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35485da9 | 1 | /* Internals of libgccjit: classes for playing back recorded API calls. |
cbe34bb5 | 2 | Copyright (C) 2013-2017 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" |
2cb844ce | 39 | #include "gcc.h" |
6b5423a5 | 40 | #include "diagnostic.h" |
35485da9 | 41 | |
1c652ccb IB |
42 | #include <pthread.h> |
43 | ||
35485da9 | 44 | #include "jit-playback.h" |
56dea35f | 45 | #include "jit-result.h" |
eeafb319 | 46 | #include "jit-builtins.h" |
d1e5f2c7 | 47 | #include "jit-tempdir.h" |
35485da9 DM |
48 | |
49 | ||
50 | /* gcc::jit::playback::context::build_cast uses the convert.h API, | |
51 | which in turn requires the frontend to provide a "convert" | |
52 | function, apparently as a fallback. | |
53 | ||
54 | Hence we provide this dummy one, with the requirement that any casts | |
55 | are handled before reaching this. */ | |
56 | extern tree convert (tree type, tree expr); | |
57 | ||
58 | tree | |
59 | convert (tree dst_type, tree expr) | |
60 | { | |
61 | gcc_assert (gcc::jit::active_playback_ctxt); | |
62 | gcc::jit::active_playback_ctxt->add_error (NULL, "unhandled conversion"); | |
63 | fprintf (stderr, "input expression:\n"); | |
64 | debug_tree (expr); | |
65 | fprintf (stderr, "requested type:\n"); | |
66 | debug_tree (dst_type); | |
67 | return error_mark_node; | |
68 | } | |
69 | ||
70 | namespace gcc { | |
71 | namespace jit { | |
72 | ||
73 | /********************************************************************** | |
74 | Playback. | |
75 | **********************************************************************/ | |
76 | ||
77 | /* The constructor for gcc::jit::playback::context. */ | |
78 | ||
79 | playback::context::context (recording::context *ctxt) | |
eb4c16eb DM |
80 | : log_user (ctxt->get_logger ()), |
81 | m_recording_ctxt (ctxt), | |
d1e5f2c7 | 82 | m_tempdir (NULL), |
35485da9 DM |
83 | m_char_array_type_node (NULL), |
84 | m_const_char_ptr (NULL) | |
85 | { | |
eb4c16eb | 86 | JIT_LOG_SCOPE (get_logger ()); |
35485da9 | 87 | m_functions.create (0); |
791cfef8 | 88 | m_globals.create (0); |
35485da9 DM |
89 | m_source_files.create (0); |
90 | m_cached_locations.create (0); | |
91 | } | |
92 | ||
93 | /* The destructor for gcc::jit::playback::context. */ | |
94 | ||
95 | playback::context::~context () | |
96 | { | |
eb4c16eb | 97 | JIT_LOG_SCOPE (get_logger ()); |
d2286af3 DM |
98 | |
99 | /* Normally the playback::context is responsible for cleaning up the | |
100 | tempdir (including "fake.so" within the filesystem). | |
101 | ||
102 | In the normal case, clean it up now. | |
103 | ||
104 | However m_tempdir can be NULL if the context has handed over | |
105 | responsibility for the tempdir cleanup to the jit::result object, so | |
106 | that the cleanup can be delayed (see PR jit/64206). If that's the | |
107 | case this "delete NULL;" is a no-op. */ | |
108 | delete m_tempdir; | |
109 | ||
35485da9 DM |
110 | m_functions.release (); |
111 | } | |
112 | ||
113 | /* A playback::context can reference GC-managed pointers. Mark them | |
114 | ("by hand", rather than by gengtype). | |
115 | ||
116 | This is called on the active playback context (if any) by the | |
117 | my_ggc_walker hook in the jit_root_table in dummy-frontend.c. */ | |
118 | ||
119 | void | |
120 | playback::context:: | |
121 | gt_ggc_mx () | |
122 | { | |
123 | int i; | |
124 | function *func; | |
125 | FOR_EACH_VEC_ELT (m_functions, i, func) | |
126 | { | |
127 | if (ggc_test_and_set_mark (func)) | |
128 | func->gt_ggc_mx (); | |
129 | } | |
130 | } | |
131 | ||
132 | /* Given an enum gcc_jit_types value, get a "tree" type. */ | |
133 | ||
134 | static tree | |
135 | get_tree_node_for_type (enum gcc_jit_types type_) | |
136 | { | |
137 | switch (type_) | |
138 | { | |
139 | case GCC_JIT_TYPE_VOID: | |
140 | return void_type_node; | |
141 | ||
142 | case GCC_JIT_TYPE_VOID_PTR: | |
143 | return ptr_type_node; | |
144 | ||
145 | case GCC_JIT_TYPE_BOOL: | |
146 | return boolean_type_node; | |
147 | ||
148 | case GCC_JIT_TYPE_CHAR: | |
149 | return char_type_node; | |
150 | case GCC_JIT_TYPE_SIGNED_CHAR: | |
151 | return signed_char_type_node; | |
152 | case GCC_JIT_TYPE_UNSIGNED_CHAR: | |
153 | return unsigned_char_type_node; | |
154 | ||
155 | case GCC_JIT_TYPE_SHORT: | |
156 | return short_integer_type_node; | |
157 | case GCC_JIT_TYPE_UNSIGNED_SHORT: | |
158 | return short_unsigned_type_node; | |
159 | ||
160 | case GCC_JIT_TYPE_CONST_CHAR_PTR: | |
161 | { | |
162 | tree const_char = build_qualified_type (char_type_node, | |
163 | TYPE_QUAL_CONST); | |
164 | return build_pointer_type (const_char); | |
165 | } | |
166 | ||
167 | case GCC_JIT_TYPE_INT: | |
168 | return integer_type_node; | |
169 | case GCC_JIT_TYPE_UNSIGNED_INT: | |
170 | return unsigned_type_node; | |
171 | ||
172 | case GCC_JIT_TYPE_LONG: | |
173 | return long_integer_type_node; | |
174 | case GCC_JIT_TYPE_UNSIGNED_LONG: | |
175 | return long_unsigned_type_node; | |
176 | ||
177 | case GCC_JIT_TYPE_LONG_LONG: | |
178 | return long_long_integer_type_node; | |
179 | case GCC_JIT_TYPE_UNSIGNED_LONG_LONG: | |
180 | return long_long_unsigned_type_node; | |
181 | ||
182 | case GCC_JIT_TYPE_FLOAT: | |
183 | return float_type_node; | |
184 | case GCC_JIT_TYPE_DOUBLE: | |
185 | return double_type_node; | |
186 | case GCC_JIT_TYPE_LONG_DOUBLE: | |
187 | return long_double_type_node; | |
188 | ||
189 | case GCC_JIT_TYPE_SIZE_T: | |
190 | return size_type_node; | |
191 | ||
192 | case GCC_JIT_TYPE_FILE_PTR: | |
193 | return fileptr_type_node; | |
eeafb319 DM |
194 | |
195 | case GCC_JIT_TYPE_COMPLEX_FLOAT: | |
196 | return complex_float_type_node; | |
197 | case GCC_JIT_TYPE_COMPLEX_DOUBLE: | |
198 | return complex_double_type_node; | |
199 | case GCC_JIT_TYPE_COMPLEX_LONG_DOUBLE: | |
200 | return complex_long_double_type_node; | |
35485da9 DM |
201 | } |
202 | ||
203 | return NULL; | |
204 | } | |
205 | ||
206 | /* Construct a playback::type instance (wrapping a tree) for the given | |
207 | enum value. */ | |
208 | ||
209 | playback::type * | |
210 | playback::context:: | |
211 | get_type (enum gcc_jit_types type_) | |
212 | { | |
213 | tree type_node = get_tree_node_for_type (type_); | |
214 | if (NULL == type_node) | |
215 | { | |
216 | add_error (NULL, | |
217 | "unrecognized (enum gcc_jit_types) value: %i", type_); | |
218 | return NULL; | |
219 | } | |
220 | ||
221 | return new type (type_node); | |
222 | } | |
223 | ||
224 | /* Construct a playback::type instance (wrapping a tree) for the given | |
225 | array type. */ | |
226 | ||
227 | playback::type * | |
228 | playback::context:: | |
229 | new_array_type (playback::location *loc, | |
230 | playback::type *element_type, | |
231 | int num_elements) | |
232 | { | |
233 | gcc_assert (element_type); | |
234 | ||
235 | tree t = build_array_type_nelts (element_type->as_tree (), | |
236 | num_elements); | |
237 | layout_type (t); | |
238 | ||
239 | if (loc) | |
240 | set_tree_location (t, loc); | |
241 | ||
242 | return new type (t); | |
243 | } | |
244 | ||
245 | /* Construct a playback::field instance (wrapping a tree). */ | |
246 | ||
247 | playback::field * | |
248 | playback::context:: | |
249 | new_field (location *loc, | |
250 | type *type, | |
251 | const char *name) | |
252 | { | |
253 | gcc_assert (type); | |
254 | gcc_assert (name); | |
255 | ||
256 | /* compare with c/c-decl.c:grokfield and grokdeclarator. */ | |
257 | tree decl = build_decl (UNKNOWN_LOCATION, FIELD_DECL, | |
258 | get_identifier (name), type->as_tree ()); | |
259 | ||
260 | if (loc) | |
261 | set_tree_location (decl, loc); | |
262 | ||
263 | return new field (decl); | |
264 | } | |
265 | ||
266 | /* Construct a playback::compound_type instance (wrapping a tree). */ | |
267 | ||
268 | playback::compound_type * | |
269 | playback::context:: | |
270 | new_compound_type (location *loc, | |
271 | const char *name, | |
272 | bool is_struct) /* else is union */ | |
273 | { | |
274 | gcc_assert (name); | |
275 | ||
276 | /* Compare with c/c-decl.c: start_struct. */ | |
277 | ||
278 | tree t = make_node (is_struct ? RECORD_TYPE : UNION_TYPE); | |
279 | TYPE_NAME (t) = get_identifier (name); | |
280 | TYPE_SIZE (t) = 0; | |
281 | ||
282 | if (loc) | |
283 | set_tree_location (t, loc); | |
284 | ||
285 | return new compound_type (t); | |
286 | } | |
287 | ||
288 | void | |
b957b2e0 | 289 | playback::compound_type::set_fields (const auto_vec<playback::field *> *fields) |
35485da9 DM |
290 | { |
291 | /* Compare with c/c-decl.c: finish_struct. */ | |
292 | tree t = as_tree (); | |
293 | ||
294 | tree fieldlist = NULL; | |
b957b2e0 | 295 | for (unsigned i = 0; i < fields->length (); i++) |
35485da9 | 296 | { |
b957b2e0 | 297 | field *f = (*fields)[i]; |
35485da9 DM |
298 | DECL_CONTEXT (f->as_tree ()) = t; |
299 | fieldlist = chainon (f->as_tree (), fieldlist); | |
300 | } | |
301 | fieldlist = nreverse (fieldlist); | |
302 | TYPE_FIELDS (t) = fieldlist; | |
303 | ||
304 | layout_type (t); | |
305 | } | |
306 | ||
307 | /* Construct a playback::type instance (wrapping a tree) for a function | |
308 | type. */ | |
309 | ||
310 | playback::type * | |
311 | playback::context:: | |
312 | new_function_type (type *return_type, | |
b957b2e0 | 313 | const auto_vec<type *> *param_types, |
35485da9 DM |
314 | int is_variadic) |
315 | { | |
316 | int i; | |
317 | type *param_type; | |
318 | ||
319 | tree *arg_types = (tree *)xcalloc(param_types->length (), sizeof(tree*)); | |
320 | ||
321 | FOR_EACH_VEC_ELT (*param_types, i, param_type) | |
322 | arg_types[i] = param_type->as_tree (); | |
323 | ||
324 | tree fn_type; | |
325 | if (is_variadic) | |
326 | fn_type = | |
327 | build_varargs_function_type_array (return_type->as_tree (), | |
328 | param_types->length (), | |
329 | arg_types); | |
330 | else | |
331 | fn_type = build_function_type_array (return_type->as_tree (), | |
332 | param_types->length (), | |
333 | arg_types); | |
334 | free (arg_types); | |
335 | ||
336 | return new type (fn_type); | |
337 | } | |
338 | ||
339 | /* Construct a playback::param instance (wrapping a tree). */ | |
340 | ||
341 | playback::param * | |
342 | playback::context:: | |
343 | new_param (location *loc, | |
344 | type *type, | |
345 | const char *name) | |
346 | { | |
347 | gcc_assert (type); | |
348 | gcc_assert (name); | |
349 | tree inner = build_decl (UNKNOWN_LOCATION, PARM_DECL, | |
350 | get_identifier (name), type->as_tree ()); | |
351 | if (loc) | |
352 | set_tree_location (inner, loc); | |
353 | ||
354 | return new param (this, inner); | |
355 | } | |
356 | ||
357 | /* Construct a playback::function instance. */ | |
358 | ||
359 | playback::function * | |
360 | playback::context:: | |
361 | new_function (location *loc, | |
362 | enum gcc_jit_function_kind kind, | |
363 | type *return_type, | |
364 | const char *name, | |
b957b2e0 | 365 | const auto_vec<param *> *params, |
35485da9 DM |
366 | int is_variadic, |
367 | enum built_in_function builtin_id) | |
368 | { | |
369 | int i; | |
370 | param *param; | |
371 | ||
372 | //can return_type be NULL? | |
373 | gcc_assert (name); | |
374 | ||
375 | tree *arg_types = (tree *)xcalloc(params->length (), sizeof(tree*)); | |
376 | FOR_EACH_VEC_ELT (*params, i, param) | |
377 | arg_types[i] = TREE_TYPE (param->as_tree ()); | |
378 | ||
379 | tree fn_type; | |
380 | if (is_variadic) | |
381 | fn_type = build_varargs_function_type_array (return_type->as_tree (), | |
382 | params->length (), arg_types); | |
383 | else | |
384 | fn_type = build_function_type_array (return_type->as_tree (), | |
385 | params->length (), arg_types); | |
386 | free (arg_types); | |
387 | ||
388 | /* FIXME: this uses input_location: */ | |
389 | tree fndecl = build_fn_decl (name, fn_type); | |
390 | ||
391 | if (loc) | |
392 | set_tree_location (fndecl, loc); | |
393 | ||
394 | tree resdecl = build_decl (UNKNOWN_LOCATION, RESULT_DECL, | |
395 | NULL_TREE, return_type->as_tree ()); | |
396 | DECL_ARTIFICIAL (resdecl) = 1; | |
397 | DECL_IGNORED_P (resdecl) = 1; | |
398 | DECL_RESULT (fndecl) = resdecl; | |
399 | ||
400 | if (builtin_id) | |
401 | { | |
35485da9 DM |
402 | DECL_FUNCTION_CODE (fndecl) = builtin_id; |
403 | gcc_assert (loc == NULL); | |
404 | DECL_SOURCE_LOCATION (fndecl) = BUILTINS_LOCATION; | |
eeafb319 DM |
405 | |
406 | DECL_BUILT_IN_CLASS (fndecl) = | |
407 | builtins_manager::get_class (builtin_id); | |
408 | set_builtin_decl (builtin_id, fndecl, | |
409 | builtins_manager::implicit_p (builtin_id)); | |
410 | ||
411 | builtins_manager *bm = get_builtins_manager (); | |
412 | tree attrs = bm->get_attrs_tree (builtin_id); | |
413 | if (attrs) | |
414 | decl_attributes (&fndecl, attrs, ATTR_FLAG_BUILT_IN); | |
415 | else | |
416 | decl_attributes (&fndecl, NULL_TREE, 0); | |
35485da9 DM |
417 | } |
418 | ||
419 | if (kind != GCC_JIT_FUNCTION_IMPORTED) | |
420 | { | |
421 | tree param_decl_list = NULL; | |
422 | FOR_EACH_VEC_ELT (*params, i, param) | |
423 | { | |
424 | param_decl_list = chainon (param->as_tree (), param_decl_list); | |
425 | } | |
426 | ||
427 | /* The param list was created in reverse order; fix it: */ | |
428 | param_decl_list = nreverse (param_decl_list); | |
429 | ||
430 | tree t; | |
431 | for (t = param_decl_list; t; t = DECL_CHAIN (t)) | |
