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35485da9 | 1 | /* Internals of libgccjit: classes for playing back recorded API calls. |
99dee823 | 2 | Copyright (C) 2013-2021 Free Software Foundation, Inc. |
35485da9 DM |
3 | Contributed by David Malcolm <dmalcolm@redhat.com>. |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GCC; see the file COPYING3. If not see | |
19 | <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #include "config.h" | |
22 | #include "system.h" | |
23 | #include "coretypes.h" | |
2adfab87 | 24 | #include "target.h" |
2adfab87 | 25 | #include "tree.h" |
2adfab87 AM |
26 | #include "stringpool.h" |
27 | #include "cgraph.h" | |
35485da9 | 28 | #include "dumpfile.h" |
35485da9 | 29 | #include "toplev.h" |
35485da9 | 30 | #include "tree-cfg.h" |
35485da9 | 31 | #include "convert.h" |
35485da9 DM |
32 | #include "stor-layout.h" |
33 | #include "print-tree.h" | |
34 | #include "gimplify.h" | |
35 | #include "gcc-driver-name.h" | |
eeafb319 | 36 | #include "attribs.h" |
463366a0 | 37 | #include "context.h" |
860e981c | 38 | #include "fold-const.h" |
98086b2b | 39 | #include "opt-suggestions.h" |
2cb844ce | 40 | #include "gcc.h" |
6b5423a5 | 41 | #include "diagnostic.h" |
421d0d0f | 42 | #include "stmt.h" |
35485da9 | 43 | |
1c652ccb IB |
44 | #include <pthread.h> |
45 | ||
35485da9 | 46 | #include "jit-playback.h" |
56dea35f | 47 | #include "jit-result.h" |
eeafb319 | 48 | #include "jit-builtins.h" |
d1e5f2c7 | 49 | #include "jit-tempdir.h" |
35485da9 | 50 | |
c83027f3 NB |
51 | #ifdef _WIN32 |
52 | #include "jit-w32.h" | |
53 | #endif | |
54 | ||
ee118c14 AC |
55 | /* Compare with gcc/c-family/c-common.h: DECL_C_BIT_FIELD, |
56 | SET_DECL_C_BIT_FIELD. | |
57 | These are redefined here to avoid depending from the C frontend. */ | |
58 | #define DECL_JIT_BIT_FIELD(NODE) \ | |
59 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) | |
60 | #define SET_DECL_JIT_BIT_FIELD(NODE) \ | |
61 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) | |
35485da9 DM |
62 | |
63 | /* gcc::jit::playback::context::build_cast uses the convert.h API, | |
64 | which in turn requires the frontend to provide a "convert" | |
65 | function, apparently as a fallback. | |
66 | ||
67 | Hence we provide this dummy one, with the requirement that any casts | |
68 | are handled before reaching this. */ | |
69 | extern tree convert (tree type, tree expr); | |
70 | ||
71 | tree | |
72 | convert (tree dst_type, tree expr) | |
73 | { | |
74 | gcc_assert (gcc::jit::active_playback_ctxt); | |
75 | gcc::jit::active_playback_ctxt->add_error (NULL, "unhandled conversion"); | |
76 | fprintf (stderr, "input expression:\n"); | |
77 | debug_tree (expr); | |
78 | fprintf (stderr, "requested type:\n"); | |
79 | debug_tree (dst_type); | |
80 | return error_mark_node; | |
81 | } | |
82 | ||
83 | namespace gcc { | |
84 | namespace jit { | |
85 | ||
86 | /********************************************************************** | |
87 | Playback. | |
88 | **********************************************************************/ | |
89 | ||
421d0d0f DM |
90 | /* Build a STRING_CST tree for STR, or return NULL if it is NULL. |
91 | The TREE_TYPE is not initialized. */ | |
92 | ||
93 | static tree | |
94 | build_string (const char *str) | |
95 | { | |
96 | if (str) | |
97 | return ::build_string (strlen (str), str); | |
98 | else | |
99 | return NULL_TREE; | |
100 | } | |
101 | ||
35485da9 DM |
102 | /* The constructor for gcc::jit::playback::context. */ |
103 | ||
104 | playback::context::context (recording::context *ctxt) | |
eb4c16eb DM |
105 | : log_user (ctxt->get_logger ()), |
106 | m_recording_ctxt (ctxt), | |
d1e5f2c7 | 107 | m_tempdir (NULL), |
35485da9 DM |
108 | m_const_char_ptr (NULL) |
109 | { | |
eb4c16eb | 110 | JIT_LOG_SCOPE (get_logger ()); |
35485da9 | 111 | m_functions.create (0); |
791cfef8 | 112 | m_globals.create (0); |
35485da9 DM |
113 | m_source_files.create (0); |
114 | m_cached_locations.create (0); | |
115 | } | |
116 | ||
117 | /* The destructor for gcc::jit::playback::context. */ | |
118 | ||
119 | playback::context::~context () | |
120 | { | |
eb4c16eb | 121 | JIT_LOG_SCOPE (get_logger ()); |
d2286af3 DM |
122 | |
123 | /* Normally the playback::context is responsible for cleaning up the | |
124 | tempdir (including "fake.so" within the filesystem). | |
125 | ||
126 | In the normal case, clean it up now. | |
127 | ||
128 | However m_tempdir can be NULL if the context has handed over | |
129 | responsibility for the tempdir cleanup to the jit::result object, so | |
130 | that the cleanup can be delayed (see PR jit/64206). If that's the | |
131 | case this "delete NULL;" is a no-op. */ | |
132 | delete m_tempdir; | |
133 | ||
35485da9 DM |
134 | m_functions.release (); |
135 | } | |
136 | ||
137 | /* A playback::context can reference GC-managed pointers. Mark them | |
138 | ("by hand", rather than by gengtype). | |
139 | ||
140 | This is called on the active playback context (if any) by the | |
141 | my_ggc_walker hook in the jit_root_table in dummy-frontend.c. */ | |
142 | ||
143 | void | |
144 | playback::context:: | |
145 | gt_ggc_mx () | |
146 | { | |
147 | int i; | |
148 | function *func; | |
149 | FOR_EACH_VEC_ELT (m_functions, i, func) | |
150 | { | |
151 | if (ggc_test_and_set_mark (func)) | |
152 | func->gt_ggc_mx (); | |
153 | } | |
154 | } | |
155 | ||
156 | /* Given an enum gcc_jit_types value, get a "tree" type. */ | |
157 | ||
158 | static tree | |
159 | get_tree_node_for_type (enum gcc_jit_types type_) | |
160 | { | |
161 | switch (type_) | |
162 | { | |
163 | case GCC_JIT_TYPE_VOID: | |
164 | return void_type_node; | |
165 | ||
166 | case GCC_JIT_TYPE_VOID_PTR: | |
167 | return ptr_type_node; | |
168 | ||
169 | case GCC_JIT_TYPE_BOOL: | |
170 | return boolean_type_node; | |
171 | ||
172 | case GCC_JIT_TYPE_CHAR: | |
173 | return char_type_node; | |
174 | case GCC_JIT_TYPE_SIGNED_CHAR: | |
175 | return signed_char_type_node; | |
176 | case GCC_JIT_TYPE_UNSIGNED_CHAR: | |
177 | return unsigned_char_type_node; | |
178 | ||
179 | case GCC_JIT_TYPE_SHORT: | |
180 | return short_integer_type_node; | |
181 | case GCC_JIT_TYPE_UNSIGNED_SHORT: | |
182 | return short_unsigned_type_node; | |
183 | ||
184 | case GCC_JIT_TYPE_CONST_CHAR_PTR: | |
185 | { | |
186 | tree const_char = build_qualified_type (char_type_node, | |
187 | TYPE_QUAL_CONST); | |
188 | return build_pointer_type (const_char); | |
189 | } | |
190 | ||
191 | case GCC_JIT_TYPE_INT: | |
192 | return integer_type_node; | |
193 | case GCC_JIT_TYPE_UNSIGNED_INT: | |
194 | return unsigned_type_node; | |
195 | ||
196 | case GCC_JIT_TYPE_LONG: | |
197 | return long_integer_type_node; | |
198 | case GCC_JIT_TYPE_UNSIGNED_LONG: | |
199 | return long_unsigned_type_node; | |
200 | ||
201 | case GCC_JIT_TYPE_LONG_LONG: | |
202 | return long_long_integer_type_node; | |
203 | case GCC_JIT_TYPE_UNSIGNED_LONG_LONG: | |
204 | return long_long_unsigned_type_node; | |
205 | ||
206 | case GCC_JIT_TYPE_FLOAT: | |
207 | return float_type_node; | |
208 | case GCC_JIT_TYPE_DOUBLE: | |
209 | return double_type_node; | |
210 | case GCC_JIT_TYPE_LONG_DOUBLE: | |
211 | return long_double_type_node; | |
212 | ||
213 | case GCC_JIT_TYPE_SIZE_T: | |
214 | return size_type_node; | |
215 | ||
216 | case GCC_JIT_TYPE_FILE_PTR: | |
217 | return fileptr_type_node; | |
eeafb319 DM |
218 | |
219 | case GCC_JIT_TYPE_COMPLEX_FLOAT: | |
220 | return complex_float_type_node; | |
221 | case GCC_JIT_TYPE_COMPLEX_DOUBLE: | |
222 | return complex_double_type_node; | |
223 | case GCC_JIT_TYPE_COMPLEX_LONG_DOUBLE: | |
224 | return complex_long_double_type_node; | |
35485da9 DM |
225 | } |
226 | ||
227 | return NULL; | |
228 | } | |
229 | ||
230 | /* Construct a playback::type instance (wrapping a tree) for the given | |
231 | enum value. */ | |
232 | ||
233 | playback::type * | |
234 | playback::context:: | |
235 | get_type (enum gcc_jit_types type_) | |
236 | { | |
237 | tree type_node = get_tree_node_for_type (type_); | |
01512446 | 238 | if (type_node == NULL) |
35485da9 | 239 | { |
01512446 | 240 | add_error (NULL, "unrecognized (enum gcc_jit_types) value: %i", type_); |
35485da9 DM |
241 | return NULL; |
242 | } | |
243 | ||
244 | return new type (type_node); | |
245 | } | |
246 | ||
247 | /* Construct a playback::type instance (wrapping a tree) for the given | |
248 | array type. */ | |
249 | ||
250 | playback::type * | |
251 | playback::context:: | |
252 | new_array_type (playback::location *loc, | |
253 | playback::type *element_type, | |
254 | int num_elements) | |
255 | { | |
256 | gcc_assert (element_type); | |
257 | ||
258 | tree t = build_array_type_nelts (element_type->as_tree (), | |
259 | num_elements); | |
260 | layout_type (t); | |
261 | ||
262 | if (loc) | |
263 | set_tree_location (t, loc); | |
264 | ||
265 | return new type (t); | |
266 | } | |
267 | ||
268 | /* Construct a playback::field instance (wrapping a tree). */ | |
269 | ||
270 | playback::field * | |
271 | playback::context:: | |
272 | new_field (location *loc, | |
273 | type *type, | |
274 | const char *name) | |
275 | { | |
276 | gcc_assert (type); | |
277 | gcc_assert (name); | |
278 | ||
279 | /* compare with c/c-decl.c:grokfield and grokdeclarator. */ | |
280 | tree decl = build_decl (UNKNOWN_LOCATION, FIELD_DECL, | |
281 | get_identifier (name), type->as_tree ()); | |
282 | ||
283 | if (loc) | |
284 | set_tree_location (decl, loc); | |
285 | ||
286 | return new field (decl); | |
287 | } | |
288 | ||
ee118c14 AC |
289 | /* Construct a playback::bitfield instance (wrapping a tree). */ |
290 | ||
291 | playback::field * | |
292 | playback::context:: | |
293 | new_bitfield (location *loc, | |
294 | type *type, | |
295 | int width, | |
296 | const char *name) | |
297 | { | |
298 | gcc_assert (type); | |
299 | gcc_assert (name); | |
300 | gcc_assert (width); | |
301 | ||
302 | /* compare with c/c-decl.c:grokfield, grokdeclarator and | |
303 | check_bitfield_type_and_width. */ | |
304 | ||
305 | tree tree_type = type->as_tree (); | |
306 | gcc_assert (INTEGRAL_TYPE_P (tree_type)); | |
307 | tree tree_width = build_int_cst (integer_type_node, width); | |
308 | if (compare_tree_int (tree_width, TYPE_PRECISION (tree_type)) > 0) | |
309 | { | |
310 | add_error ( | |
311 | loc, | |
312 | "width of bit-field %s (width: %i) is wider than its type (width: %i)", | |
313 | name, width, TYPE_PRECISION (tree_type)); | |
314 | return NULL; | |
315 | } | |
316 | ||
317 | tree decl = build_decl (UNKNOWN_LOCATION, FIELD_DECL, | |
318 | get_identifier (name), type->as_tree ()); | |
319 | DECL_NONADDRESSABLE_P (decl) = true; | |
320 | DECL_INITIAL (decl) = tree_width; | |
321 | SET_DECL_JIT_BIT_FIELD (decl); | |
322 | ||
323 | if (loc) | |
324 | set_tree_location (decl, loc); | |
325 | ||
326 | return new field (decl); | |
327 | } | |
328 | ||
35485da9 DM |
329 | /* Construct a playback::compound_type instance (wrapping a tree). */ |
330 | ||
331 | playback::compound_type * | |
332 | playback::context:: | |
333 | new_compound_type (location *loc, | |
334 | const char *name, | |
335 | bool is_struct) /* else is union */ | |
336 | { | |
337 | gcc_assert (name); | |
338 | ||
339 | /* Compare with c/c-decl.c: start_struct. */ | |
340 | ||
341 | tree t = make_node (is_struct ? RECORD_TYPE : UNION_TYPE); | |
342 | TYPE_NAME (t) = get_identifier (name); | |
343 | TYPE_SIZE (t) = 0; | |
344 | ||
345 | if (loc) | |
346 | set_tree_location (t, loc); | |
347 | ||
348 | return new compound_type (t); | |
349 | } | |
350 | ||
351 | void | |
b957b2e0 | 352 | playback::compound_type::set_fields (const auto_vec<playback::field *> *fields) |
35485da9 DM |
353 | { |
354 | /* Compare with c/c-decl.c: finish_struct. */ | |
355 | tree t = as_tree (); | |
356 | ||
357 | tree fieldlist = NULL; | |
b957b2e0 | 358 | for (unsigned i = 0; i < fields->length (); i++) |
35485da9 | 359 | { |
b957b2e0 | 360 | field *f = (*fields)[i]; |
ee118c14 AC |
361 | tree x = f->as_tree (); |
362 | DECL_CONTEXT (x) = t; | |
363 | if (DECL_JIT_BIT_FIELD (x)) | |
364 | { | |
365 | unsigned HOST_WIDE_INT width = tree_to_uhwi (DECL_INITIAL (x)); | |
366 | DECL_SIZE (x) = bitsize_int (width); | |
367 | DECL_BIT_FIELD (x) = 1; | |
368 | } | |
369 | fieldlist = chainon (x, fieldlist); | |
35485da9 DM |
370 | } |
371 | fieldlist = nreverse (fieldlist); | |
372 | TYPE_FIELDS (t) = fieldlist; | |
373 | ||
374 | layout_type (t); | |
375 | } | |
376 | ||
377 | /* Construct a playback::type instance (wrapping a tree) for a function | |
378 | type. */ | |
379 | ||
380 | playback::type * | |
381 | playback::context:: | |
382 | new_function_type (type *return_type, | |
b957b2e0 | 383 | const auto_vec<type *> *param_types, |
35485da9 DM |
384 | int is_variadic) |
385 | { | |
386 | int i; | |
387 | type *param_type; | |
388 | ||
389 | tree *arg_types = (tree *)xcalloc(param_types->length (), sizeof(tree*)); | |
390 | ||
391 | FOR_EACH_VEC_ELT (*param_types, i, param_type) | |
392 | arg_types[i] = param_type->as_tree (); | |
393 | ||
394 | tree fn_type; | |
395 | if (is_variadic) | |
396 | fn_type = | |
397 | build_varargs_function_type_array (return_type->as_tree (), | |
398 | param_types->length (), | |
399 | arg_types); | |
400 | else | |
401 | fn_type = build_function_type_array (return_type->as_tree (), | |
402 | param_types->length (), | |
403 | arg_types); | |
404 | free (arg_types); | |
405 | ||
406 | return new type (fn_type); | |
407 | } | |
408 | ||
409 | /* Construct a playback::param instance (wrapping a tree). */ | |
410 | ||
411 | playback::param * | |
412 | playback::context:: | |
413 | new_param (location *loc, | |
414 | type *type, | |
415 | const char *name) | |
416 | { | |
417 | gcc_assert (type); | |
418 | gcc_assert (name); | |
419 | tree inner = build_decl (UNKNOWN_LOCATION, PARM_DECL, | |
420 | get_identifier (name), type->as_tree ()); | |
421 | if (loc) | |
422 | set_tree_location (inner, loc); | |
423 | ||
424 | return new param (this, inner); | |
425 | } | |
426 | ||
427 | /* Construct a playback::function instance. */ | |
428 | ||
429 | playback::function * | |
430 | playback::context:: | |
431 | new_function (location *loc, | |
432 | enum gcc_jit_function_kind kind, | |
433 | type *return_type, | |
434 | const char *name, | |
b957b2e0 | 435 | const auto_vec<param *> *params, |
35485da9 DM |
436 | int is_variadic, |
437 | enum built_in_function builtin_id) | |
438 | { | |
439 | int i; | |
440 | param *param; | |
441 | ||
442 | //can return_type be NULL? | |
443 | gcc_assert (name); | |
444 | ||
445 | tree *arg_types = (tree *)xcalloc(params->length (), sizeof(tree*)); | |
446 | FOR_EACH_VEC_ELT (*params, i, param) | |
447 | arg_types[i] = TREE_TYPE (param->as_tree ()); | |
448 | ||
449 | tree fn_type; | |
450 | if (is_variadic) | |
