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51b86113 | 1 | /* read-rtl-function.c - Reader for RTL function dumps |
99dee823 | 2 | Copyright (C) 2016-2021 Free Software Foundation, Inc. |
51b86113 DM |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 3, or (at your option) any later | |
9 | version. | |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GCC; see the file COPYING3. If not see | |
18 | <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "config.h" | |
21 | #include "system.h" | |
22 | #include "coretypes.h" | |
23 | #include "target.h" | |
24 | #include "tree.h" | |
25 | #include "diagnostic.h" | |
26 | #include "read-md.h" | |
27 | #include "rtl.h" | |
28 | #include "cfghooks.h" | |
29 | #include "stringpool.h" | |
30 | #include "function.h" | |
31 | #include "tree-cfg.h" | |
32 | #include "cfg.h" | |
33 | #include "basic-block.h" | |
34 | #include "cfgrtl.h" | |
35 | #include "memmodel.h" | |
36 | #include "emit-rtl.h" | |
37 | #include "cgraph.h" | |
38 | #include "tree-pass.h" | |
39 | #include "toplev.h" | |
40 | #include "varasm.h" | |
41 | #include "read-rtl-function.h" | |
42 | #include "selftest.h" | |
43 | #include "selftest-rtl.h" | |
bd785b44 RS |
44 | #include "regs.h" |
45 | #include "function-abi.h" | |
51b86113 DM |
46 | |
47 | /* Forward decls. */ | |
48 | class function_reader; | |
49 | class fixup; | |
50 | ||
51 | /* Edges are recorded when parsing the "insn-chain" directive, | |
52 | and created at the end when all the blocks ought to exist. | |
53 | This struct records an "edge-from" or "edge-to" directive seen | |
54 | at LOC, which will be turned into an actual CFG edge once | |
55 | the "insn-chain" is fully parsed. */ | |
56 | ||
6c1dae73 | 57 | class deferred_edge |
51b86113 | 58 | { |
6c1dae73 | 59 | public: |
51b86113 DM |
60 | deferred_edge (file_location loc, int src_bb_idx, int dest_bb_idx, int flags) |
61 | : m_loc (loc), m_src_bb_idx (src_bb_idx), m_dest_bb_idx (dest_bb_idx), | |
62 | m_flags (flags) | |
63 | {} | |
64 | ||
65 | file_location m_loc; | |
66 | int m_src_bb_idx; | |
67 | int m_dest_bb_idx; | |
68 | int m_flags; | |
69 | }; | |
70 | ||
71 | /* Subclass of rtx_reader for reading function dumps. */ | |
72 | ||
73 | class function_reader : public rtx_reader | |
74 | { | |
75 | public: | |
76 | function_reader (); | |
77 | ~function_reader (); | |
78 | ||
79 | /* Overridden vfuncs of class md_reader. */ | |
80 | void handle_unknown_directive (file_location, const char *) FINAL OVERRIDE; | |
81 | ||
82 | /* Overridden vfuncs of class rtx_reader. */ | |
83 | rtx read_rtx_operand (rtx x, int idx) FINAL OVERRIDE; | |
84 | void handle_any_trailing_information (rtx x) FINAL OVERRIDE; | |
85 | rtx postprocess (rtx) FINAL OVERRIDE; | |
86 | const char *finalize_string (char *stringbuf) FINAL OVERRIDE; | |
87 | ||
88 | rtx_insn **get_insn_by_uid (int uid); | |
89 | tree parse_mem_expr (const char *desc); | |
90 | ||
91 | private: | |
92 | void parse_function (); | |
93 | void create_function (); | |
94 | void parse_param (); | |
95 | void parse_insn_chain (); | |
96 | void parse_block (); | |
97 | int parse_bb_idx (); | |
98 | void parse_edge (basic_block block, bool from); | |
99 | rtx_insn *parse_insn (file_location loc, const char *name); | |
100 | void parse_cfg (file_location loc); | |
101 | void parse_crtl (file_location loc); | |
102 | void create_edges (); | |
103 | ||
104 | int parse_enum_value (int num_values, const char *const *strings); | |
105 | ||
106 | void read_rtx_operand_u (rtx x, int idx); | |
107 | void read_rtx_operand_i_or_n (rtx x, int idx, char format_char); | |
108 | rtx read_rtx_operand_r (rtx x); | |
57517ca4 | 109 | rtx extra_parsing_for_operand_code_0 (rtx x, int idx); |
51b86113 DM |
110 | |
111 | void add_fixup_insn_uid (file_location loc, rtx insn, int operand_idx, | |
112 | int insn_uid); | |
113 | ||
114 | void add_fixup_note_insn_basic_block (file_location loc, rtx insn, | |
115 | int operand_idx, int bb_idx); | |
116 | ||
117 | void add_fixup_source_location (file_location loc, rtx_insn *insn, | |
63841daf | 118 | const char *filename, int lineno, int colno); |
51b86113 DM |
119 | |
120 | void add_fixup_expr (file_location loc, rtx x, | |
121 | const char *desc); | |
122 | ||
123 | rtx consolidate_singletons (rtx x); | |
124 | rtx parse_rtx (); | |
125 | void maybe_read_location (rtx_insn *insn); | |
126 | ||
127 | void handle_insn_uids (); | |
128 | void apply_fixups (); | |
129 | ||
130 | private: | |
131 | struct uid_hash : int_hash <int, -1, -2> {}; | |
132 | hash_map<uid_hash, rtx_insn *> m_insns_by_uid; | |
133 | auto_vec<fixup *> m_fixups; | |
134 | rtx_insn *m_first_insn; | |
135 | auto_vec<tree> m_fake_scope; | |
136 | char *m_name; | |
137 | bool m_have_crtl_directive; | |
138 | basic_block m_bb_to_insert_after; | |
139 | auto_vec <deferred_edge> m_deferred_edges; | |
140 | int m_highest_bb_idx; | |
141 | }; | |
142 | ||
143 | /* Abstract base class for recording post-processing steps that must be | |
144 | done after reading a .rtl file. */ | |
145 | ||
146 | class fixup | |
147 | { | |
148 | public: | |
149 | /* Constructor for a fixup at LOC affecting X. */ | |
150 | fixup (file_location loc, rtx x) | |
151 | : m_loc (loc), m_rtx (x) | |
152 | {} | |
153 | virtual ~fixup () {} | |
154 | ||
155 | virtual void apply (function_reader *reader) const = 0; | |
156 | ||
157 | protected: | |
158 | file_location m_loc; | |
159 | rtx m_rtx; | |
160 | }; | |
161 | ||
162 | /* An abstract subclass of fixup for post-processing steps that | |
163 | act on a specific operand of a specific instruction. */ | |
164 | ||
165 | class operand_fixup : public fixup | |
166 | { | |
167 | public: | |
168 | /* Constructor for a fixup at LOC affecting INSN's operand | |
169 | with index OPERAND_IDX. */ | |
170 | operand_fixup (file_location loc, rtx insn, int operand_idx) | |
171 | : fixup (loc, insn), m_operand_idx (operand_idx) | |
172 | {} | |
173 | ||
174 | protected: | |
175 | int m_operand_idx; | |
176 | }; | |
177 | ||
178 | /* A concrete subclass of operand_fixup: fixup an rtx_insn * | |
179 | field based on an integer UID. */ | |
180 | ||
181 | class fixup_insn_uid : public operand_fixup | |
182 | { | |
183 | public: | |
184 | /* Constructor for a fixup at LOC affecting INSN's operand | |
185 | with index OPERAND_IDX. Record INSN_UID as the uid. */ | |
186 | fixup_insn_uid (file_location loc, rtx insn, int operand_idx, int insn_uid) | |
187 | : operand_fixup (loc, insn, operand_idx), | |
188 | m_insn_uid (insn_uid) | |
189 | {} | |
190 | ||
191 | void apply (function_reader *reader) const; | |
192 | ||
193 | private: | |
194 | int m_insn_uid; | |
195 | }; | |
196 | ||
197 | /* A concrete subclass of operand_fixup: fix up a | |
198 | NOTE_INSN_BASIC_BLOCK based on an integer block ID. */ | |
199 | ||
200 | class fixup_note_insn_basic_block : public operand_fixup | |
201 | { | |
202 | public: | |
203 | fixup_note_insn_basic_block (file_location loc, rtx insn, int operand_idx, | |
204 | int bb_idx) | |
205 | : operand_fixup (loc, insn, operand_idx), | |
206 | m_bb_idx (bb_idx) | |
207 | {} | |
208 | ||
209 | void apply (function_reader *reader) const; | |
210 | ||
211 | private: | |
212 | int m_bb_idx; | |
213 | }; | |
214 | ||
215 | /* A concrete subclass of fixup (not operand_fixup): fix up | |
216 | the expr of an rtx (REG or MEM) based on a textual dump. */ | |
217 | ||
218 | class fixup_expr : public fixup | |
219 | { | |
220 | public: | |
221 | fixup_expr (file_location loc, rtx x, const char *desc) | |
222 | : fixup (loc, x), | |
223 | m_desc (xstrdup (desc)) | |
224 | {} | |
225 | ||
226 | ~fixup_expr () { free (m_desc); } | |
227 | ||
228 | void apply (function_reader *reader) const; | |
229 | ||
230 | private: | |
231 | char *m_desc; | |
232 | }; | |
233 | ||
234 | /* Return a textual description of the operand of INSN with | |
235 | index OPERAND_IDX. */ | |
236 | ||
237 | static const char * | |
238 | get_operand_name (rtx insn, int operand_idx) | |
239 | { | |
240 | gcc_assert (is_a <rtx_insn *> (insn)); | |
241 | switch (operand_idx) | |
242 | { | |
243 | case 0: | |
244 | return "PREV_INSN"; | |
245 | case 1: | |
246 | return "NEXT_INSN"; | |
247 | default: | |
248 | return NULL; | |
249 | } | |
250 | } | |
251 | ||
252 | /* Fixup an rtx_insn * field based on an integer UID, as read by READER. */ | |
253 | ||
254 | void | |
255 | fixup_insn_uid::apply (function_reader *reader) const | |
256 | { | |
257 | rtx_insn **insn_from_uid = reader->get_insn_by_uid (m_insn_uid); | |
258 | if (insn_from_uid) | |
259 | XEXP (m_rtx, m_operand_idx) = *insn_from_uid; | |
260 | else | |
261 | { | |
262 | const char *op_name = get_operand_name (m_rtx, m_operand_idx); | |
263 | if (op_name) | |
264 | error_at (m_loc, | |
265 | "insn with UID %i not found for operand %i (`%s') of insn %i", | |
266 | m_insn_uid, m_operand_idx, op_name, INSN_UID (m_rtx)); | |
267 | else | |
268 | error_at (m_loc, | |
269 | "insn with UID %i not found for operand %i of insn %i", | |
270 | m_insn_uid, m_operand_idx, INSN_UID (m_rtx)); | |
271 | } | |
272 | } | |
273 | ||
274 | /* Fix up a NOTE_INSN_BASIC_BLOCK based on an integer block ID. */ | |
275 | ||
276 | void | |
277 | fixup_note_insn_basic_block::apply (function_reader *) const | |
278 | { | |
279 | basic_block bb = BASIC_BLOCK_FOR_FN (cfun, m_bb_idx); | |
280 | gcc_assert (bb); | |
281 | NOTE_BASIC_BLOCK (m_rtx) = bb; | |
282 | } | |
283 | ||
284 | /* Fix up the expr of an rtx (REG or MEM) based on a textual dump | |
285 | read by READER. */ | |
286 | ||
287 | void | |
288 | fixup_expr::apply (function_reader *reader) const | |
289 | { | |
290 | tree expr = reader->parse_mem_expr (m_desc); | |
291 | switch (GET_CODE (m_rtx)) | |
292 | { | |
293 | case REG: | |
294 | set_reg_attrs_for_decl_rtl (expr, m_rtx); | |
295 | break; | |
296 | case MEM: | |
297 | set_mem_expr (m_rtx, expr); | |
298 | break; | |
299 | default: | |
300 | gcc_unreachable (); | |
301 | } | |
302 | } | |
303 | ||
304 | /* Strip trailing whitespace from DESC. */ | |
305 | ||
306 | static void | |
