dumped
94 * @return 0 on success or != 0 on failure
96 static int mips_dump_node(ir_node *n, FILE *F, dump_reason_t reason) {
102 const arch_register_req_t **reqs;
103 const arch_register_t **slots;
106 case dump_node_opcode_txt:
107 fprintf(F, "%s", get_irn_opname(n));
110 case dump_node_mode_txt:
111 mode = get_irn_mode(n);
114 fprintf(F, "[%s]", get_mode_name(mode));
117 fprintf(F, "[?NOMODE?]");
121 case dump_node_nodeattr_txt:
123 /* TODO: dump some attributes which should show up */
124 /* in node name in dump (e.g. consts or the like) */
128 case dump_node_info_txt:
129 attr = get_mips_attr(n);
130 fprintf(F, "=== mips attr begin ===\n");
132 /* dump IN requirements */
133 if (get_irn_arity(n) > 0) {
134 reqs = get_mips_in_req_all(n);
135 dump_reg_req(F, n, reqs, 0);
138 /* dump OUT requirements */
139 if (attr->n_res > 0) {
140 reqs = get_mips_out_req_all(n);
141 dump_reg_req(F, n, reqs, 1);
144 /* dump assigned registers */
145 slots = get_mips_slots(n);
146 if (slots && attr->n_res > 0) {
147 for (i = 0; i < attr->n_res; i++) {
149 fprintf(F, "reg #%d = %s\n", i, slots[i]->name);
152 fprintf(F, "reg #%d = n/a\n", i);
159 fprintf(F, "n_res = %d\n", get_mips_n_res(n));
162 fprintf(F, "flags =");
163 if (attr->flags == arch_irn_flags_none) {
167 if (attr->flags & arch_irn_flags_dont_spill) {
168 fprintf(F, " unspillable");
170 if (attr->flags & arch_irn_flags_rematerializable) {
171 fprintf(F, " remat");
173 if (attr->flags & arch_irn_flags_ignore) {
174 fprintf(F, " ignore");
177 fprintf(F, " (%d)\n", attr->flags);
179 if(attr->modes.load_store_mode != NULL) {
180 fprintf(F, " load_store_mode %s\n", get_mode_name(attr->modes.load_store_mode));
182 if(attr->stack_entity != NULL) {
183 fprintf(F, " stack entity %s\n", get_entity_name(attr->stack_entity));
185 if(attr->tv != NULL) {
186 tarval_snprintf(buf, sizeof(buf), attr->tv);
187 fprintf(F, " tarval %s\n", buf);
189 if(attr->symconst_id != NULL) {
190 fprintf(F, " symconst '%s'\n", get_id_str(attr->symconst_id));
193 fprintf(F, "=== mips attr end ===\n");
194 /* end of: case dump_node_info_txt */
204 /***************************************************************************************************
206 * | | | | | | / / | | | | | | | |
207 * __ _| |_| |_ _ __ ___ ___| |_ / /_ _ ___| |_ _ __ ___ ___| |_| |__ ___ __| |___
208 * / _` | __| __| '__| / __|/ _ \ __| / / _` |/ _ \ __| | '_ ` _ \ / _ \ __| '_ \ / _ \ / _` / __|
209 * | (_| | |_| |_| | \__ \ __/ |_ / / (_| | __/ |_ | | | | | | __/ |_| | | | (_) | (_| \__ \
210 * \__,_|\__|\__|_| |___/\___|\__/_/ \__, |\___|\__| |_| |_| |_|\___|\__|_| |_|\___/ \__,_|___/
213 ***************************************************************************************************/
216 * Wraps get_irn_generic_attr() as it takes no const ir_node, so we need to do a cast.
217 * Firm was made by people hating const :-(
219 mips_attr_t *get_mips_attr(const ir_node *node) {
220 assert(is_mips_irn(node) && "need mips node to get attributes");
221 return (mips_attr_t *)get_irn_generic_attr((ir_node *)node);
225 * Returns the argument register requirements of a mips node.
227 const arch_register_req_t **get_mips_in_req_all(const ir_node *node) {
228 mips_attr_t *attr = get_mips_attr(node);
233 * Returns the result register requirements of an mips node.