451 | fn_type = build_varargs_function_type_array (return_type->as_tree (), | |
452 | params->length (), arg_types); | |
453 | else | |
454 | fn_type = build_function_type_array (return_type->as_tree (), | |
455 | params->length (), arg_types); | |
456 | free (arg_types); | |
457 | ||
458 | /* FIXME: this uses input_location: */ | |
459 | tree fndecl = build_fn_decl (name, fn_type); | |
460 | ||
461 | if (loc) | |
462 | set_tree_location (fndecl, loc); | |
463 | ||
464 | tree resdecl = build_decl (UNKNOWN_LOCATION, RESULT_DECL, | |
465 | NULL_TREE, return_type->as_tree ()); | |
466 | DECL_ARTIFICIAL (resdecl) = 1; | |
467 | DECL_IGNORED_P (resdecl) = 1; | |
468 | DECL_RESULT (fndecl) = resdecl; | |
469 | ||
470 | if (builtin_id) | |
471 | { | |
35485da9 DM |
472 | gcc_assert (loc == NULL); |
473 | DECL_SOURCE_LOCATION (fndecl) = BUILTINS_LOCATION; | |
eeafb319 | 474 | |
4d732405 RS |
475 | built_in_class fclass = builtins_manager::get_class (builtin_id); |
476 | set_decl_built_in_function (fndecl, fclass, builtin_id); | |
eeafb319 DM |
477 | set_builtin_decl (builtin_id, fndecl, |
478 | builtins_manager::implicit_p (builtin_id)); | |
479 | ||
480 | builtins_manager *bm = get_builtins_manager (); | |
481 | tree attrs = bm->get_attrs_tree (builtin_id); | |
482 | if (attrs) | |
483 | decl_attributes (&fndecl, attrs, ATTR_FLAG_BUILT_IN); | |
484 | else | |
485 | decl_attributes (&fndecl, NULL_TREE, 0); | |
35485da9 DM |
486 | } |
487 | ||
488 | if (kind != GCC_JIT_FUNCTION_IMPORTED) | |
489 | { | |
490 | tree param_decl_list = NULL; | |
491 | FOR_EACH_VEC_ELT (*params, i, param) | |
492 | { | |
493 | param_decl_list = chainon (param->as_tree (), param_decl_list); | |
494 | } | |
495 | ||
496 | /* The param list was created in reverse order; fix it: */ | |
497 | param_decl_list = nreverse (param_decl_list); | |
498 | ||
499 | tree t; | |
500 | for (t = param_decl_list; t; t = DECL_CHAIN (t)) | |
501 | { | |
502 | DECL_CONTEXT (t) = fndecl; | |
503 | DECL_ARG_TYPE (t) = TREE_TYPE (t); | |
504 | } | |
505 | ||
506 | /* Set it up on DECL_ARGUMENTS */ | |
507 | DECL_ARGUMENTS(fndecl) = param_decl_list; | |
508 | } | |
509 | ||
510 | if (kind == GCC_JIT_FUNCTION_ALWAYS_INLINE) | |
511 | { | |
512 | DECL_DECLARED_INLINE_P (fndecl) = 1; | |
513 | ||
514 | /* Add attribute "always_inline": */ | |
515 | DECL_ATTRIBUTES (fndecl) = | |
516 | tree_cons (get_identifier ("always_inline"), | |
517 | NULL, | |
518 | DECL_ATTRIBUTES (fndecl)); | |
519 | } | |
520 | ||
521 | function *func = new function (this, fndecl, kind); | |
522 | m_functions.safe_push (func); | |
523 | return func; | |
524 | } | |
525 | ||
4ecc0061 | 526 | /* In use by new_global and new_global_initialized. */ |
35485da9 | 527 | |
4ecc0061 | 528 | tree |
35485da9 | 529 | playback::context:: |
4ecc0061 AC |
530 | global_new_decl (location *loc, |
531 | enum gcc_jit_global_kind kind, | |
532 | type *type, | |
533 | const char *name) | |
35485da9 DM |
534 | { |
535 | gcc_assert (type); | |
536 | gcc_assert (name); | |
537 | tree inner = build_decl (UNKNOWN_LOCATION, VAR_DECL, | |
538 | get_identifier (name), | |
539 | type->as_tree ()); | |
791cfef8 | 540 | TREE_PUBLIC (inner) = (kind != GCC_JIT_GLOBAL_INTERNAL); |
35485da9 | 541 | DECL_COMMON (inner) = 1; |
791cfef8 DM |
542 | switch (kind) |
543 | { | |
544 | default: | |
545 | gcc_unreachable (); | |
546 | ||
547 | case GCC_JIT_GLOBAL_EXPORTED: | |
548 | TREE_STATIC (inner) = 1; | |
549 | break; | |
550 | ||
551 | case GCC_JIT_GLOBAL_INTERNAL: | |
552 | TREE_STATIC (inner) = 1; | |
553 | break; | |
554 | ||
555 | case GCC_JIT_GLOBAL_IMPORTED: | |
556 | DECL_EXTERNAL (inner) = 1; | |
557 | break; | |
558 | } | |
35485da9 DM |
559 | |
560 | if (loc) | |
561 | set_tree_location (inner, loc); | |
562 | ||
4ecc0061 AC |
563 | return inner; |
564 | } | |
565 | ||
566 | /* In use by new_global and new_global_initialized. */ | |
567 | ||
568 | playback::lvalue * | |
569 | playback::context:: | |
570 | global_finalize_lvalue (tree inner) | |
571 | { | |
791cfef8 DM |
572 | varpool_node::get_create (inner); |
573 | ||
e4753451 DM |
574 | varpool_node::finalize_decl (inner); |
575 | ||
791cfef8 DM |
576 | m_globals.safe_push (inner); |
577 | ||
35485da9 DM |
578 | return new lvalue (this, inner); |
579 | } | |
580 | ||
4ecc0061 AC |
581 | /* Construct a playback::lvalue instance (wrapping a tree). */ |
582 | ||
583 | playback::lvalue * | |
584 | playback::context:: | |
585 | new_global (location *loc, | |
586 | enum gcc_jit_global_kind kind, | |
587 | type *type, | |
588 | const char *name) | |
589 | { | |
590 | tree inner = global_new_decl (loc, kind, type, name); | |
591 | ||
592 | return global_finalize_lvalue (inner); | |
593 | } | |
594 | ||
595 | /* Fill 'constructor_elements' with the memory content of | |
596 | 'initializer'. Each element of the initializer is of the size of | |
597 | type T. In use by new_global_initialized.*/ | |
598 | ||
599 | template<typename T> | |
600 | static void | |
601 | load_blob_in_ctor (vec<constructor_elt, va_gc> *&constructor_elements, | |
602 | size_t num_elem, | |
603 | const void *initializer) | |
604 | { | |
605 | /* Loosely based on 'output_init_element' c-typeck.c:9691. */ | |
606 | const T *p = (const T *)initializer; | |
607 | tree node = make_unsigned_type (BITS_PER_UNIT * sizeof (T)); | |
608 | for (size_t i = 0; i < num_elem; i++) | |
609 | { | |
610 | constructor_elt celt = | |
611 | { build_int_cst (long_unsigned_type_node, i), | |
612 | build_int_cst (node, p[i]) }; | |
613 | vec_safe_push (constructor_elements, celt); | |
614 | } | |
615 | } | |
616 | ||
617 | /* Construct an initialized playback::lvalue instance (wrapping a | |
618 | tree). */ | |
619 | ||
620 | playback::lvalue * | |
621 | playback::context:: | |
622 | new_global_initialized (location *loc, | |
623 | enum gcc_jit_global_kind kind, | |
624 | type *type, | |
625 | size_t element_size, | |
626 | size_t initializer_num_elem, | |
627 | const void *initializer, | |
628 | const char *name) | |
629 | { | |
630 | tree inner = global_new_decl (loc, kind, type, name); | |
631 | ||
632 | vec<constructor_elt, va_gc> *constructor_elements = NULL; | |
633 | ||
634 | switch (element_size) | |
635 | { | |
636 | case 1: | |
637 | load_blob_in_ctor<uint8_t> (constructor_elements, initializer_num_elem, | |
638 | initializer); | |
639 | break; | |
640 | case 2: | |
641 | load_blob_in_ctor<uint16_t> (constructor_elements, initializer_num_elem, | |
642 | initializer); | |
643 | break; | |
644 | case 4: | |
645 | load_blob_in_ctor<uint32_t> (constructor_elements, initializer_num_elem, | |
646 | initializer); | |
647 | break; | |
648 | case 8: | |
649 | load_blob_in_ctor<uint64_t> (constructor_elements, initializer_num_elem, | |
650 | initializer); | |
651 | break; | |
652 | default: | |
653 | /* This function is serving on sizes returned by 'get_size', | |
654 | these are all covered by the previous cases. */ | |
655 | gcc_unreachable (); | |
656 | } | |
657 | /* Compare with 'pop_init_level' c-typeck.c:8780. */ | |
658 | tree ctor = build_constructor (type->as_tree (), constructor_elements); | |
659 | constructor_elements = NULL; | |
660 | ||
661 | /* Compare with 'store_init_value' c-typeck.c:7555. */ | |
662 | DECL_INITIAL (inner) = ctor; | |
663 | ||
664 | return global_finalize_lvalue (inner); | |
665 | } | |
666 | ||
ccce3b2a DM |
667 | /* Implementation of the various |
668 | gcc::jit::playback::context::new_rvalue_from_const <HOST_TYPE> | |
669 | methods. | |
670 | Each of these constructs a playback::rvalue instance (wrapping a tree). | |
35485da9 | 671 | |
ccce3b2a DM |
672 | These specializations are required to be in the same namespace |
673 | as the template, hence we now have to enter the gcc::jit::playback | |
674 | namespace. */ | |
675 | ||
676 | namespace playback | |
677 | { | |
678 | ||
679 | /* Specialization of making an rvalue from a const, for host <int>. */ | |
680 | ||
681 | template <> | |
682 | rvalue * | |
683 | context:: | |
684 | new_rvalue_from_const <int> (type *type, | |
685 | int value) | |
35485da9 DM |
686 | { |
687 | // FIXME: type-checking, or coercion? | |
688 | tree inner_type = type->as_tree (); | |
689 | if (INTEGRAL_TYPE_P (inner_type)) | |
690 | { | |
691 | tree inner = build_int_cst (inner_type, value); | |
692 | return new rvalue (this, inner); | |
693 | } | |
694 | else | |
695 | { | |
696 | REAL_VALUE_TYPE real_value; | |
697 | real_from_integer (&real_value, VOIDmode, value, SIGNED); | |
698 | tree inner = build_real (inner_type, real_value); | |
699 | return new rvalue (this, inner); | |
700 | } | |
701 | } | |
702 | ||
ccce3b2a | 703 | /* Specialization of making an rvalue from a const, for host <long>. */ |
35485da9 | 704 | |
ccce3b2a DM |
705 | template <> |
706 | rvalue * | |
707 | context:: | |
708 | new_rvalue_from_const <long> (type *type, | |
709 | long value) | |
710 | { | |
711 | // FIXME: type-checking, or coercion? | |
712 | tree inner_type = type->as_tree (); | |
713 | if (INTEGRAL_TYPE_P (inner_type)) | |
714 | { | |
715 | tree inner = build_int_cst (inner_type, value); | |
716 | return new rvalue (this, inner); | |
717 | } | |
718 | else | |
719 | { | |
720 | REAL_VALUE_TYPE real_value; | |
721 | real_from_integer (&real_value, VOIDmode, value, SIGNED); | |
722 | tree inner = build_real (inner_type, real_value); | |
723 | return new rvalue (this, inner); | |
724 | } | |
725 | } | |
726 | ||
727 | /* Specialization of making an rvalue from a const, for host <double>. */ | |
728 | ||
729 | template <> | |
730 | rvalue * | |
731 | context:: | |
732 | new_rvalue_from_const <double> (type *type, | |
733 | double value) | |
35485da9 DM |
734 | { |
735 | // FIXME: type-checking, or coercion? | |
736 | tree inner_type = type->as_tree (); | |
737 | ||
738 | /* We have a "double", we want a REAL_VALUE_TYPE. | |
739 | ||
740 | real.c:real_from_target appears to require the representation to be | |
741 | split into 32-bit values, and then sent as an pair of host long | |
742 | ints. */ | |
743 | REAL_VALUE_TYPE real_value; | |
744 | union | |
745 | { | |
746 | double as_double; | |
747 | uint32_t as_uint32s[2]; | |
748 | } u; | |
749 | u.as_double = value; | |
750 | long int as_long_ints[2]; | |
751 | as_long_ints[0] = u.as_uint32s[0]; | |
752 | as_long_ints[1] = u.as_uint32s[1]; | |
753 | real_from_target (&real_value, as_long_ints, DFmode); | |
754 | tree inner = build_real (inner_type, real_value); | |
755 | return new rvalue (this, inner); | |
756 | } | |
757 | ||
ccce3b2a | 758 | /* Specialization of making an rvalue from a const, for host <void *>. */ |
35485da9 | 759 | |
ccce3b2a DM |
760 | template <> |
761 | rvalue * | |
762 | context:: | |
763 | new_rvalue_from_const <void *> (type *type, | |
764 | void *value) | |
35485da9 DM |
765 | { |
766 | tree inner_type = type->as_tree (); | |
767 | /* FIXME: how to ensure we have a wide enough type? */ | |
768 | tree inner = build_int_cstu (inner_type, (unsigned HOST_WIDE_INT)value); | |
769 | return new rvalue (this, inner); | |
770 | } | |
771 | ||
ccce3b2a DM |
772 | /* We're done implementing the specializations of |
773 | gcc::jit::playback::context::new_rvalue_from_const <T> | |
774 | so we can exit the gcc::jit::playback namespace. */ | |
775 | ||
776 | } // namespace playback | |
777 | ||
35485da9 DM |
778 | /* Construct a playback::rvalue instance (wrapping a tree). */ |
779 | ||
780 | playback::rvalue * | |
781 | playback::context:: | |
782 | new_string_literal (const char *value) | |
783 | { | |
0cd55f9d A |
784 | /* Compare with c-family/c-common.c: fix_string_type. */ |
785 | size_t len = strlen (value); | |
786 | tree i_type = build_index_type (size_int (len)); | |
787 | tree a_type = build_array_type (char_type_node, i_type); | |
788 | /* build_string len parameter must include NUL terminator when | |
789 | building C strings. */ | |
421d0d0f | 790 | tree t_str = ::build_string (len + 1, value); |
0cd55f9d | 791 | TREE_TYPE (t_str) = a_type; |
35485da9 DM |
792 | |
793 | /* Convert to (const char*), loosely based on | |
794 | c/c-typeck.c: array_to_pointer_conversion, | |
795 | by taking address of start of string. */ | |
796 | tree t_addr = build1 (ADDR_EXPR, m_const_char_ptr, t_str); | |
797 | ||
798 | return new rvalue (this, t_addr); | |
799 | } | |
800 | ||
6069fe72 DM |
801 | /* Construct a playback::rvalue instance (wrapping a tree) for a |
802 | vector. */ | |
803 | ||
804 | playback::rvalue * | |
805 | playback::context::new_rvalue_from_vector (location *, | |
806 | type *type, | |
807 | const auto_vec<rvalue *> &elements) | |
808 | { | |
809 | vec<constructor_elt, va_gc> *v; | |
810 | vec_alloc (v, elements.length ()); | |
811 | for (unsigned i = 0; i < elements.length (); ++i) | |
812 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, elements[i]->as_tree ()); | |
813 | tree t_ctor = build_constructor (type->as_tree (), v); | |
814 | return new rvalue (this, t_ctor); | |
815 | } | |
816 | ||
35485da9 DM |
817 | /* Coerce a tree expression into a boolean tree expression. */ |
818 | ||
819 | tree | |
820 | playback::context:: | |
821 | as_truth_value (tree expr, location *loc) | |
822 | { | |
823 | /* Compare to c-typeck.c:c_objc_common_truthvalue_conversion */ | |
824 | tree typed_zero = fold_build1 (CONVERT_EXPR, | |
825 | TREE_TYPE (expr), | |
826 | integer_zero_node); | |
827 | if (loc) | |
828 | set_tree_location (typed_zero, loc); | |
829 | ||
830 | expr = build2 (NE_EXPR, integer_type_node, expr, typed_zero); | |
831 | if (loc) | |
832 | set_tree_location (expr, loc); | |
833 | ||
834 | return expr; | |
835 | } | |
836 | ||
421d0d0f DM |
837 | /* Add a "top-level" basic asm statement (i.e. one outside of any functions) |
838 | containing ASM_STMTS. | |
839 | ||
840 | Compare with c_parser_asm_definition. */ | |
841 | ||
842 | void | |
843 | playback::context::add_top_level_asm (const char *asm_stmts) | |
844 | { | |
845 | tree asm_str = build_string (asm_stmts); | |
846 | symtab->finalize_toplevel_asm (asm_str); | |
847 | } | |
848 | ||
35485da9 DM |
849 | /* Construct a playback::rvalue instance (wrapping a tree) for a |
850 | unary op. */ | |
851 | ||
852 | playback::rvalue * | |
853 | playback::context:: | |
854 | new_unary_op (location *loc, | |
855 | enum gcc_jit_unary_op op, | |
856 | type *result_type, | |
857 | rvalue *a) | |
858 | { | |
859 | // FIXME: type-checking, or coercion? | |
860 | enum tree_code inner_op; | |
861 | ||
862 | gcc_assert (result_type); | |
863 | gcc_assert (a); | |
864 | ||
865 | tree node = a->as_tree (); | |
866 | tree inner_result = NULL; | |
867 | ||
868 | switch (op) | |
869 | { | |
870 | default: | |
871 | add_error (loc, "unrecognized (enum gcc_jit_unary_op) value: %i", op); | |
872 | return NULL; | |
873 | ||
874 | case GCC_JIT_UNARY_OP_MINUS: | |
875 | inner_op = NEGATE_EXPR; | |