307 | strip_trailing_whitespace (char *desc) | |
308 | { | |
309 | char *terminator = desc + strlen (desc); | |
310 | while (desc < terminator) | |
311 | { | |
312 | terminator--; | |
313 | if (ISSPACE (*terminator)) | |
314 | *terminator = '\0'; | |
315 | else | |
316 | break; | |
317 | } | |
318 | } | |
319 | ||
320 | /* Return the numeric value n for GET_NOTE_INSN_NAME (n) for STRING, | |
321 | or fail if STRING isn't recognized. */ | |
322 | ||
323 | static int | |
324 | parse_note_insn_name (const char *string) | |
325 | { | |
326 | for (int i = 0; i < NOTE_INSN_MAX; i++) | |
01512446 | 327 | if (strcmp (string, GET_NOTE_INSN_NAME (i)) == 0) |
51b86113 DM |
328 | return i; |
329 | fatal_with_file_and_line ("unrecognized NOTE_INSN name: `%s'", string); | |
330 | } | |
331 | ||
332 | /* Return the register number for NAME, or return -1 if it isn't | |
333 | recognized. */ | |
334 | ||
335 | static int | |
336 | lookup_reg_by_dump_name (const char *name) | |
337 | { | |
338 | for (int i = 0; i < FIRST_PSEUDO_REGISTER; i++) | |
339 | if (reg_names[i][0] | |
340 | && ! strcmp (name, reg_names[i])) | |
341 | return i; | |
342 | ||
343 | /* Also lookup virtuals. */ | |
344 | if (!strcmp (name, "virtual-incoming-args")) | |
345 | return VIRTUAL_INCOMING_ARGS_REGNUM; | |
346 | if (!strcmp (name, "virtual-stack-vars")) | |
347 | return VIRTUAL_STACK_VARS_REGNUM; | |
348 | if (!strcmp (name, "virtual-stack-dynamic")) | |
349 | return VIRTUAL_STACK_DYNAMIC_REGNUM; | |
350 | if (!strcmp (name, "virtual-outgoing-args")) | |
351 | return VIRTUAL_OUTGOING_ARGS_REGNUM; | |
352 | if (!strcmp (name, "virtual-cfa")) | |
353 | return VIRTUAL_CFA_REGNUM; | |
354 | if (!strcmp (name, "virtual-preferred-stack-boundary")) | |
355 | return VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM; | |
356 | /* TODO: handle "virtual-reg-%d". */ | |
357 | ||
358 | /* In compact mode, pseudos are printed with '< and '>' wrapping the regno, | |
359 | offseting it by (LAST_VIRTUAL_REGISTER + 1), so that the | |
360 | first non-virtual pseudo is dumped as "<0>". */ | |
361 | if (name[0] == '<' && name[strlen (name) - 1] == '>') | |
362 | { | |
363 | int dump_num = atoi (name + 1); | |
364 | return dump_num + LAST_VIRTUAL_REGISTER + 1; | |
365 | } | |
366 | ||
367 | /* Not found. */ | |
368 | return -1; | |
369 | } | |
370 | ||
371 | /* class function_reader : public rtx_reader */ | |
372 | ||
373 | /* function_reader's constructor. */ | |
374 | ||
375 | function_reader::function_reader () | |
376 | : rtx_reader (true), | |
377 | m_first_insn (NULL), | |
378 | m_name (NULL), | |
379 | m_have_crtl_directive (false), | |
380 | m_bb_to_insert_after (NULL), | |
381 | m_highest_bb_idx (EXIT_BLOCK) | |
382 | { | |
383 | } | |
384 | ||
385 | /* function_reader's destructor. */ | |
386 | ||
387 | function_reader::~function_reader () | |
388 | { | |
389 | int i; | |
390 | fixup *f; | |
391 | FOR_EACH_VEC_ELT (m_fixups, i, f) | |
392 | delete f; | |
393 | ||
394 | free (m_name); | |
395 | } | |
396 | ||
397 | /* Implementation of rtx_reader::handle_unknown_directive, | |
398 | for parsing the remainder of a directive with name NAME | |
399 | seen at START_LOC. | |
400 | ||
401 | Require a top-level "function" directive, as emitted by | |
402 | print_rtx_function, and parse it. */ | |
403 | ||
404 | void | |
405 | function_reader::handle_unknown_directive (file_location start_loc, | |
406 | const char *name) | |
407 | { | |
408 | if (strcmp (name, "function")) | |
409 | fatal_at (start_loc, "expected 'function'"); | |
410 | ||
cbf6ad9d ML |
411 | if (flag_lto) |
412 | error ("%<__RTL%> function cannot be compiled with %<-flto%>"); | |
413 | ||
51b86113 DM |
414 | parse_function (); |
415 | } | |
416 | ||
417 | /* Parse the output of print_rtx_function (or hand-written data in the | |
418 | same format), having already parsed the "(function" heading, and | |
419 | finishing immediately before the final ")". | |
420 | ||
421 | The "param" and "crtl" clauses are optional. */ | |
422 | ||
423 | void | |
424 | function_reader::parse_function () | |
425 | { | |
426 | m_name = xstrdup (read_string (0)); | |
427 | ||
428 | create_function (); | |
429 | ||
430 | while (1) | |
431 | { | |
432 | int c = read_skip_spaces (); | |
433 | if (c == ')') | |
434 | { | |
435 | unread_char (c); | |
436 | break; | |
437 | } | |
438 | unread_char (c); | |
439 | require_char ('('); | |
440 | file_location loc = get_current_location (); | |
441 | struct md_name directive; | |
442 | read_name (&directive); | |
443 | if (strcmp (directive.string, "param") == 0) | |
444 | parse_param (); | |
445 | else if (strcmp (directive.string, "insn-chain") == 0) | |
446 | parse_insn_chain (); | |
447 | else if (strcmp (directive.string, "crtl") == 0) | |
448 | parse_crtl (loc); | |
449 | else | |
450 | fatal_with_file_and_line ("unrecognized directive: %s", | |
451 | directive.string); | |
452 | } | |
453 | ||
454 | handle_insn_uids (); | |
455 | ||
456 | apply_fixups (); | |
457 | ||
458 | /* Rebuild the JUMP_LABEL field of any JUMP_INSNs in the chain, and the | |
459 | LABEL_NUSES of any CODE_LABELs. | |
460 | ||
461 | This has to happen after apply_fixups, since only after then do | |
462 | LABEL_REFs have their label_ref_label set up. */ | |
463 | rebuild_jump_labels (get_insns ()); | |
464 | ||
465 | crtl->init_stack_alignment (); | |
466 | } | |
467 | ||
468 | /* Set up state for the function *before* fixups are applied. | |
469 | ||
470 | Create "cfun" and a decl for the function. | |
471 | By default, every function decl is hardcoded as | |
472 | int test_1 (int i, int j, int k); | |
473 | Set up various other state: | |
474 | - the cfg and basic blocks (edges are created later, *after* fixups | |
475 | are applied). | |
476 | - add the function to the callgraph. */ | |
477 | ||
478 | void | |
479 | function_reader::create_function () | |
480 | { | |
481 | /* We start in cfgrtl mode, rather than cfglayout mode. */ | |
482 | rtl_register_cfg_hooks (); | |
483 | ||
c2e84327 DM |
484 | /* When run from selftests or "rtl1", cfun is NULL. |
485 | When run from "cc1" for a C function tagged with __RTL, cfun is the | |
486 | tagged function. */ | |
487 | if (!cfun) | |
488 | { | |
489 | tree fn_name = get_identifier (m_name ? m_name : "test_1"); | |
490 | tree int_type = integer_type_node; | |
491 | tree return_type = int_type; | |
492 | tree arg_types[3] = {int_type, int_type, int_type}; | |
493 | tree fn_type = build_function_type_array (return_type, 3, arg_types); | |
494 | tree fndecl = build_decl (UNKNOWN_LOCATION, FUNCTION_DECL, fn_name, fn_type); | |
495 | tree resdecl = build_decl (UNKNOWN_LOCATION, RESULT_DECL, NULL_TREE, | |
496 | return_type); | |
497 | DECL_ARTIFICIAL (resdecl) = 1; | |
498 | DECL_IGNORED_P (resdecl) = 1; | |
499 | DECL_RESULT (fndecl) = resdecl; | |
500 | allocate_struct_function (fndecl, false); | |
501 | /* This sets cfun. */ | |
502 | current_function_decl = fndecl; | |
503 | } | |
504 | ||
505 | gcc_assert (cfun); | |
506 | gcc_assert (current_function_decl); | |
507 | tree fndecl = current_function_decl; | |
508 | ||
509 | /* Mark this function as being specified as __RTL. */ | |
510 | cfun->curr_properties |= PROP_rtl; | |
511 | ||
512 | /* cc1 normally inits DECL_INITIAL (fndecl) to be error_mark_node. | |
513 | Create a dummy block for it. */ | |
514 | DECL_INITIAL (fndecl) = make_node (BLOCK); | |
51b86113 DM |
515 | |
516 | cfun->curr_properties = (PROP_cfg | PROP_rtl); | |
517 | ||
518 | /* Do we need this to force cgraphunit.c to output the function? */ | |
519 | DECL_EXTERNAL (fndecl) = 0; | |
520 | DECL_PRESERVE_P (fndecl) = 1; | |
521 | ||
522 | /* Add to cgraph. */ | |
523 | cgraph_node::finalize_function (fndecl, false); | |
524 | ||
525 | /* Create bare-bones cfg. This creates the entry and exit blocks. */ | |
526 | init_empty_tree_cfg_for_function (cfun); | |
527 | ENTRY_BLOCK_PTR_FOR_FN (cfun)->flags |= BB_RTL; | |
528 | EXIT_BLOCK_PTR_FOR_FN (cfun)->flags |= BB_RTL; | |
529 | init_rtl_bb_info (ENTRY_BLOCK_PTR_FOR_FN (cfun)); | |
530 | init_rtl_bb_info (EXIT_BLOCK_PTR_FOR_FN (cfun)); | |
531 | m_bb_to_insert_after = ENTRY_BLOCK_PTR_FOR_FN (cfun); | |
532 | ||
533 | } | |
534 | ||
700d4cb0 | 535 | /* Look within the params of FNDECL for a param named NAME. |
51b86113 DM |
536 | Return NULL_TREE if one isn't found. */ |
537 | ||
538 | static tree | |
539 | find_param_by_name (tree fndecl, const char *name) | |
540 | { | |
541 | for (tree arg = DECL_ARGUMENTS (fndecl); arg; arg = TREE_CHAIN (arg)) | |
a01f151f | 542 | if (id_equal (DECL_NAME (arg), name)) |
51b86113 DM |
543 | return arg; |
544 | return NULL_TREE; | |
545 | } | |
546 | ||
547 | /* Parse the content of a "param" directive, having already parsed the | |
548 | "(param". Consume the trailing ')'. */ | |
549 | ||
550 | void | |
551 | function_reader::parse_param () | |
552 | { | |
553 | require_char_ws ('"'); | |
554 | file_location loc = get_current_location (); | |
555 | char *name = read_quoted_string (); | |
556 | ||
557 | /* Lookup param by name. */ | |
558 | tree t_param = find_param_by_name (cfun->decl, name); | |
559 | if (!t_param) | |
560 | fatal_at (loc, "param not found: %s", name); | |
561 | ||
562 | /* Parse DECL_RTL. */ | |
563 | require_char_ws ('('); | |
564 | require_word_ws ("DECL_RTL"); | |
565 | DECL_WRTL_CHECK (t_param)->decl_with_rtl.rtl = parse_rtx (); | |
566 | require_char_ws (')'); | |
567 | ||
568 | /* Parse DECL_RTL_INCOMING. */ | |
569 | require_char_ws ('('); | |
570 | require_word_ws ("DECL_RTL_INCOMING"); | |
571 | DECL_INCOMING_RTL (t_param) = parse_rtx (); | |
572 | require_char_ws (')'); | |
573 | ||
574 | require_char_ws (')'); | |
575 | } | |
576 | ||
577 | /* Parse zero or more child insn elements within an | |
578 | "insn-chain" element. Consume the trailing ')'. */ | |
579 | ||
580 | void | |
581 | function_reader::parse_insn_chain () | |
582 | { | |
583 | while (1) | |
584 | { | |
585 | int c = read_skip_spaces (); | |
586 | file_location loc = get_current_location (); | |
587 | if (c == ')') | |
588 | break; | |