235 const arch_register_req_t **get_mips_out_req_all(const ir_node *node) {
236 mips_attr_t *attr = get_mips_attr(node);
237 return attr->out_req;
241 * Returns the argument register requirement at position pos of an mips node.
243 const arch_register_req_t *get_mips_in_req(const ir_node *node, int pos) {
244 mips_attr_t *attr = get_mips_attr(node);
245 return attr->in_req[pos];
249 * Returns the result register requirement at position pos of an mips node.
251 const arch_register_req_t *get_mips_out_req(const ir_node *node, int pos) {
252 mips_attr_t *attr = get_mips_attr(node);
253 return attr->out_req[pos];
257 * Sets the OUT register requirements at position pos.
259 void set_mips_req_out(ir_node *node, const arch_register_req_t *req, int pos) {
260 mips_attr_t *attr = get_mips_attr(node);
261 attr->out_req[pos] = req;
265 * Sets the IN register requirements at position pos.
267 void set_mips_req_in(ir_node *node, const arch_register_req_t *req, int pos) {
268 mips_attr_t *attr = get_mips_attr(node);
269 attr->in_req[pos] = req;
273 * Returns the register flag of an mips node.
275 arch_irn_flags_t get_mips_flags(const ir_node *node) {
276 mips_attr_t *attr = get_mips_attr(node);
281 * Sets the register flag of an mips node.
283 void set_mips_flags(const ir_node *node, arch_irn_flags_t flags) {
284 mips_attr_t *attr = get_mips_attr(node);
289 * Returns the result register slots of an mips node.
291 const arch_register_t **get_mips_slots(const ir_node *node) {
292 mips_attr_t *attr = get_mips_attr(node);
297 * Returns the name of the OUT register at position pos.
299 const char *get_mips_out_reg_name(const ir_node *node, int pos) {
300 mips_attr_t *attr = get_mips_attr(node);
302 assert(is_mips_irn(node) && "Not an mips node.");
303 assert(pos < attr->n_res && "Invalid OUT position.");
304 assert(attr->slots[pos] && "No register assigned");
306 return arch_register_get_name(attr->slots[pos]);
310 * Returns the index of the OUT register at position pos within its register class.
312 int get_mips_out_regnr(const ir_node *node, int pos) {
313 mips_attr_t *attr = get_mips_attr(node);
315 assert(is_mips_irn(node) && "Not an mips node.");
316 assert(pos < attr->n_res && "Invalid OUT position.");
317 assert(attr->slots[pos] && "No register assigned");
319 return arch_register_get_index(attr->slots[pos]);
323 * Returns the OUT register at position pos.
325 const arch_register_t *get_mips_out_reg(const ir_node *node, int pos) {
326 mips_attr_t *attr = get_mips_attr(node);
328 assert(is_mips_irn(node) && "Not an mips node.");
329 assert(pos < attr->n_res && "Invalid OUT position.");
330 assert(attr->slots[pos] && "No register assigned");
332 return attr->slots[pos];
336 * Sets the number of results.
338 void set_mips_n_res(ir_node *node, int n_res) {
339 mips_attr_t *attr = get_mips_attr(node);
344 * Returns the number of results.
346 int get_mips_n_res(const ir_node *node) {
347 mips_attr_t *attr = get_mips_attr(node);
352 * Initializes the nodes attributes.