432 | { | |
433 | DECL_CONTEXT (t) = fndecl; | |
434 | DECL_ARG_TYPE (t) = TREE_TYPE (t); | |
435 | } | |
436 | ||
437 | /* Set it up on DECL_ARGUMENTS */ | |
438 | DECL_ARGUMENTS(fndecl) = param_decl_list; | |
439 | } | |
440 | ||
441 | if (kind == GCC_JIT_FUNCTION_ALWAYS_INLINE) | |
442 | { | |
443 | DECL_DECLARED_INLINE_P (fndecl) = 1; | |
444 | ||
445 | /* Add attribute "always_inline": */ | |
446 | DECL_ATTRIBUTES (fndecl) = | |
447 | tree_cons (get_identifier ("always_inline"), | |
448 | NULL, | |
449 | DECL_ATTRIBUTES (fndecl)); | |
450 | } | |
451 | ||
452 | function *func = new function (this, fndecl, kind); | |
453 | m_functions.safe_push (func); | |
454 | return func; | |
455 | } | |
456 | ||
457 | /* Construct a playback::lvalue instance (wrapping a tree). */ | |
458 | ||
459 | playback::lvalue * | |
460 | playback::context:: | |
461 | new_global (location *loc, | |
791cfef8 | 462 | enum gcc_jit_global_kind kind, |
c168eab9 UD |
463 | type *type, |
464 | const char *name) | |
35485da9 DM |
465 | { |
466 | gcc_assert (type); | |
467 | gcc_assert (name); | |
468 | tree inner = build_decl (UNKNOWN_LOCATION, VAR_DECL, | |
469 | get_identifier (name), | |
470 | type->as_tree ()); | |
791cfef8 | 471 | TREE_PUBLIC (inner) = (kind != GCC_JIT_GLOBAL_INTERNAL); |
35485da9 | 472 | DECL_COMMON (inner) = 1; |
791cfef8 DM |
473 | switch (kind) |
474 | { | |
475 | default: | |
476 | gcc_unreachable (); | |
477 | ||
478 | case GCC_JIT_GLOBAL_EXPORTED: | |
479 | TREE_STATIC (inner) = 1; | |
480 | break; | |
481 | ||
482 | case GCC_JIT_GLOBAL_INTERNAL: | |
483 | TREE_STATIC (inner) = 1; | |
484 | break; | |
485 | ||
486 | case GCC_JIT_GLOBAL_IMPORTED: | |
487 | DECL_EXTERNAL (inner) = 1; | |
488 | break; | |
489 | } | |
35485da9 DM |
490 | |
491 | if (loc) | |
492 | set_tree_location (inner, loc); | |
493 | ||
791cfef8 DM |
494 | varpool_node::get_create (inner); |
495 | ||
e4753451 DM |
496 | varpool_node::finalize_decl (inner); |
497 | ||
791cfef8 DM |
498 | m_globals.safe_push (inner); |
499 | ||
35485da9 DM |
500 | return new lvalue (this, inner); |
501 | } | |
502 | ||
ccce3b2a DM |
503 | /* Implementation of the various |
504 | gcc::jit::playback::context::new_rvalue_from_const <HOST_TYPE> | |
505 | methods. | |
506 | Each of these constructs a playback::rvalue instance (wrapping a tree). | |
35485da9 | 507 | |
ccce3b2a DM |
508 | These specializations are required to be in the same namespace |
509 | as the template, hence we now have to enter the gcc::jit::playback | |
510 | namespace. */ | |
511 | ||
512 | namespace playback | |
513 | { | |
514 | ||
515 | /* Specialization of making an rvalue from a const, for host <int>. */ | |
516 | ||
517 | template <> | |
518 | rvalue * | |
519 | context:: | |
520 | new_rvalue_from_const <int> (type *type, | |
521 | int value) | |
35485da9 DM |
522 | { |
523 | // FIXME: type-checking, or coercion? | |
524 | tree inner_type = type->as_tree (); | |
525 | if (INTEGRAL_TYPE_P (inner_type)) | |
526 | { | |
527 | tree inner = build_int_cst (inner_type, value); | |
528 | return new rvalue (this, inner); | |
529 | } | |
530 | else | |
531 | { | |
532 | REAL_VALUE_TYPE real_value; | |
533 | real_from_integer (&real_value, VOIDmode, value, SIGNED); | |
534 | tree inner = build_real (inner_type, real_value); | |
535 | return new rvalue (this, inner); | |
536 | } | |
537 | } | |
538 | ||
ccce3b2a | 539 | /* Specialization of making an rvalue from a const, for host <long>. */ |
35485da9 | 540 | |
ccce3b2a DM |
541 | template <> |
542 | rvalue * | |
543 | context:: | |
544 | new_rvalue_from_const <long> (type *type, | |
545 | long value) | |
546 | { | |
547 | // FIXME: type-checking, or coercion? | |
548 | tree inner_type = type->as_tree (); | |
549 | if (INTEGRAL_TYPE_P (inner_type)) | |
550 | { | |
551 | tree inner = build_int_cst (inner_type, value); | |
552 | return new rvalue (this, inner); | |
553 | } | |
554 | else | |
555 | { | |
556 | REAL_VALUE_TYPE real_value; | |
557 | real_from_integer (&real_value, VOIDmode, value, SIGNED); | |
558 | tree inner = build_real (inner_type, real_value); | |
559 | return new rvalue (this, inner); | |
560 | } | |
561 | } | |
562 | ||
563 | /* Specialization of making an rvalue from a const, for host <double>. */ | |
564 | ||
565 | template <> | |
566 | rvalue * | |
567 | context:: | |
568 | new_rvalue_from_const <double> (type *type, | |
569 | double value) | |
35485da9 DM |
570 | { |
571 | // FIXME: type-checking, or coercion? | |
572 | tree inner_type = type->as_tree (); | |
573 | ||
574 | /* We have a "double", we want a REAL_VALUE_TYPE. | |
575 | ||
576 | real.c:real_from_target appears to require the representation to be | |
577 | split into 32-bit values, and then sent as an pair of host long | |
578 | ints. */ | |
579 | REAL_VALUE_TYPE real_value; | |
580 | union | |
581 | { | |
582 | double as_double; | |
583 | uint32_t as_uint32s[2]; | |
584 | } u; | |
585 | u.as_double = value; | |
586 | long int as_long_ints[2]; | |
587 | as_long_ints[0] = u.as_uint32s[0]; | |
588 | as_long_ints[1] = u.as_uint32s[1]; | |
589 | real_from_target (&real_value, as_long_ints, DFmode); | |
590 | tree inner = build_real (inner_type, real_value); | |
591 | return new rvalue (this, inner); | |
592 | } | |
593 | ||
ccce3b2a | 594 | /* Specialization of making an rvalue from a const, for host <void *>. */ |
35485da9 | 595 | |
ccce3b2a DM |
596 | template <> |
597 | rvalue * | |
598 | context:: | |
599 | new_rvalue_from_const <void *> (type *type, | |
600 | void *value) | |
35485da9 DM |
601 | { |
602 | tree inner_type = type->as_tree (); | |
603 | /* FIXME: how to ensure we have a wide enough type? */ | |
604 | tree inner = build_int_cstu (inner_type, (unsigned HOST_WIDE_INT)value); | |
605 | return new rvalue (this, inner); | |
606 | } | |
607 | ||
ccce3b2a DM |
608 | /* We're done implementing the specializations of |
609 | gcc::jit::playback::context::new_rvalue_from_const <T> | |
610 | so we can exit the gcc::jit::playback namespace. */ | |
611 | ||
612 | } // namespace playback | |
613 | ||
35485da9 DM |
614 | /* Construct a playback::rvalue instance (wrapping a tree). */ |
615 | ||
616 | playback::rvalue * | |
617 | playback::context:: | |
618 | new_string_literal (const char *value) | |
619 | { | |
620 | tree t_str = build_string (strlen (value), value); | |
621 | gcc_assert (m_char_array_type_node); | |
622 | TREE_TYPE (t_str) = m_char_array_type_node; | |
623 | ||
624 | /* Convert to (const char*), loosely based on | |
625 | c/c-typeck.c: array_to_pointer_conversion, | |
626 | by taking address of start of string. */ | |
627 | tree t_addr = build1 (ADDR_EXPR, m_const_char_ptr, t_str); | |
628 | ||
629 | return new rvalue (this, t_addr); | |
630 | } | |
631 | ||
632 | /* Coerce a tree expression into a boolean tree expression. */ | |
633 | ||
634 | tree | |
635 | playback::context:: | |
636 | as_truth_value (tree expr, location *loc) | |
637 | { | |
638 | /* Compare to c-typeck.c:c_objc_common_truthvalue_conversion */ | |
639 | tree typed_zero = fold_build1 (CONVERT_EXPR, | |
640 | TREE_TYPE (expr), | |
641 | integer_zero_node); | |
642 | if (loc) | |
643 | set_tree_location (typed_zero, loc); | |
644 | ||
645 | expr = build2 (NE_EXPR, integer_type_node, expr, typed_zero); | |
646 | if (loc) | |
647 | set_tree_location (expr, loc); | |
648 | ||
649 | return expr; | |
650 | } | |
651 | ||
652 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
653 | unary op. */ | |
654 | ||
655 | playback::rvalue * | |
656 | playback::context:: | |
657 | new_unary_op (location *loc, | |
658 | enum gcc_jit_unary_op op, | |
659 | type *result_type, | |
660 | rvalue *a) | |
661 | { | |
662 | // FIXME: type-checking, or coercion? | |
663 | enum tree_code inner_op; | |
664 | ||
665 | gcc_assert (result_type); | |
666 | gcc_assert (a); | |
667 | ||
668 | tree node = a->as_tree (); | |
669 | tree inner_result = NULL; | |
670 | ||
671 | switch (op) | |
672 | { | |
673 | default: | |
674 | add_error (loc, "unrecognized (enum gcc_jit_unary_op) value: %i", op); | |
675 | return NULL; | |
676 | ||
677 | case GCC_JIT_UNARY_OP_MINUS: | |
678 | inner_op = NEGATE_EXPR; | |
679 | break; | |
680 | ||
681 | case GCC_JIT_UNARY_OP_BITWISE_NEGATE: | |
682 | inner_op = BIT_NOT_EXPR; | |
683 | break; | |
684 | ||
685 | case GCC_JIT_UNARY_OP_LOGICAL_NEGATE: | |
686 | node = as_truth_value (node, loc); | |
687 | inner_result = invert_truthvalue (node); | |
688 | if (loc) | |
689 | set_tree_location (inner_result, loc); | |
690 | return new rvalue (this, inner_result); | |
18146f45 DM |
691 | |
692 | case GCC_JIT_UNARY_OP_ABS: | |
693 | inner_op = ABS_EXPR; | |
694 | break; | |
35485da9 DM |
695 | } |
696 | ||
697 | inner_result = build1 (inner_op, | |
698 | result_type->as_tree (), | |
699 | node); | |
700 | if (loc) | |
701 | set_tree_location (inner_result, loc); | |
702 | ||
703 | return new rvalue (this, inner_result); | |
704 | } | |
705 | ||
706 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
707 | binary op. */ | |
708 | ||
709 | playback::rvalue * | |
710 | playback::context:: | |
711 | new_binary_op (location *loc, | |
712 | enum gcc_jit_binary_op op, | |
713 | type *result_type, | |
714 | rvalue *a, rvalue *b) | |
715 | { | |
716 | // FIXME: type-checking, or coercion? | |
717 | enum tree_code inner_op; | |
718 | ||
719 | gcc_assert (result_type); | |
720 | gcc_assert (a); | |
721 | gcc_assert (b); | |
722 | ||
723 | tree node_a = a->as_tree (); | |
724 | tree node_b = b->as_tree (); | |
725 | ||
726 | switch (op) | |
727 | { | |
728 | default: | |
729 | add_error (loc, "unrecognized (enum gcc_jit_binary_op) value: %i", op); | |
730 | return NULL; | |
731 | ||
732 | case GCC_JIT_BINARY_OP_PLUS: | |
733 | inner_op = PLUS_EXPR; | |
734 | break; | |
735 | ||
736 | case GCC_JIT_BINARY_OP_MINUS: | |
737 | inner_op = MINUS_EXPR; | |
738 | break; | |
739 | ||
740 | case GCC_JIT_BINARY_OP_MULT: | |
741 | inner_op = MULT_EXPR; | |
742 | break; | |
743 | ||
744 | case GCC_JIT_BINARY_OP_DIVIDE: | |
745 | if (FLOAT_TYPE_P (result_type->as_tree ())) | |
746 | /* Floating-point division: */ | |
747 | inner_op = RDIV_EXPR; | |
748 | else | |
749 | /* Truncating to zero: */ | |
750 | inner_op = TRUNC_DIV_EXPR; | |
751 | break; | |
752 | ||
753 | case GCC_JIT_BINARY_OP_MODULO: | |
754 | inner_op = TRUNC_MOD_EXPR; | |
755 | break; | |
756 | ||
757 | case GCC_JIT_BINARY_OP_BITWISE_AND: | |
758 | inner_op = BIT_AND_EXPR; | |
759 | break; | |
760 | ||
761 | case GCC_JIT_BINARY_OP_BITWISE_XOR: | |
762 | inner_op = BIT_XOR_EXPR; | |
763 | break; | |
764 | ||
765 | case GCC_JIT_BINARY_OP_BITWISE_OR: | |
766 | inner_op = BIT_IOR_EXPR; | |
767 | break; | |
768 | ||
769 | case GCC_JIT_BINARY_OP_LOGICAL_AND: | |
770 | node_a = as_truth_value (node_a, loc); | |
771 | node_b = as_truth_value (node_b, loc); | |
772 | inner_op = TRUTH_ANDIF_EXPR; | |
773 | break; | |
774 | ||
775 | case GCC_JIT_BINARY_OP_LOGICAL_OR: | |
776 | node_a = as_truth_value (node_a, loc); | |
777 | node_b = as_truth_value (node_b, loc); | |
778 | inner_op = TRUTH_ORIF_EXPR; | |
779 | break; | |
780 | ||
781 | case GCC_JIT_BINARY_OP_LSHIFT: | |
782 | inner_op = LSHIFT_EXPR; | |
783 | break; | |
784 | ||
785 | case GCC_JIT_BINARY_OP_RSHIFT: | |
786 | inner_op = RSHIFT_EXPR; | |
787 | break; | |
788 | } | |
789 | ||
790 | tree inner_expr = build2 (inner_op, | |
791 | result_type->as_tree (), | |
792 | node_a, | |
793 | node_b); | |
794 | if (loc) | |
795 | set_tree_location (inner_expr, loc); | |
796 | ||
797 | return new rvalue (this, inner_expr); | |
798 | } | |
799 | ||
800 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
801 | comparison. */ | |
802 | ||
803 | playback::rvalue * | |
804 | playback::context:: | |
805 | new_comparison (location *loc, | |
806 | enum gcc_jit_comparison op, | |
807 | rvalue *a, rvalue *b) | |
808 | { | |
809 | // FIXME: type-checking, or coercion? | |
810 | enum tree_code inner_op; | |
811 | ||
812 | gcc_assert (a); | |
813 | gcc_assert (b); | |
814 | ||
815 | switch (op) | |
816 | { | |
817 | default: | |
818 | add_error (loc, "unrecognized (enum gcc_jit_comparison) value: %i", op); | |
819 | return NULL; | |
820 | ||
821 | case GCC_JIT_COMPARISON_EQ: | |
822 | inner_op = EQ_EXPR; | |
823 | break; | |
824 | case GCC_JIT_COMPARISON_NE: | |
825 | inner_op = NE_EXPR; | |
826 | break; | |
827 | case GCC_JIT_COMPARISON_LT: | |
828 | inner_op = LT_EXPR; | |
829 | break; | |
830 | case GCC_JIT_COMPARISON_LE: | |
831 | inner_op = LE_EXPR; | |
832 | break; | |
833 | case GCC_JIT_COMPARISON_GT: | |
834 | inner_op = GT_EXPR; | |
835 | break; | |
836 | case GCC_JIT_COMPARISON_GE: | |
837 | inner_op = GE_EXPR; | |
838 | break; | |
839 | } | |
840 | ||
841 | tree inner_expr = build2 (inner_op, | |
842 | boolean_type_node, | |
843 | a->as_tree (), | |
844 | b->as_tree ()); | |
845 | if (loc) | |
846 | set_tree_location (inner_expr, loc); | |
847 | return new rvalue (this, inner_expr); | |
848 | } | |
849 | ||
850 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
851 | function call. */ | |
852 | ||
853 | playback::rvalue * | |
854 | playback::context:: | |
855 | build_call (location *loc, | |
856 | tree fn_ptr, | |
15c671a7 DM |
857 | const auto_vec<rvalue *> *args, |
858 | bool require_tail_call) | |