589 | else if (c == '(') | |
590 | { | |
591 | struct md_name directive; | |
592 | read_name (&directive); | |
593 | if (strcmp (directive.string, "block") == 0) | |
594 | parse_block (); | |
595 | else | |
596 | parse_insn (loc, directive.string); | |
597 | } | |
598 | else | |
599 | fatal_at (loc, "expected '(' or ')'"); | |
600 | } | |
601 | ||
602 | create_edges (); | |
603 | } | |
604 | ||
605 | /* Parse zero or more child directives (edges and insns) within a | |
606 | "block" directive, having already parsed the "(block " heading. | |
607 | Consume the trailing ')'. */ | |
608 | ||
609 | void | |
610 | function_reader::parse_block () | |
611 | { | |
612 | /* Parse the index value from the dump. This will be an integer; | |
613 | we don't support "entry" or "exit" here (unlike for edges). */ | |
614 | struct md_name name; | |
615 | read_name (&name); | |
616 | int bb_idx = atoi (name.string); | |
617 | ||
618 | /* The term "index" has two meanings for basic blocks in a CFG: | |
619 | (a) the "index" field within struct basic_block_def. | |
620 | (b) the index of a basic_block within the cfg's x_basic_block_info | |
621 | vector, as accessed via BASIC_BLOCK_FOR_FN. | |
622 | ||
623 | These can get out-of-sync when basic blocks are optimized away. | |
624 | They get back in sync by "compact_blocks". | |
625 | We reconstruct cfun->cfg->x_basic_block_info->m_vecdata with NULL | |
626 | values in it for any missing basic blocks, so that (a) == (b) for | |
627 | all of the blocks we create. The doubly-linked list of basic | |
628 | blocks (next_bb/prev_bb) skips over these "holes". */ | |
629 | ||
630 | if (m_highest_bb_idx < bb_idx) | |
631 | m_highest_bb_idx = bb_idx; | |
632 | ||
633 | size_t new_size = m_highest_bb_idx + 1; | |
634 | if (basic_block_info_for_fn (cfun)->length () < new_size) | |
cb3874dc | 635 | vec_safe_grow_cleared (basic_block_info_for_fn (cfun), new_size, true); |
51b86113 DM |
636 | |
637 | last_basic_block_for_fn (cfun) = new_size; | |
638 | ||
639 | /* Create the basic block. | |
640 | ||
641 | We can't call create_basic_block and use the regular RTL block-creation | |
642 | hooks, since this creates NOTE_INSN_BASIC_BLOCK instances. We don't | |
643 | want to do that; we want to use the notes we were provided with. */ | |
644 | basic_block bb = alloc_block (); | |
645 | init_rtl_bb_info (bb); | |
646 | bb->index = bb_idx; | |
647 | bb->flags = BB_NEW | BB_RTL; | |
648 | link_block (bb, m_bb_to_insert_after); | |
649 | m_bb_to_insert_after = bb; | |
650 | ||
651 | n_basic_blocks_for_fn (cfun)++; | |
652 | SET_BASIC_BLOCK_FOR_FN (cfun, bb_idx, bb); | |
653 | BB_SET_PARTITION (bb, BB_UNPARTITIONED); | |
654 | ||
655 | /* Handle insns, edge-from and edge-to directives. */ | |
656 | while (1) | |
657 | { | |
658 | int c = read_skip_spaces (); | |
659 | file_location loc = get_current_location (); | |
660 | if (c == ')') | |
661 | break; | |
662 | else if (c == '(') | |
663 | { | |
664 | struct md_name directive; | |
665 | read_name (&directive); | |
666 | if (strcmp (directive.string, "edge-from") == 0) | |
667 | parse_edge (bb, true); | |
668 | else if (strcmp (directive.string, "edge-to") == 0) | |
669 | parse_edge (bb, false); | |
670 | else | |
671 | { | |
672 | rtx_insn *insn = parse_insn (loc, directive.string); | |
673 | set_block_for_insn (insn, bb); | |
674 | if (!BB_HEAD (bb)) | |
675 | BB_HEAD (bb) = insn; | |
676 | BB_END (bb) = insn; | |
677 | } | |
678 | } | |
679 | else | |
680 | fatal_at (loc, "expected '(' or ')'"); | |
681 | } | |
682 | } | |
683 | ||
684 | /* Subroutine of function_reader::parse_edge. | |
685 | Parse a basic block index, handling "entry" and "exit". */ | |
686 | ||
687 | int | |
688 | function_reader::parse_bb_idx () | |
689 | { | |
690 | struct md_name name; | |
691 | read_name (&name); | |
692 | if (strcmp (name.string, "entry") == 0) | |
693 | return ENTRY_BLOCK; | |
694 | if (strcmp (name.string, "exit") == 0) | |
695 | return EXIT_BLOCK; | |
696 | return atoi (name.string); | |
697 | } | |
698 | ||
699 | /* Subroutine of parse_edge_flags. | |
700 | Parse TOK, a token such as "FALLTHRU", converting to the flag value. | |
701 | Issue an error if the token is unrecognized. */ | |
702 | ||
703 | static int | |
704 | parse_edge_flag_token (const char *tok) | |
705 | { | |
706 | #define DEF_EDGE_FLAG(NAME,IDX) \ | |
707 | do { \ | |
708 | if (strcmp (tok, #NAME) == 0) \ | |
709 | return EDGE_##NAME; \ | |
710 | } while (0); | |
711 | #include "cfg-flags.def" | |
712 | #undef DEF_EDGE_FLAG | |
a9c697b8 | 713 | error ("unrecognized edge flag: %qs", tok); |
51b86113 DM |
714 | return 0; |
715 | } | |
716 | ||
717 | /* Subroutine of function_reader::parse_edge. | |
718 | Parse STR and convert to a flag value (or issue an error). | |
719 | The parser uses strtok and hence modifiers STR in-place. */ | |
720 | ||
721 | static int | |
722 | parse_edge_flags (char *str) | |
723 | { | |
724 | int result = 0; | |
725 | ||
726 | char *tok = strtok (str, "| "); | |
727 | while (tok) | |
728 | { | |
729 | result |= parse_edge_flag_token (tok); | |
730 | tok = strtok (NULL, "| "); | |
731 | } | |
732 | ||
733 | return result; | |
734 | } | |
735 | ||
736 | /* Parse an "edge-from" or "edge-to" directive within the "block" | |
737 | directive for BLOCK, having already parsed the "(edge" heading. | |
738 | Consume the final ")". Record the edge within m_deferred_edges. | |
739 | FROM is true for an "edge-from" directive, false for an "edge-to" | |
740 | directive. */ | |
741 | ||
742 | void | |
743 | function_reader::parse_edge (basic_block block, bool from) | |
744 | { | |
745 | gcc_assert (block); | |
746 | int this_bb_idx = block->index; | |
747 | file_location loc = get_current_location (); | |
748 | int other_bb_idx = parse_bb_idx (); | |
749 | ||
750 | /* "(edge-from 2)" means src = 2, dest = this_bb_idx, whereas | |
751 | "(edge-to 3)" means src = this_bb_idx, dest = 3. */ | |
752 | int src_idx = from ? other_bb_idx : this_bb_idx; | |
753 | int dest_idx = from ? this_bb_idx : other_bb_idx; | |
754 | ||
755 | /* Optional "(flags)". */ | |
756 | int flags = 0; | |
757 | int c = read_skip_spaces (); | |
758 | if (c == '(') | |
759 | { | |
760 | require_word_ws ("flags"); | |
761 | require_char_ws ('"'); | |
762 | char *str = read_quoted_string (); | |
763 | flags = parse_edge_flags (str); | |
764 | require_char_ws (')'); | |
765 | } | |
766 | else | |
767 | unread_char (c); | |
768 | ||
769 | require_char_ws (')'); | |
770 | ||
771 | /* This BB already exists, but the other BB might not yet. | |
772 | For now, save the edges, and create them at the end of insn-chain | |
773 | processing. */ | |
774 | /* For now, only process the (edge-from) to this BB, and (edge-to) | |
775 | that go to the exit block. | |
776 | FIXME: we don't yet verify that the edge-from and edge-to directives | |
777 | are consistent. */ | |
778 | if (from || dest_idx == EXIT_BLOCK) | |
779 | m_deferred_edges.safe_push (deferred_edge (loc, src_idx, dest_idx, flags)); | |
780 | } | |
781 | ||
782 | /* Parse an rtx instruction, having parsed the opening and parenthesis, and | |
783 | name NAME, seen at START_LOC, by calling read_rtx_code, calling | |
784 | set_first_insn and set_last_insn as appropriate, and | |
785 | adding the insn to the insn chain. | |
786 | Consume the trailing ')'. */ | |
787 | ||
788 | rtx_insn * | |
789 | function_reader::parse_insn (file_location start_loc, const char *name) | |
790 | { | |
791 | rtx x = read_rtx_code (name); | |
792 | if (!x) | |
793 | fatal_at (start_loc, "expected insn type; got '%s'", name); | |
794 | rtx_insn *insn = dyn_cast <rtx_insn *> (x); | |
795 | if (!insn) | |
796 | fatal_at (start_loc, "expected insn type; got '%s'", name); | |
797 | ||
798 | /* Consume the trailing ')'. */ | |
799 | require_char_ws (')'); | |
800 | ||
801 | rtx_insn *last_insn = get_last_insn (); | |
802 | ||
803 | /* Add "insn" to the insn chain. */ | |
804 | if (last_insn) | |
805 | { | |
806 | gcc_assert (NEXT_INSN (last_insn) == NULL); | |
807 | SET_NEXT_INSN (last_insn) = insn; | |
808 | } | |
809 | SET_PREV_INSN (insn) = last_insn; | |
810 | ||
811 | /* Add it to the sequence. */ | |
812 | set_last_insn (insn); | |
813 | if (!m_first_insn) | |
814 | { | |
815 | m_first_insn = insn; | |
816 | set_first_insn (insn); | |
817 | } | |
818 | ||
819 | if (rtx_code_label *label = dyn_cast <rtx_code_label *> (insn)) | |
820 | maybe_set_max_label_num (label); | |
821 | ||
822 | return insn; | |
823 | } | |
824 | ||
825 | /* Postprocessing subroutine for parse_insn_chain: all the basic blocks | |
826 | should have been created by now; create the edges that were seen. */ | |
827 | ||
828 | void | |
829 | function_reader::create_edges () | |
830 | { | |
831 | int i; | |
832 | deferred_edge *de; | |
833 | FOR_EACH_VEC_ELT (m_deferred_edges, i, de) | |
834 | { | |
835 | /* The BBs should already have been created by parse_block. */ | |
836 | basic_block src = BASIC_BLOCK_FOR_FN (cfun, de->m_src_bb_idx); | |
837 | if (!src) | |
838 | fatal_at (de->m_loc, "error: block index %i not found", | |
839 | de->m_src_bb_idx); | |
840 | basic_block dst = BASIC_BLOCK_FOR_FN (cfun, de->m_dest_bb_idx); | |
841 | if (!dst) | |
842 | fatal_at (de->m_loc, "error: block with index %i not found", | |
843 | de->m_dest_bb_idx); | |
844 | unchecked_make_edge (src, dst, de->m_flags); | |
845 | } | |
846 | } | |
847 | ||
848 | /* Parse a "crtl" directive, having already parsed the "(crtl" heading | |
849 | at location LOC. | |
850 | Consume the final ")". */ | |
851 | ||
852 | void | |
853 | function_reader::parse_crtl (file_location loc) | |
854 | { | |
855 | if (m_have_crtl_directive) | |
856 | error_at (loc, "more than one 'crtl' directive"); | |
857 | m_have_crtl_directive = true; | |
858 | ||
859 | /* return_rtx. */ | |
860 | require_char_ws ('('); | |
861 | require_word_ws ("return_rtx"); | |
862 | crtl->return_rtx = parse_rtx (); | |
863 | require_char_ws (')'); | |
864 | ||
865 | require_char_ws (')'); | |
866 | } | |
867 | ||
868 | /* Parse operand IDX of X, returning X, or an equivalent rtx | |