876 | break; | |
877 | ||
878 | case GCC_JIT_UNARY_OP_BITWISE_NEGATE: | |
879 | inner_op = BIT_NOT_EXPR; | |
880 | break; | |
881 | ||
882 | case GCC_JIT_UNARY_OP_LOGICAL_NEGATE: | |
883 | node = as_truth_value (node, loc); | |
884 | inner_result = invert_truthvalue (node); | |
885 | if (loc) | |
886 | set_tree_location (inner_result, loc); | |
887 | return new rvalue (this, inner_result); | |
18146f45 DM |
888 | |
889 | case GCC_JIT_UNARY_OP_ABS: | |
890 | inner_op = ABS_EXPR; | |
891 | break; | |
35485da9 DM |
892 | } |
893 | ||
894 | inner_result = build1 (inner_op, | |
895 | result_type->as_tree (), | |
896 | node); | |
897 | if (loc) | |
898 | set_tree_location (inner_result, loc); | |
899 | ||
900 | return new rvalue (this, inner_result); | |
901 | } | |
902 | ||
903 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
904 | binary op. */ | |
905 | ||
906 | playback::rvalue * | |
907 | playback::context:: | |
908 | new_binary_op (location *loc, | |
909 | enum gcc_jit_binary_op op, | |
910 | type *result_type, | |
911 | rvalue *a, rvalue *b) | |
912 | { | |
913 | // FIXME: type-checking, or coercion? | |
914 | enum tree_code inner_op; | |
915 | ||
916 | gcc_assert (result_type); | |
917 | gcc_assert (a); | |
918 | gcc_assert (b); | |
919 | ||
920 | tree node_a = a->as_tree (); | |
921 | tree node_b = b->as_tree (); | |
922 | ||
923 | switch (op) | |
924 | { | |
925 | default: | |
926 | add_error (loc, "unrecognized (enum gcc_jit_binary_op) value: %i", op); | |
927 | return NULL; | |
928 | ||
929 | case GCC_JIT_BINARY_OP_PLUS: | |
930 | inner_op = PLUS_EXPR; | |
931 | break; | |
932 | ||
933 | case GCC_JIT_BINARY_OP_MINUS: | |
934 | inner_op = MINUS_EXPR; | |
935 | break; | |
936 | ||
937 | case GCC_JIT_BINARY_OP_MULT: | |
938 | inner_op = MULT_EXPR; | |
939 | break; | |
940 | ||
941 | case GCC_JIT_BINARY_OP_DIVIDE: | |
942 | if (FLOAT_TYPE_P (result_type->as_tree ())) | |
943 | /* Floating-point division: */ | |
944 | inner_op = RDIV_EXPR; | |
945 | else | |
946 | /* Truncating to zero: */ | |
947 | inner_op = TRUNC_DIV_EXPR; | |
948 | break; | |
949 | ||
950 | case GCC_JIT_BINARY_OP_MODULO: | |
951 | inner_op = TRUNC_MOD_EXPR; | |
952 | break; | |
953 | ||
954 | case GCC_JIT_BINARY_OP_BITWISE_AND: | |
955 | inner_op = BIT_AND_EXPR; | |
956 | break; | |
957 | ||
958 | case GCC_JIT_BINARY_OP_BITWISE_XOR: | |
959 | inner_op = BIT_XOR_EXPR; | |
960 | break; | |
961 | ||
962 | case GCC_JIT_BINARY_OP_BITWISE_OR: | |
963 | inner_op = BIT_IOR_EXPR; | |
964 | break; | |
965 | ||
966 | case GCC_JIT_BINARY_OP_LOGICAL_AND: | |
967 | node_a = as_truth_value (node_a, loc); | |
968 | node_b = as_truth_value (node_b, loc); | |
969 | inner_op = TRUTH_ANDIF_EXPR; | |
970 | break; | |
971 | ||
972 | case GCC_JIT_BINARY_OP_LOGICAL_OR: | |
973 | node_a = as_truth_value (node_a, loc); | |
974 | node_b = as_truth_value (node_b, loc); | |
975 | inner_op = TRUTH_ORIF_EXPR; | |
976 | break; | |
977 | ||
978 | case GCC_JIT_BINARY_OP_LSHIFT: | |
979 | inner_op = LSHIFT_EXPR; | |
980 | break; | |
981 | ||
982 | case GCC_JIT_BINARY_OP_RSHIFT: | |
983 | inner_op = RSHIFT_EXPR; | |
984 | break; | |
985 | } | |
986 | ||
987 | tree inner_expr = build2 (inner_op, | |
988 | result_type->as_tree (), | |
989 | node_a, | |
990 | node_b); | |
991 | if (loc) | |
992 | set_tree_location (inner_expr, loc); | |
993 | ||
994 | return new rvalue (this, inner_expr); | |
995 | } | |
996 | ||
997 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
998 | comparison. */ | |
999 | ||
1000 | playback::rvalue * | |
1001 | playback::context:: | |
1002 | new_comparison (location *loc, | |
1003 | enum gcc_jit_comparison op, | |
1004 | rvalue *a, rvalue *b) | |
1005 | { | |
1006 | // FIXME: type-checking, or coercion? | |
1007 | enum tree_code inner_op; | |
1008 | ||
1009 | gcc_assert (a); | |
1010 | gcc_assert (b); | |
1011 | ||
1012 | switch (op) | |
1013 | { | |
1014 | default: | |
1015 | add_error (loc, "unrecognized (enum gcc_jit_comparison) value: %i", op); | |
1016 | return NULL; | |
1017 | ||
1018 | case GCC_JIT_COMPARISON_EQ: | |
1019 | inner_op = EQ_EXPR; | |
1020 | break; | |
1021 | case GCC_JIT_COMPARISON_NE: | |
1022 | inner_op = NE_EXPR; | |
1023 | break; | |
1024 | case GCC_JIT_COMPARISON_LT: | |
1025 | inner_op = LT_EXPR; | |
1026 | break; | |
1027 | case GCC_JIT_COMPARISON_LE: | |
1028 | inner_op = LE_EXPR; | |
1029 | break; | |
1030 | case GCC_JIT_COMPARISON_GT: | |
1031 | inner_op = GT_EXPR; | |
1032 | break; | |
1033 | case GCC_JIT_COMPARISON_GE: | |
1034 | inner_op = GE_EXPR; | |
1035 | break; | |
1036 | } | |
1037 | ||
1038 | tree inner_expr = build2 (inner_op, | |
1039 | boolean_type_node, | |
1040 | a->as_tree (), | |
1041 | b->as_tree ()); | |
1042 | if (loc) | |
1043 | set_tree_location (inner_expr, loc); | |
1044 | return new rvalue (this, inner_expr); | |
1045 | } | |
1046 | ||
1047 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
1048 | function call. */ | |
1049 | ||
1050 | playback::rvalue * | |
1051 | playback::context:: | |
1052 | build_call (location *loc, | |
1053 | tree fn_ptr, | |
15c671a7 DM |
1054 | const auto_vec<rvalue *> *args, |
1055 | bool require_tail_call) | |
35485da9 DM |
1056 | { |
1057 | vec<tree, va_gc> *tree_args; | |
b957b2e0 DM |
1058 | vec_alloc (tree_args, args->length ()); |
1059 | for (unsigned i = 0; i < args->length (); i++) | |
1060 | tree_args->quick_push ((*args)[i]->as_tree ()); | |
35485da9 DM |
1061 | |
1062 | if (loc) | |
1063 | set_tree_location (fn_ptr, loc); | |
1064 | ||
1065 | tree fn = TREE_TYPE (fn_ptr); | |
1066 | tree fn_type = TREE_TYPE (fn); | |
1067 | tree return_type = TREE_TYPE (fn_type); | |
1068 | ||
15c671a7 DM |
1069 | tree call = build_call_vec (return_type, |
1070 | fn_ptr, tree_args); | |
1071 | ||
1072 | if (require_tail_call) | |
1073 | CALL_EXPR_MUST_TAIL_CALL (call) = 1; | |
1074 | ||
1075 | return new rvalue (this, call); | |
35485da9 DM |
1076 | |
1077 | /* see c-typeck.c: build_function_call | |
1078 | which calls build_function_call_vec | |
1079 | ||
1080 | which does lots of checking, then: | |
1081 | result = build_call_array_loc (loc, TREE_TYPE (fntype), | |
1082 | function, nargs, argarray); | |
1083 | which is in tree.c | |
1084 | (see also build_call_vec) | |
1085 | */ | |
1086 | } | |
1087 | ||
1088 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
1089 | call to a specific function. */ | |
1090 | ||
1091 | playback::rvalue * | |
1092 | playback::context:: | |
1093 | new_call (location *loc, | |
1094 | function *func, | |
15c671a7 DM |
1095 | const auto_vec<rvalue *> *args, |
1096 | bool require_tail_call) | |
35485da9 DM |
1097 | { |
1098 | tree fndecl; | |
1099 | ||
1100 | gcc_assert (func); | |
1101 | ||
1102 | fndecl = func->as_fndecl (); | |
1103 | ||
1104 | tree fntype = TREE_TYPE (fndecl); | |
1105 | ||
1106 | tree fn = build1 (ADDR_EXPR, build_pointer_type (fntype), fndecl); | |
1107 | ||
15c671a7 | 1108 | return build_call (loc, fn, args, require_tail_call); |
35485da9 DM |
1109 | } |
1110 | ||
1111 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
1112 | call through a function pointer. */ | |
1113 | ||
1114 | playback::rvalue * | |
1115 | playback::context:: | |
1116 | new_call_through_ptr (location *loc, | |
1117 | rvalue *fn_ptr, | |
15c671a7 DM |
1118 | const auto_vec<rvalue *> *args, |
1119 | bool require_tail_call) | |
35485da9 DM |
1120 | { |
1121 | gcc_assert (fn_ptr); | |
1122 | tree t_fn_ptr = fn_ptr->as_tree (); | |
1123 | ||
15c671a7 | 1124 | return build_call (loc, t_fn_ptr, args, require_tail_call); |
35485da9 DM |
1125 | } |
1126 | ||
1127 | /* Construct a tree for a cast. */ | |
1128 | ||
1129 | tree | |
1130 | playback::context::build_cast (playback::location *loc, | |
1131 | playback::rvalue *expr, | |
1132 | playback::type *type_) | |
1133 | { | |
1134 | /* For comparison, see: | |
1135 | - c/c-typeck.c:build_c_cast | |
1136 | - c/c-convert.c: convert | |
1137 | - convert.h | |
1138 | ||
1139 | Only some kinds of cast are currently supported here. */ | |
1140 | tree t_expr = expr->as_tree (); | |
1141 | tree t_dst_type = type_->as_tree (); | |
1142 | tree t_ret = NULL; | |
1143 | t_ret = targetm.convert_to_type (t_dst_type, t_expr); | |
1144 | if (t_ret) | |
1145 | return t_ret; | |
1146 | enum tree_code dst_code = TREE_CODE (t_dst_type); | |
1147 | switch (dst_code) | |
1148 | { | |
1149 | case INTEGER_TYPE: | |
1150 | case ENUMERAL_TYPE: | |
1151 | t_ret = convert_to_integer (t_dst_type, t_expr); | |
1152 | goto maybe_fold; | |
1153 | ||
1154 | case BOOLEAN_TYPE: | |
1155 | /* Compare with c_objc_common_truthvalue_conversion and | |
1156 | c_common_truthvalue_conversion. */ | |
1157 | /* For now, convert to: (t_expr != 0) */ | |
1158 | t_ret = build2 (NE_EXPR, t_dst_type, | |
e8af59bc DM |
1159 | t_expr, |
1160 | build_int_cst (TREE_TYPE (t_expr), 0)); | |
35485da9 DM |
1161 | goto maybe_fold; |
1162 | ||
1163 | case REAL_TYPE: | |
1164 | t_ret = convert_to_real (t_dst_type, t_expr); | |
1165 | goto maybe_fold; | |
1166 | ||
1167 | case POINTER_TYPE: | |
1168 | t_ret = build1 (NOP_EXPR, t_dst_type, t_expr); | |
1169 | goto maybe_fold; | |
1170 | ||
1171 | default: | |
1172 | add_error (loc, "couldn't handle cast during playback"); | |
1173 | fprintf (stderr, "input expression:\n"); | |
1174 | debug_tree (t_expr); | |
1175 | fprintf (stderr, "requested type:\n"); | |
1176 | debug_tree (t_dst_type); | |
1177 | return error_mark_node; | |
1178 | ||
1179 | maybe_fold: | |
1180 | if (TREE_CODE (t_ret) != C_MAYBE_CONST_EXPR) | |
1181 | t_ret = fold (t_ret); | |
1182 | return t_ret; | |
1183 | } | |
1184 | } | |
1185 | ||
1186 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
1187 | cast. */ | |
1188 | ||
1189 | playback::rvalue * | |
1190 | playback::context:: | |
1191 | new_cast (playback::location *loc, | |
1192 | playback::rvalue *expr, | |
1193 | playback::type *type_) | |
1194 | { | |
1195 | ||
1196 | tree t_cast = build_cast (loc, expr, type_); | |
1197 | if (loc) | |
1198 | set_tree_location (t_cast, loc); | |
1199 | return new rvalue (this, t_cast); | |
1200 | } | |
1201 | ||
1202 | /* Construct a playback::lvalue instance (wrapping a tree) for an | |
1203 | array access. */ | |
1204 | ||
1205 | playback::lvalue * | |
1206 | playback::context:: | |
1207 | new_array_access (location *loc, | |
1208 | rvalue *ptr, | |
1209 | rvalue *index) | |
1210 | { | |
1211 | gcc_assert (ptr); | |
1212 | gcc_assert (index); | |
1213 | ||
1214 | /* For comparison, see: | |
1215 | c/c-typeck.c: build_array_ref | |
1216 | c-family/c-common.c: pointer_int_sum | |
1217 | */ | |
1218 | tree t_ptr = ptr->as_tree (); | |
1219 | tree t_index = index->as_tree (); | |
1220 | tree t_type_ptr = TREE_TYPE (t_ptr); | |
1221 | tree t_type_star_ptr = TREE_TYPE (t_type_ptr); | |
1222 | ||
1223 | if (TREE_CODE (t_type_ptr) == ARRAY_TYPE) | |
1224 | { | |
1225 | tree t_result = build4 (ARRAY_REF, t_type_star_ptr, t_ptr, t_index, | |
1226 | NULL_TREE, NULL_TREE); | |
1227 | if (loc) | |
c168eab9 | 1228 | set_tree_location (t_result, loc); |
35485da9 DM |
1229 | return new lvalue (this, t_result); |
1230 | } | |
1231 | else | |
1232 | { | |
1233 | /* Convert index to an offset in bytes. */ | |
1234 | tree t_sizeof = size_in_bytes (t_type_star_ptr); | |
1235 | t_index = fold_build1 (CONVERT_EXPR, sizetype, t_index); | |
1236 | tree t_offset = build2 (MULT_EXPR, sizetype, t_index, t_sizeof); | |
1237 | ||
1238 | /* Locate (ptr + offset). */ | |
1239 | tree t_address = build2 (POINTER_PLUS_EXPR, t_type_ptr, t_ptr, t_offset); | |
1240 | ||
1241 | tree t_indirection = build1 (INDIRECT_REF, t_type_star_ptr, t_address); | |
1242 | if (loc) | |
c168eab9 UD |
1243 | { |
1244 | set_tree_location (t_sizeof, loc); | |
1245 | set_tree_location (t_offset, loc); | |
1246 | set_tree_location (t_address, loc); | |
1247 | set_tree_location (t_indirection, loc); | |
1248 | } | |
35485da9 DM |
1249 | |
1250 | return new lvalue (this, t_indirection); | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | /* Construct a tree for a field access. */ | |
1255 | ||
1256 | tree | |
1257 | playback::context:: | |
1258 | new_field_access (location *loc, | |
1259 | tree datum, | |
1260 | field *field) | |
1261 | { | |
1262 | gcc_assert (datum); | |
1263 | gcc_assert (field); | |
1264 | ||
1265 | /* Compare with c/c-typeck.c:lookup_field, build_indirect_ref, and | |
1266 | build_component_ref. */ | |
1267 | tree type = TREE_TYPE (datum); | |
1268 | gcc_assert (type); | |
1269 | gcc_assert (TREE_CODE (type) != POINTER_TYPE); | |
1270 | ||
1271 | tree t_field = field->as_tree (); | |
1272 | tree ref = build3 (COMPONENT_REF, TREE_TYPE (t_field), datum, | |
1273 | t_field, NULL_TREE); | |
1274 | if (loc) | |
1275 | set_tree_location (ref, loc); | |
1276 | return ref; | |
1277 | } | |
1278 | ||
1279 | /* Construct a tree for a dereference. */ | |
1280 | ||
1281 | tree | |
1282 | playback::context:: | |
1283 | new_dereference (tree ptr, | |
1284 | location *loc) | |
1285 | { | |
1286 | gcc_assert (ptr); | |
1287 | ||
1288 | tree type = TREE_TYPE (TREE_TYPE(ptr)); | |
1289 | tree datum = build1 (INDIRECT_REF, type, ptr); | |
1290 | if (loc) | |
1291 | set_tree_location (datum, loc); | |
1292 | return datum; | |
1293 | } | |
1294 | ||
0ebd1f00 DM |
1295 | /* Construct a playback::type instance (wrapping a tree) |
1296 | with the given alignment. */ | |
1297 | ||
1298 | playback::type * | |
1299 | playback::type:: | |
1300 | get_aligned (size_t alignment_in_bytes) const | |
1301 | { | |
1302 | tree t_new_type = build_variant_type_copy (m_inner); | |
1303 | ||
1304 | SET_TYPE_ALIGN (t_new_type, alignment_in_bytes * BITS_PER_UNIT); | |
1305 | TYPE_USER_ALIGN (t_new_type) = 1; | |
1306 | ||
1307 | return new type (t_new_type); | |
1308 | } | |
1309 | ||
47ee1b7c DM |
1310 | /* Construct a playback::type instance (wrapping a tree) |
1311 | for the given vector type. */ | |
1312 | ||
1313 | playback::type * | |
1314 | playback::type:: | |
1315 | get_vector (size_t num_units) const | |
1316 | { | |
1317 | tree t_new_type = build_vector_type (m_inner, num_units); | |
1318 | return new type (t_new_type); | |
1319 | } | |
1320 | ||
35485da9 DM |
1321 | /* Construct a playback::lvalue instance (wrapping a tree) for a |
1322 | field access. */ | |
1323 | ||
1324 | playback::lvalue * | |
1325 | playback::lvalue:: | |
1326 | access_field (location *loc, | |
1327 | field *field) | |
1328 | { | |
1329 | tree datum = as_tree (); | |
1330 | tree ref = get_context ()->new_field_access (loc, datum, field); | |
1331 | if (!ref) | |
1332 | return NULL; | |
1333 | return new lvalue (get_context (), ref); | |
1334 | } | |
1335 | ||
1336 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
1337 | field access. */ | |
1338 | ||
1339 | playback::rvalue * | |
1340 | playback::rvalue:: | |