35485da9 DM |
859 | { |
860 | vec<tree, va_gc> *tree_args; | |
b957b2e0 DM |
861 | vec_alloc (tree_args, args->length ()); |
862 | for (unsigned i = 0; i < args->length (); i++) | |
863 | tree_args->quick_push ((*args)[i]->as_tree ()); | |
35485da9 DM |
864 | |
865 | if (loc) | |
866 | set_tree_location (fn_ptr, loc); | |
867 | ||
868 | tree fn = TREE_TYPE (fn_ptr); | |
869 | tree fn_type = TREE_TYPE (fn); | |
870 | tree return_type = TREE_TYPE (fn_type); | |
871 | ||
15c671a7 DM |
872 | tree call = build_call_vec (return_type, |
873 | fn_ptr, tree_args); | |
874 | ||
875 | if (require_tail_call) | |
876 | CALL_EXPR_MUST_TAIL_CALL (call) = 1; | |
877 | ||
878 | return new rvalue (this, call); | |
35485da9 DM |
879 | |
880 | /* see c-typeck.c: build_function_call | |
881 | which calls build_function_call_vec | |
882 | ||
883 | which does lots of checking, then: | |
884 | result = build_call_array_loc (loc, TREE_TYPE (fntype), | |
885 | function, nargs, argarray); | |
886 | which is in tree.c | |
887 | (see also build_call_vec) | |
888 | */ | |
889 | } | |
890 | ||
891 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
892 | call to a specific function. */ | |
893 | ||
894 | playback::rvalue * | |
895 | playback::context:: | |
896 | new_call (location *loc, | |
897 | function *func, | |
15c671a7 DM |
898 | const auto_vec<rvalue *> *args, |
899 | bool require_tail_call) | |
35485da9 DM |
900 | { |
901 | tree fndecl; | |
902 | ||
903 | gcc_assert (func); | |
904 | ||
905 | fndecl = func->as_fndecl (); | |
906 | ||
907 | tree fntype = TREE_TYPE (fndecl); | |
908 | ||
909 | tree fn = build1 (ADDR_EXPR, build_pointer_type (fntype), fndecl); | |
910 | ||
15c671a7 | 911 | return build_call (loc, fn, args, require_tail_call); |
35485da9 DM |
912 | } |
913 | ||
914 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
915 | call through a function pointer. */ | |
916 | ||
917 | playback::rvalue * | |
918 | playback::context:: | |
919 | new_call_through_ptr (location *loc, | |
920 | rvalue *fn_ptr, | |
15c671a7 DM |
921 | const auto_vec<rvalue *> *args, |
922 | bool require_tail_call) | |
35485da9 DM |
923 | { |
924 | gcc_assert (fn_ptr); | |
925 | tree t_fn_ptr = fn_ptr->as_tree (); | |
926 | ||
15c671a7 | 927 | return build_call (loc, t_fn_ptr, args, require_tail_call); |
35485da9 DM |
928 | } |
929 | ||
930 | /* Construct a tree for a cast. */ | |
931 | ||
932 | tree | |
933 | playback::context::build_cast (playback::location *loc, | |
934 | playback::rvalue *expr, | |
935 | playback::type *type_) | |
936 | { | |
937 | /* For comparison, see: | |
938 | - c/c-typeck.c:build_c_cast | |
939 | - c/c-convert.c: convert | |
940 | - convert.h | |
941 | ||
942 | Only some kinds of cast are currently supported here. */ | |
943 | tree t_expr = expr->as_tree (); | |
944 | tree t_dst_type = type_->as_tree (); | |
945 | tree t_ret = NULL; | |
946 | t_ret = targetm.convert_to_type (t_dst_type, t_expr); | |
947 | if (t_ret) | |
948 | return t_ret; | |
949 | enum tree_code dst_code = TREE_CODE (t_dst_type); | |
950 | switch (dst_code) | |
951 | { | |
952 | case INTEGER_TYPE: | |
953 | case ENUMERAL_TYPE: | |
954 | t_ret = convert_to_integer (t_dst_type, t_expr); | |
955 | goto maybe_fold; | |
956 | ||
957 | case BOOLEAN_TYPE: | |
958 | /* Compare with c_objc_common_truthvalue_conversion and | |
959 | c_common_truthvalue_conversion. */ | |
960 | /* For now, convert to: (t_expr != 0) */ | |
961 | t_ret = build2 (NE_EXPR, t_dst_type, | |
e8af59bc DM |
962 | t_expr, |
963 | build_int_cst (TREE_TYPE (t_expr), 0)); | |
35485da9 DM |
964 | goto maybe_fold; |
965 | ||
966 | case REAL_TYPE: | |
967 | t_ret = convert_to_real (t_dst_type, t_expr); | |
968 | goto maybe_fold; | |
969 | ||
970 | case POINTER_TYPE: | |
971 | t_ret = build1 (NOP_EXPR, t_dst_type, t_expr); | |
972 | goto maybe_fold; | |
973 | ||
974 | default: | |
975 | add_error (loc, "couldn't handle cast during playback"); | |
976 | fprintf (stderr, "input expression:\n"); | |
977 | debug_tree (t_expr); | |
978 | fprintf (stderr, "requested type:\n"); | |
979 | debug_tree (t_dst_type); | |
980 | return error_mark_node; | |
981 | ||
982 | maybe_fold: | |
983 | if (TREE_CODE (t_ret) != C_MAYBE_CONST_EXPR) | |
984 | t_ret = fold (t_ret); | |
985 | return t_ret; | |
986 | } | |
987 | } | |
988 | ||
989 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
990 | cast. */ | |
991 | ||
992 | playback::rvalue * | |
993 | playback::context:: | |
994 | new_cast (playback::location *loc, | |
995 | playback::rvalue *expr, | |
996 | playback::type *type_) | |
997 | { | |
998 | ||
999 | tree t_cast = build_cast (loc, expr, type_); | |
1000 | if (loc) | |
1001 | set_tree_location (t_cast, loc); | |
1002 | return new rvalue (this, t_cast); | |
1003 | } | |
1004 | ||
1005 | /* Construct a playback::lvalue instance (wrapping a tree) for an | |
1006 | array access. */ | |
1007 | ||
1008 | playback::lvalue * | |
1009 | playback::context:: | |
1010 | new_array_access (location *loc, | |
1011 | rvalue *ptr, | |
1012 | rvalue *index) | |
1013 | { | |
1014 | gcc_assert (ptr); | |
1015 | gcc_assert (index); | |
1016 | ||
1017 | /* For comparison, see: | |
1018 | c/c-typeck.c: build_array_ref | |
1019 | c-family/c-common.c: pointer_int_sum | |
1020 | */ | |
1021 | tree t_ptr = ptr->as_tree (); | |
1022 | tree t_index = index->as_tree (); | |
1023 | tree t_type_ptr = TREE_TYPE (t_ptr); | |
1024 | tree t_type_star_ptr = TREE_TYPE (t_type_ptr); | |
1025 | ||
1026 | if (TREE_CODE (t_type_ptr) == ARRAY_TYPE) | |
1027 | { | |
1028 | tree t_result = build4 (ARRAY_REF, t_type_star_ptr, t_ptr, t_index, | |
1029 | NULL_TREE, NULL_TREE); | |
1030 | if (loc) | |
c168eab9 | 1031 | set_tree_location (t_result, loc); |
35485da9 DM |
1032 | return new lvalue (this, t_result); |
1033 | } | |
1034 | else | |
1035 | { | |
1036 | /* Convert index to an offset in bytes. */ | |
1037 | tree t_sizeof = size_in_bytes (t_type_star_ptr); | |
1038 | t_index = fold_build1 (CONVERT_EXPR, sizetype, t_index); | |
1039 | tree t_offset = build2 (MULT_EXPR, sizetype, t_index, t_sizeof); | |
1040 | ||
1041 | /* Locate (ptr + offset). */ | |
1042 | tree t_address = build2 (POINTER_PLUS_EXPR, t_type_ptr, t_ptr, t_offset); | |
1043 | ||
1044 | tree t_indirection = build1 (INDIRECT_REF, t_type_star_ptr, t_address); | |
1045 | if (loc) | |
c168eab9 UD |
1046 | { |
1047 | set_tree_location (t_sizeof, loc); | |
1048 | set_tree_location (t_offset, loc); | |
1049 | set_tree_location (t_address, loc); | |
1050 | set_tree_location (t_indirection, loc); | |
1051 | } | |
35485da9 DM |
1052 | |
1053 | return new lvalue (this, t_indirection); | |
1054 | } | |
1055 | } | |
1056 | ||
1057 | /* Construct a tree for a field access. */ | |
1058 | ||
1059 | tree | |
1060 | playback::context:: | |
1061 | new_field_access (location *loc, | |
1062 | tree datum, | |
1063 | field *field) | |
1064 | { | |
1065 | gcc_assert (datum); | |
1066 | gcc_assert (field); | |
1067 | ||
1068 | /* Compare with c/c-typeck.c:lookup_field, build_indirect_ref, and | |
1069 | build_component_ref. */ | |
1070 | tree type = TREE_TYPE (datum); | |
1071 | gcc_assert (type); | |
1072 | gcc_assert (TREE_CODE (type) != POINTER_TYPE); | |
1073 | ||
1074 | tree t_field = field->as_tree (); | |
1075 | tree ref = build3 (COMPONENT_REF, TREE_TYPE (t_field), datum, | |
1076 | t_field, NULL_TREE); | |
1077 | if (loc) | |
1078 | set_tree_location (ref, loc); | |
1079 | return ref; | |
1080 | } | |
1081 | ||
1082 | /* Construct a tree for a dereference. */ | |
1083 | ||
1084 | tree | |
1085 | playback::context:: | |
1086 | new_dereference (tree ptr, | |
1087 | location *loc) | |
1088 | { | |
1089 | gcc_assert (ptr); | |
1090 | ||
1091 | tree type = TREE_TYPE (TREE_TYPE(ptr)); | |
1092 | tree datum = build1 (INDIRECT_REF, type, ptr); | |
1093 | if (loc) | |
1094 | set_tree_location (datum, loc); | |
1095 | return datum; | |
1096 | } | |
1097 | ||
0ebd1f00 DM |
1098 | /* Construct a playback::type instance (wrapping a tree) |
1099 | with the given alignment. */ | |
1100 | ||
1101 | playback::type * | |
1102 | playback::type:: | |
1103 | get_aligned (size_t alignment_in_bytes) const | |
1104 | { | |
1105 | tree t_new_type = build_variant_type_copy (m_inner); | |
1106 | ||
1107 | SET_TYPE_ALIGN (t_new_type, alignment_in_bytes * BITS_PER_UNIT); | |
1108 | TYPE_USER_ALIGN (t_new_type) = 1; | |
1109 | ||
1110 | return new type (t_new_type); | |
1111 | } | |
1112 | ||
47ee1b7c DM |
1113 | /* Construct a playback::type instance (wrapping a tree) |
1114 | for the given vector type. */ | |
1115 | ||
1116 | playback::type * | |
1117 | playback::type:: | |
1118 | get_vector (size_t num_units) const | |
1119 | { | |
1120 | tree t_new_type = build_vector_type (m_inner, num_units); | |
1121 | return new type (t_new_type); | |
1122 | } | |
1123 | ||
35485da9 DM |
1124 | /* Construct a playback::lvalue instance (wrapping a tree) for a |
1125 | field access. */ | |
1126 | ||
1127 | playback::lvalue * | |
1128 | playback::lvalue:: | |
1129 | access_field (location *loc, | |
1130 | field *field) | |
1131 | { | |
1132 | tree datum = as_tree (); | |
1133 | tree ref = get_context ()->new_field_access (loc, datum, field); | |
1134 | if (!ref) | |
1135 | return NULL; | |
1136 | return new lvalue (get_context (), ref); | |
1137 | } | |
1138 | ||
1139 | /* Construct a playback::rvalue instance (wrapping a tree) for a | |
1140 | field access. */ | |
1141 | ||
1142 | playback::rvalue * | |
1143 | playback::rvalue:: | |
1144 | access_field (location *loc, | |
1145 | field *field) | |
1146 | { | |
1147 | tree datum = as_tree (); | |
1148 | tree ref = get_context ()->new_field_access (loc, datum, field); | |
1149 | if (!ref) | |
1150 | return NULL; | |
1151 | return new rvalue (get_context (), ref); | |
1152 | } | |
1153 | ||
1154 | /* Construct a playback::lvalue instance (wrapping a tree) for a | |
1155 | dereferenced field access. */ | |
1156 | ||
1157 | playback::lvalue * | |
1158 | playback::rvalue:: | |
1159 | dereference_field (location *loc, | |
1160 | field *field) | |
1161 | { | |
1162 | tree ptr = as_tree (); | |
1163 | tree datum = get_context ()->new_dereference (ptr, loc); | |
1164 | if (!datum) | |
1165 | return NULL; | |
1166 | tree ref = get_context ()->new_field_access (loc, datum, field); | |
1167 | if (!ref) | |
1168 | return NULL; | |
1169 | return new lvalue (get_context (), ref); | |
1170 | } | |
1171 | ||
1172 | /* Construct a playback::lvalue instance (wrapping a tree) for a | |
1173 | dereference. */ | |
1174 | ||
1175 | playback::lvalue * | |
1176 | playback::rvalue:: | |
1177 | dereference (location *loc) | |
1178 | { | |
1179 | tree ptr = as_tree (); | |
1180 | tree datum = get_context ()->new_dereference (ptr, loc); | |
1181 | return new lvalue (get_context (), datum); | |
1182 | } | |
1183 | ||
e09abfa4 DM |
1184 | /* Mark EXP saying that we need to be able to take the |
1185 | address of it; it should not be allocated in a register. | |
1186 | Compare with e.g. c/c-typeck.c: c_mark_addressable. */ | |
1187 | ||
1188 | static void | |
1189 | jit_mark_addressable (tree exp) | |
1190 | { | |
1191 | tree x = exp; | |
1192 | ||
1193 | while (1) | |
1194 | switch (TREE_CODE (x)) | |
1195 | { | |
1196 | case COMPONENT_REF: | |
1197 | /* (we don't yet support bitfields) */ | |
1198 | /* fallthrough */ | |
1199 | case ADDR_EXPR: | |
1200 | case ARRAY_REF: | |
1201 | case REALPART_EXPR: | |
1202 | case IMAGPART_EXPR: | |
1203 | x = TREE_OPERAND (x, 0); | |
1204 | break; | |
1205 | ||
1206 | case COMPOUND_LITERAL_EXPR: | |
1207 | case CONSTRUCTOR: | |
1208 | TREE_ADDRESSABLE (x) = 1; | |
1209 | return; | |
1210 | ||
1211 | case VAR_DECL: | |
1212 | case CONST_DECL: | |
1213 | case PARM_DECL: | |
1214 | case RESULT_DECL: | |
1215 | /* (we don't have a concept of a "register" declaration) */ | |
1216 | /* fallthrough */ | |
1217 | case FUNCTION_DECL: | |
1218 | TREE_ADDRESSABLE (x) = 1; | |
1219 | /* fallthrough */ | |
1220 | default: | |
1221 | return; | |
1222 | } | |
1223 | } | |
1224 | ||
35485da9 DM |
1225 | /* Construct a playback::rvalue instance (wrapping a tree) for an |
1226 | address-lookup. */ | |
1227 | ||
1228 | playback::rvalue * | |
1229 | playback::lvalue:: | |
1230 | get_address (location *loc) | |
1231 | { | |
1232 | tree t_lvalue = as_tree (); | |
1233 | tree t_thistype = TREE_TYPE (t_lvalue); | |
1234 | tree t_ptrtype = build_pointer_type (t_thistype); | |
1235 | tree ptr = build1 (ADDR_EXPR, t_ptrtype, t_lvalue); | |
1236 | if (loc) | |
1237 | get_context ()->set_tree_location (ptr, loc); | |
e09abfa4 | 1238 | jit_mark_addressable (t_lvalue); |
35485da9 DM |
1239 | return new rvalue (get_context (), ptr); |
1240 | } | |
1241 | ||
b957b2e0 DM |
1242 | /* The wrapper subclasses are GC-managed, but can own non-GC memory. |
1243 | Provide this finalization hook for calling then they are collected, | |
1244 | which calls the finalizer vfunc. This allows them to call "release" | |
1245 | on any vec<> within them. */ | |
1246 | ||
1247 | static void | |
1248 | wrapper_finalizer (void *ptr) | |
1249 | { | |
1250 | playback::wrapper *wrapper = reinterpret_cast <playback::wrapper *> (ptr); | |
1251 | wrapper->finalizer (); | |
1252 | } | |
1253 | ||
35485da9 DM |
