1 /* GCC instrumentation plugin for ThreadSanitizer.
2 Copyright (C) 2011-2017 Free Software Foundation, Inc.
3 Contributed by Dmitry Vyukov <dvyukov@google.com>
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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/>. */
24 #include "coretypes.h"
30 #include "tree-pass.h"
33 #include "fold-const.h"
35 #include "gimple-iterator.h"
36 #include "gimplify-me.h"
38 #include "tree-iterator.h"
39 #include "tree-ssa-propagate.h"
40 #include "tree-ssa-loop-ivopts.h"
46 /* Number of instrumented memory accesses in the current function. */
48 /* Builds the following decl
49 void __tsan_read/writeX (void *addr); */
52 get_memory_access_decl (bool is_write
, unsigned size
)
54 enum built_in_function fcode
;
57 fcode
= is_write
? BUILT_IN_TSAN_WRITE1
58 : BUILT_IN_TSAN_READ1
;
60 fcode
= is_write
? BUILT_IN_TSAN_WRITE2
61 : BUILT_IN_TSAN_READ2
;
63 fcode
= is_write
? BUILT_IN_TSAN_WRITE4
64 : BUILT_IN_TSAN_READ4
;
66 fcode
= is_write
? BUILT_IN_TSAN_WRITE8
67 : BUILT_IN_TSAN_READ8
;
69 fcode
= is_write
? BUILT_IN_TSAN_WRITE16
70 : BUILT_IN_TSAN_READ16
;
72 return builtin_decl_implicit (fcode
);
75 /* Check as to whether EXPR refers to a store to vptr. */
78 is_vptr_store (gimple
*stmt
, tree expr
, bool is_write
)
81 && gimple_assign_single_p (stmt
)
82 && TREE_CODE (expr
) == COMPONENT_REF
)
84 tree field
= TREE_OPERAND (expr
, 1);
85 if (TREE_CODE (field
) == FIELD_DECL
86 && DECL_VIRTUAL_P (field
))
87 return gimple_assign_rhs1 (stmt
);
92 /* Instruments EXPR if needed. If any instrumentation is inserted,
96 instrument_expr (gimple_stmt_iterator gsi
, tree expr
, bool is_write
)
98 tree base
, rhs
, expr_ptr
, builtin_decl
;
106 size
= int_size_in_bytes (TREE_TYPE (expr
));
110 HOST_WIDE_INT bitsize
, bitpos
;
113 int unsignedp
, reversep
, volatilep
= 0;
114 base
= get_inner_reference (expr
, &bitsize
, &bitpos
, &offset
, &mode
,
115 &unsignedp
, &reversep
, &volatilep
);
117 /* No need to instrument accesses to decls that don't escape,
118 they can't escape to other threads then. */
119 if (DECL_P (base
) && !is_global_var (base
))
121 struct pt_solution pt
;
122 memset (&pt
, 0, sizeof (pt
));
124 pt
.ipa_escaped
= flag_ipa_pta
!= 0;
125 if (!pt_solution_includes (&pt
, base
))
127 if (!may_be_aliased (base
))
131 if (TREE_READONLY (base
) || (VAR_P (base
) && DECL_HARD_REGISTER (base
)))
134 stmt
= gsi_stmt (gsi
);
135 loc
= gimple_location (stmt
);
136 rhs
= is_vptr_store (stmt
, expr
, is_write
);
138 if ((TREE_CODE (expr
) == COMPONENT_REF
139 && DECL_BIT_FIELD_TYPE (TREE_OPERAND (expr
, 1)))
140 || TREE_CODE (expr
) == BIT_FIELD_REF
)
142 base
= TREE_OPERAND (expr
, 0);
143 if (TREE_CODE (expr
) == COMPONENT_REF
)
145 expr
= TREE_OPERAND (expr
, 1);
146 if (is_write
&& DECL_BIT_FIELD_REPRESENTATIVE (expr
))
147 expr
= DECL_BIT_FIELD_REPRESENTATIVE (expr
);
148 if (!tree_fits_uhwi_p (DECL_FIELD_OFFSET (expr
))
149 || !tree_fits_uhwi_p (DECL_FIELD_BIT_OFFSET (expr