1341 | access_field (location *loc, | |
1342 | field *field) | |
1343 | { | |
1344 | tree datum = as_tree (); | |
1345 | tree ref = get_context ()->new_field_access (loc, datum, field); | |
1346 | if (!ref) | |
1347 | return NULL; | |
1348 | return new rvalue (get_context (), ref); | |
1349 | } | |
1350 | ||
1351 | /* Construct a playback::lvalue instance (wrapping a tree) for a | |
1352 | dereferenced field access. */ | |
1353 | ||
1354 | playback::lvalue * | |
1355 | playback::rvalue:: | |
1356 | dereference_field (location *loc, | |
1357 | field *field) | |
1358 | { | |
1359 | tree ptr = as_tree (); | |
1360 | tree datum = get_context ()->new_dereference (ptr, loc); | |
1361 | if (!datum) | |
1362 | return NULL; | |
1363 | tree ref = get_context ()->new_field_access (loc, datum, field); | |
1364 | if (!ref) | |
1365 | return NULL; | |
1366 | return new lvalue (get_context (), ref); | |
1367 | } | |
1368 | ||
1369 | /* Construct a playback::lvalue instance (wrapping a tree) for a | |
1370 | dereference. */ | |
1371 | ||
1372 | playback::lvalue * | |
1373 | playback::rvalue:: | |
1374 | dereference (location *loc) | |
1375 | { | |
1376 | tree ptr = as_tree (); | |
1377 | tree datum = get_context ()->new_dereference (ptr, loc); | |
1378 | return new lvalue (get_context (), datum); | |
1379 | } | |
1380 | ||
ee118c14 | 1381 | /* Mark the lvalue saying that we need to be able to take the |
e09abfa4 | 1382 | address of it; it should not be allocated in a register. |
ee118c14 AC |
1383 | Compare with e.g. c/c-typeck.c: c_mark_addressable really_atomic_lvalue. |
1384 | Returns false if a failure occurred (an error will already have been | |
1385 | added to the active context for this case). */ | |
e09abfa4 | 1386 | |
ee118c14 AC |
1387 | bool |
1388 | playback::lvalue:: | |
1389 | mark_addressable (location *loc) | |
e09abfa4 | 1390 | { |
ee118c14 | 1391 | tree x = as_tree ();; |
e09abfa4 DM |
1392 | |
1393 | while (1) | |
1394 | switch (TREE_CODE (x)) | |
1395 | { | |
1396 | case COMPONENT_REF: | |
ee118c14 AC |
1397 | if (DECL_JIT_BIT_FIELD (TREE_OPERAND (x, 1))) |
1398 | { | |
1399 | gcc_assert (gcc::jit::active_playback_ctxt); | |
1400 | gcc::jit:: | |
1401 | active_playback_ctxt->add_error (loc, | |
1402 | "cannot take address of " | |
1403 | "bit-field"); | |
1404 | return false; | |
1405 | } | |
e09abfa4 DM |
1406 | /* fallthrough */ |
1407 | case ADDR_EXPR: | |
1408 | case ARRAY_REF: | |
1409 | case REALPART_EXPR: | |
1410 | case IMAGPART_EXPR: | |
1411 | x = TREE_OPERAND (x, 0); | |
1412 | break; | |
1413 | ||
1414 | case COMPOUND_LITERAL_EXPR: | |
1415 | case CONSTRUCTOR: | |
1416 | TREE_ADDRESSABLE (x) = 1; | |
ee118c14 | 1417 | return true; |
e09abfa4 DM |
1418 | |
1419 | case VAR_DECL: | |
1420 | case CONST_DECL: | |
1421 | case PARM_DECL: | |
1422 | case RESULT_DECL: | |
1423 | /* (we don't have a concept of a "register" declaration) */ | |
1424 | /* fallthrough */ | |
1425 | case FUNCTION_DECL: | |
1426 | TREE_ADDRESSABLE (x) = 1; | |
1427 | /* fallthrough */ | |
1428 | default: | |
ee118c14 | 1429 | return true; |
e09abfa4 DM |
1430 | } |
1431 | } | |
1432 | ||
35485da9 DM |
1433 | /* Construct a playback::rvalue instance (wrapping a tree) for an |
1434 | address-lookup. */ | |
1435 | ||
1436 | playback::rvalue * | |
1437 | playback::lvalue:: | |
1438 | get_address (location *loc) | |
1439 | { | |
1440 | tree t_lvalue = as_tree (); | |
1441 | tree t_thistype = TREE_TYPE (t_lvalue); | |
1442 | tree t_ptrtype = build_pointer_type (t_thistype); | |
1443 | tree ptr = build1 (ADDR_EXPR, t_ptrtype, t_lvalue); | |
1444 | if (loc) | |
1445 | get_context ()->set_tree_location (ptr, loc); | |
ee118c14 AC |
1446 | if (mark_addressable (loc)) |
1447 | return new rvalue (get_context (), ptr); | |
1448 | else | |
1449 | return NULL; | |
35485da9 DM |
1450 | } |
1451 | ||
b957b2e0 DM |
1452 | /* The wrapper subclasses are GC-managed, but can own non-GC memory. |
1453 | Provide this finalization hook for calling then they are collected, | |
1454 | which calls the finalizer vfunc. This allows them to call "release" | |
1455 | on any vec<> within them. */ | |
1456 | ||
1457 | static void | |
1458 | wrapper_finalizer (void *ptr) | |
1459 | { | |
1460 | playback::wrapper *wrapper = reinterpret_cast <playback::wrapper *> (ptr); | |
1461 | wrapper->finalizer (); | |
1462 | } | |
1463 | ||
35485da9 DM |
1464 | /* gcc::jit::playback::wrapper subclasses are GC-managed: |
1465 | allocate them using ggc_internal_cleared_alloc. */ | |
1466 | ||
1467 | void * | |
1468 | playback::wrapper:: | |
1469 | operator new (size_t sz) | |
1470 | { | |
b957b2e0 DM |
1471 | return ggc_internal_cleared_alloc (sz, wrapper_finalizer, 0, 1); |
1472 | ||
35485da9 DM |
1473 | } |
1474 | ||
1475 | /* Constructor for gcc:jit::playback::function. */ | |
1476 | ||
1477 | playback::function:: | |
1478 | function (context *ctxt, | |
1479 | tree fndecl, | |
1480 | enum gcc_jit_function_kind kind) | |
1481 | : m_ctxt(ctxt), | |
1482 | m_inner_fndecl (fndecl), | |
1483 | m_inner_bind_expr (NULL), | |
1484 | m_kind (kind) | |
1485 | { | |
1486 | if (m_kind != GCC_JIT_FUNCTION_IMPORTED) | |
1487 | { | |
1488 | /* Create a BIND_EXPR, and within it, a statement list. */ | |
1489 | m_stmt_list = alloc_stmt_list (); | |
1490 | m_stmt_iter = tsi_start (m_stmt_list); | |
1491 | m_inner_block = make_node (BLOCK); | |
1492 | m_inner_bind_expr = | |
1493 | build3 (BIND_EXPR, void_type_node, NULL, m_stmt_list, m_inner_block); | |
1494 | } | |
1495 | else | |
1496 | { | |
1497 | m_inner_block = NULL; | |
1498 | m_stmt_list = NULL; | |
1499 | } | |
1500 | } | |
1501 | ||
1502 | /* Hand-written GC-marking hook for playback functions. */ | |
1503 | ||
1504 | void | |
1505 | playback::function:: | |
1506 | gt_ggc_mx () | |
1507 | { | |
1508 | gt_ggc_m_9tree_node (m_inner_fndecl); | |
1509 | gt_ggc_m_9tree_node (m_inner_bind_expr); | |
1510 | gt_ggc_m_9tree_node (m_stmt_list); | |
1511 | gt_ggc_m_9tree_node (m_inner_block); | |
1512 | } | |
1513 | ||
b957b2e0 DM |
1514 | /* Don't leak vec's internal buffer (in non-GC heap) when we are |
1515 | GC-ed. */ | |
1516 | ||
1517 | void | |
1518 | playback::function::finalizer () | |
1519 | { | |
1520 | m_blocks.release (); | |
1521 | } | |
1522 | ||
35485da9 DM |
1523 | /* Get the return type of a playback function, in tree form. */ |
1524 | ||
1525 | tree | |
1526 | playback::function:: | |
1527 | get_return_type_as_tree () const | |
1528 | { | |
1529 | return TREE_TYPE (TREE_TYPE(m_inner_fndecl)); | |
1530 | } | |
1531 | ||
1532 | /* Construct a new local within this playback::function. */ | |
1533 | ||
1534 | playback::lvalue * | |
1535 | playback::function:: | |
1536 | new_local (location *loc, | |
1537 | type *type, | |
1538 | const char *name) | |
1539 | { | |
1540 | gcc_assert (type); | |
1541 | gcc_assert (name); | |
1542 | tree inner = build_decl (UNKNOWN_LOCATION, VAR_DECL, | |
1543 | get_identifier (name), | |
1544 | type->as_tree ()); | |
1545 | DECL_CONTEXT (inner) = this->m_inner_fndecl; | |
1546 | ||
1547 | /* Prepend to BIND_EXPR_VARS: */ | |
1548 | DECL_CHAIN (inner) = BIND_EXPR_VARS (m_inner_bind_expr); | |
1549 | BIND_EXPR_VARS (m_inner_bind_expr) = inner; | |
1550 | ||
1551 | if (loc) | |
1552 | set_tree_location (inner, loc); | |
1553 | return new lvalue (m_ctxt, inner); | |
1554 | } | |
1555 | ||
1556 | /* Construct a new block within this playback::function. */ | |
1557 | ||
1558 | playback::block * | |
1559 | playback::function:: | |
1560 | new_block (const char *name) | |
1561 | { | |
1562 | gcc_assert (m_kind != GCC_JIT_FUNCTION_IMPORTED); | |
1563 | ||
1564 | block *result = new playback::block (this, name); | |
1565 | m_blocks.safe_push (result); | |
1566 | return result; | |
1567 | } | |
1568 | ||
15a65e63 DM |
1569 | /* Construct a playback::rvalue instance wrapping an ADDR_EXPR for |
1570 | this playback::function. */ | |
1571 | ||
1572 | playback::rvalue * | |
1573 | playback::function::get_address (location *loc) | |
1574 | { | |
1575 | tree t_fndecl = as_fndecl (); | |
1576 | tree t_fntype = TREE_TYPE (t_fndecl); | |
1577 | tree t_fnptr = build1 (ADDR_EXPR, build_pointer_type (t_fntype), t_fndecl); | |
1578 | if (loc) | |
1579 | m_ctxt->set_tree_location (t_fnptr, loc); | |
1580 | return new rvalue (m_ctxt, t_fnptr); | |
1581 | } | |
1582 | ||
35485da9 DM |
1583 | /* Build a statement list for the function as a whole out of the |
1584 | lists of statements for the individual blocks, building labels | |
1585 | for each block. */ | |
1586 | ||
1587 | void | |
1588 | playback::function:: | |
1589 | build_stmt_list () | |
1590 | { | |
1591 | int i; | |
1592 | block *b; | |
1593 | ||
eb4c16eb DM |
1594 | JIT_LOG_SCOPE (m_ctxt->get_logger ()); |
1595 | ||
35485da9 DM |
1596 | FOR_EACH_VEC_ELT (m_blocks, i, b) |
1597 | { | |
1598 | int j; | |
1599 | tree stmt; | |
1600 | ||
1601 | b->m_label_expr = build1 (LABEL_EXPR, | |
1602 | void_type_node, | |
1603 | b->as_label_decl ()); | |
1604 | tsi_link_after (&m_stmt_iter, b->m_label_expr, TSI_CONTINUE_LINKING); | |
1605 | ||
1606 | FOR_EACH_VEC_ELT (b->m_stmts, j, stmt) | |
1607 | tsi_link_after (&m_stmt_iter, stmt, TSI_CONTINUE_LINKING); | |
1608 | } | |
1609 | } | |
1610 | ||
1611 | /* Finish compiling the given function, potentially running the | |
1612 | garbage-collector. | |
1613 | The function will have a statement list by now. | |
1614 | Amongst other things, this gimplifies the statement list, | |
1615 | and calls cgraph_node::finalize_function on the function. */ | |
1616 | ||
1617 | void | |
1618 | playback::function:: | |
1619 | postprocess () | |
1620 | { | |
eb4c16eb DM |
1621 | JIT_LOG_SCOPE (m_ctxt->get_logger ()); |
1622 | ||
35485da9 DM |
1623 | if (m_ctxt->get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_INITIAL_TREE)) |
1624 | debug_tree (m_stmt_list); | |
1625 | ||
1626 | /* Do we need this to force cgraphunit.c to output the function? */ | |
1627 | if (m_kind == GCC_JIT_FUNCTION_EXPORTED) | |
1628 | { | |
1629 | DECL_EXTERNAL (m_inner_fndecl) = 0; | |
1630 | DECL_PRESERVE_P (m_inner_fndecl) = 1; | |
1631 | } | |
1632 | ||
1633 | if (m_kind == GCC_JIT_FUNCTION_INTERNAL | |
1634 | ||m_kind == GCC_JIT_FUNCTION_ALWAYS_INLINE) | |
1635 | { | |
1636 | DECL_EXTERNAL (m_inner_fndecl) = 0; | |
1637 | TREE_PUBLIC (m_inner_fndecl) = 0; | |
1638 | } | |
1639 | ||
1640 | if (m_kind != GCC_JIT_FUNCTION_IMPORTED) | |
1641 | { | |
1642 | /* Seem to need this in gimple-low.c: */ | |
1643 | gcc_assert (m_inner_block); | |
1644 | DECL_INITIAL (m_inner_fndecl) = m_inner_block; | |
1645 | ||
1646 | /* how to add to function? the following appears to be how to | |
1647 | set the body of a m_inner_fndecl: */ | |
1648 | DECL_SAVED_TREE(m_inner_fndecl) = m_inner_bind_expr; | |
1649 | ||
1650 | /* Ensure that locals appear in the debuginfo. */ | |
1651 | BLOCK_VARS (m_inner_block) = BIND_EXPR_VARS (m_inner_bind_expr); | |
1652 | ||
1653 | //debug_tree (m_inner_fndecl); | |
1654 | ||
1655 | /* Convert to gimple: */ | |
1656 | //printf("about to gimplify_function_tree\n"); | |
1657 | gimplify_function_tree (m_inner_fndecl); | |
1658 | //printf("finished gimplify_function_tree\n"); | |
1659 | ||
1660 | current_function_decl = m_inner_fndecl; | |
1661 | if (m_ctxt->get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_INITIAL_GIMPLE)) | |
1662 | dump_function_to_file (m_inner_fndecl, stderr, TDF_VOPS|TDF_MEMSYMS|TDF_LINENO); | |
1663 | //debug_tree (m_inner_fndecl); | |
1664 | ||
1665 | //printf("about to add to cgraph\n"); | |
1666 | /* Add to cgraph: */ | |
1667 | cgraph_node::finalize_function (m_inner_fndecl, false); | |
1668 | /* This can trigger a collection, so we need to have all of | |
1669 | the funcs as roots. */ | |
1670 | ||
1671 | current_function_decl = NULL; | |
1672 | } | |
1673 | } | |
1674 | ||
b957b2e0 DM |
1675 | /* Don't leak vec's internal buffer (in non-GC heap) when we are |
1676 | GC-ed. */ | |
1677 | ||
1678 | void | |
1679 | playback::block::finalizer () | |
1680 | { | |
1681 | m_stmts.release (); | |
1682 | } | |
1683 | ||
35485da9 DM |
1684 | /* Add an eval of the rvalue to the function's statement list. */ |
1685 | ||
1686 | void | |
1687 | playback::block:: | |
1688 | add_eval (location *loc, | |
1689 | rvalue *rvalue) | |
1690 | { | |
1691 | gcc_assert (rvalue); | |
1692 | ||
1693 | if (loc) | |
1694 | set_tree_location (rvalue->as_tree (), loc); | |
1695 | ||
1696 | add_stmt (rvalue->as_tree ()); | |
1697 | } | |
1698 | ||
1699 | /* Add an assignment to the function's statement list. */ | |
1700 | ||
1701 | void | |
1702 | playback::block:: | |
1703 | add_assignment (location *loc, | |
1704 | lvalue *lvalue, | |
1705 | rvalue *rvalue) | |
1706 | { | |
1707 | gcc_assert (lvalue); | |
1708 | gcc_assert (rvalue); | |
1709 | ||
1710 | tree t_lvalue = lvalue->as_tree (); | |
1711 | tree t_rvalue = rvalue->as_tree (); | |
1712 | if (TREE_TYPE (t_rvalue) != TREE_TYPE (t_lvalue)) | |
1713 | { | |
1714 | t_rvalue = build1 (CONVERT_EXPR, | |
c168eab9 UD |
1715 | TREE_TYPE (t_lvalue), |
1716 | t_rvalue); | |
35485da9 DM |
1717 | if (loc) |
1718 | set_tree_location (t_rvalue, loc); | |
1719 | } | |
1720 | ||
1721 | tree stmt = | |
1722 | build2 (MODIFY_EXPR, TREE_TYPE (t_lvalue), | |
1723 | t_lvalue, t_rvalue); | |
1724 | if (loc) | |
1725 | set_tree_location (stmt, loc); | |
1726 | add_stmt (stmt); | |
1727 | } | |
1728 | ||
1729 | /* Add a comment to the function's statement list. | |
1730 | For now this is done by adding a dummy label. */ | |
1731 | ||
1732 | void | |
1733 | playback::block:: | |
1734 | add_comment (location *loc, | |
1735 | const char *text) | |
1736 | { | |
1737 | /* Wrap the text in C-style comment delimiters. */ | |
1738 | size_t sz = | |
1739 | (3 /* opening delim */ | |
1740 | + strlen (text) | |
1741 | + 3 /* closing delim */ | |
1742 | + 1 /* terminator */); | |
1743 | char *wrapped = (char *)ggc_internal_alloc (sz); | |
1744 | snprintf (wrapped, sz, "/* %s */", text); | |
1745 | ||
1746 | /* For now we simply implement this by adding a dummy label with a name | |
1747 | containing the given text. */ | |
1748 | tree identifier = get_identifier (wrapped); | |
1749 | tree label_decl = build_decl (UNKNOWN_LOCATION, LABEL_DECL, | |
1750 | identifier, void_type_node); | |
1751 | DECL_CONTEXT (label_decl) = m_func->as_fndecl (); | |
1752 | ||
1753 | tree label_expr = build1 (LABEL_EXPR, void_type_node, label_decl); | |
1754 | if (loc) | |
1755 | set_tree_location (label_expr, loc); | |
1756 | add_stmt (label_expr); | |
1757 | } | |
1758 | ||
1759 | /* Add a conditional jump statement to the function's statement list. */ | |
1760 | ||
1761 | void | |
1762 | playback::block:: | |
1763 | add_conditional (location *loc, | |
1764 | rvalue *boolval, | |
1765 | block *on_true, | |
1766 | block *on_false) | |
1767 | { | |