1254 | /* gcc::jit::playback::wrapper subclasses are GC-managed: |
1255 | allocate them using ggc_internal_cleared_alloc. */ | |
1256 | ||
1257 | void * | |
1258 | playback::wrapper:: | |
1259 | operator new (size_t sz) | |
1260 | { | |
b957b2e0 DM |
1261 | return ggc_internal_cleared_alloc (sz, wrapper_finalizer, 0, 1); |
1262 | ||
35485da9 DM |
1263 | } |
1264 | ||
1265 | /* Constructor for gcc:jit::playback::function. */ | |
1266 | ||
1267 | playback::function:: | |
1268 | function (context *ctxt, | |
1269 | tree fndecl, | |
1270 | enum gcc_jit_function_kind kind) | |
1271 | : m_ctxt(ctxt), | |
1272 | m_inner_fndecl (fndecl), | |
1273 | m_inner_bind_expr (NULL), | |
1274 | m_kind (kind) | |
1275 | { | |
1276 | if (m_kind != GCC_JIT_FUNCTION_IMPORTED) | |
1277 | { | |
1278 | /* Create a BIND_EXPR, and within it, a statement list. */ | |
1279 | m_stmt_list = alloc_stmt_list (); | |
1280 | m_stmt_iter = tsi_start (m_stmt_list); | |
1281 | m_inner_block = make_node (BLOCK); | |
1282 | m_inner_bind_expr = | |
1283 | build3 (BIND_EXPR, void_type_node, NULL, m_stmt_list, m_inner_block); | |
1284 | } | |
1285 | else | |
1286 | { | |
1287 | m_inner_block = NULL; | |
1288 | m_stmt_list = NULL; | |
1289 | } | |
1290 | } | |
1291 | ||
1292 | /* Hand-written GC-marking hook for playback functions. */ | |
1293 | ||
1294 | void | |
1295 | playback::function:: | |
1296 | gt_ggc_mx () | |
1297 | { | |
1298 | gt_ggc_m_9tree_node (m_inner_fndecl); | |
1299 | gt_ggc_m_9tree_node (m_inner_bind_expr); | |
1300 | gt_ggc_m_9tree_node (m_stmt_list); | |
1301 | gt_ggc_m_9tree_node (m_inner_block); | |
1302 | } | |
1303 | ||
b957b2e0 DM |
1304 | /* Don't leak vec's internal buffer (in non-GC heap) when we are |
1305 | GC-ed. */ | |
1306 | ||
1307 | void | |
1308 | playback::function::finalizer () | |
1309 | { | |
1310 | m_blocks.release (); | |
1311 | } | |
1312 | ||
35485da9 DM |
1313 | /* Get the return type of a playback function, in tree form. */ |
1314 | ||
1315 | tree | |
1316 | playback::function:: | |
1317 | get_return_type_as_tree () const | |
1318 | { | |
1319 | return TREE_TYPE (TREE_TYPE(m_inner_fndecl)); | |
1320 | } | |
1321 | ||
1322 | /* Construct a new local within this playback::function. */ | |
1323 | ||
1324 | playback::lvalue * | |
1325 | playback::function:: | |
1326 | new_local (location *loc, | |
1327 | type *type, | |
1328 | const char *name) | |
1329 | { | |
1330 | gcc_assert (type); | |
1331 | gcc_assert (name); | |
1332 | tree inner = build_decl (UNKNOWN_LOCATION, VAR_DECL, | |
1333 | get_identifier (name), | |
1334 | type->as_tree ()); | |
1335 | DECL_CONTEXT (inner) = this->m_inner_fndecl; | |
1336 | ||
1337 | /* Prepend to BIND_EXPR_VARS: */ | |
1338 | DECL_CHAIN (inner) = BIND_EXPR_VARS (m_inner_bind_expr); | |
1339 | BIND_EXPR_VARS (m_inner_bind_expr) = inner; | |
1340 | ||
1341 | if (loc) | |
1342 | set_tree_location (inner, loc); | |
1343 | return new lvalue (m_ctxt, inner); | |
1344 | } | |
1345 | ||
1346 | /* Construct a new block within this playback::function. */ | |
1347 | ||
1348 | playback::block * | |
1349 | playback::function:: | |
1350 | new_block (const char *name) | |
1351 | { | |
1352 | gcc_assert (m_kind != GCC_JIT_FUNCTION_IMPORTED); | |
1353 | ||
1354 | block *result = new playback::block (this, name); | |
1355 | m_blocks.safe_push (result); | |
1356 | return result; | |
1357 | } | |
1358 | ||
15a65e63 DM |
1359 | /* Construct a playback::rvalue instance wrapping an ADDR_EXPR for |
1360 | this playback::function. */ | |
1361 | ||
1362 | playback::rvalue * | |
1363 | playback::function::get_address (location *loc) | |
1364 | { | |
1365 | tree t_fndecl = as_fndecl (); | |
1366 | tree t_fntype = TREE_TYPE (t_fndecl); | |
1367 | tree t_fnptr = build1 (ADDR_EXPR, build_pointer_type (t_fntype), t_fndecl); | |
1368 | if (loc) | |
1369 | m_ctxt->set_tree_location (t_fnptr, loc); | |
1370 | return new rvalue (m_ctxt, t_fnptr); | |
1371 | } | |
1372 | ||
35485da9 DM |
1373 | /* Build a statement list for the function as a whole out of the |
1374 | lists of statements for the individual blocks, building labels | |
1375 | for each block. */ | |
1376 | ||
1377 | void | |
1378 | playback::function:: | |
1379 | build_stmt_list () | |
1380 | { | |
1381 | int i; | |
1382 | block *b; | |
1383 | ||
eb4c16eb DM |
1384 | JIT_LOG_SCOPE (m_ctxt->get_logger ()); |
1385 | ||
35485da9 DM |
1386 | FOR_EACH_VEC_ELT (m_blocks, i, b) |
1387 | { | |
1388 | int j; | |
1389 | tree stmt; | |
1390 | ||
1391 | b->m_label_expr = build1 (LABEL_EXPR, | |
1392 | void_type_node, | |
1393 | b->as_label_decl ()); | |
1394 | tsi_link_after (&m_stmt_iter, b->m_label_expr, TSI_CONTINUE_LINKING); | |
1395 | ||
1396 | FOR_EACH_VEC_ELT (b->m_stmts, j, stmt) | |
1397 | tsi_link_after (&m_stmt_iter, stmt, TSI_CONTINUE_LINKING); | |
1398 | } | |
1399 | } | |
1400 | ||
1401 | /* Finish compiling the given function, potentially running the | |
1402 | garbage-collector. | |
1403 | The function will have a statement list by now. | |
1404 | Amongst other things, this gimplifies the statement list, | |
1405 | and calls cgraph_node::finalize_function on the function. */ | |
1406 | ||
1407 | void | |
1408 | playback::function:: | |
1409 | postprocess () | |
1410 | { | |
eb4c16eb DM |
1411 | JIT_LOG_SCOPE (m_ctxt->get_logger ()); |
1412 | ||
35485da9 DM |
1413 | if (m_ctxt->get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_INITIAL_TREE)) |
1414 | debug_tree (m_stmt_list); | |
1415 | ||
1416 | /* Do we need this to force cgraphunit.c to output the function? */ | |
1417 | if (m_kind == GCC_JIT_FUNCTION_EXPORTED) | |
1418 | { | |
1419 | DECL_EXTERNAL (m_inner_fndecl) = 0; | |
1420 | DECL_PRESERVE_P (m_inner_fndecl) = 1; | |
1421 | } | |
1422 | ||
1423 | if (m_kind == GCC_JIT_FUNCTION_INTERNAL | |
1424 | ||m_kind == GCC_JIT_FUNCTION_ALWAYS_INLINE) | |
1425 | { | |
1426 | DECL_EXTERNAL (m_inner_fndecl) = 0; | |
1427 | TREE_PUBLIC (m_inner_fndecl) = 0; | |
1428 | } | |
1429 | ||
1430 | if (m_kind != GCC_JIT_FUNCTION_IMPORTED) | |
1431 | { | |
1432 | /* Seem to need this in gimple-low.c: */ | |
1433 | gcc_assert (m_inner_block); | |
1434 | DECL_INITIAL (m_inner_fndecl) = m_inner_block; | |
1435 | ||
1436 | /* how to add to function? the following appears to be how to | |
1437 | set the body of a m_inner_fndecl: */ | |
1438 | DECL_SAVED_TREE(m_inner_fndecl) = m_inner_bind_expr; | |
1439 | ||
1440 | /* Ensure that locals appear in the debuginfo. */ | |
1441 | BLOCK_VARS (m_inner_block) = BIND_EXPR_VARS (m_inner_bind_expr); | |
1442 | ||
1443 | //debug_tree (m_inner_fndecl); | |
1444 | ||
1445 | /* Convert to gimple: */ | |
1446 | //printf("about to gimplify_function_tree\n"); | |
1447 | gimplify_function_tree (m_inner_fndecl); | |
1448 | //printf("finished gimplify_function_tree\n"); | |
1449 | ||
1450 | current_function_decl = m_inner_fndecl; | |
1451 | if (m_ctxt->get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_INITIAL_GIMPLE)) | |
1452 | dump_function_to_file (m_inner_fndecl, stderr, TDF_VOPS|TDF_MEMSYMS|TDF_LINENO); | |
1453 | //debug_tree (m_inner_fndecl); | |
1454 | ||
1455 | //printf("about to add to cgraph\n"); | |
1456 | /* Add to cgraph: */ | |
1457 | cgraph_node::finalize_function (m_inner_fndecl, false); | |
1458 | /* This can trigger a collection, so we need to have all of | |
1459 | the funcs as roots. */ | |
1460 | ||
1461 | current_function_decl = NULL; | |
1462 | } | |
1463 | } | |
1464 | ||
b957b2e0 DM |
1465 | /* Don't leak vec's internal buffer (in non-GC heap) when we are |
1466 | GC-ed. */ | |
1467 | ||
1468 | void | |
1469 | playback::block::finalizer () | |
1470 | { | |
1471 | m_stmts.release (); | |
1472 | } | |
1473 | ||
35485da9 DM |
1474 | /* Add an eval of the rvalue to the function's statement list. */ |
1475 | ||
1476 | void | |
1477 | playback::block:: | |
1478 | add_eval (location *loc, | |
1479 | rvalue *rvalue) | |
1480 | { | |
1481 | gcc_assert (rvalue); | |
1482 | ||
1483 | if (loc) | |
1484 | set_tree_location (rvalue->as_tree (), loc); | |
1485 | ||
1486 | add_stmt (rvalue->as_tree ()); | |
1487 | } | |
1488 | ||
1489 | /* Add an assignment to the function's statement list. */ | |
1490 | ||
1491 | void | |
1492 | playback::block:: | |
1493 | add_assignment (location *loc, | |
1494 | lvalue *lvalue, | |
1495 | rvalue *rvalue) | |
1496 | { | |
1497 | gcc_assert (lvalue); | |
1498 | gcc_assert (rvalue); | |
1499 | ||
1500 | tree t_lvalue = lvalue->as_tree (); | |
1501 | tree t_rvalue = rvalue->as_tree (); | |
1502 | if (TREE_TYPE (t_rvalue) != TREE_TYPE (t_lvalue)) | |
1503 | { | |
1504 | t_rvalue = build1 (CONVERT_EXPR, | |
c168eab9 UD |
1505 | TREE_TYPE (t_lvalue), |
1506 | t_rvalue); | |
35485da9 DM |
1507 | if (loc) |
1508 | set_tree_location (t_rvalue, loc); | |
1509 | } | |
1510 | ||
1511 | tree stmt = | |
1512 | build2 (MODIFY_EXPR, TREE_TYPE (t_lvalue), | |
1513 | t_lvalue, t_rvalue); | |
1514 | if (loc) | |
1515 | set_tree_location (stmt, loc); | |
1516 | add_stmt (stmt); | |
1517 | } | |
1518 | ||
1519 | /* Add a comment to the function's statement list. | |
1520 | For now this is done by adding a dummy label. */ | |
1521 | ||
1522 | void | |
1523 | playback::block:: | |
1524 | add_comment (location *loc, | |
1525 | const char *text) | |
1526 | { | |
1527 | /* Wrap the text in C-style comment delimiters. */ | |
1528 | size_t sz = | |
1529 | (3 /* opening delim */ | |
1530 | + strlen (text) | |
1531 | + 3 /* closing delim */ | |
1532 | + 1 /* terminator */); | |
1533 | char *wrapped = (char *)ggc_internal_alloc (sz); | |
1534 | snprintf (wrapped, sz, "/* %s */", text); | |
1535 | ||
1536 | /* For now we simply implement this by adding a dummy label with a name | |
1537 | containing the given text. */ | |
1538 | tree identifier = get_identifier (wrapped); | |
1539 | tree label_decl = build_decl (UNKNOWN_LOCATION, LABEL_DECL, | |
1540 | identifier, void_type_node); | |
1541 | DECL_CONTEXT (label_decl) = m_func->as_fndecl (); | |
1542 | ||
1543 | tree label_expr = build1 (LABEL_EXPR, void_type_node, label_decl); | |
1544 | if (loc) | |
1545 | set_tree_location (label_expr, loc); | |
1546 | add_stmt (label_expr); | |
1547 | } | |
1548 | ||
1549 | /* Add a conditional jump statement to the function's statement list. */ | |
1550 | ||
1551 | void | |
1552 | playback::block:: | |
1553 | add_conditional (location *loc, | |
1554 | rvalue *boolval, | |
1555 | block *on_true, | |
1556 | block *on_false) | |
1557 | { | |
1558 | gcc_assert (boolval); | |
1559 | gcc_assert (on_true); | |
1560 | gcc_assert (on_false); | |
1561 | ||
1562 | /* COND_EXPR wants statement lists for the true/false operands, but we | |
1563 | want labels. | |
1564 | Shim it by creating jumps to the labels */ | |
1565 | tree true_jump = build1 (GOTO_EXPR, void_type_node, | |
1566 | on_true->as_label_decl ()); | |
1567 | if (loc) | |
1568 | set_tree_location (true_jump, loc); | |
1569 | ||
1570 | tree false_jump = build1 (GOTO_EXPR, void_type_node, | |
1571 | on_false->as_label_decl ()); | |
1572 | if (loc) | |
1573 | set_tree_location (false_jump, loc); | |
1574 | ||
1575 | tree stmt = | |
1576 | build3 (COND_EXPR, void_type_node, boolval->as_tree (), | |
1577 | true_jump, false_jump); | |
1578 | if (loc) | |
1579 | set_tree_location (stmt, loc); | |
1580 | add_stmt (stmt); | |
1581 | } | |
1582 | ||
1583 | /* Add an unconditional jump statement to the function's statement list. */ | |
1584 | ||
1585 | void | |
1586 | playback::block:: | |
1587 | add_jump (location *loc, | |
1588 | block *target) | |
1589 | { | |
1590 | gcc_assert (target); | |
1591 | ||
1592 | // see c_finish_loop | |
1593 | //tree top = build1 (LABEL_EXPR, void_type_node, NULL_TREE); | |
1594 | //add_stmt (top); | |
1595 | ||
1596 | //tree stmt = build_and_jump (&LABEL_EXPR_LABEL (target->label_)); | |
1597 | TREE_USED (target->as_label_decl ()) = 1; | |
1598 | tree stmt = build1 (GOTO_EXPR, void_type_node, target->as_label_decl ()); | |
1599 | if (loc) | |
1600 | set_tree_location (stmt, loc); | |
1601 | add_stmt (stmt); | |
1602 | ||
1603 | /* | |
1604 | from c-typeck.c: | |
1605 | tree | |
1606 | c_finish_goto_label (location_t loc, tree label) | |
1607 | { | |
1608 | tree decl = lookup_label_for_goto (loc, label); | |
1609 | if (!decl) | |
1610 | return NULL_TREE; | |
1611 | TREE_USED (decl) = 1; | |
1612 | { | |
1613 | tree t = build1 (GOTO_EXPR, void_type_node, decl); | |
1614 | SET_EXPR_LOCATION (t, loc); | |
1615 | return add_stmt (t); | |
1616 | } | |
1617 | } | |
1618 | */ | |
1619 | ||
1620 | } | |
1621 | ||
1622 | /* Add a return statement to the function's statement list. */ | |
1623 | ||
1624 | void | |
1625 | playback::block:: | |
1626 | add_return (location *loc, | |
1627 | rvalue *rvalue) | |
1628 | { | |
1629 | tree modify_retval = NULL; | |
1630 | tree return_type = m_func->get_return_type_as_tree (); | |
1631 | if (rvalue) | |
1632 | { | |
1633 | tree t_lvalue = DECL_RESULT (m_func->as_fndecl ()); | |
1634 | tree t_rvalue = rvalue->as_tree (); | |
1635 | if (TREE_TYPE (t_rvalue) != TREE_TYPE (t_lvalue)) | |
1636 | t_rvalue = build1 (CONVERT_EXPR, | |
1637 | TREE_TYPE (t_lvalue), | |
1638 | t_rvalue); | |
1639 | modify_retval = build2 (MODIFY_EXPR, return_type, | |
1640 | t_lvalue, t_rvalue); | |
1641 | if (loc) | |
1642 | set_tree_location (modify_retval, loc); | |