869 | expression (for consolidating singletons). | |
870 | This is an overridden implementation of rtx_reader::read_rtx_operand for | |
871 | function_reader, handling various extra data printed by print_rtx, | |
872 | and sometimes calling the base class implementation. */ | |
873 | ||
874 | rtx | |
875 | function_reader::read_rtx_operand (rtx x, int idx) | |
876 | { | |
877 | RTX_CODE code = GET_CODE (x); | |
878 | const char *format_ptr = GET_RTX_FORMAT (code); | |
879 | const char format_char = format_ptr[idx]; | |
880 | struct md_name name; | |
881 | ||
882 | /* Override the regular parser for some format codes. */ | |
883 | switch (format_char) | |
884 | { | |
885 | case 'e': | |
886 | if (idx == 7 && CALL_P (x)) | |
887 | { | |
888 | m_in_call_function_usage = true; | |
889 | return rtx_reader::read_rtx_operand (x, idx); | |
890 | m_in_call_function_usage = false; | |
891 | } | |
892 | else | |
893 | return rtx_reader::read_rtx_operand (x, idx); | |
894 | break; | |
895 | ||
896 | case 'u': | |
897 | read_rtx_operand_u (x, idx); | |
898 | /* Don't run regular parser for 'u'. */ | |
899 | return x; | |
900 | ||
901 | case 'i': | |
902 | case 'n': | |
903 | read_rtx_operand_i_or_n (x, idx, format_char); | |
904 | /* Don't run regular parser for these codes. */ | |
905 | return x; | |
906 | ||
907 | case 'B': | |
908 | gcc_assert (is_compact ()); | |
909 | /* Compact mode doesn't store BBs. */ | |
910 | /* Don't run regular parser. */ | |
911 | return x; | |
912 | ||
913 | case 'r': | |
914 | /* Don't run regular parser for 'r'. */ | |
915 | return read_rtx_operand_r (x); | |
916 | ||
917 | default: | |
918 | break; | |
919 | } | |
920 | ||
921 | /* Call base class implementation. */ | |
922 | x = rtx_reader::read_rtx_operand (x, idx); | |
923 | ||
924 | /* Handle any additional parsing needed to handle what the dump | |
925 | could contain. */ | |
926 | switch (format_char) | |
927 | { | |
928 | case '0': | |
57517ca4 | 929 | x = extra_parsing_for_operand_code_0 (x, idx); |
51b86113 DM |
930 | break; |
931 | ||
932 | case 'w': | |
933 | if (!is_compact ()) | |
934 | { | |
935 | /* Strip away the redundant hex dump of the value. */ | |
936 | require_char_ws ('['); | |
937 | read_name (&name); | |
938 | require_char_ws (']'); | |
939 | } | |
940 | break; | |
941 | ||
942 | default: | |
943 | break; | |
944 | } | |
945 | ||
946 | return x; | |
947 | } | |
948 | ||
949 | /* Parse operand IDX of X, of code 'u', when reading function dumps. | |
950 | ||
951 | The RTL file recorded the ID of an insn (or 0 for NULL); we | |
952 | must store this as a pointer, but the insn might not have | |
953 | been loaded yet. Store the ID away for now, via a fixup. */ | |
954 | ||
955 | void | |
956 | function_reader::read_rtx_operand_u (rtx x, int idx) | |
957 | { | |
958 | /* In compact mode, the PREV/NEXT insn uids are not dumped, so skip | |
959 | the "uu" when reading. */ | |
960 | if (is_compact () && GET_CODE (x) != LABEL_REF) | |
961 | return; | |
962 | ||
963 | struct md_name name; | |
964 | file_location loc = read_name (&name); | |
965 | int insn_id = atoi (name.string); | |
966 | if (insn_id) | |
967 | add_fixup_insn_uid (loc, x, idx, insn_id); | |
968 | } | |
969 | ||
970 | /* Read a name, looking for a match against a string found in array | |
971 | STRINGS of size NUM_VALUES. | |
700d4cb0 | 972 | Return the index of the matched string, or emit an error. */ |
51b86113 DM |
973 | |
974 | int | |
975 | function_reader::parse_enum_value (int num_values, const char *const *strings) | |
976 | { | |
977 | struct md_name name; | |
978 | read_name (&name); | |
979 | for (int i = 0; i < num_values; i++) | |
980 | { | |
981 | if (strcmp (name.string, strings[i]) == 0) | |
982 | return i; | |
983 | } | |
a9c697b8 | 984 | error ("unrecognized enum value: %qs", name.string); |
51b86113 DM |
985 | return 0; |
986 | } | |
987 | ||
988 | /* Parse operand IDX of X, of code 'i' or 'n' (as specified by FORMAT_CHAR). | |
989 | Special-cased handling of these, for reading function dumps. */ | |
990 | ||
991 | void | |
992 | function_reader::read_rtx_operand_i_or_n (rtx x, int idx, | |
993 | char format_char) | |
994 | { | |
995 | /* Handle some of the extra information that print_rtx | |
996 | can write out for these cases. */ | |
997 | /* print_rtx only writes out operand 5 for notes | |
998 | for NOTE_KIND values NOTE_INSN_DELETED_LABEL | |
999 | and NOTE_INSN_DELETED_DEBUG_LABEL. */ | |
1000 | if (idx == 5 && NOTE_P (x)) | |
1001 | return; | |
1002 | ||
1003 | if (idx == 4 && INSN_P (x)) | |
1004 | { | |
1005 | maybe_read_location (as_a <rtx_insn *> (x)); | |
1006 | return; | |
1007 | } | |
1008 | ||
1009 | /* INSN_CODEs aren't printed in compact mode, so don't attempt to | |
1010 | parse them. */ | |
1011 | if (is_compact () | |
1012 | && INSN_P (x) | |
1013 | && &INSN_CODE (x) == &XINT (x, idx)) | |
1014 | { | |
1015 | INSN_CODE (x) = -1; | |
1016 | return; | |
1017 | } | |
1018 | ||
1019 | /* Handle UNSPEC and UNSPEC_VOLATILE's operand 1. */ | |
1020 | #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0 | |
1021 | if (idx == 1 | |
1022 | && GET_CODE (x) == UNSPEC_VOLATILE) | |
1023 | { | |
1024 | XINT (x, 1) | |
1025 | = parse_enum_value (NUM_UNSPECV_VALUES, unspecv_strings); | |
1026 | return; | |
1027 | } | |
1028 | #endif | |
1029 | #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0 | |
1030 | if (idx == 1 | |
1031 | && (GET_CODE (x) == UNSPEC | |
1032 | || GET_CODE (x) == UNSPEC_VOLATILE)) | |
1033 | { | |
1034 | XINT (x, 1) | |
1035 | = parse_enum_value (NUM_UNSPEC_VALUES, unspec_strings); | |
1036 | return; | |
1037 | } | |
1038 | #endif | |
1039 | ||
1040 | struct md_name name; | |
1041 | read_name (&name); | |
1042 | int value; | |
1043 | if (format_char == 'n') | |
1044 | value = parse_note_insn_name (name.string); | |
1045 | else | |
1046 | value = atoi (name.string); | |
1047 | XINT (x, idx) = value; | |
1048 | } | |
1049 | ||
1050 | /* Parse the 'r' operand of X, returning X, or an equivalent rtx | |
1051 | expression (for consolidating singletons). | |
1052 | Special-cased handling of code 'r' for reading function dumps. */ | |
1053 | ||
1054 | rtx | |
1055 | function_reader::read_rtx_operand_r (rtx x) | |
1056 | { | |
1057 | struct md_name name; | |
1058 | file_location loc = read_name (&name); | |
1059 | int regno = lookup_reg_by_dump_name (name.string); | |
1060 | if (regno == -1) | |
1061 | fatal_at (loc, "unrecognized register: '%s'", name.string); | |
1062 | ||
1063 | set_regno_raw (x, regno, 1); | |
1064 | ||
1065 | /* Consolidate singletons. */ | |
1066 | x = consolidate_singletons (x); | |
1067 | ||
1068 | ORIGINAL_REGNO (x) = regno; | |
1069 | ||
1070 | /* Parse extra stuff at end of 'r'. | |
1071 | We may have zero, one, or two sections marked by square | |
1072 | brackets. */ | |
1073 | int ch = read_skip_spaces (); | |
1074 | bool expect_original_regno = false; | |
1075 | if (ch == '[') | |
1076 | { | |
1077 | file_location loc = get_current_location (); | |
1078 | char *desc = read_until ("]", true); | |
1079 | strip_trailing_whitespace (desc); | |
1080 | const char *desc_start = desc; | |
1081 | /* If ORIGINAL_REGNO (rtx) != regno, we will have: | |
1082 | "orig:%i", ORIGINAL_REGNO (rtx). | |
1083 | Consume it, we don't set ORIGINAL_REGNO, since we can | |
1084 | get that from the 2nd copy later. */ | |
01512446 | 1085 | if (strncmp (desc, "orig:", 5) == 0) |
51b86113 DM |
1086 | { |
1087 | expect_original_regno = true; | |
1088 | desc_start += 5; | |
1089 | /* Skip to any whitespace following the integer. */ | |
1090 | const char *space = strchr (desc_start, ' '); | |
1091 | if (space) | |
1092 | desc_start = space + 1; | |
1093 | } | |
1094 | /* Any remaining text may be the REG_EXPR. Alternatively we have | |
1095 | no REG_ATTRS, and instead we have ORIGINAL_REGNO. */ | |
1096 | if (ISDIGIT (*desc_start)) | |
1097 | { | |
1098 | /* Assume we have ORIGINAL_REGNO. */ | |
1099 | ORIGINAL_REGNO (x) = atoi (desc_start); | |
1100 | } | |
1101 | else | |
1102 | { | |
1103 | /* Assume we have REG_EXPR. */ | |
1104 | add_fixup_expr (loc, x, desc_start); | |
1105 | } | |
1106 | free (desc); | |
1107 | } | |
1108 | else | |
1109 | unread_char (ch); | |
1110 | if (expect_original_regno) | |
1111 | { | |
1112 | require_char_ws ('['); | |
1113 | char *desc = read_until ("]", true); | |
1114 | ORIGINAL_REGNO (x) = atoi (desc); | |
1115 | free (desc); | |
1116 | } | |
1117 | ||
1118 | return x; | |
1119 | } | |
1120 | ||
1121 | /* Additional parsing for format code '0' in dumps, handling a variety | |
57517ca4 DM |
1122 | of special-cases in print_rtx, when parsing operand IDX of X. |
1123 | Return X, or possibly a reallocated copy of X. */ | |
51b86113 | 1124 | |
57517ca4 | 1125 | rtx |
51b86113 DM |
1126 | function_reader::extra_parsing_for_operand_code_0 (rtx x, int idx) |
1127 | { | |
1128 | RTX_CODE code = GET_CODE (x); | |
1129 | int c; | |
1130 | struct md_name name; | |
1131 | ||
1132 | if (idx == 1 && code == SYMBOL_REF) | |
1133 | { | |
1134 | /* Possibly wrote " [flags %#x]", SYMBOL_REF_FLAGS (in_rtx). */ | |
1135 | c = read_skip_spaces (); | |
1136 | if (c == '[') | |
1137 | { | |
1138 | file_location loc = read_name (&name); | |
1139 | if (strcmp (name.string, "flags")) | |
1140 | error_at (loc, "was expecting `%s'", "flags"); | |
1141 | read_name (&name); | |
1142 | SYMBOL_REF_FLAGS (x) = strtol (name.string, NULL, 16); | |
1143 | ||
57517ca4 DM |
1144 | /* The standard RTX_CODE_SIZE (SYMBOL_REF) used when allocating |
1145 | x doesn't have space for the block_symbol information, so | |
1146 | we must reallocate it if this flag is set. */ | |
51b86113 | 1147 | if (SYMBOL_REF_HAS_BLOCK_INFO_P (x)) |
57517ca4 DM |
1148 | { |
1149 | /* Emulate the allocation normally done by | |
1150 | varasm.c:create_block_symbol. */ | |
1151 | unsigned int size = RTX_HDR_SIZE + sizeof (struct block_symbol); | |
1152 | rtx new_x = (rtx) ggc_internal_alloc (size); | |
1153 | ||
1154 | /* Copy data over from the smaller SYMBOL_REF. */ | |