1768 | gcc_assert (boolval); | |
1769 | gcc_assert (on_true); | |
1770 | gcc_assert (on_false); | |
1771 | ||
1772 | /* COND_EXPR wants statement lists for the true/false operands, but we | |
1773 | want labels. | |
1774 | Shim it by creating jumps to the labels */ | |
1775 | tree true_jump = build1 (GOTO_EXPR, void_type_node, | |
1776 | on_true->as_label_decl ()); | |
1777 | if (loc) | |
1778 | set_tree_location (true_jump, loc); | |
1779 | ||
1780 | tree false_jump = build1 (GOTO_EXPR, void_type_node, | |
1781 | on_false->as_label_decl ()); | |
1782 | if (loc) | |
1783 | set_tree_location (false_jump, loc); | |
1784 | ||
1785 | tree stmt = | |
1786 | build3 (COND_EXPR, void_type_node, boolval->as_tree (), | |
1787 | true_jump, false_jump); | |
1788 | if (loc) | |
1789 | set_tree_location (stmt, loc); | |
1790 | add_stmt (stmt); | |
1791 | } | |
1792 | ||
1793 | /* Add an unconditional jump statement to the function's statement list. */ | |
1794 | ||
1795 | void | |
1796 | playback::block:: | |
1797 | add_jump (location *loc, | |
1798 | block *target) | |
1799 | { | |
1800 | gcc_assert (target); | |
1801 | ||
1802 | // see c_finish_loop | |
1803 | //tree top = build1 (LABEL_EXPR, void_type_node, NULL_TREE); | |
1804 | //add_stmt (top); | |
1805 | ||
1806 | //tree stmt = build_and_jump (&LABEL_EXPR_LABEL (target->label_)); | |
1807 | TREE_USED (target->as_label_decl ()) = 1; | |
1808 | tree stmt = build1 (GOTO_EXPR, void_type_node, target->as_label_decl ()); | |
1809 | if (loc) | |
1810 | set_tree_location (stmt, loc); | |
1811 | add_stmt (stmt); | |
1812 | ||
1813 | /* | |
1814 | from c-typeck.c: | |
1815 | tree | |
1816 | c_finish_goto_label (location_t loc, tree label) | |
1817 | { | |
1818 | tree decl = lookup_label_for_goto (loc, label); | |
1819 | if (!decl) | |
1820 | return NULL_TREE; | |
1821 | TREE_USED (decl) = 1; | |
1822 | { | |
1823 | tree t = build1 (GOTO_EXPR, void_type_node, decl); | |
1824 | SET_EXPR_LOCATION (t, loc); | |
1825 | return add_stmt (t); | |
1826 | } | |
1827 | } | |
1828 | */ | |
1829 | ||
1830 | } | |
1831 | ||
1832 | /* Add a return statement to the function's statement list. */ | |
1833 | ||
1834 | void | |
1835 | playback::block:: | |
1836 | add_return (location *loc, | |
1837 | rvalue *rvalue) | |
1838 | { | |
1839 | tree modify_retval = NULL; | |
1840 | tree return_type = m_func->get_return_type_as_tree (); | |
1841 | if (rvalue) | |
1842 | { | |
1843 | tree t_lvalue = DECL_RESULT (m_func->as_fndecl ()); | |
1844 | tree t_rvalue = rvalue->as_tree (); | |
1845 | if (TREE_TYPE (t_rvalue) != TREE_TYPE (t_lvalue)) | |
1846 | t_rvalue = build1 (CONVERT_EXPR, | |
1847 | TREE_TYPE (t_lvalue), | |
1848 | t_rvalue); | |
1849 | modify_retval = build2 (MODIFY_EXPR, return_type, | |
1850 | t_lvalue, t_rvalue); | |
1851 | if (loc) | |
1852 | set_tree_location (modify_retval, loc); | |
1853 | } | |
1854 | tree return_stmt = build1 (RETURN_EXPR, return_type, | |
1855 | modify_retval); | |
1856 | if (loc) | |
1857 | set_tree_location (return_stmt, loc); | |
1858 | ||
1859 | add_stmt (return_stmt); | |
1860 | } | |
1861 | ||
ec5d0088 DM |
1862 | /* Helper function for playback::block::add_switch. |
1863 | Construct a case label for the given range, followed by a goto stmt | |
1864 | to the given block, appending them to stmt list *ptr_t_switch_body. */ | |
1865 | ||
1866 | static void | |
1867 | add_case (tree *ptr_t_switch_body, | |
1868 | tree t_low_value, | |
1869 | tree t_high_value, | |
1870 | playback::block *dest_block) | |
1871 | { | |
1872 | tree t_label = create_artificial_label (UNKNOWN_LOCATION); | |
1873 | DECL_CONTEXT (t_label) = dest_block->get_function ()->as_fndecl (); | |
1874 | ||
1875 | tree t_case_label = | |
1876 | build_case_label (t_low_value, t_high_value, t_label); | |
1877 | append_to_statement_list (t_case_label, ptr_t_switch_body); | |
1878 | ||
1879 | tree t_goto_stmt = | |
1880 | build1 (GOTO_EXPR, void_type_node, dest_block->as_label_decl ()); | |
1881 | append_to_statement_list (t_goto_stmt, ptr_t_switch_body); | |
1882 | } | |
1883 | ||
1884 | /* Add a switch statement to the function's statement list. | |
1885 | ||
9e851845 | 1886 | We create a switch body, and populate it with case labels, each |
ec5d0088 DM |
1887 | followed by a goto to the desired block. */ |
1888 | ||
1889 | void | |
1890 | playback::block:: | |
1891 | add_switch (location *loc, | |
1892 | rvalue *expr, | |
1893 | block *default_block, | |
1894 | const auto_vec <case_> *cases) | |
1895 | { | |
1896 | /* Compare with: | |
1897 | - c/c-typeck.c: c_start_case | |
1898 | - c-family/c-common.c:c_add_case_label | |
1899 | - java/expr.c:expand_java_switch and expand_java_add_case | |
1900 | We've already rejected overlaps and duplicates in | |
1901 | libgccjit.c:case_range_validator::validate. */ | |
1902 | ||
1903 | tree t_expr = expr->as_tree (); | |
1904 | tree t_type = TREE_TYPE (t_expr); | |
1905 | ||
1906 | tree t_switch_body = alloc_stmt_list (); | |
1907 | ||
1908 | int i; | |
1909 | case_ *c; | |
1910 | FOR_EACH_VEC_ELT (*cases, i, c) | |
1911 | { | |
1912 | tree t_low_value = c->m_min_value->as_tree (); | |
1913 | tree t_high_value = c->m_max_value->as_tree (); | |
9e851845 | 1914 | add_case (&t_switch_body, t_low_value, t_high_value, c->m_dest_block); |
ec5d0088 DM |
1915 | } |
1916 | /* Default label. */ | |
9e851845 | 1917 | add_case (&t_switch_body, NULL_TREE, NULL_TREE, default_block); |
ec5d0088 | 1918 | |
9e851845 | 1919 | tree switch_stmt = build2 (SWITCH_EXPR, t_type, t_expr, t_switch_body); |
ec5d0088 DM |
1920 | if (loc) |
1921 | set_tree_location (switch_stmt, loc); | |
1922 | add_stmt (switch_stmt); | |
1923 | } | |
1924 | ||
421d0d0f DM |
1925 | /* Convert OPERANDS to a tree-based chain suitable for creating an |
1926 | extended asm stmt. | |
1927 | Compare with c_parser_asm_operands. */ | |
1928 | ||
1929 | static tree | |
1930 | build_operand_chain (const auto_vec <playback::asm_operand> *operands) | |
1931 | { | |
1932 | tree result = NULL_TREE; | |
1933 | unsigned i; | |
1934 | playback::asm_operand *asm_op; | |
1935 | FOR_EACH_VEC_ELT (*operands, i, asm_op) | |
1936 | { | |
1937 | tree name = build_string (asm_op->m_asm_symbolic_name); | |
1938 | tree str = build_string (asm_op->m_constraint); | |
1939 | tree value = asm_op->m_expr; | |
1940 | result = chainon (result, | |
1941 | build_tree_list (build_tree_list (name, str), | |
1942 | value)); | |
1943 | } | |
1944 | return result; | |
1945 | } | |
1946 | ||
1947 | /* Convert CLOBBERS to a tree-based list suitable for creating an | |
1948 | extended asm stmt. | |
1949 | Compare with c_parser_asm_clobbers. */ | |
1950 | ||
1951 | static tree | |
1952 | build_clobbers (const auto_vec <const char *> *clobbers) | |
1953 | { | |
1954 | tree list = NULL_TREE; | |
1955 | unsigned i; | |
1956 | const char *clobber; | |
1957 | FOR_EACH_VEC_ELT (*clobbers, i, clobber) | |
1958 | { | |
1959 | tree str = build_string (clobber); | |
1960 | list = tree_cons (NULL_TREE, str, list); | |
1961 | } | |
1962 | return list; | |
1963 | } | |
1964 | ||
1965 | /* Convert BLOCKS to a tree-based list suitable for creating an | |
1966 | extended asm stmt. | |
1967 | Compare with c_parser_asm_goto_operands. */ | |
1968 | ||
1969 | static tree | |
1970 | build_goto_operands (const auto_vec <playback::block *> *blocks) | |
1971 | { | |
1972 | tree list = NULL_TREE; | |
1973 | unsigned i; | |
1974 | playback::block *b; | |
1975 | FOR_EACH_VEC_ELT (*blocks, i, b) | |
1976 | { | |
1977 | tree label = b->as_label_decl (); | |
1978 | tree name = build_string (IDENTIFIER_POINTER (DECL_NAME (label))); | |
1979 | TREE_USED (label) = 1; | |
1980 | list = tree_cons (name, label, list); | |
1981 | } | |
1982 | return nreverse (list); | |
1983 | } | |
1984 | ||
1985 | /* Add an extended asm statement to this block. | |
1986 | ||
1987 | Compare with c_parser_asm_statement (in c/c-parser.c) | |
1988 | and build_asm_expr (in c/c-typeck.c). */ | |
1989 | ||
1990 | void | |
1991 | playback::block::add_extended_asm (location *loc, | |
1992 | const char *asm_template, | |
1993 | bool is_volatile, | |
1994 | bool is_inline, | |
1995 | const auto_vec <asm_operand> *outputs, | |
1996 | const auto_vec <asm_operand> *inputs, | |
1997 | const auto_vec <const char *> *clobbers, | |
1998 | const auto_vec <block *> *goto_blocks) | |
1999 | { | |
2000 | tree t_string = build_string (asm_template); | |
2001 | tree t_outputs = build_operand_chain (outputs); | |
2002 | tree t_inputs = build_operand_chain (inputs); | |
2003 | tree t_clobbers = build_clobbers (clobbers); | |
2004 | tree t_labels = build_goto_operands (goto_blocks); | |
2005 | t_string | |
2006 | = resolve_asm_operand_names (t_string, t_outputs, t_inputs, t_labels); | |
2007 | tree asm_stmt | |
2008 | = build5 (ASM_EXPR, void_type_node, | |
2009 | t_string, t_outputs, t_inputs, t_clobbers, t_labels); | |
2010 | ||
2011 | /* asm statements without outputs, including simple ones, are treated | |
2012 | as volatile. */ | |
2013 | ASM_VOLATILE_P (asm_stmt) = (outputs->length () == 0); | |
2014 | ASM_INPUT_P (asm_stmt) = 0; /* extended asm stmts are not "simple". */ | |
2015 | ASM_INLINE_P (asm_stmt) = is_inline; | |
2016 | if (is_volatile) | |
2017 | ASM_VOLATILE_P (asm_stmt) = 1; | |
2018 | if (loc) | |
2019 | set_tree_location (asm_stmt, loc); | |
2020 | add_stmt (asm_stmt); | |
2021 | } | |
2022 | ||
35485da9 DM |
2023 | /* Constructor for gcc::jit::playback::block. */ |
2024 | ||
2025 | playback::block:: | |
2026 | block (function *func, | |
2027 | const char *name) | |
2028 | : m_func (func), | |
2029 | m_stmts () | |
2030 | { | |
2031 | tree identifier; | |
2032 | ||
2033 | gcc_assert (func); | |
2034 | // name can be NULL | |
2035 | if (name) | |
2036 | identifier = get_identifier (name); | |
2037 | else | |
2038 | identifier = NULL; | |
2039 | m_label_decl = build_decl (UNKNOWN_LOCATION, LABEL_DECL, | |
2040 | identifier, void_type_node); | |
2041 | DECL_CONTEXT (m_label_decl) = func->as_fndecl (); | |
2042 | m_label_expr = NULL; | |
2043 | } | |
2044 | ||
35485da9 DM |
2045 | /* Compile a playback::context: |
2046 | ||
2047 | - Use the context's options to cconstruct command-line options, and | |
2048 | call into the rest of GCC (toplev::main). | |
fdce7209 DM |
2049 | - Assuming it succeeds, we have a .s file. |
2050 | - We then run the "postprocess" vfunc: | |
35485da9 | 2051 | |
fdce7209 DM |
2052 | (A) In-memory compile ("gcc_jit_context_compile") |
2053 | ||
2054 | For an in-memory compile we have the playback::compile_to_memory | |
2055 | subclass; "postprocess" will convert the .s file to a .so DSO, | |
2056 | and load it in memory (via dlopen), wrapping the result up as | |
2057 | a jit::result and returning it. | |
2058 | ||
2059 | (B) Compile to file ("gcc_jit_context_compile_to_file") | |
2060 | ||
2061 | When compiling to a file, we have the playback::compile_to_file | |
2062 | subclass; "postprocess" will either copy the .s file to the | |
2063 | destination (for GCC_JIT_OUTPUT_KIND_ASSEMBLER), or invoke | |
2064 | the driver to convert it as necessary, copying the result. */ | |
2065 | ||
2066 | void | |
35485da9 DM |
2067 | playback::context:: |
2068 | compile () | |
2069 | { | |
eb4c16eb DM |
2070 | JIT_LOG_SCOPE (get_logger ()); |
2071 | ||
35485da9 | 2072 | const char *ctxt_progname; |
35485da9 | 2073 | |
d1e5f2c7 DM |
2074 | int keep_intermediates = |
2075 | get_bool_option (GCC_JIT_BOOL_OPTION_KEEP_INTERMEDIATES); | |
35485da9 | 2076 | |
d2286af3 | 2077 | m_tempdir = new tempdir (get_logger (), keep_intermediates); |
d1e5f2c7 | 2078 | if (!m_tempdir->create ()) |
fdce7209 | 2079 | return; |
35485da9 DM |
2080 | |
2081 | /* Call into the rest of gcc. | |
2082 | For now, we have to assemble command-line options to pass into | |
2083 | toplev::main, so that they can be parsed. */ | |
2084 | ||
2085 | /* Pass in user-provided program name as argv0, if any, so that it | |
2086 | makes it into GCC's "progname" global, used in various diagnostics. */ | |
2087 | ctxt_progname = get_str_option (GCC_JIT_STR_OPTION_PROGNAME); | |
35485da9 | 2088 | |
c985705a DM |
2089 | if (!ctxt_progname) |
2090 | ctxt_progname = "libgccjit.so"; | |
2091 | ||
463366a0 DM |
2092 | auto_vec <recording::requested_dump> requested_dumps; |
2093 | m_recording_ctxt->get_all_requested_dumps (&requested_dumps); | |
2094 | ||
2cb844ce DM |
2095 | /* Acquire the JIT mutex and set "this" as the active playback ctxt. */ |
2096 | acquire_mutex (); | |
2097 | ||
3de37a5d | 2098 | auto_string_vec fake_args; |
463366a0 | 2099 | make_fake_args (&fake_args, ctxt_progname, &requested_dumps); |
8f50ee3c | 2100 | if (errors_occurred ()) |
2cb844ce DM |
2101 | { |
2102 | release_mutex (); | |
2103 | return; | |
2104 | } | |
38771e4e | 2105 | |
463366a0 | 2106 | /* This runs the compiler. */ |
afed3459 | 2107 | toplev toplev (get_timer (), /* external_timer */ |
6fc2d0f3 | 2108 | false); /* init_signals */ |
eb4c16eb DM |
2109 | enter_scope ("toplev::main"); |
2110 | if (get_logger ()) | |
2111 | for (unsigned i = 0; i < fake_args.length (); i++) | |
2112 | get_logger ()->log ("argv[%i]: %s", i, fake_args[i]); | |
8f50ee3c DM |
2113 | toplev.main (fake_args.length (), |
2114 | const_cast <char **> (fake_args.address ())); | |
eb4c16eb | 2115 | exit_scope ("toplev::main"); |
463366a0 DM |
2116 | |
2117 | /* Extracting dumps makes use of the gcc::dump_manager, hence we | |
2118 | need to do it between toplev::main (which creates the dump manager) | |
2119 | and toplev::finalize (which deletes it). */ | |
2120 | extract_any_requested_dumps (&requested_dumps); | |
2121 | ||
2122 | /* Clean up the compiler. */ | |
eb4c16eb | 2123 | enter_scope ("toplev::finalize"); |
35485da9 | 2124 | toplev.finalize (); |
eb4c16eb | 2125 | exit_scope ("toplev::finalize"); |
35485da9 | 2126 | |
38771e4e DM |
2127 | /* Ideally we would release the jit mutex here, but we can't yet since |
2128 | followup activities use timevars, which are global state. */ | |
35485da9 DM |
2129 | |
2130 | if (errors_occurred ()) | |
38771e4e DM |
2131 | { |
2132 | release_mutex (); | |
fdce7209 | 2133 | return; |
38771e4e | 2134 | } |
35485da9 DM |
2135 | |
2136 | if (get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_GENERATED_CODE)) | |
c6760a13 | 2137 | dump_generated_code (); |
35485da9 | 2138 | |
fdce7209 DM |
2139 | /* We now have a .s file. |
2140 | ||
2141 | Run any postprocessing steps. This will either convert the .s file to | |
2142 | a .so DSO, and load it in memory (playback::compile_to_memory), or | |
2143 | convert the .s file to the requested output format, and copy it to a | |
2144 | given file (playback::compile_to_file). */ | |
2145 | postprocess (ctxt_progname); | |
2146 | ||
2147 | release_mutex (); | |
2148 | } | |
2149 | ||