1643 | } | |
1644 | tree return_stmt = build1 (RETURN_EXPR, return_type, | |
1645 | modify_retval); | |
1646 | if (loc) | |
1647 | set_tree_location (return_stmt, loc); | |
1648 | ||
1649 | add_stmt (return_stmt); | |
1650 | } | |
1651 | ||
ec5d0088 DM |
1652 | /* Helper function for playback::block::add_switch. |
1653 | Construct a case label for the given range, followed by a goto stmt | |
1654 | to the given block, appending them to stmt list *ptr_t_switch_body. */ | |
1655 | ||
1656 | static void | |
1657 | add_case (tree *ptr_t_switch_body, | |
1658 | tree t_low_value, | |
1659 | tree t_high_value, | |
1660 | playback::block *dest_block) | |
1661 | { | |
1662 | tree t_label = create_artificial_label (UNKNOWN_LOCATION); | |
1663 | DECL_CONTEXT (t_label) = dest_block->get_function ()->as_fndecl (); | |
1664 | ||
1665 | tree t_case_label = | |
1666 | build_case_label (t_low_value, t_high_value, t_label); | |
1667 | append_to_statement_list (t_case_label, ptr_t_switch_body); | |
1668 | ||
1669 | tree t_goto_stmt = | |
1670 | build1 (GOTO_EXPR, void_type_node, dest_block->as_label_decl ()); | |
1671 | append_to_statement_list (t_goto_stmt, ptr_t_switch_body); | |
1672 | } | |
1673 | ||
1674 | /* Add a switch statement to the function's statement list. | |
1675 | ||
1676 | My initial attempt at implementing this constructed a TREE_VEC | |
1677 | of the cases and set it as SWITCH_LABELS (switch_expr). However, | |
1678 | gimplify.c:gimplify_switch_expr is set up to deal with SWITCH_BODY, and | |
1679 | doesn't have any logic for gimplifying SWITCH_LABELS. | |
1680 | ||
1681 | Hence we create a switch body, and populate it with case labels, each | |
1682 | followed by a goto to the desired block. */ | |
1683 | ||
1684 | void | |
1685 | playback::block:: | |
1686 | add_switch (location *loc, | |
1687 | rvalue *expr, | |
1688 | block *default_block, | |
1689 | const auto_vec <case_> *cases) | |
1690 | { | |
1691 | /* Compare with: | |
1692 | - c/c-typeck.c: c_start_case | |
1693 | - c-family/c-common.c:c_add_case_label | |
1694 | - java/expr.c:expand_java_switch and expand_java_add_case | |
1695 | We've already rejected overlaps and duplicates in | |
1696 | libgccjit.c:case_range_validator::validate. */ | |
1697 | ||
1698 | tree t_expr = expr->as_tree (); | |
1699 | tree t_type = TREE_TYPE (t_expr); | |
1700 | ||
1701 | tree t_switch_body = alloc_stmt_list (); | |
1702 | ||
1703 | int i; | |
1704 | case_ *c; | |
1705 | FOR_EACH_VEC_ELT (*cases, i, c) | |
1706 | { | |
1707 | tree t_low_value = c->m_min_value->as_tree (); | |
1708 | tree t_high_value = c->m_max_value->as_tree (); | |
1709 | add_case (&t_switch_body, | |
1710 | t_low_value, | |
1711 | t_high_value, | |
1712 | c->m_dest_block); | |
1713 | } | |
1714 | /* Default label. */ | |
1715 | add_case (&t_switch_body, | |
1716 | NULL_TREE, NULL_TREE, | |
1717 | default_block); | |
1718 | ||
1719 | tree switch_stmt = build3 (SWITCH_EXPR, t_type, t_expr, | |
1720 | t_switch_body, NULL_TREE); | |
1721 | if (loc) | |
1722 | set_tree_location (switch_stmt, loc); | |
1723 | add_stmt (switch_stmt); | |
1724 | } | |
1725 | ||
35485da9 DM |
1726 | /* Constructor for gcc::jit::playback::block. */ |
1727 | ||
1728 | playback::block:: | |
1729 | block (function *func, | |
1730 | const char *name) | |
1731 | : m_func (func), | |
1732 | m_stmts () | |
1733 | { | |
1734 | tree identifier; | |
1735 | ||
1736 | gcc_assert (func); | |
1737 | // name can be NULL | |
1738 | if (name) | |
1739 | identifier = get_identifier (name); | |
1740 | else | |
1741 | identifier = NULL; | |
1742 | m_label_decl = build_decl (UNKNOWN_LOCATION, LABEL_DECL, | |
1743 | identifier, void_type_node); | |
1744 | DECL_CONTEXT (m_label_decl) = func->as_fndecl (); | |
1745 | m_label_expr = NULL; | |
1746 | } | |
1747 | ||
463366a0 DM |
1748 | /* A subclass of auto_vec <char *> that frees all of its elements on |
1749 | deletion. */ | |
1750 | ||
1751 | class auto_argvec : public auto_vec <char *> | |
1752 | { | |
1753 | public: | |
1754 | ~auto_argvec (); | |
1755 | }; | |
1756 | ||
1757 | /* auto_argvec's dtor, freeing all contained strings, automatically | |
1758 | chaining up to ~auto_vec <char *>, which frees the internal buffer. */ | |
1759 | ||
1760 | auto_argvec::~auto_argvec () | |
1761 | { | |
1762 | int i; | |
1763 | char *str; | |
1764 | FOR_EACH_VEC_ELT (*this, i, str) | |
1765 | free (str); | |
1766 | } | |
1767 | ||
35485da9 DM |
1768 | /* Compile a playback::context: |
1769 | ||
1770 | - Use the context's options to cconstruct command-line options, and | |
1771 | call into the rest of GCC (toplev::main). | |
fdce7209 DM |
1772 | - Assuming it succeeds, we have a .s file. |
1773 | - We then run the "postprocess" vfunc: | |
35485da9 | 1774 | |
fdce7209 DM |
1775 | (A) In-memory compile ("gcc_jit_context_compile") |
1776 | ||
1777 | For an in-memory compile we have the playback::compile_to_memory | |
1778 | subclass; "postprocess" will convert the .s file to a .so DSO, | |
1779 | and load it in memory (via dlopen), wrapping the result up as | |
1780 | a jit::result and returning it. | |
1781 | ||
1782 | (B) Compile to file ("gcc_jit_context_compile_to_file") | |
1783 | ||
1784 | When compiling to a file, we have the playback::compile_to_file | |
1785 | subclass; "postprocess" will either copy the .s file to the | |
1786 | destination (for GCC_JIT_OUTPUT_KIND_ASSEMBLER), or invoke | |
1787 | the driver to convert it as necessary, copying the result. */ | |
1788 | ||
1789 | void | |
35485da9 DM |
1790 | playback::context:: |
1791 | compile () | |
1792 | { | |
eb4c16eb DM |
1793 | JIT_LOG_SCOPE (get_logger ()); |
1794 | ||
35485da9 | 1795 | const char *ctxt_progname; |
35485da9 | 1796 | |
d1e5f2c7 DM |
1797 | int keep_intermediates = |
1798 | get_bool_option (GCC_JIT_BOOL_OPTION_KEEP_INTERMEDIATES); | |
35485da9 | 1799 | |
d2286af3 | 1800 | m_tempdir = new tempdir (get_logger (), keep_intermediates); |
d1e5f2c7 | 1801 | if (!m_tempdir->create ()) |
fdce7209 | 1802 | return; |
35485da9 DM |
1803 | |
1804 | /* Call into the rest of gcc. | |
1805 | For now, we have to assemble command-line options to pass into | |
1806 | toplev::main, so that they can be parsed. */ | |
1807 | ||
1808 | /* Pass in user-provided program name as argv0, if any, so that it | |
1809 | makes it into GCC's "progname" global, used in various diagnostics. */ | |
1810 | ctxt_progname = get_str_option (GCC_JIT_STR_OPTION_PROGNAME); | |
35485da9 | 1811 | |
c985705a DM |
1812 | if (!ctxt_progname) |
1813 | ctxt_progname = "libgccjit.so"; | |
1814 | ||
463366a0 DM |
1815 | auto_vec <recording::requested_dump> requested_dumps; |
1816 | m_recording_ctxt->get_all_requested_dumps (&requested_dumps); | |
1817 | ||
2cb844ce DM |
1818 | /* Acquire the JIT mutex and set "this" as the active playback ctxt. */ |
1819 | acquire_mutex (); | |
1820 | ||
463366a0 DM |
1821 | auto_argvec fake_args; |
1822 | make_fake_args (&fake_args, ctxt_progname, &requested_dumps); | |
8f50ee3c | 1823 | if (errors_occurred ()) |
2cb844ce DM |
1824 | { |
1825 | release_mutex (); | |
1826 | return; | |
1827 | } | |
38771e4e | 1828 | |
463366a0 | 1829 | /* This runs the compiler. */ |
afed3459 | 1830 | toplev toplev (get_timer (), /* external_timer */ |
6fc2d0f3 | 1831 | false); /* init_signals */ |
eb4c16eb DM |
1832 | enter_scope ("toplev::main"); |
1833 | if (get_logger ()) | |
1834 | for (unsigned i = 0; i < fake_args.length (); i++) | |
1835 | get_logger ()->log ("argv[%i]: %s", i, fake_args[i]); | |
8f50ee3c DM |
1836 | toplev.main (fake_args.length (), |
1837 | const_cast <char **> (fake_args.address ())); | |
eb4c16eb | 1838 | exit_scope ("toplev::main"); |
463366a0 DM |
1839 | |
1840 | /* Extracting dumps makes use of the gcc::dump_manager, hence we | |
1841 | need to do it between toplev::main (which creates the dump manager) | |
1842 | and toplev::finalize (which deletes it). */ | |
1843 | extract_any_requested_dumps (&requested_dumps); | |
1844 | ||
1845 | /* Clean up the compiler. */ | |
eb4c16eb | 1846 | enter_scope ("toplev::finalize"); |
35485da9 | 1847 | toplev.finalize (); |
eb4c16eb | 1848 | exit_scope ("toplev::finalize"); |
35485da9 | 1849 | |
38771e4e DM |
1850 | /* Ideally we would release the jit mutex here, but we can't yet since |
1851 | followup activities use timevars, which are global state. */ | |
35485da9 DM |
1852 | |
1853 | if (errors_occurred ()) | |
38771e4e DM |
1854 | { |
1855 | release_mutex (); | |
fdce7209 | 1856 | return; |
38771e4e | 1857 | } |
35485da9 DM |
1858 | |
1859 | if (get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_GENERATED_CODE)) | |
c6760a13 | 1860 | dump_generated_code (); |
35485da9 | 1861 | |
fdce7209 DM |
1862 | /* We now have a .s file. |
1863 | ||
1864 | Run any postprocessing steps. This will either convert the .s file to | |
1865 | a .so DSO, and load it in memory (playback::compile_to_memory), or | |
1866 | convert the .s file to the requested output format, and copy it to a | |
1867 | given file (playback::compile_to_file). */ | |
1868 | postprocess (ctxt_progname); | |
1869 | ||
1870 | release_mutex (); | |
1871 | } | |
1872 | ||
1873 | /* Implementation of class gcc::jit::playback::compile_to_memory, | |
1874 | a subclass of gcc::jit::playback::context. */ | |
1875 | ||
1876 | /* playback::compile_to_memory's trivial constructor. */ | |
1877 | ||
1878 | playback::compile_to_memory::compile_to_memory (recording::context *ctxt) : | |
1879 | playback::context (ctxt), | |
1880 | m_result (NULL) | |
1881 | { | |
1882 | JIT_LOG_SCOPE (get_logger ()); | |
1883 | } | |
1884 | ||
1885 | /* Implementation of the playback::context::process vfunc for compiling | |
1886 | to memory. | |
1887 | ||
1888 | Convert the .s file to a .so DSO, and load it in memory (via dlopen), | |
1889 | wrapping the result up as a jit::result and returning it. */ | |
1890 | ||
1891 | void | |
1892 | playback::compile_to_memory::postprocess (const char *ctxt_progname) | |
1893 | { | |
1894 | JIT_LOG_SCOPE (get_logger ()); | |
c6760a13 DM |
1895 | convert_to_dso (ctxt_progname); |
1896 | if (errors_occurred ()) | |
fdce7209 DM |
1897 | return; |
1898 | m_result = dlopen_built_dso (); | |
1899 | } | |
1900 | ||
1901 | /* Implementation of class gcc::jit::playback::compile_to_file, | |
1902 | a subclass of gcc::jit::playback::context. */ | |
1903 | ||
1904 | /* playback::compile_to_file's trivial constructor. */ | |
1905 | ||
1906 | playback::compile_to_file::compile_to_file (recording::context *ctxt, | |
1907 | enum gcc_jit_output_kind output_kind, | |
1908 | const char *output_path) : | |
1909 | playback::context (ctxt), | |
1910 | m_output_kind (output_kind), | |
1911 | m_output_path (output_path) | |
1912 | { | |
1913 | JIT_LOG_SCOPE (get_logger ()); | |
1914 | } | |
1915 | ||
1916 | /* Implementation of the playback::context::process vfunc for compiling | |
1917 | to a file. | |
1918 | ||
1919 | Either copy the .s file to the given destination (for | |
1920 | GCC_JIT_OUTPUT_KIND_ASSEMBLER), or invoke the driver to convert it | |
1921 | as necessary, copying the result. */ | |
1922 | ||
1923 | void | |
1924 | playback::compile_to_file::postprocess (const char *ctxt_progname) | |
1925 | { | |
1926 | JIT_LOG_SCOPE (get_logger ()); | |
1927 | ||
1928 | /* The driver takes different actions based on the filename, so | |
1929 | we provide a filename with an appropriate suffix for the | |
1930 | output kind, and then copy it up to the user-provided path, | |
1931 | rather than directly compiling it to the requested output path. */ | |
1932 | ||
1933 | switch (m_output_kind) | |
38771e4e | 1934 | { |
fdce7209 DM |
1935 | default: |
1936 | gcc_unreachable (); | |
1937 | ||
1938 | case GCC_JIT_OUTPUT_KIND_ASSEMBLER: | |
1939 | copy_file (get_tempdir ()->get_path_s_file (), | |
1940 | m_output_path); | |
199501ea | 1941 | /* The .s file is automatically unlinked by tempdir::~tempdir. */ |
fdce7209 DM |
1942 | break; |
1943 | ||
1944 | case GCC_JIT_OUTPUT_KIND_OBJECT_FILE: | |
1945 | { | |
1946 | char *tmp_o_path = ::concat (get_tempdir ()->get_path (), | |
1947 | "/fake.o", | |
1948 | NULL); | |
1949 | invoke_driver (ctxt_progname, | |
1950 | get_tempdir ()->get_path_s_file (), | |
1951 | tmp_o_path, | |
1952 | TV_ASSEMBLE, | |
1953 | false, /* bool shared, */ | |
1954 | false);/* bool run_linker */ | |
1955 | if (!errors_occurred ()) | |
199501ea DM |
1956 | { |
1957 | copy_file (tmp_o_path, | |
1958 | m_output_path); | |
1959 | get_tempdir ()->add_temp_file (tmp_o_path); | |
1960 | } | |
1961 | else | |
1962 | free (tmp_o_path); | |
fdce7209 DM |
1963 | } |
1964 | break; | |
1965 | ||
1966 | case GCC_JIT_OUTPUT_KIND_DYNAMIC_LIBRARY: | |
1967 | invoke_driver (ctxt_progname, | |
1968 | get_tempdir ()->get_path_s_file (), | |
1969 | get_tempdir ()->get_path_so_file (), | |
1970 | TV_ASSEMBLE, | |
1971 | true, /* bool shared, */ | |
1972 | true);/* bool run_linker */ | |
1973 | if (!errors_occurred ()) | |
1974 | copy_file (get_tempdir ()->get_path_so_file (), | |
1975 | m_output_path); | |
199501ea | 1976 | /* The .so file is automatically unlinked by tempdir::~tempdir. */ |
fdce7209 DM |
1977 | break; |
1978 | ||
1979 | case GCC_JIT_OUTPUT_KIND_EXECUTABLE: | |
1980 | { | |