1155 | memcpy (new_x, x, RTX_CODE_SIZE (SYMBOL_REF)); | |
1156 | x = new_x; | |
1157 | ||
1158 | /* We can't reconstruct SYMBOL_REF_BLOCK; set it to NULL. */ | |
1159 | SYMBOL_REF_BLOCK (x) = NULL; | |
1160 | ||
1161 | /* Zero the offset. */ | |
1162 | SYMBOL_REF_BLOCK_OFFSET (x) = 0; | |
1163 | } | |
51b86113 DM |
1164 | |
1165 | require_char (']'); | |
1166 | } | |
1167 | else | |
1168 | unread_char (c); | |
1169 | ||
1170 | /* If X had a non-NULL SYMBOL_REF_DECL, | |
1171 | rtx_writer::print_rtx_operand_code_0 would have dumped it | |
1172 | using print_node_brief. | |
1173 | Skip the content for now. */ | |
1174 | c = read_skip_spaces (); | |
1175 | if (c == '<') | |
1176 | { | |
1177 | while (1) | |
1178 | { | |
1179 | char ch = read_char (); | |
1180 | if (ch == '>') | |
1181 | break; | |
1182 | } | |
1183 | } | |
1184 | else | |
1185 | unread_char (c); | |
1186 | } | |
1187 | else if (idx == 3 && code == NOTE) | |
1188 | { | |
1189 | /* Note-specific data appears for operand 3, which annoyingly | |
1190 | is before the enum specifying which kind of note we have | |
1191 | (operand 4). */ | |
1192 | c = read_skip_spaces (); | |
1193 | if (c == '[') | |
1194 | { | |
1195 | /* Possibly data for a NOTE_INSN_BASIC_BLOCK, of the form: | |
1196 | [bb %d]. */ | |
1197 | file_location bb_loc = read_name (&name); | |
1198 | if (strcmp (name.string, "bb")) | |
1199 | error_at (bb_loc, "was expecting `%s'", "bb"); | |
1200 | read_name (&name); | |
1201 | int bb_idx = atoi (name.string); | |
1202 | add_fixup_note_insn_basic_block (bb_loc, x, idx, | |
1203 | bb_idx); | |
1204 | require_char_ws (']'); | |
1205 | } | |
1206 | else | |
1207 | unread_char (c); | |
1208 | } | |
57517ca4 DM |
1209 | |
1210 | return x; | |
51b86113 DM |
1211 | } |
1212 | ||
1213 | /* Implementation of rtx_reader::handle_any_trailing_information. | |
1214 | Handle the various additional information that print-rtl.c can | |
1215 | write after the regular fields, when parsing X. */ | |
1216 | ||
1217 | void | |
1218 | function_reader::handle_any_trailing_information (rtx x) | |
1219 | { | |
1220 | struct md_name name; | |
1221 | ||
1222 | switch (GET_CODE (x)) | |
1223 | { | |
1224 | case MEM: | |
1225 | { | |
1226 | int ch; | |
1227 | require_char_ws ('['); | |
1228 | read_name (&name); | |
1229 | set_mem_alias_set (x, atoi (name.string)); | |
1230 | /* We have either a MEM_EXPR, or a space. */ | |
1231 | if (peek_char () != ' ') | |
1232 | { | |
1233 | file_location loc = get_current_location (); | |
1234 | char *desc = read_until (" +", false); | |
1235 | add_fixup_expr (loc, consolidate_singletons (x), desc); | |
1236 | free (desc); | |
1237 | } | |
1238 | else | |
1239 | read_char (); | |
1240 | ||
1241 | /* We may optionally have '+' for MEM_OFFSET_KNOWN_P. */ | |
1242 | ch = read_skip_spaces (); | |
1243 | if (ch == '+') | |
1244 | { | |
1245 | read_name (&name); | |
1246 | set_mem_offset (x, atoi (name.string)); | |
1247 | } | |
1248 | else | |
1249 | unread_char (ch); | |
1250 | ||
1251 | /* Handle optional " S" for MEM_SIZE. */ | |
1252 | ch = read_skip_spaces (); | |
1253 | if (ch == 'S') | |
1254 | { | |
1255 | read_name (&name); | |
1256 | set_mem_size (x, atoi (name.string)); | |
1257 | } | |
1258 | else | |
1259 | unread_char (ch); | |
1260 | ||
1261 | /* Handle optional " A" for MEM_ALIGN. */ | |
1262 | ch = read_skip_spaces (); | |
1263 | if (ch == 'A' && peek_char () != 'S') | |
1264 | { | |
1265 | read_name (&name); | |
1266 | set_mem_align (x, atoi (name.string)); | |
1267 | } | |
1268 | else | |
1269 | unread_char (ch); | |
1270 | ||
1271 | /* Handle optional " AS" for MEM_ADDR_SPACE. */ | |
1272 | ch = read_skip_spaces (); | |
1273 | if (ch == 'A' && peek_char () == 'S') | |
1274 | { | |
1275 | read_char (); | |
1276 | read_name (&name); | |
1277 | set_mem_addr_space (x, atoi (name.string)); | |
1278 | } | |
1279 | else | |
1280 | unread_char (ch); | |
1281 | ||
1282 | require_char (']'); | |
1283 | } | |
1284 | break; | |
1285 | ||
1286 | case CODE_LABEL: | |
1287 | /* Assume that LABEL_NUSES was not dumped. */ | |
1288 | /* TODO: parse LABEL_KIND. */ | |
1289 | /* For now, skip until closing ')'. */ | |
1290 | do | |
1291 | { | |
1292 | char ch = read_char (); | |
1293 | if (ch == ')') | |
1294 | { | |
1295 | unread_char (ch); | |
1296 | break; | |
1297 | } | |
1298 | } | |
1299 | while (1); | |
1300 | break; | |
1301 | ||
1302 | default: | |
1303 | break; | |
1304 | } | |
1305 | } | |
1306 | ||
1307 | /* Parse a tree dump for a MEM_EXPR in DESC and turn it back into a tree. | |
1308 | We handle "<retval>" and param names within cfun, but for anything else | |
1309 | we "cheat" by building a global VAR_DECL of type "int" with that name | |
1310 | (returning the same global for a name if we see the same name more | |
1311 | than once). */ | |
1312 | ||
1313 | tree | |
1314 | function_reader::parse_mem_expr (const char *desc) | |
1315 | { | |
1316 | tree fndecl = cfun->decl; | |
1317 | ||
01512446 | 1318 | if (strcmp (desc, "<retval>") == 0) |
51b86113 DM |
1319 | return DECL_RESULT (fndecl); |
1320 | ||
1321 | tree param = find_param_by_name (fndecl, desc); | |
1322 | if (param) | |
1323 | return param; | |
1324 | ||
1325 | /* Search within decls we already created. | |
1326 | FIXME: use a hash rather than linear search. */ | |
1327 | int i; | |
1328 | tree t; | |
1329 | FOR_EACH_VEC_ELT (m_fake_scope, i, t) | |
a01f151f | 1330 | if (id_equal (DECL_NAME (t), desc)) |
51b86113 DM |
1331 | return t; |
1332 | ||
1333 | /* Not found? Create it. | |
1334 | This allows mimicking of real data but avoids having to specify | |
1335 | e.g. names of locals, params etc. | |
1336 | Though this way we don't know if we have a PARM_DECL vs a VAR_DECL, | |
1337 | and we don't know the types. Fake it by making everything be | |
1338 | a VAR_DECL of "int" type. */ | |
1339 | t = build_decl (UNKNOWN_LOCATION, VAR_DECL, | |
1340 | get_identifier (desc), | |
1341 | integer_type_node); | |
1342 | m_fake_scope.safe_push (t); | |
1343 | return t; | |
1344 | } | |
1345 | ||
1346 | /* Record that at LOC we saw an insn uid INSN_UID for the operand with index | |
1347 | OPERAND_IDX within INSN, so that the pointer value can be fixed up in | |
1348 | later post-processing. */ | |
1349 | ||
1350 | void | |
1351 | function_reader::add_fixup_insn_uid (file_location loc, rtx insn, int operand_idx, | |
1352 | int insn_uid) | |
1353 | { | |
1354 | m_fixups.safe_push (new fixup_insn_uid (loc, insn, operand_idx, insn_uid)); | |
1355 | } | |
1356 | ||
1357 | /* Record that at LOC we saw an basic block index BB_IDX for the operand with index | |
1358 | OPERAND_IDX within INSN, so that the pointer value can be fixed up in | |
1359 | later post-processing. */ | |
1360 | ||
1361 | void | |
1362 | function_reader::add_fixup_note_insn_basic_block (file_location loc, rtx insn, | |
1363 | int operand_idx, int bb_idx) | |
1364 | { | |
1365 | m_fixups.safe_push (new fixup_note_insn_basic_block (loc, insn, operand_idx, | |
1366 | bb_idx)); | |
1367 | } | |
1368 | ||
1369 | /* Placeholder hook for recording source location information seen in a dump. | |
1370 | This is empty for now. */ | |
1371 | ||
1372 | void | |
1373 | function_reader::add_fixup_source_location (file_location, rtx_insn *, | |
63841daf | 1374 | const char *, int, int) |
51b86113 DM |
1375 | { |
1376 | } | |
1377 | ||
1378 | /* Record that at LOC we saw textual description DESC of the MEM_EXPR or REG_EXPR | |
1379 | of INSN, so that the fields can be fixed up in later post-processing. */ | |
1380 | ||
1381 | void | |
1382 | function_reader::add_fixup_expr (file_location loc, rtx insn, | |
1383 | const char *desc) | |
1384 | { | |
1385 | gcc_assert (desc); | |
1386 | /* Fail early if the RTL reader erroneously hands us an int. */ | |
1387 | gcc_assert (!ISDIGIT (desc[0])); | |
1388 | ||
1389 | m_fixups.safe_push (new fixup_expr (loc, insn, desc)); | |
1390 | } | |
1391 | ||
1392 | /* Helper function for consolidate_reg. Return the global rtx for | |
1393 | the register with regno REGNO. */ | |
1394 | ||
1395 | static rtx | |
1396 | lookup_global_register (int regno) | |
1397 | { | |
1398 | /* We can't use a switch here, as some of the REGNUMs might not be constants | |
1399 | for some targets. */ | |
1400 | if (regno == STACK_POINTER_REGNUM) | |
1401 | return stack_pointer_rtx; | |
1402 | else if (regno == FRAME_POINTER_REGNUM) | |
1403 | return frame_pointer_rtx; | |
1404 | else if (regno == HARD_FRAME_POINTER_REGNUM) | |
1405 | return hard_frame_pointer_rtx; | |
1406 | else if (regno == ARG_POINTER_REGNUM) | |
1407 | return arg_pointer_rtx; | |
1408 | else if (regno == VIRTUAL_INCOMING_ARGS_REGNUM) | |
1409 | return virtual_incoming_args_rtx; | |
1410 | else if (regno == VIRTUAL_STACK_VARS_REGNUM) | |
1411 | return virtual_stack_vars_rtx; | |
1412 | else if (regno == VIRTUAL_STACK_DYNAMIC_REGNUM) | |
1413 | return virtual_stack_dynamic_rtx; | |
1414 | else if (regno == VIRTUAL_OUTGOING_ARGS_REGNUM) | |
1415 | return virtual_outgoing_args_rtx; | |
1416 | else if (regno == VIRTUAL_CFA_REGNUM) | |
1417 | return virtual_cfa_rtx; | |
1418 | else if (regno == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM) | |
1419 | return virtual_preferred_stack_boundary_rtx; | |
1420 | #ifdef return_ADDRESS_POINTER_REGNUM | |
1421 | else if (regno == RETURN_ADDRESS_POINTER_REGNUM) | |
1422 | return return_address_pointer_rtx; | |
1423 | #endif | |
1424 | ||
1425 | return NULL; | |
1426 | } | |
1427 | ||
1428 | /* Ensure that the backend can cope with a REG with regno REGNO. | |
1429 | Normally REG instances are created by gen_reg_rtx which updates | |
1430 | regno_reg_rtx, growing it as necessary. | |
1431 | The REG instances created from the dumpfile weren't created this | |
1432 | way, so we need to manually update regno_reg_rtx. */ | |
1433 | ||
1434 | static void | |
1435 | ensure_regno (int regno) | |
1436 | { | |
1437 | if (reg_rtx_no < regno + 1) | |
1438 | reg_rtx_no = regno + 1; | |
1439 | ||
1440 | crtl->emit.ensure_regno_capacity (); | |
1441 | gcc_assert (regno < crtl->emit.regno_pointer_align_length); | |