2150 | /* Implementation of class gcc::jit::playback::compile_to_memory, | |
2151 | a subclass of gcc::jit::playback::context. */ | |
2152 | ||
2153 | /* playback::compile_to_memory's trivial constructor. */ | |
2154 | ||
2155 | playback::compile_to_memory::compile_to_memory (recording::context *ctxt) : | |
2156 | playback::context (ctxt), | |
2157 | m_result (NULL) | |
2158 | { | |
2159 | JIT_LOG_SCOPE (get_logger ()); | |
2160 | } | |
2161 | ||
2162 | /* Implementation of the playback::context::process vfunc for compiling | |
2163 | to memory. | |
2164 | ||
2165 | Convert the .s file to a .so DSO, and load it in memory (via dlopen), | |
2166 | wrapping the result up as a jit::result and returning it. */ | |
2167 | ||
2168 | void | |
2169 | playback::compile_to_memory::postprocess (const char *ctxt_progname) | |
2170 | { | |
2171 | JIT_LOG_SCOPE (get_logger ()); | |
c6760a13 DM |
2172 | convert_to_dso (ctxt_progname); |
2173 | if (errors_occurred ()) | |
fdce7209 DM |
2174 | return; |
2175 | m_result = dlopen_built_dso (); | |
2176 | } | |
2177 | ||
2178 | /* Implementation of class gcc::jit::playback::compile_to_file, | |
2179 | a subclass of gcc::jit::playback::context. */ | |
2180 | ||
2181 | /* playback::compile_to_file's trivial constructor. */ | |
2182 | ||
2183 | playback::compile_to_file::compile_to_file (recording::context *ctxt, | |
2184 | enum gcc_jit_output_kind output_kind, | |
2185 | const char *output_path) : | |
2186 | playback::context (ctxt), | |
2187 | m_output_kind (output_kind), | |
2188 | m_output_path (output_path) | |
2189 | { | |
2190 | JIT_LOG_SCOPE (get_logger ()); | |
2191 | } | |
2192 | ||
2193 | /* Implementation of the playback::context::process vfunc for compiling | |
2194 | to a file. | |
2195 | ||
2196 | Either copy the .s file to the given destination (for | |
2197 | GCC_JIT_OUTPUT_KIND_ASSEMBLER), or invoke the driver to convert it | |
2198 | as necessary, copying the result. */ | |
2199 | ||
2200 | void | |
2201 | playback::compile_to_file::postprocess (const char *ctxt_progname) | |
2202 | { | |
2203 | JIT_LOG_SCOPE (get_logger ()); | |
2204 | ||
2205 | /* The driver takes different actions based on the filename, so | |
2206 | we provide a filename with an appropriate suffix for the | |
2207 | output kind, and then copy it up to the user-provided path, | |
2208 | rather than directly compiling it to the requested output path. */ | |
2209 | ||
2210 | switch (m_output_kind) | |
38771e4e | 2211 | { |
fdce7209 DM |
2212 | default: |
2213 | gcc_unreachable (); | |
2214 | ||
2215 | case GCC_JIT_OUTPUT_KIND_ASSEMBLER: | |
2216 | copy_file (get_tempdir ()->get_path_s_file (), | |
2217 | m_output_path); | |
199501ea | 2218 | /* The .s file is automatically unlinked by tempdir::~tempdir. */ |
fdce7209 DM |
2219 | break; |
2220 | ||
2221 | case GCC_JIT_OUTPUT_KIND_OBJECT_FILE: | |
2222 | { | |
2223 | char *tmp_o_path = ::concat (get_tempdir ()->get_path (), | |
2224 | "/fake.o", | |
2225 | NULL); | |
2226 | invoke_driver (ctxt_progname, | |
2227 | get_tempdir ()->get_path_s_file (), | |
2228 | tmp_o_path, | |
2229 | TV_ASSEMBLE, | |
2230 | false, /* bool shared, */ | |
2231 | false);/* bool run_linker */ | |
2232 | if (!errors_occurred ()) | |
199501ea DM |
2233 | { |
2234 | copy_file (tmp_o_path, | |
2235 | m_output_path); | |
2236 | get_tempdir ()->add_temp_file (tmp_o_path); | |
2237 | } | |
2238 | else | |
2239 | free (tmp_o_path); | |
fdce7209 DM |
2240 | } |
2241 | break; | |
2242 | ||
2243 | case GCC_JIT_OUTPUT_KIND_DYNAMIC_LIBRARY: | |
2244 | invoke_driver (ctxt_progname, | |
2245 | get_tempdir ()->get_path_s_file (), | |
2246 | get_tempdir ()->get_path_so_file (), | |
2247 | TV_ASSEMBLE, | |
2248 | true, /* bool shared, */ | |
2249 | true);/* bool run_linker */ | |
2250 | if (!errors_occurred ()) | |
2251 | copy_file (get_tempdir ()->get_path_so_file (), | |
2252 | m_output_path); | |
199501ea | 2253 | /* The .so file is automatically unlinked by tempdir::~tempdir. */ |
fdce7209 DM |
2254 | break; |
2255 | ||
2256 | case GCC_JIT_OUTPUT_KIND_EXECUTABLE: | |
2257 | { | |
2258 | char *tmp_exe_path = ::concat (get_tempdir ()->get_path (), | |
2259 | "/fake.exe", | |
2260 | NULL); | |
2261 | invoke_driver (ctxt_progname, | |
2262 | get_tempdir ()->get_path_s_file (), | |
2263 | tmp_exe_path, | |
2264 | TV_ASSEMBLE, | |
2265 | false, /* bool shared, */ | |
2266 | true);/* bool run_linker */ | |
2267 | if (!errors_occurred ()) | |
199501ea DM |
2268 | { |
2269 | copy_file (tmp_exe_path, | |
2270 | m_output_path); | |
2271 | get_tempdir ()->add_temp_file (tmp_exe_path); | |
2272 | } | |
2273 | else | |
2274 | free (tmp_exe_path); | |
fdce7209 DM |
2275 | } |
2276 | break; | |
2277 | ||
38771e4e | 2278 | } |
35485da9 | 2279 | |
fdce7209 | 2280 | } |
35485da9 | 2281 | |
fdce7209 DM |
2282 | /* Copy SRC_PATH to DST_PATH, preserving permission bits (in particular, |
2283 | the "executable" bits). | |
2284 | ||
2285 | Any errors that occur are reported on the context and hence count as | |
2286 | a failure of the compile. | |
2287 | ||
2288 | We can't in general hardlink or use "rename" from the tempdir since | |
2289 | it might be on a different filesystem to the destination. For example, | |
2290 | I get EXDEV: "Invalid cross-device link". */ | |
2291 | ||
2292 | void | |
2293 | playback::compile_to_file::copy_file (const char *src_path, | |
2294 | const char *dst_path) | |
2295 | { | |
2296 | JIT_LOG_SCOPE (get_logger ()); | |
2297 | if (get_logger ()) | |
2298 | { | |
2299 | get_logger ()->log ("src_path: %s", src_path); | |
2300 | get_logger ()->log ("dst_path: %s", dst_path); | |
2301 | } | |
2302 | ||
2303 | FILE *f_in = NULL; | |
2304 | FILE *f_out = NULL; | |
2305 | size_t total_sz_in = 0; | |
2306 | size_t total_sz_out = 0; | |
2307 | char buf[4096]; | |
2308 | size_t sz_in; | |
2309 | struct stat stat_buf; | |
2310 | ||
2311 | f_in = fopen (src_path, "rb"); | |
2312 | if (!f_in) | |
2313 | { | |
2314 | add_error (NULL, | |
2315 | "unable to open %s for reading: %s", | |
2316 | src_path, | |
2317 | xstrerror (errno)); | |
2318 | return; | |
2319 | } | |
38771e4e | 2320 | |
fdce7209 DM |
2321 | /* Use stat on the filedescriptor to get the mode, |
2322 | so that we can copy it over (in particular, the | |
2323 | "executable" bits). */ | |
01512446 | 2324 | if (fstat (fileno (f_in), &stat_buf) == -1) |
fdce7209 DM |
2325 | { |
2326 | add_error (NULL, | |
2327 | "unable to fstat %s: %s", | |
2328 | src_path, | |
2329 | xstrerror (errno)); | |
2330 | fclose (f_in); | |
2331 | return; | |
2332 | } | |
2333 | ||
2334 | f_out = fopen (dst_path, "wb"); | |
2335 | if (!f_out) | |
2336 | { | |
2337 | add_error (NULL, | |
2338 | "unable to open %s for writing: %s", | |
2339 | dst_path, | |
2340 | xstrerror (errno)); | |
2341 | fclose (f_in); | |
2342 | return; | |
2343 | } | |
2344 | ||
2345 | while ( (sz_in = fread (buf, 1, sizeof (buf), f_in)) ) | |
2346 | { | |
2347 | total_sz_in += sz_in; | |
2348 | size_t sz_out_remaining = sz_in; | |
2349 | size_t sz_out_so_far = 0; | |
2350 | while (sz_out_remaining) | |
2351 | { | |
2352 | size_t sz_out = fwrite (buf + sz_out_so_far, | |
2353 | 1, | |
2354 | sz_out_remaining, | |
2355 | f_out); | |
2356 | gcc_assert (sz_out <= sz_out_remaining); | |
2357 | if (!sz_out) | |
2358 | { | |
2359 | add_error (NULL, | |
2360 | "error writing to %s: %s", | |
2361 | dst_path, | |
2362 | xstrerror (errno)); | |
2363 | fclose (f_in); | |
2364 | fclose (f_out); | |
2365 | return; | |
2366 | } | |
2367 | total_sz_out += sz_out; | |
2368 | sz_out_so_far += sz_out; | |
2369 | sz_out_remaining -= sz_out; | |
2370 | } | |
2371 | gcc_assert (sz_out_so_far == sz_in); | |
2372 | } | |
2373 | ||
2374 | if (!feof (f_in)) | |
2375 | add_error (NULL, | |
2376 | "error reading from %s: %s", | |
2377 | src_path, | |
2378 | xstrerror (errno)); | |
2379 | ||
2380 | fclose (f_in); | |
2381 | ||
2382 | gcc_assert (total_sz_in == total_sz_out); | |
2383 | if (get_logger ()) | |
c83027f3 | 2384 | get_logger ()->log ("total bytes copied: %zu", total_sz_out); |
fdce7209 | 2385 | |
c83027f3 NB |
2386 | /* fchmod does not exist in Windows. */ |
2387 | #ifndef _WIN32 | |
fdce7209 DM |
2388 | /* Set the permissions of the copy to those of the original file, |
2389 | in particular the "executable" bits. */ | |
01512446 | 2390 | if (fchmod (fileno (f_out), stat_buf.st_mode) == -1) |
fdce7209 DM |
2391 | add_error (NULL, |
2392 | "error setting mode of %s: %s", | |
2393 | dst_path, | |
2394 | xstrerror (errno)); | |
c83027f3 | 2395 | #endif |
fdce7209 DM |
2396 | |
2397 | fclose (f_out); | |
35485da9 DM |
2398 | } |
2399 | ||
8f50ee3c DM |
2400 | /* Helper functions for gcc::jit::playback::context::compile. */ |
2401 | ||
38771e4e DM |
2402 | /* This mutex guards gcc::jit::recording::context::compile, so that only |
2403 | one thread can be accessing the bulk of GCC's state at once. */ | |
2404 | ||
2405 | static pthread_mutex_t jit_mutex = PTHREAD_MUTEX_INITIALIZER; | |
2406 | ||
2407 | /* Acquire jit_mutex and set "this" as the active playback ctxt. */ | |
2408 | ||
2409 | void | |
2410 | playback::context::acquire_mutex () | |
2411 | { | |
afed3459 DM |
2412 | auto_timevar tv (get_timer (), TV_JIT_ACQUIRING_MUTEX); |
2413 | ||
38771e4e | 2414 | /* Acquire the big GCC mutex. */ |
eb4c16eb | 2415 | JIT_LOG_SCOPE (get_logger ()); |
38771e4e | 2416 | pthread_mutex_lock (&jit_mutex); |
01512446 | 2417 | gcc_assert (active_playback_ctxt == NULL); |
38771e4e DM |
2418 | active_playback_ctxt = this; |
2419 | } | |
2420 | ||
2421 | /* Release jit_mutex and clear the active playback ctxt. */ | |
2422 | ||
2423 | void | |
2424 | playback::context::release_mutex () | |
2425 | { | |
2426 | /* Release the big GCC mutex. */ | |
eb4c16eb | 2427 | JIT_LOG_SCOPE (get_logger ()); |
38771e4e DM |
2428 | gcc_assert (active_playback_ctxt == this); |
2429 | active_playback_ctxt = NULL; | |
2430 | pthread_mutex_unlock (&jit_mutex); | |
2431 | } | |
2432 | ||
2cb844ce DM |
2433 | /* Callback used by gcc::jit::playback::context::make_fake_args when |
2434 | invoking driver_get_configure_time_options. | |
2435 | Populate a vec <char * > with the configure-time options. */ | |
2436 | ||
2437 | static void | |
2438 | append_arg_from_driver (const char *option, void *user_data) | |
2439 | { | |
2440 | gcc_assert (option); | |
2441 | gcc_assert (user_data); | |
2442 | vec <char *> *argvec = static_cast <vec <char *> *> (user_data); | |
2443 | argvec->safe_push (concat ("-", option, NULL)); | |
2444 | } | |
2445 | ||
8f50ee3c DM |
2446 | /* Build a fake argv for toplev::main from the options set |
2447 | by the user on the context . */ | |
2448 | ||
2449 | void | |
2450 | playback::context:: | |
463366a0 DM |
2451 | make_fake_args (vec <char *> *argvec, |
2452 | const char *ctxt_progname, | |
2453 | vec <recording::requested_dump> *requested_dumps) | |
8f50ee3c | 2454 | { |
eb4c16eb DM |
2455 | JIT_LOG_SCOPE (get_logger ()); |
2456 | ||
463366a0 DM |
2457 | #define ADD_ARG(arg) argvec->safe_push (xstrdup (arg)) |
2458 | #define ADD_ARG_TAKE_OWNERSHIP(arg) argvec->safe_push (arg) | |
8f50ee3c DM |
2459 | |
2460 | ADD_ARG (ctxt_progname); | |
d1e5f2c7 | 2461 | ADD_ARG (get_path_c_file ()); |
8f50ee3c DM |
2462 | ADD_ARG ("-fPIC"); |
2463 | ||
2464 | /* Handle int options: */ | |
2465 | switch (get_int_option (GCC_JIT_INT_OPTION_OPTIMIZATION_LEVEL)) | |
2466 | { | |
2467 | default: | |
2468 | add_error (NULL, | |
2469 | "unrecognized optimization level: %i", | |
2470 | get_int_option (GCC_JIT_INT_OPTION_OPTIMIZATION_LEVEL)); | |
2471 | return; | |
2472 | ||
2473 | case 0: | |
2474 | ADD_ARG ("-O0"); | |
2475 | break; | |
2476 | ||
2477 | case 1: | |
2478 | ADD_ARG ("-O1"); | |
2479 | break; | |
2480 | ||
2481 | case 2: | |
2482 | ADD_ARG ("-O2"); | |
2483 | break; | |
2484 | ||
2485 | case 3: | |
2486 | ADD_ARG ("-O3"); | |
2487 | break; | |
2488 | } | |
2489 | /* What about -Os? */ | |
2490 | ||
2491 | /* Handle bool options: */ | |
2492 | if (get_bool_option (GCC_JIT_BOOL_OPTION_DEBUGINFO)) | |
2493 | ADD_ARG ("-g"); | |
2494 | ||
2495 | /* Suppress timing (and other) info. */ | |
2496 | if (!get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_SUMMARY)) | |
2497 | { | |
2498 | ADD_ARG ("-quiet"); | |
2499 | quiet_flag = 1; | |
2500 | } | |
2501 | ||
2502 | /* Aggressively garbage-collect, to shake out bugs: */ | |
2503 | if (get_bool_option (GCC_JIT_BOOL_OPTION_SELFCHECK_GC)) | |
2504 | { | |
56e04525 DM |
2505 | ADD_ARG ("--param=ggc-min-expand=0"); |
2506 | ADD_ARG ("--param=ggc-min-heapsize=0"); | |
8f50ee3c DM |
2507 | } |
2508 | ||
2509 | if (get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_EVERYTHING)) | |
2510 | { | |
2511 | ADD_ARG ("-fdump-tree-all"); | |
2512 | ADD_ARG ("-fdump-rtl-all"); | |
2513 | ADD_ARG ("-fdump-ipa-all"); | |
2514 | } | |
463366a0 DM |
2515 | |
2516 | /* Add "-fdump-" options for any calls to | |
2517 | gcc_jit_context_enable_dump. */ | |
2518 | { | |
2519 | int i; | |
2520 | recording::requested_dump *d; | |
2521 | FOR_EACH_VEC_ELT (*requested_dumps, i, d) | |
2522 | { | |
2523 | char *arg = concat ("-fdump-", d->m_dumpname, NULL); | |
2524 | ADD_ARG_TAKE_OWNERSHIP (arg); | |
2525 | } | |
2526 | } | |
2527 | ||
2cb844ce DM |
2528 | /* PR jit/64810: Add any target-specific default options |
2529 | from OPTION_DEFAULT_SPECS, normally provided by the driver | |
2530 | in the non-jit case. | |
2531 | ||
2532 | The target-specific code can define OPTION_DEFAULT_SPECS: | |
2533 | default command options in the form of spec macros for the | |
2534 | driver to expand (). | |
2535 | ||
2536 | For cc1 etc, the driver processes OPTION_DEFAULT_SPECS and, | |
2537 | if not overriden, injects the defaults as extra arguments to | |
2538 | cc1 etc. | |
2539 | For the jit case, we need to add these arguments here. The | |
2540 | input format (using the specs language) means that we have to run | |
2541 | part of the driver code here (driver_get_configure_time_options). | |
2542 | ||
2543 | To avoid running the spec-expansion code every time, we just do | |
2544 | it the first time (via a function-static flag), saving the result | |
2545 | into a function-static vec. | |
2546 | This flag and vec are global state (i.e. per-process). | |
2547 | They are guarded by the jit mutex. */ | |
2548 | { | |
2549 | static bool have_configure_time_options = false; | |
2550 | static vec <char *> configure_time_options; | |
2551 | ||
2552 | if (have_configure_time_options) | |
2553 | log ("reusing cached configure-time options"); | |
2554 | else | |
2555 | { | |
2556 | have_configure_time_options = true; | |
2557 | log ("getting configure-time options from driver"); | |
2558 | driver_get_configure_time_options (append_arg_from_driver, | |
2559 | &configure_time_options); | |
2560 | } | |
2561 | ||
2562 | int i; | |
2563 | char *opt; | |