1981 | char *tmp_exe_path = ::concat (get_tempdir ()->get_path (), | |
1982 | "/fake.exe", | |
1983 | NULL); | |
1984 | invoke_driver (ctxt_progname, | |
1985 | get_tempdir ()->get_path_s_file (), | |
1986 | tmp_exe_path, | |
1987 | TV_ASSEMBLE, | |
1988 | false, /* bool shared, */ | |
1989 | true);/* bool run_linker */ | |
1990 | if (!errors_occurred ()) | |
199501ea DM |
1991 | { |
1992 | copy_file (tmp_exe_path, | |
1993 | m_output_path); | |
1994 | get_tempdir ()->add_temp_file (tmp_exe_path); | |
1995 | } | |
1996 | else | |
1997 | free (tmp_exe_path); | |
fdce7209 DM |
1998 | } |
1999 | break; | |
2000 | ||
38771e4e | 2001 | } |
35485da9 | 2002 | |
fdce7209 | 2003 | } |
35485da9 | 2004 | |
fdce7209 DM |
2005 | /* Copy SRC_PATH to DST_PATH, preserving permission bits (in particular, |
2006 | the "executable" bits). | |
2007 | ||
2008 | Any errors that occur are reported on the context and hence count as | |
2009 | a failure of the compile. | |
2010 | ||
2011 | We can't in general hardlink or use "rename" from the tempdir since | |
2012 | it might be on a different filesystem to the destination. For example, | |
2013 | I get EXDEV: "Invalid cross-device link". */ | |
2014 | ||
2015 | void | |
2016 | playback::compile_to_file::copy_file (const char *src_path, | |
2017 | const char *dst_path) | |
2018 | { | |
2019 | JIT_LOG_SCOPE (get_logger ()); | |
2020 | if (get_logger ()) | |
2021 | { | |
2022 | get_logger ()->log ("src_path: %s", src_path); | |
2023 | get_logger ()->log ("dst_path: %s", dst_path); | |
2024 | } | |
2025 | ||
2026 | FILE *f_in = NULL; | |
2027 | FILE *f_out = NULL; | |
2028 | size_t total_sz_in = 0; | |
2029 | size_t total_sz_out = 0; | |
2030 | char buf[4096]; | |
2031 | size_t sz_in; | |
2032 | struct stat stat_buf; | |
2033 | ||
2034 | f_in = fopen (src_path, "rb"); | |
2035 | if (!f_in) | |
2036 | { | |
2037 | add_error (NULL, | |
2038 | "unable to open %s for reading: %s", | |
2039 | src_path, | |
2040 | xstrerror (errno)); | |
2041 | return; | |
2042 | } | |
38771e4e | 2043 | |
fdce7209 DM |
2044 | /* Use stat on the filedescriptor to get the mode, |
2045 | so that we can copy it over (in particular, the | |
2046 | "executable" bits). */ | |
2047 | if (-1 == fstat (fileno (f_in), &stat_buf)) | |
2048 | { | |
2049 | add_error (NULL, | |
2050 | "unable to fstat %s: %s", | |
2051 | src_path, | |
2052 | xstrerror (errno)); | |
2053 | fclose (f_in); | |
2054 | return; | |
2055 | } | |
2056 | ||
2057 | f_out = fopen (dst_path, "wb"); | |
2058 | if (!f_out) | |
2059 | { | |
2060 | add_error (NULL, | |
2061 | "unable to open %s for writing: %s", | |
2062 | dst_path, | |
2063 | xstrerror (errno)); | |
2064 | fclose (f_in); | |
2065 | return; | |
2066 | } | |
2067 | ||
2068 | while ( (sz_in = fread (buf, 1, sizeof (buf), f_in)) ) | |
2069 | { | |
2070 | total_sz_in += sz_in; | |
2071 | size_t sz_out_remaining = sz_in; | |
2072 | size_t sz_out_so_far = 0; | |
2073 | while (sz_out_remaining) | |
2074 | { | |
2075 | size_t sz_out = fwrite (buf + sz_out_so_far, | |
2076 | 1, | |
2077 | sz_out_remaining, | |
2078 | f_out); | |
2079 | gcc_assert (sz_out <= sz_out_remaining); | |
2080 | if (!sz_out) | |
2081 | { | |
2082 | add_error (NULL, | |
2083 | "error writing to %s: %s", | |
2084 | dst_path, | |
2085 | xstrerror (errno)); | |
2086 | fclose (f_in); | |
2087 | fclose (f_out); | |
2088 | return; | |
2089 | } | |
2090 | total_sz_out += sz_out; | |
2091 | sz_out_so_far += sz_out; | |
2092 | sz_out_remaining -= sz_out; | |
2093 | } | |
2094 | gcc_assert (sz_out_so_far == sz_in); | |
2095 | } | |
2096 | ||
2097 | if (!feof (f_in)) | |
2098 | add_error (NULL, | |
2099 | "error reading from %s: %s", | |
2100 | src_path, | |
2101 | xstrerror (errno)); | |
2102 | ||
2103 | fclose (f_in); | |
2104 | ||
2105 | gcc_assert (total_sz_in == total_sz_out); | |
2106 | if (get_logger ()) | |
2107 | get_logger ()->log ("total bytes copied: %ld", total_sz_out); | |
2108 | ||
2109 | /* Set the permissions of the copy to those of the original file, | |
2110 | in particular the "executable" bits. */ | |
2111 | if (-1 == fchmod (fileno (f_out), stat_buf.st_mode)) | |
2112 | add_error (NULL, | |
2113 | "error setting mode of %s: %s", | |
2114 | dst_path, | |
2115 | xstrerror (errno)); | |
2116 | ||
2117 | fclose (f_out); | |
35485da9 DM |
2118 | } |
2119 | ||
8f50ee3c DM |
2120 | /* Helper functions for gcc::jit::playback::context::compile. */ |
2121 | ||
38771e4e DM |
2122 | /* This mutex guards gcc::jit::recording::context::compile, so that only |
2123 | one thread can be accessing the bulk of GCC's state at once. */ | |
2124 | ||
2125 | static pthread_mutex_t jit_mutex = PTHREAD_MUTEX_INITIALIZER; | |
2126 | ||
2127 | /* Acquire jit_mutex and set "this" as the active playback ctxt. */ | |
2128 | ||
2129 | void | |
2130 | playback::context::acquire_mutex () | |
2131 | { | |
afed3459 DM |
2132 | auto_timevar tv (get_timer (), TV_JIT_ACQUIRING_MUTEX); |
2133 | ||
38771e4e | 2134 | /* Acquire the big GCC mutex. */ |
eb4c16eb | 2135 | JIT_LOG_SCOPE (get_logger ()); |
38771e4e DM |
2136 | pthread_mutex_lock (&jit_mutex); |
2137 | gcc_assert (NULL == active_playback_ctxt); | |
2138 | active_playback_ctxt = this; | |
2139 | } | |
2140 | ||
2141 | /* Release jit_mutex and clear the active playback ctxt. */ | |
2142 | ||
2143 | void | |
2144 | playback::context::release_mutex () | |
2145 | { | |
2146 | /* Release the big GCC mutex. */ | |
eb4c16eb | 2147 | JIT_LOG_SCOPE (get_logger ()); |
38771e4e DM |
2148 | gcc_assert (active_playback_ctxt == this); |
2149 | active_playback_ctxt = NULL; | |
2150 | pthread_mutex_unlock (&jit_mutex); | |
2151 | } | |
2152 | ||
2cb844ce DM |
2153 | /* Callback used by gcc::jit::playback::context::make_fake_args when |
2154 | invoking driver_get_configure_time_options. | |
2155 | Populate a vec <char * > with the configure-time options. */ | |
2156 | ||
2157 | static void | |
2158 | append_arg_from_driver (const char *option, void *user_data) | |
2159 | { | |
2160 | gcc_assert (option); | |
2161 | gcc_assert (user_data); | |
2162 | vec <char *> *argvec = static_cast <vec <char *> *> (user_data); | |
2163 | argvec->safe_push (concat ("-", option, NULL)); | |
2164 | } | |
2165 | ||
8f50ee3c DM |
2166 | /* Build a fake argv for toplev::main from the options set |
2167 | by the user on the context . */ | |
2168 | ||
2169 | void | |
2170 | playback::context:: | |
463366a0 DM |
2171 | make_fake_args (vec <char *> *argvec, |
2172 | const char *ctxt_progname, | |
2173 | vec <recording::requested_dump> *requested_dumps) | |
8f50ee3c | 2174 | { |
eb4c16eb DM |
2175 | JIT_LOG_SCOPE (get_logger ()); |
2176 | ||
463366a0 DM |
2177 | #define ADD_ARG(arg) argvec->safe_push (xstrdup (arg)) |
2178 | #define ADD_ARG_TAKE_OWNERSHIP(arg) argvec->safe_push (arg) | |
8f50ee3c DM |
2179 | |
2180 | ADD_ARG (ctxt_progname); | |
d1e5f2c7 | 2181 | ADD_ARG (get_path_c_file ()); |
8f50ee3c DM |
2182 | ADD_ARG ("-fPIC"); |
2183 | ||
2184 | /* Handle int options: */ | |
2185 | switch (get_int_option (GCC_JIT_INT_OPTION_OPTIMIZATION_LEVEL)) | |
2186 | { | |
2187 | default: | |
2188 | add_error (NULL, | |
2189 | "unrecognized optimization level: %i", | |
2190 | get_int_option (GCC_JIT_INT_OPTION_OPTIMIZATION_LEVEL)); | |
2191 | return; | |
2192 | ||
2193 | case 0: | |
2194 | ADD_ARG ("-O0"); | |
2195 | break; | |
2196 | ||
2197 | case 1: | |
2198 | ADD_ARG ("-O1"); | |
2199 | break; | |
2200 | ||
2201 | case 2: | |
2202 | ADD_ARG ("-O2"); | |
2203 | break; | |
2204 | ||
2205 | case 3: | |
2206 | ADD_ARG ("-O3"); | |
2207 | break; | |
2208 | } | |
2209 | /* What about -Os? */ | |
2210 | ||
2211 | /* Handle bool options: */ | |
2212 | if (get_bool_option (GCC_JIT_BOOL_OPTION_DEBUGINFO)) | |
2213 | ADD_ARG ("-g"); | |
2214 | ||
2215 | /* Suppress timing (and other) info. */ | |
2216 | if (!get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_SUMMARY)) | |
2217 | { | |
2218 | ADD_ARG ("-quiet"); | |
2219 | quiet_flag = 1; | |
2220 | } | |
2221 | ||
2222 | /* Aggressively garbage-collect, to shake out bugs: */ | |
2223 | if (get_bool_option (GCC_JIT_BOOL_OPTION_SELFCHECK_GC)) | |
2224 | { | |
2225 | ADD_ARG ("--param"); | |
2226 | ADD_ARG ("ggc-min-expand=0"); | |
2227 | ADD_ARG ("--param"); | |
2228 | ADD_ARG ("ggc-min-heapsize=0"); | |
2229 | } | |
2230 | ||
2231 | if (get_bool_option (GCC_JIT_BOOL_OPTION_DUMP_EVERYTHING)) | |
2232 | { | |
2233 | ADD_ARG ("-fdump-tree-all"); | |
2234 | ADD_ARG ("-fdump-rtl-all"); | |
2235 | ADD_ARG ("-fdump-ipa-all"); | |
2236 | } | |
463366a0 DM |
2237 | |
2238 | /* Add "-fdump-" options for any calls to | |
2239 | gcc_jit_context_enable_dump. */ | |
2240 | { | |
2241 | int i; | |
2242 | recording::requested_dump *d; | |
2243 | FOR_EACH_VEC_ELT (*requested_dumps, i, d) | |
2244 | { | |
2245 | char *arg = concat ("-fdump-", d->m_dumpname, NULL); | |
2246 | ADD_ARG_TAKE_OWNERSHIP (arg); | |
2247 | } | |
2248 | } | |
2249 | ||
2cb844ce DM |
2250 | /* PR jit/64810: Add any target-specific default options |
2251 | from OPTION_DEFAULT_SPECS, normally provided by the driver | |
2252 | in the non-jit case. | |
2253 | ||
2254 | The target-specific code can define OPTION_DEFAULT_SPECS: | |
2255 | default command options in the form of spec macros for the | |
2256 | driver to expand (). | |
2257 | ||
2258 | For cc1 etc, the driver processes OPTION_DEFAULT_SPECS and, | |
2259 | if not overriden, injects the defaults as extra arguments to | |
2260 | cc1 etc. | |
2261 | For the jit case, we need to add these arguments here. The | |
2262 | input format (using the specs language) means that we have to run | |
2263 | part of the driver code here (driver_get_configure_time_options). | |
2264 | ||
2265 | To avoid running the spec-expansion code every time, we just do | |
2266 | it the first time (via a function-static flag), saving the result | |
2267 | into a function-static vec. | |
2268 | This flag and vec are global state (i.e. per-process). | |
2269 | They are guarded by the jit mutex. */ | |
2270 | { | |
2271 | static bool have_configure_time_options = false; | |
2272 | static vec <char *> configure_time_options; | |
2273 | ||
2274 | if (have_configure_time_options) | |
2275 | log ("reusing cached configure-time options"); | |
2276 | else | |
2277 | { | |
2278 | have_configure_time_options = true; | |
2279 | log ("getting configure-time options from driver"); | |
2280 | driver_get_configure_time_options (append_arg_from_driver, | |
2281 | &configure_time_options); | |
2282 | } | |
2283 | ||
2284 | int i; | |
2285 | char *opt; | |
2286 | ||
2287 | if (get_logger ()) | |
2288 | FOR_EACH_VEC_ELT (configure_time_options, i, opt) | |
2289 | log ("configure_time_options[%i]: %s", i, opt); | |
2290 | ||
2291 | /* configure_time_options should now contain the expanded options | |
2292 | from OPTION_DEFAULT_SPECS (if any). */ | |
2293 | FOR_EACH_VEC_ELT (configure_time_options, i, opt) | |
2294 | { | |
2295 | gcc_assert (opt); | |
2296 | gcc_assert (opt[0] == '-'); | |
2297 | ADD_ARG (opt); | |
2298 | } | |
2299 | } | |
2300 | ||
afed3459 DM |
2301 | if (get_timer ()) |
2302 | ADD_ARG ("-ftime-report"); | |
2303 | ||
fa22c20d DM |
2304 | /* Add any user-provided extra options, starting with any from |
2305 | parent contexts. */ | |
2306 | m_recording_ctxt->append_command_line_options (argvec); | |
2307 | ||
8f50ee3c | 2308 | #undef ADD_ARG |
463366a0 DM |
2309 | #undef ADD_ARG_TAKE_OWNERSHIP |
2310 | } | |
2311 | ||
2312 | /* The second half of the implementation of gcc_jit_context_enable_dump. | |
2313 | Iterate through the requested dumps, reading the underlying files | |
2314 | into heap-allocated buffers, writing pointers to the buffers into | |
2315 | the char ** pointers provided by client code. | |
2316 | Client code is responsible for calling free on the results. */ | |
2317 | ||
2318 | void | |
2319 | playback::context:: | |
2320 | extract_any_requested_dumps (vec <recording::requested_dump> *requested_dumps) | |
2321 | { | |
eb4c16eb DM |
2322 | JIT_LOG_SCOPE (get_logger ()); |
2323 | ||
463366a0 DM |
2324 | int i; |
2325 | recording::requested_dump *d; | |
2326 | FOR_EACH_VEC_ELT (*requested_dumps, i, d) | |
2327 | { | |
2328 | dump_file_info *dfi; | |
2329 | char *filename; | |
2330 | char *content; | |
2331 | ||
2332 | dfi = g->get_dumps ()->get_dump_file_info_by_switch (d->m_dumpname); | |
2333 | if (!dfi) | |
2334 | { | |
2335 | add_error (NULL, "unrecognized dump: %s", d->m_dumpname); | |
2336 | continue; | |
2337 | } | |
2338 | ||
2339 | filename = g->get_dumps ()->get_dump_file_name (dfi); | |
2340 | content = read_dump_file (filename); | |
2341 | *(d->m_out_ptr) = content; | |
199501ea | 2342 | m_tempdir->add_temp_file (filename); |
463366a0 DM |
2343 | } |
2344 | } | |
2345 | ||
2346 | /* Helper function for playback::context::extract_any_requested_dumps | |
2347 | (itself for use in implementation of gcc_jit_context_enable_dump). | |
2348 | ||
2349 | Attempt to read the complete file at the given path, returning the | |
2350 | bytes found there as a buffer. | |
2351 | The caller is responsible for calling free on the result. | |
2352 | Errors will be reported on the context, and lead to NULL being | |
2353 | returned; an out-of-memory error will terminate the process. */ | |
2354 | ||
2355 | char * | |