1442 | } | |
1443 | ||
1444 | /* Helper function for consolidate_singletons, for handling REG instances. | |
1445 | Given REG instance X of some regno, return the singleton rtx for that | |
1446 | regno, if it exists, or X. */ | |
1447 | ||
1448 | static rtx | |
1449 | consolidate_reg (rtx x) | |
1450 | { | |
1451 | gcc_assert (GET_CODE (x) == REG); | |
1452 | ||
1453 | unsigned int regno = REGNO (x); | |
1454 | ||
1455 | ensure_regno (regno); | |
1456 | ||
1457 | /* Some register numbers have their rtx created in init_emit_regs | |
1458 | e.g. stack_pointer_rtx for STACK_POINTER_REGNUM. | |
1459 | Consolidate on this. */ | |
1460 | rtx global_reg = lookup_global_register (regno); | |
1461 | if (global_reg) | |
1462 | return global_reg; | |
1463 | ||
1464 | /* Populate regno_reg_rtx if necessary. */ | |
1465 | if (regno_reg_rtx[regno] == NULL) | |
1466 | regno_reg_rtx[regno] = x; | |
1467 | /* Use it. */ | |
1468 | gcc_assert (GET_CODE (regno_reg_rtx[regno]) == REG); | |
1469 | gcc_assert (REGNO (regno_reg_rtx[regno]) == regno); | |
1470 | if (GET_MODE (x) == GET_MODE (regno_reg_rtx[regno])) | |
1471 | return regno_reg_rtx[regno]; | |
1472 | ||
1473 | return x; | |
1474 | } | |
1475 | ||
1476 | /* When reading RTL function dumps, we must consolidate some | |
1477 | rtx so that we use singletons where singletons are expected | |
1478 | (e.g. we don't want multiple "(const_int 0 [0])" rtx, since | |
1479 | these are tested via pointer equality against const0_rtx. | |
1480 | ||
1481 | Return the equivalent singleton rtx for X, if any, otherwise X. */ | |
1482 | ||
1483 | rtx | |
1484 | function_reader::consolidate_singletons (rtx x) | |
1485 | { | |
1486 | if (!x) | |
1487 | return x; | |
1488 | ||
1489 | switch (GET_CODE (x)) | |
1490 | { | |
1491 | case PC: return pc_rtx; | |
1492 | case RETURN: return ret_rtx; | |
1493 | case SIMPLE_RETURN: return simple_return_rtx; | |
51b86113 DM |
1494 | |
1495 | case REG: | |
1496 | return consolidate_reg (x); | |
1497 | ||
1498 | case CONST_INT: | |
1499 | return gen_rtx_CONST_INT (GET_MODE (x), INTVAL (x)); | |
1500 | ||
1501 | default: | |
1502 | break; | |
1503 | } | |
1504 | ||
1505 | return x; | |
1506 | } | |
1507 | ||
1508 | /* Parse an rtx directive, including both the opening/closing parentheses, | |
1509 | and the name. */ | |
1510 | ||
1511 | rtx | |
1512 | function_reader::parse_rtx () | |
1513 | { | |
1514 | require_char_ws ('('); | |
1515 | struct md_name directive; | |
1516 | read_name (&directive); | |
1517 | rtx result | |
1518 | = consolidate_singletons (read_rtx_code (directive.string)); | |
1519 | require_char_ws (')'); | |
1520 | ||
1521 | return result; | |
1522 | } | |
1523 | ||
1524 | /* Implementation of rtx_reader::postprocess for reading function dumps. | |
1525 | Return the equivalent singleton rtx for X, if any, otherwise X. */ | |
1526 | ||
1527 | rtx | |
1528 | function_reader::postprocess (rtx x) | |
1529 | { | |
1530 | return consolidate_singletons (x); | |
1531 | } | |
1532 | ||
1533 | /* Implementation of rtx_reader::finalize_string for reading function dumps. | |
1534 | Make a GC-managed copy of STRINGBUF. */ | |
1535 | ||
1536 | const char * | |
1537 | function_reader::finalize_string (char *stringbuf) | |
1538 | { | |
1539 | return ggc_strdup (stringbuf); | |
1540 | } | |
1541 | ||
1542 | /* Attempt to parse optional location information for insn INSN, as | |
1543 | potentially written out by rtx_writer::print_rtx_operand_code_i. | |
1544 | We look for a quoted string followed by a colon. */ | |
1545 | ||
1546 | void | |
1547 | function_reader::maybe_read_location (rtx_insn *insn) | |
1548 | { | |
1549 | file_location loc = get_current_location (); | |
1550 | ||
1551 | /* Attempt to parse a quoted string. */ | |
1552 | int ch = read_skip_spaces (); | |
1553 | if (ch == '"') | |
1554 | { | |
1555 | char *filename = read_quoted_string (); | |
1556 | require_char (':'); | |
1557 | struct md_name line_num; | |
1558 | read_name (&line_num); | |
63841daf MM |
1559 | |
1560 | int column = 0; | |
1561 | int ch = read_char (); | |
1562 | if (ch == ':') | |
1563 | { | |
1564 | struct md_name column_num; | |
1565 | read_name (&column_num); | |
1566 | column = atoi (column_num.string); | |
1567 | } | |
1568 | else | |
1569 | unread_char (ch); | |
1570 | add_fixup_source_location (loc, insn, filename, | |
1571 | atoi (line_num.string), | |
1572 | column); | |
51b86113 DM |
1573 | } |
1574 | else | |
1575 | unread_char (ch); | |
1576 | } | |
1577 | ||
1578 | /* Postprocessing subroutine of function_reader::parse_function. | |
1579 | Populate m_insns_by_uid. */ | |
1580 | ||
1581 | void | |
1582 | function_reader::handle_insn_uids () | |
1583 | { | |
1584 | /* Locate the currently assigned INSN_UID values, storing | |
1585 | them in m_insns_by_uid. */ | |
1586 | int max_uid = 0; | |
1587 | for (rtx_insn *insn = get_insns (); insn; insn = NEXT_INSN (insn)) | |
1588 | { | |
1589 | if (m_insns_by_uid.get (INSN_UID (insn))) | |
1590 | error ("duplicate insn UID: %i", INSN_UID (insn)); | |
1591 | m_insns_by_uid.put (INSN_UID (insn), insn); | |
1592 | if (INSN_UID (insn) > max_uid) | |
1593 | max_uid = INSN_UID (insn); | |
1594 | } | |
1595 | ||
1596 | /* Ensure x_cur_insn_uid is 1 more than the biggest insn UID seen. | |
1597 | This is normally updated by the various make_*insn_raw functions. */ | |
1598 | crtl->emit.x_cur_insn_uid = max_uid + 1; | |
1599 | } | |
1600 | ||
1601 | /* Apply all of the recorded fixups. */ | |
1602 | ||
1603 | void | |
1604 | function_reader::apply_fixups () | |
1605 | { | |
1606 | int i; | |
1607 | fixup *f; | |
1608 | FOR_EACH_VEC_ELT (m_fixups, i, f) | |
1609 | f->apply (this); | |
1610 | } | |
1611 | ||
1612 | /* Given a UID value, try to locate a pointer to the corresponding | |
700d4cb0 | 1613 | rtx_insn *, or NULL if it can't be found. */ |
51b86113 DM |
1614 | |
1615 | rtx_insn ** | |
1616 | function_reader::get_insn_by_uid (int uid) | |
1617 | { | |
1618 | return m_insns_by_uid.get (uid); | |
1619 | } | |
1620 | ||
1621 | /* Run the RTL dump parser, parsing a dump located at PATH. | |
1622 | Return true iff the file was successfully parsed. */ | |
1623 | ||
1624 | bool | |
1625 | read_rtl_function_body (const char *path) | |
1626 | { | |
1627 | initialize_rtl (); | |
bd785b44 | 1628 | crtl->abi = &default_function_abi; |
51b86113 DM |
1629 | init_emit (); |
1630 | init_varasm_status (); | |
1631 | ||
1632 | function_reader reader; | |
1633 | if (!reader.read_file (path)) | |
1634 | return false; | |
1635 | ||
1636 | return true; | |
1637 | } | |
1638 | ||
c2e84327 DM |
1639 | /* Run the RTL dump parser on the range of lines between START_LOC and |
1640 | END_LOC (including those lines). */ | |
1641 | ||
1642 | bool | |
1643 | read_rtl_function_body_from_file_range (location_t start_loc, | |
1644 | location_t end_loc) | |
1645 | { | |
1646 | expanded_location exploc_start = expand_location (start_loc); | |
1647 | expanded_location exploc_end = expand_location (end_loc); | |
1648 | ||
1649 | if (exploc_start.file != exploc_end.file) | |
1650 | { | |
1651 | error_at (end_loc, "start/end of RTL fragment are in different files"); | |
1652 | return false; | |
1653 | } | |
1654 | if (exploc_start.line >= exploc_end.line) | |
1655 | { | |
1656 | error_at (end_loc, | |
1657 | "start of RTL fragment must be on an earlier line than end"); | |
1658 | return false; | |
1659 | } | |
1660 | ||
1661 | initialize_rtl (); | |
bd785b44 | 1662 | crtl->abi = &fndecl_abi (cfun->decl).base_abi (); |
c2e84327 DM |
1663 | init_emit (); |
1664 | init_varasm_status (); | |
1665 | ||
1666 | function_reader reader; | |
1667 | if (!reader.read_file_fragment (exploc_start.file, exploc_start.line, | |
1668 | exploc_end.line - 1)) | |
1669 | return false; | |
1670 | ||
1671 | return true; | |
1672 | } | |
1673 | ||
51b86113 DM |
1674 | #if CHECKING_P |
1675 | ||
1676 | namespace selftest { | |
1677 | ||
1678 | /* Verify that parse_edge_flags works. */ | |
1679 | ||
1680 | static void | |
1681 | test_edge_flags () | |
1682 | { | |
1683 | /* parse_edge_flags modifies its input (due to strtok), so we must make | |
1684 | a copy of the literals. */ | |
1685 | #define ASSERT_PARSE_EDGE_FLAGS(EXPECTED, STR) \ | |
1686 | do { \ | |
1687 | char *str = xstrdup (STR); \ | |
1688 | ASSERT_EQ (EXPECTED, parse_edge_flags (str)); \ | |
1689 | free (str); \ | |
1690 | } while (0) | |
1691 | ||
1692 | ASSERT_PARSE_EDGE_FLAGS (0, ""); | |
1693 | ASSERT_PARSE_EDGE_FLAGS (EDGE_FALLTHRU, "FALLTHRU"); | |
1694 | ASSERT_PARSE_EDGE_FLAGS (EDGE_ABNORMAL_CALL, "ABNORMAL_CALL"); | |
1695 | ASSERT_PARSE_EDGE_FLAGS (EDGE_ABNORMAL | EDGE_ABNORMAL_CALL, | |
1696 | "ABNORMAL | ABNORMAL_CALL"); | |
1697 | ||
1698 | #undef ASSERT_PARSE_EDGE_FLAGS | |
1699 | } | |
1700 | ||
1701 | /* Verify that lookup_reg_by_dump_name works. */ | |
1702 | ||
1703 | static void | |
1704 | test_parsing_regnos () | |
1705 | { | |
1706 | ASSERT_EQ (-1, lookup_reg_by_dump_name ("this is not a register")); | |
1707 | ||
1708 | /* Verify lookup of virtual registers. */ | |
1709 | ASSERT_EQ (VIRTUAL_INCOMING_ARGS_REGNUM, | |
1710 | lookup_reg_by_dump_name ("virtual-incoming-args")); | |
1711 | ASSERT_EQ (VIRTUAL_STACK_VARS_REGNUM, | |
1712 | lookup_reg_by_dump_name ("virtual-stack-vars")); | |
1713 | ASSERT_EQ (VIRTUAL_STACK_DYNAMIC_REGNUM, | |
1714 | lookup_reg_by_dump_name ("virtual-stack-dynamic")); | |
1715 | ASSERT_EQ (VIRTUAL_OUTGOING_ARGS_REGNUM, | |
1716 | lookup_reg_by_dump_name ("virtual-outgoing-args")); | |
1717 | ASSERT_EQ (VIRTUAL_CFA_REGNUM, | |
1718 | lookup_reg_by_dump_name ("virtual-cfa")); | |
1719 | ASSERT_EQ (VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM, | |
1720 | lookup_reg_by_dump_name ("virtual-preferred-stack-boundary")); | |
1721 | ||
1722 | /* Verify lookup of non-virtual pseudos. */ | |
1723 | ASSERT_EQ (LAST_VIRTUAL_REGISTER + 1, lookup_reg_by_dump_name ("<0>")); | |
1724 | ASSERT_EQ (LAST_VIRTUAL_REGISTER + 2, lookup_reg_by_dump_name ("<1>")); | |
1725 | } | |
1726 | ||
1727 | /* Verify that edge E is as expected, with the src and dest basic blocks | |