2564 | ||
2565 | if (get_logger ()) | |
2566 | FOR_EACH_VEC_ELT (configure_time_options, i, opt) | |
2567 | log ("configure_time_options[%i]: %s", i, opt); | |
2568 | ||
2569 | /* configure_time_options should now contain the expanded options | |
2570 | from OPTION_DEFAULT_SPECS (if any). */ | |
2571 | FOR_EACH_VEC_ELT (configure_time_options, i, opt) | |
2572 | { | |
2573 | gcc_assert (opt); | |
2574 | gcc_assert (opt[0] == '-'); | |
2575 | ADD_ARG (opt); | |
2576 | } | |
2577 | } | |
2578 | ||
afed3459 DM |
2579 | if (get_timer ()) |
2580 | ADD_ARG ("-ftime-report"); | |
2581 | ||
fa22c20d DM |
2582 | /* Add any user-provided extra options, starting with any from |
2583 | parent contexts. */ | |
2584 | m_recording_ctxt->append_command_line_options (argvec); | |
2585 | ||
8f50ee3c | 2586 | #undef ADD_ARG |
463366a0 DM |
2587 | #undef ADD_ARG_TAKE_OWNERSHIP |
2588 | } | |
2589 | ||
2590 | /* The second half of the implementation of gcc_jit_context_enable_dump. | |
2591 | Iterate through the requested dumps, reading the underlying files | |
2592 | into heap-allocated buffers, writing pointers to the buffers into | |
2593 | the char ** pointers provided by client code. | |
2594 | Client code is responsible for calling free on the results. */ | |
2595 | ||
2596 | void | |
2597 | playback::context:: | |
2598 | extract_any_requested_dumps (vec <recording::requested_dump> *requested_dumps) | |
2599 | { | |
eb4c16eb DM |
2600 | JIT_LOG_SCOPE (get_logger ()); |
2601 | ||
463366a0 DM |
2602 | int i; |
2603 | recording::requested_dump *d; | |
2604 | FOR_EACH_VEC_ELT (*requested_dumps, i, d) | |
2605 | { | |
2606 | dump_file_info *dfi; | |
2607 | char *filename; | |
2608 | char *content; | |
2609 | ||
2610 | dfi = g->get_dumps ()->get_dump_file_info_by_switch (d->m_dumpname); | |
2611 | if (!dfi) | |
2612 | { | |
2613 | add_error (NULL, "unrecognized dump: %s", d->m_dumpname); | |
2614 | continue; | |
2615 | } | |
2616 | ||
2617 | filename = g->get_dumps ()->get_dump_file_name (dfi); | |
2618 | content = read_dump_file (filename); | |
2619 | *(d->m_out_ptr) = content; | |
199501ea | 2620 | m_tempdir->add_temp_file (filename); |
463366a0 DM |
2621 | } |
2622 | } | |
2623 | ||
2624 | /* Helper function for playback::context::extract_any_requested_dumps | |
2625 | (itself for use in implementation of gcc_jit_context_enable_dump). | |
2626 | ||
2627 | Attempt to read the complete file at the given path, returning the | |
2628 | bytes found there as a buffer. | |
2629 | The caller is responsible for calling free on the result. | |
2630 | Errors will be reported on the context, and lead to NULL being | |
2631 | returned; an out-of-memory error will terminate the process. */ | |
2632 | ||
2633 | char * | |
2634 | playback::context::read_dump_file (const char *path) | |
2635 | { | |
2636 | char *result = NULL; | |
2637 | size_t total_sz = 0; | |
2638 | char buf[4096]; | |
2639 | size_t sz; | |
2640 | FILE *f_in; | |
2641 | ||
2642 | f_in = fopen (path, "r"); | |
2643 | if (!f_in) | |
2644 | { | |
2645 | add_error (NULL, "unable to open %s for reading", path); | |
2646 | return NULL; | |
2647 | } | |
2648 | ||
2649 | while ( (sz = fread (buf, 1, sizeof (buf), f_in)) ) | |
2650 | { | |
2651 | size_t old_total_sz = total_sz; | |
2652 | total_sz += sz; | |
2653 | result = reinterpret_cast <char *> (xrealloc (result, total_sz + 1)); | |
2654 | memcpy (result + old_total_sz, buf, sz); | |
2655 | } | |
2656 | ||
2657 | if (!feof (f_in)) | |
2658 | { | |
2659 | add_error (NULL, "error reading from %s", path); | |
2660 | free (result); | |
1c35cc2c | 2661 | fclose (f_in); |
463366a0 DM |
2662 | return NULL; |
2663 | } | |
2664 | ||
2665 | fclose (f_in); | |
2666 | ||
2667 | if (result) | |
2668 | { | |
2669 | result[total_sz] = '\0'; | |
2670 | return result; | |
2671 | } | |
2672 | else | |
2673 | return xstrdup (""); | |
8f50ee3c DM |
2674 | } |
2675 | ||
c6760a13 DM |
2676 | /* Part of playback::context::compile (). |
2677 | ||
2678 | We have a .s file; we want a .so file. | |
2679 | We could reuse parts of gcc/gcc.c to do this. | |
2680 | For now, just use the driver binary from the install, as | |
2681 | named in gcc-driver-name.h | |
2682 | e.g. "x86_64-unknown-linux-gnu-gcc-5.0.0". */ | |
2683 | ||
2684 | void | |
2685 | playback::context:: | |
2686 | convert_to_dso (const char *ctxt_progname) | |
fdce7209 DM |
2687 | { |
2688 | JIT_LOG_SCOPE (get_logger ()); | |
2689 | ||
2690 | invoke_driver (ctxt_progname, | |
2691 | m_tempdir->get_path_s_file (), | |
2692 | m_tempdir->get_path_so_file (), | |
2693 | TV_ASSEMBLE, | |
2694 | true, /* bool shared, */ | |
2695 | true);/* bool run_linker */ | |
2696 | } | |
2697 | ||
9376dd63 DM |
2698 | static const char * const gcc_driver_name = GCC_DRIVER_NAME; |
2699 | ||
fdce7209 DM |
2700 | void |
2701 | playback::context:: | |
2702 | invoke_driver (const char *ctxt_progname, | |
2703 | const char *input_file, | |
2704 | const char *output_file, | |
2705 | timevar_id_t tv_id, | |
2706 | bool shared, | |
2707 | bool run_linker) | |
c6760a13 | 2708 | { |
eb4c16eb | 2709 | JIT_LOG_SCOPE (get_logger ()); |
9376dd63 DM |
2710 | |
2711 | bool embedded_driver | |
2712 | = !get_inner_bool_option (INNER_BOOL_OPTION_USE_EXTERNAL_DRIVER); | |
2713 | ||
c6760a13 DM |
2714 | /* Currently this lumps together both assembling and linking into |
2715 | TV_ASSEMBLE. */ | |
afed3459 | 2716 | auto_timevar assemble_timevar (get_timer (), tv_id); |
3de37a5d | 2717 | auto_string_vec argvec; |
eb3982c1 | 2718 | #define ADD_ARG(arg) argvec.safe_push (xstrdup (arg)) |
c6760a13 | 2719 | |
c168eab9 | 2720 | ADD_ARG (gcc_driver_name); |
fdce7209 | 2721 | |
eb3982c1 DM |
2722 | add_multilib_driver_arguments (&argvec); |
2723 | ||
fdce7209 DM |
2724 | if (shared) |
2725 | ADD_ARG ("-shared"); | |
2726 | ||
2727 | if (!run_linker) | |
2728 | ADD_ARG ("-c"); | |
2729 | ||
2730 | ADD_ARG (input_file); | |
c168eab9 | 2731 | ADD_ARG ("-o"); |
fdce7209 | 2732 | ADD_ARG (output_file); |
c6760a13 DM |
2733 | |
2734 | /* Don't use the linker plugin. | |
2735 | If running with just a "make" and not a "make install", then we'd | |
2736 | run into | |
2737 | "fatal error: -fuse-linker-plugin, but liblto_plugin.so not found" | |
2738 | libto_plugin is a .la at build time, with it becoming installed with | |
2739 | ".so" suffix: i.e. it doesn't exist with a .so suffix until install | |
2740 | time. */ | |
c168eab9 | 2741 | ADD_ARG ("-fno-use-linker-plugin"); |
c6760a13 | 2742 | |
baf3fbad DM |
2743 | #if defined (DARWIN_X86) || defined (DARWIN_PPC) |
2744 | /* OS X's linker defaults to treating undefined symbols as errors. | |
2745 | If the context has any imported functions or globals they will be | |
2746 | undefined until the .so is dynamically-linked into the process. | |
2747 | Ensure that the driver passes in "-undefined dynamic_lookup" to the | |
2748 | linker. */ | |
2749 | ADD_ARG ("-Wl,-undefined,dynamic_lookup"); | |
2750 | #endif | |
2751 | ||
9376dd63 DM |
2752 | if (0) |
2753 | ADD_ARG ("-v"); | |
2754 | ||
216090cc AC |
2755 | /* Add any user-provided driver extra options. */ |
2756 | ||
2757 | m_recording_ctxt->append_driver_options (&argvec); | |
2758 | ||
9376dd63 | 2759 | #undef ADD_ARG |
c6760a13 DM |
2760 | |
2761 | /* pex_one's error-handling requires pname to be non-NULL. */ | |
2762 | gcc_assert (ctxt_progname); | |
2763 | ||
eb4c16eb DM |
2764 | if (get_logger ()) |
2765 | for (unsigned i = 0; i < argvec.length (); i++) | |
2766 | get_logger ()->log ("argv[%i]: %s", i, argvec[i]); | |
2767 | ||
9376dd63 DM |
2768 | if (embedded_driver) |
2769 | invoke_embedded_driver (&argvec); | |
2770 | else | |
2771 | invoke_external_driver (ctxt_progname, &argvec); | |
2772 | } | |
2773 | ||
2774 | void | |
2775 | playback::context:: | |
2776 | invoke_embedded_driver (const vec <char *> *argvec) | |
2777 | { | |
2778 | JIT_LOG_SCOPE (get_logger ()); | |
2779 | driver d (true, /* can_finalize */ | |
2780 | false); /* debug */ | |
2781 | int result = d.main (argvec->length (), | |
2782 | const_cast <char **> (argvec->address ())); | |
2783 | d.finalize (); | |
2784 | if (result) | |
2785 | add_error (NULL, "error invoking gcc driver"); | |
2786 | } | |
2787 | ||
2788 | void | |
2789 | playback::context:: | |
2790 | invoke_external_driver (const char *ctxt_progname, | |
2791 | vec <char *> *argvec) | |
2792 | { | |
2793 | JIT_LOG_SCOPE (get_logger ()); | |
2794 | const char *errmsg; | |
2795 | int exit_status = 0; | |
2796 | int err = 0; | |
2797 | ||
2798 | /* pex argv arrays are NULL-terminated. */ | |
2799 | argvec->safe_push (NULL); | |
2800 | ||
c6760a13 DM |
2801 | errmsg = pex_one (PEX_SEARCH, /* int flags, */ |
2802 | gcc_driver_name, | |
9376dd63 | 2803 | const_cast <char *const *> (argvec->address ()), |
c6760a13 DM |
2804 | ctxt_progname, /* const char *pname */ |
2805 | NULL, /* const char *outname */ | |
2806 | NULL, /* const char *errname */ | |
2807 | &exit_status, /* int *status */ | |
2808 | &err); /* int *err*/ | |
2809 | if (errmsg) | |
2810 | { | |
2811 | add_error (NULL, "error invoking gcc driver: %s", errmsg); | |
2812 | return; | |
2813 | } | |
2814 | ||
2815 | /* pex_one can return a NULL errmsg when the executable wasn't | |
2816 | found (or doesn't exist), so trap these cases also. */ | |
2817 | if (exit_status || err) | |
2818 | { | |
2819 | add_error (NULL, | |
2820 | "error invoking gcc driver: exit_status: %i err: %i", | |
2821 | exit_status, err); | |
2822 | add_error (NULL, | |
2823 | "whilst attempting to run a driver named: %s", | |
2824 | gcc_driver_name); | |
2825 | add_error (NULL, | |
2826 | "PATH was: %s", | |
2827 | getenv ("PATH")); | |
2828 | return; | |
2829 | } | |
2830 | } | |
2831 | ||
eb3982c1 DM |
2832 | /* Extract the target-specific MULTILIB_DEFAULTS to |
2833 | multilib_defaults_raw for use by | |
2834 | playback::context::add_multilib_driver_arguments (). */ | |
2835 | ||
2836 | #ifndef MULTILIB_DEFAULTS | |
2837 | #define MULTILIB_DEFAULTS { "" } | |
2838 | #endif | |
2839 | ||
2840 | static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; | |
2841 | ||
2842 | /* Helper function for playback::context::invoke_driver (). | |
2843 | ||
2844 | 32-bit and 64-bit multilib peer builds of libgccjit.so may share | |
2845 | a driver binary. We need to pass in options to the shared driver | |
2846 | to get the appropriate assembler/linker options for this multilib | |
2847 | peer. */ | |
2848 | ||
2849 | void | |
2850 | playback::context:: | |
2851 | add_multilib_driver_arguments (vec <char *> *argvec) | |
2852 | { | |
2853 | JIT_LOG_SCOPE (get_logger ()); | |
2854 | ||
2855 | /* Add copies of the arguments in multilib_defaults_raw to argvec, | |
2856 | prepending each with a "-". */ | |
2857 | for (size_t i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++) | |
2858 | if (multilib_defaults_raw[i][0]) | |
2859 | argvec->safe_push (concat ("-", multilib_defaults_raw[i], NULL)); | |
2860 | } | |
2861 | ||
38f4f641 DM |
2862 | /* Dynamically-link the built DSO file into this process, using dlopen. |
2863 | Wrap it up within a jit::result *, and return that. | |
2864 | Return NULL if any errors occur, reporting them on this context. */ | |
2865 | ||
2866 | result * | |
2867 | playback::context:: | |
2868 | dlopen_built_dso () | |
2869 | { | |
eb4c16eb | 2870 | JIT_LOG_SCOPE (get_logger ()); |
afed3459 | 2871 | auto_timevar load_timevar (get_timer (), TV_LOAD); |
c83027f3 | 2872 | result::handle handle = NULL; |
38f4f641 DM |
2873 | result *result_obj = NULL; |
2874 | ||
c83027f3 NB |
2875 | #ifdef _WIN32 |
2876 | /* Clear any existing error. */ | |
2877 | SetLastError(0); | |
2878 | ||
2879 | handle = LoadLibrary(m_tempdir->get_path_so_file ()); | |
2880 | if (GetLastError() != 0) { | |
2881 | print_last_error(); | |
2882 | } | |
2883 | #else | |
2884 | const char *error = NULL; | |
38f4f641 DM |
2885 | /* Clear any existing error. */ |
2886 | dlerror (); | |
2887 | ||
d1e5f2c7 DM |
2888 | handle = dlopen (m_tempdir->get_path_so_file (), |
2889 | RTLD_NOW | RTLD_LOCAL); | |
38f4f641 DM |
2890 | if ((error = dlerror()) != NULL) { |
2891 | add_error (NULL, "%s", error); | |
2892 | } | |
c83027f3 NB |
2893 | #endif |
2894 | ||
38f4f641 | 2895 | if (handle) |
d2286af3 DM |
2896 | { |
2897 | /* We've successfully dlopened the result; create a | |
2898 | jit::result object to wrap it. | |
2899 | ||
2900 | We're done with the tempdir for now, but if the user | |
2901 | has requested debugging, the user's debugger might not | |
2902 | be capable of dealing with the .so file being unlinked | |
2903 | immediately, so keep it around until after the result | |
2904 | is released. We do this by handing over ownership of | |
2905 | the jit::tempdir to the result. See PR jit/64206. */ | |
2906 | tempdir *handover_tempdir; | |
2907 | if (get_bool_option (GCC_JIT_BOOL_OPTION_DEBUGINFO)) | |
2908 | { | |
2909 | handover_tempdir = m_tempdir; | |
2910 | m_tempdir = NULL; | |
2911 | /* The tempdir will eventually be cleaned up in the | |
2912 | jit::result's dtor. */ | |
2913 | log ("GCC_JIT_BOOL_OPTION_DEBUGINFO was set:" | |
2914 | " handing over tempdir to jit::result"); | |
2915 | } | |
2916 | else | |
2917 | { | |
2918 | handover_tempdir = NULL; | |
2919 | /* ... and retain ownership of m_tempdir so we clean it | |
2920 | up it the playback::context's dtor. */ | |
2921 | log ("GCC_JIT_BOOL_OPTION_DEBUGINFO was not set:" | |
2922 | " retaining ownership of tempdir"); | |
2923 | } | |
2924 | ||
2925 | result_obj = new result (get_logger (), handle, handover_tempdir); | |
2926 | } | |
38f4f641 DM |
2927 | else |
2928 | result_obj = NULL; | |
2929 | ||
2930 | return result_obj; | |
2931 | } | |
2932 | ||
35485da9 DM |
2933 | /* Top-level hook for playing back a recording context. |
2934 | ||
2935 | This plays back m_recording_ctxt, and, if no errors | |
2936 | occurred builds statement lists for and then postprocesses | |
2937 | every function in the result. */ | |
2938 | ||
2939 | void | |
2940 | playback::context:: | |
2941 | replay () | |
2942 | { | |
eb4c16eb | 2943 | JIT_LOG_SCOPE (get_logger ()); |
35485da9 DM |
2944 | |
2945 | m_const_char_ptr | |
2946 | = build_pointer_type (build_qualified_type (char_type_node, | |
2947 | TYPE_QUAL_CONST)); | |
2948 | ||
2949 | /* Replay the recorded events: */ | |
2950 | timevar_push (TV_JIT_REPLAY); | |
2951 | ||
2952 | m_recording_ctxt->replay_into (this); | |
2953 | ||
2954 | /* Clean away the temporary references from recording objects | |
2955 | to playback objects. We have to do this now since the | |
2956 | latter are GC-allocated, but the former don't mark these | |
2957 | refs. Hence we must stop using them before the GC can run. */ | |
2958 | m_recording_ctxt->disassociate_from_playback (); | |
2959 | ||
eeafb319 DM |