2356 | playback::context::read_dump_file (const char *path) | |
2357 | { | |
2358 | char *result = NULL; | |
2359 | size_t total_sz = 0; | |
2360 | char buf[4096]; | |
2361 | size_t sz; | |
2362 | FILE *f_in; | |
2363 | ||
2364 | f_in = fopen (path, "r"); | |
2365 | if (!f_in) | |
2366 | { | |
2367 | add_error (NULL, "unable to open %s for reading", path); | |
2368 | return NULL; | |
2369 | } | |
2370 | ||
2371 | while ( (sz = fread (buf, 1, sizeof (buf), f_in)) ) | |
2372 | { | |
2373 | size_t old_total_sz = total_sz; | |
2374 | total_sz += sz; | |
2375 | result = reinterpret_cast <char *> (xrealloc (result, total_sz + 1)); | |
2376 | memcpy (result + old_total_sz, buf, sz); | |
2377 | } | |
2378 | ||
2379 | if (!feof (f_in)) | |
2380 | { | |
2381 | add_error (NULL, "error reading from %s", path); | |
2382 | free (result); | |
1c35cc2c | 2383 | fclose (f_in); |
463366a0 DM |
2384 | return NULL; |
2385 | } | |
2386 | ||
2387 | fclose (f_in); | |
2388 | ||
2389 | if (result) | |
2390 | { | |
2391 | result[total_sz] = '\0'; | |
2392 | return result; | |
2393 | } | |
2394 | else | |
2395 | return xstrdup (""); | |
8f50ee3c DM |
2396 | } |
2397 | ||
c6760a13 DM |
2398 | /* Part of playback::context::compile (). |
2399 | ||
2400 | We have a .s file; we want a .so file. | |
2401 | We could reuse parts of gcc/gcc.c to do this. | |
2402 | For now, just use the driver binary from the install, as | |
2403 | named in gcc-driver-name.h | |
2404 | e.g. "x86_64-unknown-linux-gnu-gcc-5.0.0". */ | |
2405 | ||
2406 | void | |
2407 | playback::context:: | |
2408 | convert_to_dso (const char *ctxt_progname) | |
fdce7209 DM |
2409 | { |
2410 | JIT_LOG_SCOPE (get_logger ()); | |
2411 | ||
2412 | invoke_driver (ctxt_progname, | |
2413 | m_tempdir->get_path_s_file (), | |
2414 | m_tempdir->get_path_so_file (), | |
2415 | TV_ASSEMBLE, | |
2416 | true, /* bool shared, */ | |
2417 | true);/* bool run_linker */ | |
2418 | } | |
2419 | ||
9376dd63 DM |
2420 | static const char * const gcc_driver_name = GCC_DRIVER_NAME; |
2421 | ||
fdce7209 DM |
2422 | void |
2423 | playback::context:: | |
2424 | invoke_driver (const char *ctxt_progname, | |
2425 | const char *input_file, | |
2426 | const char *output_file, | |
2427 | timevar_id_t tv_id, | |
2428 | bool shared, | |
2429 | bool run_linker) | |
c6760a13 | 2430 | { |
eb4c16eb | 2431 | JIT_LOG_SCOPE (get_logger ()); |
9376dd63 DM |
2432 | |
2433 | bool embedded_driver | |
2434 | = !get_inner_bool_option (INNER_BOOL_OPTION_USE_EXTERNAL_DRIVER); | |
2435 | ||
c6760a13 DM |
2436 | /* Currently this lumps together both assembling and linking into |
2437 | TV_ASSEMBLE. */ | |
afed3459 | 2438 | auto_timevar assemble_timevar (get_timer (), tv_id); |
eb3982c1 DM |
2439 | auto_argvec argvec; |
2440 | #define ADD_ARG(arg) argvec.safe_push (xstrdup (arg)) | |
c6760a13 | 2441 | |
c168eab9 | 2442 | ADD_ARG (gcc_driver_name); |
fdce7209 | 2443 | |
eb3982c1 DM |
2444 | add_multilib_driver_arguments (&argvec); |
2445 | ||
fdce7209 DM |
2446 | if (shared) |
2447 | ADD_ARG ("-shared"); | |
2448 | ||
2449 | if (!run_linker) | |
2450 | ADD_ARG ("-c"); | |
2451 | ||
2452 | ADD_ARG (input_file); | |
c168eab9 | 2453 | ADD_ARG ("-o"); |
fdce7209 | 2454 | ADD_ARG (output_file); |
c6760a13 DM |
2455 | |
2456 | /* Don't use the linker plugin. | |
2457 | If running with just a "make" and not a "make install", then we'd | |
2458 | run into | |
2459 | "fatal error: -fuse-linker-plugin, but liblto_plugin.so not found" | |
2460 | libto_plugin is a .la at build time, with it becoming installed with | |
2461 | ".so" suffix: i.e. it doesn't exist with a .so suffix until install | |
2462 | time. */ | |
c168eab9 | 2463 | ADD_ARG ("-fno-use-linker-plugin"); |
c6760a13 | 2464 | |
baf3fbad DM |
2465 | #if defined (DARWIN_X86) || defined (DARWIN_PPC) |
2466 | /* OS X's linker defaults to treating undefined symbols as errors. | |
2467 | If the context has any imported functions or globals they will be | |
2468 | undefined until the .so is dynamically-linked into the process. | |
2469 | Ensure that the driver passes in "-undefined dynamic_lookup" to the | |
2470 | linker. */ | |
2471 | ADD_ARG ("-Wl,-undefined,dynamic_lookup"); | |
2472 | #endif | |
2473 | ||
9376dd63 DM |
2474 | if (0) |
2475 | ADD_ARG ("-v"); | |
2476 | ||
2477 | #undef ADD_ARG | |
c6760a13 DM |
2478 | |
2479 | /* pex_one's error-handling requires pname to be non-NULL. */ | |
2480 | gcc_assert (ctxt_progname); | |
2481 | ||
eb4c16eb DM |
2482 | if (get_logger ()) |
2483 | for (unsigned i = 0; i < argvec.length (); i++) | |
2484 | get_logger ()->log ("argv[%i]: %s", i, argvec[i]); | |
2485 | ||
9376dd63 DM |
2486 | if (embedded_driver) |
2487 | invoke_embedded_driver (&argvec); | |
2488 | else | |
2489 | invoke_external_driver (ctxt_progname, &argvec); | |
2490 | } | |
2491 | ||
2492 | void | |
2493 | playback::context:: | |
2494 | invoke_embedded_driver (const vec <char *> *argvec) | |
2495 | { | |
2496 | JIT_LOG_SCOPE (get_logger ()); | |
2497 | driver d (true, /* can_finalize */ | |
2498 | false); /* debug */ | |
2499 | int result = d.main (argvec->length (), | |
2500 | const_cast <char **> (argvec->address ())); | |
2501 | d.finalize (); | |
2502 | if (result) | |
2503 | add_error (NULL, "error invoking gcc driver"); | |
2504 | } | |
2505 | ||
2506 | void | |
2507 | playback::context:: | |
2508 | invoke_external_driver (const char *ctxt_progname, | |
2509 | vec <char *> *argvec) | |
2510 | { | |
2511 | JIT_LOG_SCOPE (get_logger ()); | |
2512 | const char *errmsg; | |
2513 | int exit_status = 0; | |
2514 | int err = 0; | |
2515 | ||
2516 | /* pex argv arrays are NULL-terminated. */ | |
2517 | argvec->safe_push (NULL); | |
2518 | ||
c6760a13 DM |
2519 | errmsg = pex_one (PEX_SEARCH, /* int flags, */ |
2520 | gcc_driver_name, | |
9376dd63 | 2521 | const_cast <char *const *> (argvec->address ()), |
c6760a13 DM |
2522 | ctxt_progname, /* const char *pname */ |
2523 | NULL, /* const char *outname */ | |
2524 | NULL, /* const char *errname */ | |
2525 | &exit_status, /* int *status */ | |
2526 | &err); /* int *err*/ | |
2527 | if (errmsg) | |
2528 | { | |
2529 | add_error (NULL, "error invoking gcc driver: %s", errmsg); | |
2530 | return; | |
2531 | } | |
2532 | ||
2533 | /* pex_one can return a NULL errmsg when the executable wasn't | |
2534 | found (or doesn't exist), so trap these cases also. */ | |
2535 | if (exit_status || err) | |
2536 | { | |
2537 | add_error (NULL, | |
2538 | "error invoking gcc driver: exit_status: %i err: %i", | |
2539 | exit_status, err); | |
2540 | add_error (NULL, | |
2541 | "whilst attempting to run a driver named: %s", | |
2542 | gcc_driver_name); | |
2543 | add_error (NULL, | |
2544 | "PATH was: %s", | |
2545 | getenv ("PATH")); | |
2546 | return; | |
2547 | } | |
2548 | } | |
2549 | ||
eb3982c1 DM |
2550 | /* Extract the target-specific MULTILIB_DEFAULTS to |
2551 | multilib_defaults_raw for use by | |
2552 | playback::context::add_multilib_driver_arguments (). */ | |
2553 | ||
2554 | #ifndef MULTILIB_DEFAULTS | |
2555 | #define MULTILIB_DEFAULTS { "" } | |
2556 | #endif | |
2557 | ||
2558 | static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS; | |
2559 | ||
2560 | /* Helper function for playback::context::invoke_driver (). | |
2561 | ||
2562 | 32-bit and 64-bit multilib peer builds of libgccjit.so may share | |
2563 | a driver binary. We need to pass in options to the shared driver | |
2564 | to get the appropriate assembler/linker options for this multilib | |
2565 | peer. */ | |
2566 | ||
2567 | void | |
2568 | playback::context:: | |
2569 | add_multilib_driver_arguments (vec <char *> *argvec) | |
2570 | { | |
2571 | JIT_LOG_SCOPE (get_logger ()); | |
2572 | ||
2573 | /* Add copies of the arguments in multilib_defaults_raw to argvec, | |
2574 | prepending each with a "-". */ | |
2575 | for (size_t i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++) | |
2576 | if (multilib_defaults_raw[i][0]) | |
2577 | argvec->safe_push (concat ("-", multilib_defaults_raw[i], NULL)); | |
2578 | } | |
2579 | ||
38f4f641 DM |
2580 | /* Dynamically-link the built DSO file into this process, using dlopen. |
2581 | Wrap it up within a jit::result *, and return that. | |
2582 | Return NULL if any errors occur, reporting them on this context. */ | |
2583 | ||
2584 | result * | |
2585 | playback::context:: | |
2586 | dlopen_built_dso () | |
2587 | { | |
eb4c16eb | 2588 | JIT_LOG_SCOPE (get_logger ()); |
afed3459 | 2589 | auto_timevar load_timevar (get_timer (), TV_LOAD); |
38f4f641 DM |
2590 | void *handle = NULL; |
2591 | const char *error = NULL; | |
2592 | result *result_obj = NULL; | |
2593 | ||
2594 | /* Clear any existing error. */ | |
2595 | dlerror (); | |
2596 | ||
d1e5f2c7 DM |
2597 | handle = dlopen (m_tempdir->get_path_so_file (), |
2598 | RTLD_NOW | RTLD_LOCAL); | |
38f4f641 DM |
2599 | if ((error = dlerror()) != NULL) { |
2600 | add_error (NULL, "%s", error); | |
2601 | } | |
2602 | if (handle) | |
d2286af3 DM |
2603 | { |
2604 | /* We've successfully dlopened the result; create a | |
2605 | jit::result object to wrap it. | |
2606 | ||
2607 | We're done with the tempdir for now, but if the user | |
2608 | has requested debugging, the user's debugger might not | |
2609 | be capable of dealing with the .so file being unlinked | |
2610 | immediately, so keep it around until after the result | |
2611 | is released. We do this by handing over ownership of | |
2612 | the jit::tempdir to the result. See PR jit/64206. */ | |
2613 | tempdir *handover_tempdir; | |
2614 | if (get_bool_option (GCC_JIT_BOOL_OPTION_DEBUGINFO)) | |
2615 | { | |
2616 | handover_tempdir = m_tempdir; | |
2617 | m_tempdir = NULL; | |
2618 | /* The tempdir will eventually be cleaned up in the | |
2619 | jit::result's dtor. */ | |
2620 | log ("GCC_JIT_BOOL_OPTION_DEBUGINFO was set:" | |
2621 | " handing over tempdir to jit::result"); | |
2622 | } | |
2623 | else | |
2624 | { | |
2625 | handover_tempdir = NULL; | |
2626 | /* ... and retain ownership of m_tempdir so we clean it | |
2627 | up it the playback::context's dtor. */ | |
2628 | log ("GCC_JIT_BOOL_OPTION_DEBUGINFO was not set:" | |
2629 | " retaining ownership of tempdir"); | |
2630 | } | |
2631 | ||
2632 | result_obj = new result (get_logger (), handle, handover_tempdir); | |
2633 | } | |
38f4f641 DM |
2634 | else |
2635 | result_obj = NULL; | |
2636 | ||
2637 | return result_obj; | |
2638 | } | |
2639 | ||
35485da9 DM |
2640 | /* Top-level hook for playing back a recording context. |
2641 | ||
2642 | This plays back m_recording_ctxt, and, if no errors | |
2643 | occurred builds statement lists for and then postprocesses | |
2644 | every function in the result. */ | |
2645 | ||
2646 | void | |
2647 | playback::context:: | |
2648 | replay () | |
2649 | { | |
eb4c16eb | 2650 | JIT_LOG_SCOPE (get_logger ()); |
35485da9 DM |
2651 | /* Adapted from c-common.c:c_common_nodes_and_builtins. */ |
2652 | tree array_domain_type = build_index_type (size_int (200)); | |
2653 | m_char_array_type_node | |
2654 | = build_array_type (char_type_node, array_domain_type); | |
2655 | ||
2656 | m_const_char_ptr | |
2657 | = build_pointer_type (build_qualified_type (char_type_node, | |
2658 | TYPE_QUAL_CONST)); | |
2659 | ||
2660 | /* Replay the recorded events: */ | |
2661 | timevar_push (TV_JIT_REPLAY); | |
2662 | ||
2663 | m_recording_ctxt->replay_into (this); | |
2664 | ||
2665 | /* Clean away the temporary references from recording objects | |
2666 | to playback objects. We have to do this now since the | |
2667 | latter are GC-allocated, but the former don't mark these | |
2668 | refs. Hence we must stop using them before the GC can run. */ | |
2669 | m_recording_ctxt->disassociate_from_playback (); | |
2670 | ||
eeafb319 DM |
2671 | /* The builtins_manager, if any, is associated with the recording::context |
2672 | and might be reused for future compiles on other playback::contexts, | |
2673 | but its m_attributes array is not GTY-labeled and hence will become | |
2674 | nonsense if the GC runs. Purge this state. */ | |
2675 | builtins_manager *bm = get_builtins_manager (); | |
2676 | if (bm) | |
2677 | bm->finish_playback (); | |
2678 | ||
35485da9 DM |
2679 | timevar_pop (TV_JIT_REPLAY); |
2680 | ||
2681 | if (!errors_occurred ()) | |
2682 | { | |
2683 | int i; | |
2684 | function *func; | |
2685 | ||
2686 | /* No GC can happen yet; process the cached source locations. */ | |
2687 | handle_locations (); | |
2688 | ||
2689 | /* We've now created tree nodes for the stmts in the various blocks | |
2690 | in each function, but we haven't built each function's single stmt | |
2691 | list yet. Do so now. */ | |
2692 | FOR_EACH_VEC_ELT (m_functions, i, func) | |
2693 | func->build_stmt_list (); | |
2694 | ||
2695 | /* No GC can have happened yet. */ | |
2696 | ||
2697 | /* Postprocess the functions. This could trigger GC. */ | |
2698 | FOR_EACH_VEC_ELT (m_functions, i, func) | |
2699 | { | |
2700 | gcc_assert (func); | |
2701 | func->postprocess (); | |
2702 | } | |
2703 | } | |
2704 | } | |
2705 | ||
2706 | /* Dump the generated .s file to stderr. */ | |
2707 | ||
2708 | void | |
2709 | playback::context:: | |
2710 | dump_generated_code () | |
2711 | { | |
eb4c16eb | 2712 | JIT_LOG_SCOPE (get_logger ()); |
35485da9 DM |
2713 | char buf[4096]; |