1728 | having indices EXPECTED_SRC_IDX and EXPECTED_DEST_IDX respectively, and | |
1729 | the edge having flags equal to EXPECTED_FLAGS. | |
1730 | Use LOC as the effective location when reporting failures. */ | |
1731 | ||
1732 | static void | |
1733 | assert_edge_at (const location &loc, edge e, int expected_src_idx, | |
1734 | int expected_dest_idx, int expected_flags) | |
1735 | { | |
1736 | ASSERT_EQ_AT (loc, expected_src_idx, e->src->index); | |
1737 | ASSERT_EQ_AT (loc, expected_dest_idx, e->dest->index); | |
1738 | ASSERT_EQ_AT (loc, expected_flags, e->flags); | |
1739 | } | |
1740 | ||
1741 | /* Verify that edge EDGE is as expected, with the src and dest basic blocks | |
1742 | having indices EXPECTED_SRC_IDX and EXPECTED_DEST_IDX respectively, and | |
1743 | the edge having flags equal to EXPECTED_FLAGS. */ | |
1744 | ||
1745 | #define ASSERT_EDGE(EDGE, EXPECTED_SRC_IDX, EXPECTED_DEST_IDX, \ | |
1746 | EXPECTED_FLAGS) \ | |
1747 | assert_edge_at (SELFTEST_LOCATION, EDGE, EXPECTED_SRC_IDX, \ | |
1748 | EXPECTED_DEST_IDX, EXPECTED_FLAGS) | |
1749 | ||
1750 | /* Verify that we can load RTL dumps. */ | |
1751 | ||
1752 | static void | |
1753 | test_loading_dump_fragment_1 () | |
1754 | { | |
1755 | // TODO: filter on target? | |
1756 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("asr_div1.rtl")); | |
1757 | ||
1758 | /* Verify that the insns were loaded correctly. */ | |
1759 | rtx_insn *insn_1 = get_insns (); | |
1760 | ASSERT_TRUE (insn_1); | |
1761 | ASSERT_EQ (1, INSN_UID (insn_1)); | |
1762 | ASSERT_EQ (INSN, GET_CODE (insn_1)); | |
1763 | ASSERT_EQ (SET, GET_CODE (PATTERN (insn_1))); | |
1764 | ASSERT_EQ (NULL, PREV_INSN (insn_1)); | |
1765 | ||
1766 | rtx_insn *insn_2 = NEXT_INSN (insn_1); | |
1767 | ASSERT_TRUE (insn_2); | |
1768 | ASSERT_EQ (2, INSN_UID (insn_2)); | |
1769 | ASSERT_EQ (INSN, GET_CODE (insn_2)); | |
1770 | ASSERT_EQ (insn_1, PREV_INSN (insn_2)); | |
1771 | ASSERT_EQ (NULL, NEXT_INSN (insn_2)); | |
1772 | ||
1773 | /* Verify that registers were loaded correctly. */ | |
1774 | rtx insn_1_dest = SET_DEST (PATTERN (insn_1)); | |
1775 | ASSERT_EQ (REG, GET_CODE (insn_1_dest)); | |
1776 | ASSERT_EQ ((LAST_VIRTUAL_REGISTER + 1) + 2, REGNO (insn_1_dest)); | |
1777 | rtx insn_1_src = SET_SRC (PATTERN (insn_1)); | |
1778 | ASSERT_EQ (LSHIFTRT, GET_CODE (insn_1_src)); | |
1779 | rtx reg = XEXP (insn_1_src, 0); | |
1780 | ASSERT_EQ (REG, GET_CODE (reg)); | |
1781 | ASSERT_EQ (LAST_VIRTUAL_REGISTER + 1, REGNO (reg)); | |
1782 | ||
1783 | /* Verify that get_insn_by_uid works. */ | |
1784 | ASSERT_EQ (insn_1, get_insn_by_uid (1)); | |
1785 | ASSERT_EQ (insn_2, get_insn_by_uid (2)); | |
1786 | ||
1787 | /* Verify that basic blocks were created. */ | |
1788 | ASSERT_EQ (2, BLOCK_FOR_INSN (insn_1)->index); | |
1789 | ASSERT_EQ (2, BLOCK_FOR_INSN (insn_2)->index); | |
1790 | ||
1791 | /* Verify that the CFG was recreated. */ | |
1792 | ASSERT_TRUE (cfun); | |
1793 | verify_three_block_rtl_cfg (cfun); | |
1794 | basic_block bb2 = BASIC_BLOCK_FOR_FN (cfun, 2); | |
1795 | ASSERT_TRUE (bb2 != NULL); | |
1796 | ASSERT_EQ (BB_RTL, bb2->flags & BB_RTL); | |
1797 | ASSERT_EQ (2, bb2->index); | |
1798 | ASSERT_EQ (insn_1, BB_HEAD (bb2)); | |
1799 | ASSERT_EQ (insn_2, BB_END (bb2)); | |
1800 | } | |
1801 | ||
1802 | /* Verify loading another RTL dump. */ | |
1803 | ||
1804 | static void | |
1805 | test_loading_dump_fragment_2 () | |
1806 | { | |
1807 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("simple-cse.rtl")); | |
1808 | ||
1809 | rtx_insn *insn_1 = get_insn_by_uid (1); | |
1810 | rtx_insn *insn_2 = get_insn_by_uid (2); | |
1811 | rtx_insn *insn_3 = get_insn_by_uid (3); | |
1812 | ||
1813 | rtx set1 = single_set (insn_1); | |
1814 | ASSERT_NE (NULL, set1); | |
1815 | rtx set2 = single_set (insn_2); | |
1816 | ASSERT_NE (NULL, set2); | |
1817 | rtx set3 = single_set (insn_3); | |
1818 | ASSERT_NE (NULL, set3); | |
1819 | ||
1820 | rtx src1 = SET_SRC (set1); | |
1821 | ASSERT_EQ (PLUS, GET_CODE (src1)); | |
1822 | ||
1823 | rtx src2 = SET_SRC (set2); | |
1824 | ASSERT_EQ (PLUS, GET_CODE (src2)); | |
1825 | ||
1826 | /* Both src1 and src2 refer to "(reg:SI %0)". | |
1827 | Verify that we have pointer equality. */ | |
1828 | rtx lhs1 = XEXP (src1, 0); | |
1829 | rtx lhs2 = XEXP (src2, 0); | |
1830 | ASSERT_EQ (lhs1, lhs2); | |
1831 | ||
1832 | /* Verify that the CFG was recreated. */ | |
1833 | ASSERT_TRUE (cfun); | |
1834 | verify_three_block_rtl_cfg (cfun); | |
1835 | } | |
1836 | ||
1837 | /* Verify that CODE_LABEL insns are loaded correctly. */ | |
1838 | ||
1839 | static void | |
1840 | test_loading_labels () | |
1841 | { | |
1842 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("example-labels.rtl")); | |
1843 | ||
1844 | rtx_insn *insn_100 = get_insn_by_uid (100); | |
1845 | ASSERT_EQ (CODE_LABEL, GET_CODE (insn_100)); | |
1846 | ASSERT_EQ (100, INSN_UID (insn_100)); | |
1847 | ASSERT_EQ (NULL, LABEL_NAME (insn_100)); | |
1848 | ASSERT_EQ (0, LABEL_NUSES (insn_100)); | |
1849 | ASSERT_EQ (30, CODE_LABEL_NUMBER (insn_100)); | |
1850 | ||
1851 | rtx_insn *insn_200 = get_insn_by_uid (200); | |
1852 | ASSERT_EQ (CODE_LABEL, GET_CODE (insn_200)); | |
1853 | ASSERT_EQ (200, INSN_UID (insn_200)); | |
1854 | ASSERT_STREQ ("some_label_name", LABEL_NAME (insn_200)); | |
1855 | ASSERT_EQ (0, LABEL_NUSES (insn_200)); | |
1856 | ASSERT_EQ (40, CODE_LABEL_NUMBER (insn_200)); | |
1857 | ||
1858 | /* Ensure that the presence of CODE_LABEL_NUMBER == 40 | |
1859 | means that the next label num to be handed out will be 41. */ | |
1860 | ASSERT_EQ (41, max_label_num ()); | |
1861 | ||
1862 | /* Ensure that label names read from a dump are GC-managed | |
1863 | and are found through the insn. */ | |
1864 | forcibly_ggc_collect (); | |
1865 | ASSERT_TRUE (ggc_marked_p (insn_200)); | |
1866 | ASSERT_TRUE (ggc_marked_p (LABEL_NAME (insn_200))); | |
1867 | } | |
1868 | ||
1869 | /* Verify that the loader copes with an insn with a mode. */ | |
1870 | ||
1871 | static void | |
1872 | test_loading_insn_with_mode () | |
1873 | { | |
1874 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("insn-with-mode.rtl")); | |
1875 | rtx_insn *insn = get_insns (); | |
1876 | ASSERT_EQ (INSN, GET_CODE (insn)); | |
1877 | ||
1878 | /* Verify that the "TI" mode was set from "insn:TI". */ | |
1879 | ASSERT_EQ (TImode, GET_MODE (insn)); | |
1880 | } | |
1881 | ||
1882 | /* Verify that the loader copes with a jump_insn to a label_ref. */ | |
1883 | ||
1884 | static void | |
1885 | test_loading_jump_to_label_ref () | |
1886 | { | |
1887 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("jump-to-label-ref.rtl")); | |
1888 | ||
1889 | rtx_insn *jump_insn = get_insn_by_uid (1); | |
1890 | ASSERT_EQ (JUMP_INSN, GET_CODE (jump_insn)); | |
1891 | ||
1892 | rtx_insn *barrier = get_insn_by_uid (2); | |
1893 | ASSERT_EQ (BARRIER, GET_CODE (barrier)); | |
1894 | ||
1895 | rtx_insn *code_label = get_insn_by_uid (100); | |
1896 | ASSERT_EQ (CODE_LABEL, GET_CODE (code_label)); | |
1897 | ||
1898 | /* Verify the jump_insn. */ | |
1899 | ASSERT_EQ (4, BLOCK_FOR_INSN (jump_insn)->index); | |
1900 | ASSERT_EQ (SET, GET_CODE (PATTERN (jump_insn))); | |
1901 | /* Ensure that the "(pc)" is using the global singleton. */ | |
1902 | ASSERT_RTX_PTR_EQ (pc_rtx, SET_DEST (PATTERN (jump_insn))); | |
1903 | rtx label_ref = SET_SRC (PATTERN (jump_insn)); | |
1904 | ASSERT_EQ (LABEL_REF, GET_CODE (label_ref)); | |
1905 | ASSERT_EQ (code_label, label_ref_label (label_ref)); | |
1906 | ASSERT_EQ (code_label, JUMP_LABEL (jump_insn)); | |
1907 | ||
1908 | /* Verify the code_label. */ | |
1909 | ASSERT_EQ (5, BLOCK_FOR_INSN (code_label)->index); | |
1910 | ASSERT_EQ (NULL, LABEL_NAME (code_label)); | |
1911 | ASSERT_EQ (1, LABEL_NUSES (code_label)); | |
1912 | ||
1913 | /* Verify the generated CFG. */ | |
1914 | ||
1915 | /* Locate blocks. */ | |
1916 | basic_block entry = ENTRY_BLOCK_PTR_FOR_FN (cfun); | |
1917 | ASSERT_TRUE (entry != NULL); | |
1918 | ASSERT_EQ (ENTRY_BLOCK, entry->index); | |
1919 | ||
1920 | basic_block exit = EXIT_BLOCK_PTR_FOR_FN (cfun); | |
1921 | ASSERT_TRUE (exit != NULL); | |
1922 | ASSERT_EQ (EXIT_BLOCK, exit->index); | |
1923 | ||
1924 | basic_block bb4 = (*cfun->cfg->x_basic_block_info)[4]; | |
1925 | basic_block bb5 = (*cfun->cfg->x_basic_block_info)[5]; | |
1926 | ASSERT_EQ (4, bb4->index); | |
1927 | ASSERT_EQ (5, bb5->index); | |
1928 | ||
1929 | /* Entry block. */ | |
1930 | ASSERT_EQ (NULL, entry->preds); | |
1931 | ASSERT_EQ (1, entry->succs->length ()); | |
1932 | ASSERT_EDGE ((*entry->succs)[0], 0, 4, EDGE_FALLTHRU); | |
1933 | ||
1934 | /* bb4. */ | |
1935 | ASSERT_EQ (1, bb4->preds->length ()); | |
1936 | ASSERT_EDGE ((*bb4->preds)[0], 0, 4, EDGE_FALLTHRU); | |
1937 | ASSERT_EQ (1, bb4->succs->length ()); | |
1938 | ASSERT_EDGE ((*bb4->succs)[0], 4, 5, 0x0); | |
1939 | ||
1940 | /* bb5. */ | |
1941 | ASSERT_EQ (1, bb5->preds->length ()); | |
1942 | ASSERT_EDGE ((*bb5->preds)[0], 4, 5, 0x0); | |
1943 | ASSERT_EQ (1, bb5->succs->length ()); | |
1944 | ASSERT_EDGE ((*bb5->succs)[0], 5, 1, EDGE_FALLTHRU); | |
1945 | ||
1946 | /* Exit block. */ | |
1947 | ASSERT_EQ (1, exit->preds->length ()); | |
1948 | ASSERT_EDGE ((*exit->preds)[0], 5, 1, EDGE_FALLTHRU); | |
1949 | ASSERT_EQ (NULL, exit->succs); | |
1950 | } | |
1951 | ||
1952 | /* Verify that the loader copes with a jump_insn to a label_ref | |
1953 | marked "return". */ | |
1954 | ||
1955 | static void | |
1956 | test_loading_jump_to_return () | |
1957 | { | |
1958 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("jump-to-return.rtl")); | |
1959 | ||
1960 | rtx_insn *jump_insn = get_insn_by_uid (1); | |
1961 | ASSERT_EQ (JUMP_INSN, GET_CODE (jump_insn)); | |
1962 | ASSERT_RTX_PTR_EQ (ret_rtx, JUMP_LABEL (jump_insn)); | |
1963 | } | |
1964 | ||
1965 | /* Verify that the loader copes with a jump_insn to a label_ref | |
1966 | marked "simple_return". */ | |
1967 | ||
1968 | static void | |
1969 | test_loading_jump_to_simple_return () | |
1970 | { | |
1971 | rtl_dump_test t (SELFTEST_LOCATION, | |