354 void init_mips_attributes(ir_node *node, arch_irn_flags_t flags, const arch_register_req_t **in_reqs,
355 const arch_register_req_t **out_reqs,
356 const be_execution_unit_t ***execution_units,
357 int n_res, unsigned latency)
359 mips_attr_t *attr = get_mips_attr(node);
362 attr->out_req = out_reqs;
365 attr->in_req = in_reqs;
367 memset((void *)attr->slots, 0, n_res * sizeof(attr->slots[0]));
370 /************************************************************************
372 * |_ _| ___|__ | | __| (_)_ __ __ _
373 * | || |_ / _ \| |/ _` | | '_ \ / _` |
374 * | || _| (_) | | (_| | | | | | (_| |
375 * |___|_| \___/|_|\__,_|_|_| |_|\__, |
377 ************************************************************************/
379 // test if a tarval can be expressed in a 16bit immediate value
380 static int is_tarval_16(ir_node* node)
382 mips_attr_t *attr = get_mips_attr(node);
383 tarval* tv = attr->tv;
384 long val = get_tarval_long(tv);
385 if(get_mode_sign(get_irn_mode(node))) {
386 if(val < -32768 || val > 32767)
389 unsigned long uval = (unsigned long) val;
397 #define MIPS_MAKE_IFOLDING_TRANSFORM(srcnode, inode, commutative) \
398 ir_node *mips_transform_##srcnode(ir_node* node) \
400 ir_node* op1 = get_irn_n(node, 0); \
401 ir_node* op2 = get_irn_n(node, 1); \
403 if(op1 == NULL || op2 == NULL) \
406 if((is_mips_lli(op2) || is_mips_lui(op2)) && is_tarval_16(op2)) { \
407 mips_attr_t *attr, *op_attr = get_mips_attr(op2); \
408 long val = get_tarval_long(op_attr->tv); \
409 result = new_rd_mips_##inode(get_irn_dbg_info(node), get_irn_irg(node), get_nodes_block(node), \
411 attr = get_mips_attr(result); \
412 attr->tv = new_tarval_from_long(val, get_mode_sign(get_irn_mode(node)) ? mode_Hs : mode_Hu); \
416 if(commutative && (is_mips_lli(op1) || is_mips_lui(op1)) && is_tarval_16(op1)) { \
417 mips_attr_t *attr, *op_attr = get_mips_attr(op1); \
418 long val = get_tarval_long(op_attr->tv); \
419 result = new_rd_mips_##inode(get_irn_dbg_info(node), get_irn_irg(node), get_nodes_block(node), \
421 attr = get_mips_attr(result); \
422 attr->tv = new_tarval_from_long(val, get_mode_sign(get_irn_mode(node)) ? mode_Hs : mode_Hu); \
429 MIPS_MAKE_IFOLDING_TRANSFORM(addu, addiu, 1)
430 MIPS_MAKE_IFOLDING_TRANSFORM(and, andi, 1)
431 MIPS_MAKE_IFOLDING_TRANSFORM(or, ori, 1)
432 MIPS_MAKE_IFOLDING_TRANSFORM(sra, srai, 0)
433 MIPS_MAKE_IFOLDING_TRANSFORM(xor, xori, 1)
434 MIPS_MAKE_IFOLDING_TRANSFORM(sl, sli, 0)
435 MIPS_MAKE_IFOLDING_TRANSFORM(sr, sri, 0)
436 MIPS_MAKE_IFOLDING_TRANSFORM(slt, slti, 0)
438 void mips_init_opcode_transforms(void) {
439 op_mips_addu->ops.transform_node = mips_transform_addu;
440 op_mips_and->ops.transform_node = mips_transform_and;
441 op_mips_or->ops.transform_node = mips_transform_or;
442 op_mips_sra->ops.transform_node = mips_transform_sra;
443 op_mips_xor->ops.transform_node = mips_transform_xor;
444 op_mips_sl->ops.transform_node = mips_transform_sl;
445 op_mips_sr->ops.transform_node = mips_transform_sr;
446 op_mips_slt->ops.transform_node = mips_transform_slt;
449 /***************************************************************************************
452 * _ __ ___ __| | ___ ___ ___ _ __ ___| |_ _ __ _ _ ___| |_ ___ _ __ ___
453 * | '_ \ / _ \ / _` |/ _ \ / __/ _ \| '_ \/ __| __| '__| | | |/ __| __/ _ \| '__/ __|
454 * | | | | (_) | (_| | __/ | (_| (_) | | | \__ \ |_| | | |_| | (__| || (_) | | \__ \
455 * |_| |_|\___/ \__,_|\___| \___\___/|_| |_|___/\__|_| \__,_|\___|\__\___/|_| |___/
457 ***************************************************************************************/
459 /* Include the generated constructor functions */
460 #include "gen_mips_new_nodes.c.inl"