2714 | size_t sz; | |
d1e5f2c7 | 2715 | FILE *f_in = fopen (get_path_s_file (), "r"); |
35485da9 DM |
2716 | if (!f_in) |
2717 | return; | |
2718 | ||
2719 | while ( (sz = fread (buf, 1, sizeof (buf), f_in)) ) | |
2720 | fwrite (buf, 1, sz, stderr); | |
2721 | ||
2722 | fclose (f_in); | |
2723 | } | |
2724 | ||
d1e5f2c7 DM |
2725 | /* Get the supposed path of the notional "fake.c" file within the |
2726 | tempdir. This file doesn't exist, but the rest of the compiler | |
2727 | needs a name. */ | |
2728 | ||
2729 | const char * | |
2730 | playback::context:: | |
2731 | get_path_c_file () const | |
2732 | { | |
2733 | return m_tempdir->get_path_c_file (); | |
2734 | } | |
2735 | ||
2736 | /* Get the path of the assembler output file "fake.s" file within the | |
2737 | tempdir. */ | |
2738 | ||
2739 | const char * | |
2740 | playback::context:: | |
2741 | get_path_s_file () const | |
2742 | { | |
2743 | return m_tempdir->get_path_s_file (); | |
2744 | } | |
2745 | ||
2746 | /* Get the path of the DSO object file "fake.so" file within the | |
2747 | tempdir. */ | |
2748 | ||
2749 | const char * | |
2750 | playback::context:: | |
2751 | get_path_so_file () const | |
2752 | { | |
2753 | return m_tempdir->get_path_so_file (); | |
2754 | } | |
2755 | ||
35485da9 DM |
2756 | /* qsort comparator for comparing pairs of playback::source_line *, |
2757 | ordering them by line number. */ | |
2758 | ||
2759 | static int | |
2760 | line_comparator (const void *lhs, const void *rhs) | |
2761 | { | |
2762 | const playback::source_line *line_lhs = \ | |
2763 | *static_cast<const playback::source_line * const*> (lhs); | |
2764 | const playback::source_line *line_rhs = \ | |
2765 | *static_cast<const playback::source_line * const*> (rhs); | |
2766 | return line_lhs->get_line_num () - line_rhs->get_line_num (); | |
2767 | } | |
2768 | ||
2769 | /* qsort comparator for comparing pairs of playback::location *, | |
2770 | ordering them by column number. */ | |
2771 | ||
2772 | static int | |
2773 | location_comparator (const void *lhs, const void *rhs) | |
2774 | { | |
2775 | const playback::location *loc_lhs = \ | |
2776 | *static_cast<const playback::location * const *> (lhs); | |
2777 | const playback::location *loc_rhs = \ | |
2778 | *static_cast<const playback::location * const *> (rhs); | |
2779 | return loc_lhs->get_column_num () - loc_rhs->get_column_num (); | |
2780 | } | |
2781 | ||
2782 | /* Our API allows locations to be created in arbitrary orders, but the | |
2783 | linemap API requires locations to be created in ascending order | |
2784 | as if we were tokenizing files. | |
2785 | ||
026c3cfd | 2786 | This hook sorts all of the locations that have been created, and |
35485da9 DM |
2787 | calls into the linemap API, creating linemap entries in sorted order |
2788 | for our locations. */ | |
2789 | ||
2790 | void | |
2791 | playback::context:: | |
2792 | handle_locations () | |
2793 | { | |
2794 | /* Create the source code locations, following the ordering rules | |
2795 | imposed by the linemap API. | |
2796 | ||
2797 | line_table is a global. */ | |
eb4c16eb | 2798 | JIT_LOG_SCOPE (get_logger ()); |
35485da9 DM |
2799 | int i; |
2800 | source_file *file; | |
2801 | ||
2802 | FOR_EACH_VEC_ELT (m_source_files, i, file) | |
2803 | { | |
2804 | linemap_add (line_table, LC_ENTER, false, file->get_filename (), 0); | |
2805 | ||
2806 | /* Sort lines by ascending line numbers. */ | |
2807 | file->m_source_lines.qsort (&line_comparator); | |
2808 | ||
2809 | int j; | |
2810 | source_line *line; | |
2811 | FOR_EACH_VEC_ELT (file->m_source_lines, j, line) | |
2812 | { | |
2813 | int k; | |
2814 | location *loc; | |
2815 | ||
2816 | /* Sort locations in line by ascending column numbers. */ | |
2817 | line->m_locations.qsort (&location_comparator); | |
2818 | ||
2819 | /* Determine maximum column within this line. */ | |
2820 | gcc_assert (line->m_locations.length () > 0); | |
2821 | location *final_column = | |
2822 | line->m_locations[line->m_locations.length () - 1]; | |
2823 | int max_col = final_column->get_column_num (); | |
2824 | ||
2825 | linemap_line_start (line_table, line->get_line_num (), max_col); | |
2826 | FOR_EACH_VEC_ELT (line->m_locations, k, loc) | |
2827 | { | |
2828 | loc->m_srcloc = \ | |
2829 | linemap_position_for_column (line_table, loc->get_column_num ()); | |
2830 | } | |
2831 | } | |
2832 | ||
2833 | linemap_add (line_table, LC_LEAVE, false, NULL, 0); | |
2834 | } | |
2835 | ||
2836 | /* line_table should now be populated; every playback::location should | |
2837 | now have an m_srcloc. */ | |
2838 | ||
2839 | /* Now assign them to tree nodes as appropriate. */ | |
2840 | std::pair<tree, location *> *cached_location; | |
2841 | ||
2842 | FOR_EACH_VEC_ELT (m_cached_locations, i, cached_location) | |
2843 | { | |
2844 | tree t = cached_location->first; | |
2845 | source_location srcloc = cached_location->second->m_srcloc; | |
2846 | ||
2847 | /* This covers expressions: */ | |
2848 | if (CAN_HAVE_LOCATION_P (t)) | |
2849 | SET_EXPR_LOCATION (t, srcloc); | |
2850 | else if (CODE_CONTAINS_STRUCT(TREE_CODE(t), TS_DECL_MINIMAL)) | |
2851 | DECL_SOURCE_LOCATION (t) = srcloc; | |
2852 | else | |
2853 | { | |
2854 | /* Don't know how to set location on this node. */ | |
2855 | } | |
2856 | } | |
2857 | } | |
2858 | ||
2859 | /* We handle errors on a playback::context by adding them to the | |
2860 | corresponding recording::context. */ | |
2861 | ||
2862 | void | |
2863 | playback::context:: | |
2864 | add_error (location *loc, const char *fmt, ...) | |
2865 | { | |
2866 | va_list ap; | |
2867 | va_start (ap, fmt); | |
2868 | m_recording_ctxt->add_error_va (loc ? loc->get_recording_loc () : NULL, | |
2869 | fmt, ap); | |
2870 | va_end (ap); | |
2871 | } | |
2872 | ||
2873 | /* We handle errors on a playback::context by adding them to the | |
2874 | corresponding recording::context. */ | |
2875 | ||
2876 | void | |
2877 | playback::context:: | |
2878 | add_error_va (location *loc, const char *fmt, va_list ap) | |
2879 | { | |
2880 | m_recording_ctxt->add_error_va (loc ? loc->get_recording_loc () : NULL, | |
2881 | fmt, ap); | |
2882 | } | |
2883 | ||
6b5423a5 DM |
2884 | /* Report a diagnostic up to the jit context as an error, |
2885 | so that the compilation is treated as a failure. | |
2886 | For now, any kind of diagnostic is treated as an error by the jit | |
2887 | API. */ | |
2888 | ||
2889 | void | |
2890 | playback::context:: | |
2891 | add_diagnostic (struct diagnostic_context *diag_context, | |
2892 | struct diagnostic_info *diagnostic) | |
2893 | { | |
2894 | /* At this point the text has been formatted into the pretty-printer's | |
2895 | output buffer. */ | |
2896 | pretty_printer *pp = diag_context->printer; | |
2897 | const char *text = pp_formatted_text (pp); | |
2898 | ||
2899 | /* Get location information (if any) from the diagnostic. | |
2900 | The recording::context::add_error[_va] methods require a | |
2901 | recording::location. We can't lookup the playback::location | |
2902 | from the file/line/column since any playback location instances | |
2903 | may have been garbage-collected away by now, so instead we create | |
2904 | another recording::location directly. */ | |
2905 | location_t gcc_loc = diagnostic_location (diagnostic); | |
2906 | recording::location *rec_loc = NULL; | |
2907 | if (gcc_loc) | |
2908 | { | |
2909 | expanded_location exploc = expand_location (gcc_loc); | |
2910 | if (exploc.file) | |
2911 | rec_loc = m_recording_ctxt->new_location (exploc.file, | |
2912 | exploc.line, | |
2913 | exploc.column, | |
2914 | false); | |
2915 | } | |
2916 | ||
2917 | m_recording_ctxt->add_error (rec_loc, "%s", text); | |
2918 | pp_clear_output_area (pp); | |
2919 | } | |
2920 | ||
35485da9 DM |
2921 | /* Dealing with the linemap API. */ |
2922 | ||
2923 | /* Construct a playback::location for a recording::location, if it | |
2924 | doesn't exist already. */ | |
2925 | ||
2926 | playback::location * | |
2927 | playback::context:: | |
2928 | new_location (recording::location *rloc, | |
2929 | const char *filename, | |
2930 | int line, | |
2931 | int column) | |
2932 | { | |
2933 | /* Get the source_file for filename, creating if necessary. */ | |
2934 | source_file *src_file = get_source_file (filename); | |
2935 | /* Likewise for the line within the file. */ | |
2936 | source_line *src_line = src_file->get_source_line (line); | |
2937 | /* Likewise for the column within the line. */ | |
2938 | location *loc = src_line->get_location (rloc, column); | |
2939 | return loc; | |
2940 | } | |
2941 | ||
2942 | /* Deferred setting of the location for a given tree, by adding the | |
2943 | (tree, playback::location) pair to a list of deferred associations. | |
2944 | We will actually set the location on the tree later on once | |
2945 | the source_location for the playback::location exists. */ | |
2946 | ||
2947 | void | |
2948 | playback::context:: | |
2949 | set_tree_location (tree t, location *loc) | |
2950 | { | |
2951 | gcc_assert (loc); | |
2952 | m_cached_locations.safe_push (std::make_pair (t, loc)); | |
2953 | } | |
2954 | ||
2955 | ||
2956 | /* Construct a playback::source_file for the given source | |
2957 | filename, if it doesn't exist already. */ | |
2958 | ||
2959 | playback::source_file * | |
2960 | playback::context:: | |
2961 | get_source_file (const char *filename) | |
2962 | { | |
2963 | /* Locate the file. | |
2964 | For simplicitly, this is currently a linear search. | |
2965 | Replace with a hash if this shows up in the profile. */ | |
2966 | int i; | |
2967 | source_file *file; | |
2968 | tree ident_filename = get_identifier (filename); | |
2969 | ||
2970 | FOR_EACH_VEC_ELT (m_source_files, i, file) | |
2971 | if (file->filename_as_tree () == ident_filename) | |
2972 | return file; | |
2973 | ||
2974 | /* Not found. */ | |
2975 | file = new source_file (ident_filename); | |
2976 | m_source_files.safe_push (file); | |
2977 | return file; | |
2978 | } | |
2979 | ||
2980 | /* Constructor for gcc::jit::playback::source_file. */ | |
2981 | ||
2982 | playback::source_file::source_file (tree filename) : | |
2983 | m_source_lines (), | |
2984 | m_filename (filename) | |
2985 | { | |
2986 | } | |
2987 | ||
b957b2e0 DM |
2988 | /* Don't leak vec's internal buffer (in non-GC heap) when we are |
2989 | GC-ed. */ | |
2990 | ||
2991 | void | |
2992 | playback::source_file::finalizer () | |
2993 | { | |
2994 | m_source_lines.release (); | |
2995 | } | |
2996 | ||
35485da9 DM |
2997 | /* Construct a playback::source_line for the given line |
2998 | within this source file, if one doesn't exist already. */ | |
2999 | ||
3000 | playback::source_line * | |
3001 | playback::source_file:: | |
3002 | get_source_line (int line_num) | |
3003 | { | |
3004 | /* Locate the line. | |
3005 | For simplicitly, this is currently a linear search. | |
3006 | Replace with a hash if this shows up in the profile. */ | |
3007 | int i; | |
3008 | source_line *line; | |
3009 | ||
3010 | FOR_EACH_VEC_ELT (m_source_lines, i, line) | |
3011 | if (line->get_line_num () == line_num) | |
3012 | return line; | |
3013 | ||
3014 | /* Not found. */ | |
3015 | line = new source_line (this, line_num); | |
3016 | m_source_lines.safe_push (line); | |
3017 | return line; | |
3018 | } | |
3019 | ||
3020 | /* Constructor for gcc::jit::playback::source_line. */ | |
3021 | ||
3022 | playback::source_line::source_line (source_file *file, int line_num) : | |
3023 | m_locations (), | |
3024 | m_source_file (file), | |
3025 | m_line_num (line_num) | |
3026 | { | |
3027 | } | |
b957b2e0 DM |
3028 | |
3029 | /* Don't leak vec's internal buffer (in non-GC heap) when we are | |
3030 | GC-ed. */ | |
3031 | ||
3032 | void | |
3033 | playback::source_line::finalizer () | |
3034 | { | |
3035 | m_locations.release (); | |
3036 | } | |
35485da9 DM |
3037 | |
3038 | /* Construct a playback::location for the given column | |
3039 | within this line of a specific source file, if one doesn't exist | |
3040 | already. */ | |
3041 | ||
3042 | playback::location * | |
3043 | playback::source_line:: | |
3044 | get_location (recording::location *rloc, int column_num) | |
3045 | { | |
3046 | int i; | |
3047 | location *loc; | |
3048 | ||
3049 | /* Another linear search that probably should be a hash table. */ | |
3050 | FOR_EACH_VEC_ELT (m_locations, i, loc) | |
3051 | if (loc->get_column_num () == column_num) | |
3052 | return loc; | |
3053 | ||
3054 | /* Not found. */ | |
3055 | loc = new location (rloc, this, column_num); | |
3056 | m_locations.safe_push (loc); | |
3057 | return loc; | |
3058 | } | |
3059 | ||
3060 | /* Constructor for gcc::jit::playback::location. */ | |
3061 | ||
3062 | playback::location::location (recording::location *loc, | |
3063 | source_line *line, | |
3064 | int column_num) : | |
3065 | m_srcloc (UNKNOWN_LOCATION), | |
3066 | m_recording_loc (loc), | |
3067 | m_line (line), | |
3068 | m_column_num(column_num) | |
3069 | { | |
3070 | } | |
3071 | ||
3072 | /* The active gcc::jit::playback::context instance. This is a singleton, | |
3073 | guarded by jit_mutex. */ | |
3074 | ||
3075 | playback::context *active_playback_ctxt; | |
3076 | ||
3077 | } // namespace gcc::jit | |
3078 | ||
3079 | } // namespace gcc |