1972 | locate_file ("jump-to-simple-return.rtl")); | |
1973 | ||
1974 | rtx_insn *jump_insn = get_insn_by_uid (1); | |
1975 | ASSERT_EQ (JUMP_INSN, GET_CODE (jump_insn)); | |
1976 | ASSERT_RTX_PTR_EQ (simple_return_rtx, JUMP_LABEL (jump_insn)); | |
1977 | } | |
1978 | ||
1979 | /* Verify that the loader copes with a NOTE_INSN_BASIC_BLOCK. */ | |
1980 | ||
1981 | static void | |
1982 | test_loading_note_insn_basic_block () | |
1983 | { | |
1984 | rtl_dump_test t (SELFTEST_LOCATION, | |
1985 | locate_file ("note_insn_basic_block.rtl")); | |
1986 | ||
1987 | rtx_insn *note = get_insn_by_uid (1); | |
1988 | ASSERT_EQ (NOTE, GET_CODE (note)); | |
1989 | ASSERT_EQ (2, BLOCK_FOR_INSN (note)->index); | |
1990 | ||
1991 | ASSERT_EQ (NOTE_INSN_BASIC_BLOCK, NOTE_KIND (note)); | |
1992 | ASSERT_EQ (2, NOTE_BASIC_BLOCK (note)->index); | |
1993 | ASSERT_EQ (BASIC_BLOCK_FOR_FN (cfun, 2), NOTE_BASIC_BLOCK (note)); | |
1994 | } | |
1995 | ||
1996 | /* Verify that the loader copes with a NOTE_INSN_DELETED. */ | |
1997 | ||
1998 | static void | |
1999 | test_loading_note_insn_deleted () | |
2000 | { | |
2001 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("note-insn-deleted.rtl")); | |
2002 | ||
2003 | rtx_insn *note = get_insn_by_uid (1); | |
2004 | ASSERT_EQ (NOTE, GET_CODE (note)); | |
2005 | ASSERT_EQ (NOTE_INSN_DELETED, NOTE_KIND (note)); | |
2006 | } | |
2007 | ||
2008 | /* Verify that the const_int values are consolidated, since | |
2009 | pointer equality corresponds to value equality. | |
2010 | TODO: do this for all in CASE_CONST_UNIQUE. */ | |
2011 | ||
2012 | static void | |
2013 | test_loading_const_int () | |
2014 | { | |
2015 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("const-int.rtl")); | |
2016 | ||
2017 | /* Verify that const_int values below MAX_SAVED_CONST_INT use | |
2018 | the global values. */ | |
2019 | ASSERT_EQ (const0_rtx, SET_SRC (PATTERN (get_insn_by_uid (1)))); | |
2020 | ASSERT_EQ (const1_rtx, SET_SRC (PATTERN (get_insn_by_uid (2)))); | |
2021 | ASSERT_EQ (constm1_rtx, SET_SRC (PATTERN (get_insn_by_uid (3)))); | |
2022 | ||
2023 | /* Verify that other const_int values are consolidated. */ | |
2024 | rtx int256 = gen_rtx_CONST_INT (SImode, 256); | |
2025 | ASSERT_EQ (int256, SET_SRC (PATTERN (get_insn_by_uid (4)))); | |
2026 | } | |
2027 | ||
2028 | /* Verify that the loader copes with a SYMBOL_REF. */ | |
2029 | ||
2030 | static void | |
2031 | test_loading_symbol_ref () | |
2032 | { | |
2033 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("symbol-ref.rtl")); | |
2034 | ||
2035 | rtx_insn *insn = get_insns (); | |
2036 | ||
2037 | rtx high = SET_SRC (PATTERN (insn)); | |
2038 | ASSERT_EQ (HIGH, GET_CODE (high)); | |
2039 | ||
2040 | rtx symbol_ref = XEXP (high, 0); | |
2041 | ASSERT_EQ (SYMBOL_REF, GET_CODE (symbol_ref)); | |
2042 | ||
2043 | /* Verify that "[flags 0xc0]" was parsed. */ | |
2044 | ASSERT_EQ (0xc0, SYMBOL_REF_FLAGS (symbol_ref)); | |
2045 | /* TODO: we don't yet load SYMBOL_REF_DECL. */ | |
2046 | } | |
2047 | ||
2048 | /* Verify that the loader can rebuild a CFG. */ | |
2049 | ||
2050 | static void | |
2051 | test_loading_cfg () | |
2052 | { | |
2053 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("cfg-test.rtl")); | |
2054 | ||
2055 | ASSERT_STREQ ("cfg_test", IDENTIFIER_POINTER (DECL_NAME (cfun->decl))); | |
2056 | ||
2057 | ASSERT_TRUE (cfun); | |
2058 | ||
2059 | ASSERT_TRUE (cfun->cfg != NULL); | |
2060 | ASSERT_EQ (6, n_basic_blocks_for_fn (cfun)); | |
2061 | ASSERT_EQ (6, n_edges_for_fn (cfun)); | |
2062 | ||
2063 | /* The "fake" basic blocks. */ | |
2064 | basic_block entry = ENTRY_BLOCK_PTR_FOR_FN (cfun); | |
2065 | ASSERT_TRUE (entry != NULL); | |
2066 | ASSERT_EQ (ENTRY_BLOCK, entry->index); | |
2067 | ||
2068 | basic_block exit = EXIT_BLOCK_PTR_FOR_FN (cfun); | |
2069 | ASSERT_TRUE (exit != NULL); | |
2070 | ASSERT_EQ (EXIT_BLOCK, exit->index); | |
2071 | ||
2072 | /* The "real" basic blocks. */ | |
2073 | basic_block bb2 = (*cfun->cfg->x_basic_block_info)[2]; | |
2074 | basic_block bb3 = (*cfun->cfg->x_basic_block_info)[3]; | |
2075 | basic_block bb4 = (*cfun->cfg->x_basic_block_info)[4]; | |
2076 | basic_block bb5 = (*cfun->cfg->x_basic_block_info)[5]; | |
2077 | ||
2078 | ASSERT_EQ (2, bb2->index); | |
2079 | ASSERT_EQ (3, bb3->index); | |
2080 | ASSERT_EQ (4, bb4->index); | |
2081 | ASSERT_EQ (5, bb5->index); | |
2082 | ||
2083 | /* Verify connectivity. */ | |
2084 | ||
2085 | /* Entry block. */ | |
2086 | ASSERT_EQ (NULL, entry->preds); | |
2087 | ASSERT_EQ (1, entry->succs->length ()); | |
2088 | ASSERT_EDGE ((*entry->succs)[0], 0, 2, EDGE_FALLTHRU); | |
2089 | ||
2090 | /* bb2. */ | |
2091 | ASSERT_EQ (1, bb2->preds->length ()); | |
2092 | ASSERT_EDGE ((*bb2->preds)[0], 0, 2, EDGE_FALLTHRU); | |
2093 | ASSERT_EQ (2, bb2->succs->length ()); | |
2094 | ASSERT_EDGE ((*bb2->succs)[0], 2, 3, EDGE_TRUE_VALUE); | |
2095 | ASSERT_EDGE ((*bb2->succs)[1], 2, 4, EDGE_FALSE_VALUE); | |
2096 | ||
2097 | /* bb3. */ | |
2098 | ASSERT_EQ (1, bb3->preds->length ()); | |
2099 | ASSERT_EDGE ((*bb3->preds)[0], 2, 3, EDGE_TRUE_VALUE); | |
2100 | ASSERT_EQ (1, bb3->succs->length ()); | |
2101 | ASSERT_EDGE ((*bb3->succs)[0], 3, 5, EDGE_FALLTHRU); | |
2102 | ||
2103 | /* bb4. */ | |
2104 | ASSERT_EQ (1, bb4->preds->length ()); | |
2105 | ASSERT_EDGE ((*bb4->preds)[0], 2, 4, EDGE_FALSE_VALUE); | |
2106 | ASSERT_EQ (1, bb4->succs->length ()); | |
2107 | ASSERT_EDGE ((*bb4->succs)[0], 4, 5, EDGE_FALLTHRU); | |
2108 | ||
2109 | /* bb5. */ | |
2110 | ASSERT_EQ (2, bb5->preds->length ()); | |
2111 | ASSERT_EDGE ((*bb5->preds)[0], 3, 5, EDGE_FALLTHRU); | |
2112 | ASSERT_EDGE ((*bb5->preds)[1], 4, 5, EDGE_FALLTHRU); | |
2113 | ASSERT_EQ (1, bb5->succs->length ()); | |
2114 | ASSERT_EDGE ((*bb5->succs)[0], 5, 1, EDGE_FALLTHRU); | |
2115 | ||
2116 | /* Exit block. */ | |
2117 | ASSERT_EQ (1, exit->preds->length ()); | |
2118 | ASSERT_EDGE ((*exit->preds)[0], 5, 1, EDGE_FALLTHRU); | |
2119 | ASSERT_EQ (NULL, exit->succs); | |
2120 | } | |
2121 | ||
2122 | /* Verify that the loader copes with sparse block indices. | |
2123 | This testcase loads a file with a "(block 42)". */ | |
2124 | ||
2125 | static void | |
2126 | test_loading_bb_index () | |
2127 | { | |
2128 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("bb-index.rtl")); | |
2129 | ||
2130 | ASSERT_STREQ ("test_bb_index", IDENTIFIER_POINTER (DECL_NAME (cfun->decl))); | |
2131 | ||
2132 | ASSERT_TRUE (cfun); | |
2133 | ||
2134 | ASSERT_TRUE (cfun->cfg != NULL); | |
2135 | ASSERT_EQ (3, n_basic_blocks_for_fn (cfun)); | |
2136 | ASSERT_EQ (43, basic_block_info_for_fn (cfun)->length ()); | |
2137 | ASSERT_EQ (2, n_edges_for_fn (cfun)); | |
2138 | ||
2139 | ASSERT_EQ (NULL, (*cfun->cfg->x_basic_block_info)[41]); | |
2140 | basic_block bb42 = (*cfun->cfg->x_basic_block_info)[42]; | |
2141 | ASSERT_NE (NULL, bb42); | |
2142 | ASSERT_EQ (42, bb42->index); | |
2143 | } | |
2144 | ||
2145 | /* Verify that function_reader::handle_any_trailing_information correctly | |
2146 | parses all the possible items emitted for a MEM. */ | |
2147 | ||
2148 | static void | |
2149 | test_loading_mem () | |
2150 | { | |
2151 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("mem.rtl")); | |
2152 | ||
2153 | ASSERT_STREQ ("test_mem", IDENTIFIER_POINTER (DECL_NAME (cfun->decl))); | |
2154 | ASSERT_TRUE (cfun); | |
2155 | ||
2156 | /* Verify parsing of "[42 i+17 S8 A128 AS5]". */ | |
2157 | rtx_insn *insn_1 = get_insn_by_uid (1); | |
2158 | rtx set1 = single_set (insn_1); | |
2159 | rtx mem1 = SET_DEST (set1); | |
2160 | ASSERT_EQ (42, MEM_ALIAS_SET (mem1)); | |
2161 | /* "+17". */ | |
2162 | ASSERT_TRUE (MEM_OFFSET_KNOWN_P (mem1)); | |
d05d7551 | 2163 | ASSERT_KNOWN_EQ (17, MEM_OFFSET (mem1)); |
51b86113 | 2164 | /* "S8". */ |
d05d7551 | 2165 | ASSERT_KNOWN_EQ (8, MEM_SIZE (mem1)); |
51b86113 DM |
2166 | /* "A128. */ |
2167 | ASSERT_EQ (128, MEM_ALIGN (mem1)); | |
2168 | /* "AS5. */ | |
2169 | ASSERT_EQ (5, MEM_ADDR_SPACE (mem1)); | |
2170 | ||
2171 | /* Verify parsing of "43 i+18 S9 AS6" | |
2172 | (an address space without an alignment). */ | |
2173 | rtx_insn *insn_2 = get_insn_by_uid (2); | |
2174 | rtx set2 = single_set (insn_2); | |
2175 | rtx mem2 = SET_DEST (set2); | |
2176 | ASSERT_EQ (43, MEM_ALIAS_SET (mem2)); | |
2177 | /* "+18". */ | |
2178 | ASSERT_TRUE (MEM_OFFSET_KNOWN_P (mem2)); | |
d05d7551 | 2179 | ASSERT_KNOWN_EQ (18, MEM_OFFSET (mem2)); |
51b86113 | 2180 | /* "S9". */ |
d05d7551 | 2181 | ASSERT_KNOWN_EQ (9, MEM_SIZE (mem2)); |
51b86113 DM |
2182 | /* "AS6. */ |
2183 | ASSERT_EQ (6, MEM_ADDR_SPACE (mem2)); | |
2184 | } | |
2185 | ||
2045ae1d AS |
2186 | /* Verify that "repeated xN" is read correctly. */ |
2187 | ||
2188 | static void | |
2189 | test_loading_repeat () | |
2190 | { | |
2191 | rtl_dump_test t (SELFTEST_LOCATION, locate_file ("repeat.rtl")); | |
2192 | ||
2193 | rtx_insn *insn_1 = get_insn_by_uid (1); | |
2194 | ASSERT_EQ (PARALLEL, GET_CODE (PATTERN (insn_1))); | |
2195 | ASSERT_EQ (64, XVECLEN (PATTERN (insn_1), 0)); | |
2196 | for (int i = 0; i < 64; i++) | |
2197 | ASSERT_EQ (const0_rtx, XVECEXP (PATTERN (insn_1), 0, i)); | |
2198 | } | |
2199 | ||
51b86113 DM |
2200 | /* Run all of the selftests within this file. */ |
2201 | ||
2202 | void | |
2203 | read_rtl_function_c_tests () | |
2204 | { | |
2205 | test_edge_flags (); | |
2206 | test_parsing_regnos (); | |
2207 | test_loading_dump_fragment_1 (); | |
2208 | test_loading_dump_fragment_2 (); | |
2209 | test_loading_labels (); | |
2210 | test_loading_insn_with_mode (); | |
2211 | test_loading_jump_to_label_ref (); | |
2212 | test_loading_jump_to_return (); | |
2213 | test_loading_jump_to_simple_return (); | |
2214 | test_loading_note_insn_basic_block (); | |
2215 | test_loading_note_insn_deleted (); | |
2216 | test_loading_const_int (); | |
2217 | test_loading_symbol_ref (); | |
2218 | test_loading_cfg (); | |
2219 | test_loading_bb_index (); | |
2220 | test_loading_mem (); | |
2045ae1d | 2221 | test_loading_repeat (); |
51b86113 DM |
2222 | } |
2223 | ||
2224 | } // namespace selftest | |
2225 | ||
2226 | #endif /* #if CHECKING_P */ |