2960 | /* The builtins_manager, if any, is associated with the recording::context |
2961 | and might be reused for future compiles on other playback::contexts, | |
2962 | but its m_attributes array is not GTY-labeled and hence will become | |
2963 | nonsense if the GC runs. Purge this state. */ | |
2964 | builtins_manager *bm = get_builtins_manager (); | |
2965 | if (bm) | |
2966 | bm->finish_playback (); | |
2967 | ||
35485da9 DM |
2968 | timevar_pop (TV_JIT_REPLAY); |
2969 | ||
2970 | if (!errors_occurred ()) | |
2971 | { | |
2972 | int i; | |
2973 | function *func; | |
2974 | ||
2975 | /* No GC can happen yet; process the cached source locations. */ | |
2976 | handle_locations (); | |
2977 | ||
2978 | /* We've now created tree nodes for the stmts in the various blocks | |
2979 | in each function, but we haven't built each function's single stmt | |
2980 | list yet. Do so now. */ | |
2981 | FOR_EACH_VEC_ELT (m_functions, i, func) | |
2982 | func->build_stmt_list (); | |
2983 | ||
2984 | /* No GC can have happened yet. */ | |
2985 | ||
2986 | /* Postprocess the functions. This could trigger GC. */ | |
2987 | FOR_EACH_VEC_ELT (m_functions, i, func) | |
2988 | { | |
2989 | gcc_assert (func); | |
2990 | func->postprocess (); | |
2991 | } | |
2992 | } | |
2993 | } | |
2994 | ||
2995 | /* Dump the generated .s file to stderr. */ | |
2996 | ||
2997 | void | |
2998 | playback::context:: | |
2999 | dump_generated_code () | |
3000 | { | |
eb4c16eb | 3001 | JIT_LOG_SCOPE (get_logger ()); |
35485da9 DM |
3002 | char buf[4096]; |
3003 | size_t sz; | |
d1e5f2c7 | 3004 | FILE *f_in = fopen (get_path_s_file (), "r"); |
35485da9 DM |
3005 | if (!f_in) |
3006 | return; | |
3007 | ||
3008 | while ( (sz = fread (buf, 1, sizeof (buf), f_in)) ) | |
3009 | fwrite (buf, 1, sz, stderr); | |
3010 | ||
3011 | fclose (f_in); | |
3012 | } | |
3013 | ||
d1e5f2c7 DM |
3014 | /* Get the supposed path of the notional "fake.c" file within the |
3015 | tempdir. This file doesn't exist, but the rest of the compiler | |
3016 | needs a name. */ | |
3017 | ||
3018 | const char * | |
3019 | playback::context:: | |
3020 | get_path_c_file () const | |
3021 | { | |
3022 | return m_tempdir->get_path_c_file (); | |
3023 | } | |
3024 | ||
3025 | /* Get the path of the assembler output file "fake.s" file within the | |
3026 | tempdir. */ | |
3027 | ||
3028 | const char * | |
3029 | playback::context:: | |
3030 | get_path_s_file () const | |
3031 | { | |
3032 | return m_tempdir->get_path_s_file (); | |
3033 | } | |
3034 | ||
3035 | /* Get the path of the DSO object file "fake.so" file within the | |
3036 | tempdir. */ | |
3037 | ||
3038 | const char * | |
3039 | playback::context:: | |
3040 | get_path_so_file () const | |
3041 | { | |
3042 | return m_tempdir->get_path_so_file (); | |
3043 | } | |
3044 | ||
35485da9 DM |
3045 | /* qsort comparator for comparing pairs of playback::source_line *, |
3046 | ordering them by line number. */ | |
3047 | ||
3048 | static int | |
3049 | line_comparator (const void *lhs, const void *rhs) | |
3050 | { | |
3051 | const playback::source_line *line_lhs = \ | |
3052 | *static_cast<const playback::source_line * const*> (lhs); | |
3053 | const playback::source_line *line_rhs = \ | |
3054 | *static_cast<const playback::source_line * const*> (rhs); | |
3055 | return line_lhs->get_line_num () - line_rhs->get_line_num (); | |
3056 | } | |
3057 | ||
3058 | /* qsort comparator for comparing pairs of playback::location *, | |
3059 | ordering them by column number. */ | |
3060 | ||
3061 | static int | |
3062 | location_comparator (const void *lhs, const void *rhs) | |
3063 | { | |
3064 | const playback::location *loc_lhs = \ | |
3065 | *static_cast<const playback::location * const *> (lhs); | |
3066 | const playback::location *loc_rhs = \ | |
3067 | *static_cast<const playback::location * const *> (rhs); | |
3068 | return loc_lhs->get_column_num () - loc_rhs->get_column_num (); | |
3069 | } | |
3070 | ||
3071 | /* Our API allows locations to be created in arbitrary orders, but the | |
3072 | linemap API requires locations to be created in ascending order | |
3073 | as if we were tokenizing files. | |
3074 | ||
026c3cfd | 3075 | This hook sorts all of the locations that have been created, and |
35485da9 DM |
3076 | calls into the linemap API, creating linemap entries in sorted order |
3077 | for our locations. */ | |
3078 | ||
3079 | void | |
3080 | playback::context:: | |
3081 | handle_locations () | |
3082 | { | |
3083 | /* Create the source code locations, following the ordering rules | |
3084 | imposed by the linemap API. | |
3085 | ||
3086 | line_table is a global. */ | |
eb4c16eb | 3087 | JIT_LOG_SCOPE (get_logger ()); |
35485da9 DM |
3088 | int i; |
3089 | source_file *file; | |
3090 | ||
3091 | FOR_EACH_VEC_ELT (m_source_files, i, file) | |
3092 | { | |
3093 | linemap_add (line_table, LC_ENTER, false, file->get_filename (), 0); | |
3094 | ||
3095 | /* Sort lines by ascending line numbers. */ | |
3096 | file->m_source_lines.qsort (&line_comparator); | |
3097 | ||
3098 | int j; | |
3099 | source_line *line; | |
3100 | FOR_EACH_VEC_ELT (file->m_source_lines, j, line) | |
3101 | { | |
3102 | int k; | |
3103 | location *loc; | |
3104 | ||
3105 | /* Sort locations in line by ascending column numbers. */ | |
3106 | line->m_locations.qsort (&location_comparator); | |
3107 | ||
3108 | /* Determine maximum column within this line. */ | |
3109 | gcc_assert (line->m_locations.length () > 0); | |
3110 | location *final_column = | |
3111 | line->m_locations[line->m_locations.length () - 1]; | |
3112 | int max_col = final_column->get_column_num (); | |
3113 | ||
3114 | linemap_line_start (line_table, line->get_line_num (), max_col); | |
3115 | FOR_EACH_VEC_ELT (line->m_locations, k, loc) | |
3116 | { | |
3117 | loc->m_srcloc = \ | |
3118 | linemap_position_for_column (line_table, loc->get_column_num ()); | |
3119 | } | |
3120 | } | |
3121 | ||
3122 | linemap_add (line_table, LC_LEAVE, false, NULL, 0); | |
3123 | } | |
3124 | ||
3125 | /* line_table should now be populated; every playback::location should | |
3126 | now have an m_srcloc. */ | |
3127 | ||
3128 | /* Now assign them to tree nodes as appropriate. */ | |
3129 | std::pair<tree, location *> *cached_location; | |
3130 | ||
3131 | FOR_EACH_VEC_ELT (m_cached_locations, i, cached_location) | |
3132 | { | |
3133 | tree t = cached_location->first; | |
620e594b | 3134 | location_t srcloc = cached_location->second->m_srcloc; |
35485da9 DM |
3135 | |
3136 | /* This covers expressions: */ | |
3137 | if (CAN_HAVE_LOCATION_P (t)) | |
3138 | SET_EXPR_LOCATION (t, srcloc); | |
3139 | else if (CODE_CONTAINS_STRUCT(TREE_CODE(t), TS_DECL_MINIMAL)) | |
3140 | DECL_SOURCE_LOCATION (t) = srcloc; | |
3141 | else | |
3142 | { | |
3143 | /* Don't know how to set location on this node. */ | |
3144 | } | |
3145 | } | |
3146 | } | |
3147 | ||
3148 | /* We handle errors on a playback::context by adding them to the | |
3149 | corresponding recording::context. */ | |
3150 | ||
3151 | void | |
3152 | playback::context:: | |
3153 | add_error (location *loc, const char *fmt, ...) | |
3154 | { | |
3155 | va_list ap; | |
3156 | va_start (ap, fmt); | |
3157 | m_recording_ctxt->add_error_va (loc ? loc->get_recording_loc () : NULL, | |
3158 | fmt, ap); | |
3159 | va_end (ap); | |
3160 | } | |
3161 | ||
3162 | /* We handle errors on a playback::context by adding them to the | |
3163 | corresponding recording::context. */ | |
3164 | ||
3165 | void | |
3166 | playback::context:: | |
3167 | add_error_va (location *loc, const char *fmt, va_list ap) | |
3168 | { | |
3169 | m_recording_ctxt->add_error_va (loc ? loc->get_recording_loc () : NULL, | |
3170 | fmt, ap); | |
3171 | } | |
3172 | ||
6b5423a5 DM |
3173 | /* Report a diagnostic up to the jit context as an error, |
3174 | so that the compilation is treated as a failure. | |
3175 | For now, any kind of diagnostic is treated as an error by the jit | |
3176 | API. */ | |
3177 | ||
3178 | void | |
3179 | playback::context:: | |
3180 | add_diagnostic (struct diagnostic_context *diag_context, | |
3181 | struct diagnostic_info *diagnostic) | |
3182 | { | |
3183 | /* At this point the text has been formatted into the pretty-printer's | |
3184 | output buffer. */ | |
3185 | pretty_printer *pp = diag_context->printer; | |
3186 | const char *text = pp_formatted_text (pp); | |
3187 | ||
3188 | /* Get location information (if any) from the diagnostic. | |
3189 | The recording::context::add_error[_va] methods require a | |
3190 | recording::location. We can't lookup the playback::location | |
3191 | from the file/line/column since any playback location instances | |
3192 | may have been garbage-collected away by now, so instead we create | |
3193 | another recording::location directly. */ | |
3194 | location_t gcc_loc = diagnostic_location (diagnostic); | |
3195 | recording::location *rec_loc = NULL; | |
3196 | if (gcc_loc) | |
3197 | { | |
3198 | expanded_location exploc = expand_location (gcc_loc); | |
3199 | if (exploc.file) | |
3200 | rec_loc = m_recording_ctxt->new_location (exploc.file, | |
3201 | exploc.line, | |
3202 | exploc.column, | |
3203 | false); | |
3204 | } | |
3205 | ||
3206 | m_recording_ctxt->add_error (rec_loc, "%s", text); | |
3207 | pp_clear_output_area (pp); | |
3208 | } | |
3209 | ||
35485da9 DM |
3210 | /* Dealing with the linemap API. */ |
3211 | ||
3212 | /* Construct a playback::location for a recording::location, if it | |
3213 | doesn't exist already. */ | |
3214 | ||
3215 | playback::location * | |
3216 | playback::context:: | |
3217 | new_location (recording::location *rloc, | |
3218 | const char *filename, | |
3219 | int line, | |
3220 | int column) | |
3221 | { | |
3222 | /* Get the source_file for filename, creating if necessary. */ | |
3223 | source_file *src_file = get_source_file (filename); | |
3224 | /* Likewise for the line within the file. */ | |
3225 | source_line *src_line = src_file->get_source_line (line); | |
3226 | /* Likewise for the column within the line. */ | |
3227 | location *loc = src_line->get_location (rloc, column); | |
3228 | return loc; | |
3229 | } | |
3230 | ||
3231 | /* Deferred setting of the location for a given tree, by adding the | |
3232 | (tree, playback::location) pair to a list of deferred associations. | |
3233 | We will actually set the location on the tree later on once | |
620e594b | 3234 | the location_t for the playback::location exists. */ |
35485da9 DM |
3235 | |
3236 | void | |
3237 | playback::context:: | |
3238 | set_tree_location (tree t, location *loc) | |
3239 | { | |
3240 | gcc_assert (loc); | |
3241 | m_cached_locations.safe_push (std::make_pair (t, loc)); | |
3242 | } | |
3243 | ||
3244 | ||
3245 | /* Construct a playback::source_file for the given source | |
3246 | filename, if it doesn't exist already. */ | |
3247 | ||
3248 | playback::source_file * | |
3249 | playback::context:: | |
3250 | get_source_file (const char *filename) | |
3251 | { | |
3252 | /* Locate the file. | |
3253 | For simplicitly, this is currently a linear search. | |
3254 | Replace with a hash if this shows up in the profile. */ | |
3255 | int i; | |
3256 | source_file *file; | |
3257 | tree ident_filename = get_identifier (filename); | |
3258 | ||
3259 | FOR_EACH_VEC_ELT (m_source_files, i, file) | |
3260 | if (file->filename_as_tree () == ident_filename) | |
3261 | return file; | |
3262 | ||
3263 | /* Not found. */ | |
3264 | file = new source_file (ident_filename); | |
3265 | m_source_files.safe_push (file); | |
3266 | return file; | |
3267 | } | |
3268 | ||
3269 | /* Constructor for gcc::jit::playback::source_file. */ | |
3270 | ||
3271 | playback::source_file::source_file (tree filename) : | |
3272 | m_source_lines (), | |
3273 | m_filename (filename) | |
3274 | { | |
3275 | } | |
3276 | ||
b957b2e0 DM |
3277 | /* Don't leak vec's internal buffer (in non-GC heap) when we are |
3278 | GC-ed. */ | |
3279 | ||
3280 | void | |
3281 | playback::source_file::finalizer () | |
3282 | { | |
3283 | m_source_lines.release (); | |
3284 | } | |
3285 | ||
35485da9 DM |
3286 | /* Construct a playback::source_line for the given line |
3287 | within this source file, if one doesn't exist already. */ | |
3288 | ||
3289 | playback::source_line * | |
3290 | playback::source_file:: | |
3291 | get_source_line (int line_num) | |
3292 | { | |
3293 | /* Locate the line. | |
3294 | For simplicitly, this is currently a linear search. | |
3295 | Replace with a hash if this shows up in the profile. */ | |
3296 | int i; | |
3297 | source_line *line; | |
3298 | ||
3299 | FOR_EACH_VEC_ELT (m_source_lines, i, line) | |
3300 | if (line->get_line_num () == line_num) | |
3301 | return line; | |
3302 | ||
3303 | /* Not found. */ | |
3304 | line = new source_line (this, line_num); | |
3305 | m_source_lines.safe_push (line); | |
3306 | return line; | |
3307 | } | |
3308 | ||
3309 | /* Constructor for gcc::jit::playback::source_line. */ | |
3310 | ||
3311 | playback::source_line::source_line (source_file *file, int line_num) : | |
3312 | m_locations (), | |
3313 | m_source_file (file), | |
3314 | m_line_num (line_num) | |
3315 | { | |
3316 | } | |
b957b2e0 DM |
3317 | |
3318 | /* Don't leak vec's internal buffer (in non-GC heap) when we are | |
3319 | GC-ed. */ | |
3320 | ||
3321 | void | |
3322 | playback::source_line::finalizer () | |
3323 | { | |
3324 | m_locations.release (); | |
3325 | } | |
35485da9 DM |
3326 | |
3327 | /* Construct a playback::location for the given column | |
3328 | within this line of a specific source file, if one doesn't exist | |
3329 | already. */ | |
3330 | ||
3331 | playback::location * | |
3332 | playback::source_line:: | |
3333 | get_location (recording::location *rloc, int column_num) | |
3334 | { | |
3335 | int i; | |
3336 | location *loc; | |
3337 | ||
3338 | /* Another linear search that probably should be a hash table. */ | |
3339 | FOR_EACH_VEC_ELT (m_locations, i, loc) | |
3340 | if (loc->get_column_num () == column_num) | |
3341 | return loc; | |
3342 | ||
3343 | /* Not found. */ | |
3344 | loc = new location (rloc, this, column_num); | |
3345 | m_locations.safe_push (loc); | |
3346 | return loc; | |
3347 | } | |
3348 | ||
3349 | /* Constructor for gcc::jit::playback::location. */ | |
3350 | ||
3351 | playback::location::location (recording::location *loc, | |
3352 | source_line *line, | |
3353 | int column_num) : | |
3354 | m_srcloc (UNKNOWN_LOCATION), | |
3355 | m_recording_loc (loc), | |
3356 | m_line (line), | |
3357 | m_column_num(column_num) | |
3358 | { | |
3359 | } | |
3360 | ||
3361 | /* The active gcc::jit::playback::context instance. This is a singleton, | |
3362 | guarded by jit_mutex. */ | |
3363 | ||
3364 | playback::context *active_playback_ctxt; | |
3365 | ||
3366 | } // namespace gcc::jit | |
3367 | ||
3368 | } // namespace gcc |