))
150 || !tree_fits_uhwi_p (DECL_SIZE (expr
)))
152 bitpos
= tree_to_uhwi (DECL_FIELD_OFFSET (expr
)) * BITS_PER_UNIT
153 + tree_to_uhwi (DECL_FIELD_BIT_OFFSET (expr
));
154 bitsize
= tree_to_uhwi (DECL_SIZE (expr
));
158 if (!tree_fits_uhwi_p (TREE_OPERAND (expr
, 2))
159 || !tree_fits_uhwi_p (TREE_OPERAND (expr
, 1)))
161 bitpos
= tree_to_uhwi (TREE_OPERAND (expr
, 2));
162 bitsize
= tree_to_uhwi (TREE_OPERAND (expr
, 1));
164 if (bitpos
< 0 || bitsize
<= 0)
166 size
= (bitpos
% BITS_PER_UNIT
+ bitsize
+ BITS_PER_UNIT
- 1)
168 if (may_be_nonaddressable_p (base
))
170 align
= get_object_alignment (base
);
171 if (align
< BITS_PER_UNIT
)
173 bitpos
= bitpos
& ~(BITS_PER_UNIT
- 1);
174 if ((align
- 1) & bitpos
)
176 align
= (align
- 1) & bitpos
;
177 align
= least_bit_hwi (align
);
179 expr
= build_fold_addr_expr (unshare_expr (base
));
180 expr
= build2 (MEM_REF
, char_type_node
, expr
,
181 build_int_cst (TREE_TYPE (expr
), bitpos
/ BITS_PER_UNIT
));
182 expr_ptr
= build_fold_addr_expr (expr
);
186 if (may_be_nonaddressable_p (expr
))
188 align
= get_object_alignment (expr
);
189 if (align
< BITS_PER_UNIT
)
191 expr_ptr
= build_fold_addr_expr (unshare_expr (expr
));
193 expr_ptr
= force_gimple_operand (expr_ptr
, &seq
, true, NULL_TREE
);
194 if ((size
& (size
- 1)) != 0 || size
> 16
195 || align
< MIN (size
, 8) * BITS_PER_UNIT
)
197 builtin_decl
= builtin_decl_implicit (is_write
198 ? BUILT_IN_TSAN_WRITE_RANGE
199 : BUILT_IN_TSAN_READ_RANGE
);
200 g
= gimple_build_call (builtin_decl
, 2, expr_ptr
, size_int (size
));
202 else if (rhs
== NULL
)
203 g
= gimple_build_call (get_memory_access_decl (is_write
, size
),
207 builtin_decl
= builtin_decl_implicit (BUILT_IN_TSAN_VPTR_UPDATE
);
208 g
= gimple_build_call (builtin_decl
, 2, expr_ptr
, unshare_expr (rhs
));
210 gimple_set_location (g
, loc
);
211 gimple_seq_add_stmt_without_update (&seq
, g
);
212 /* Instrumentation for assignment of a function result
213 must be inserted after the call. Instrumentation for
214 reads of function arguments must be inserted before the call.
215 That's because the call can contain synchronization. */
216 if (is_gimple_call (stmt
) && is_write
)
218 /* If the call can throw, it must be the last stmt in
219 a basic block, so the instrumented stmts need to be
220 inserted in successor bbs. */
221 if (is_ctrl_altering_stmt (stmt
))
226 e
= find_fallthru_edge (bb
->succs
);
228 gsi_insert_seq_on_edge_immediate (e
, seq
);
231 gsi_insert_seq_after (&gsi
, seq
, GSI_NEW_STMT
);
234 gsi_insert_seq_before (&gsi
, seq
, GSI_SAME_STMT
);
239 /* Actions for sync/atomic builtin transformations. */
240 enum tsan_atomic_action
242 check_last
, add_seq_cst
, add_acquire
, weak_cas
, strong_cas
,
243 bool_cas
, val_cas
, lock_release
, fetch_op
, fetch_op_seq_cst
,
244 bool_clear
, bool_test_and_set
247 /* Table how to map sync/atomic builtins to their corresponding
249 static const struct tsan_map_atomic
251 enum built_in_function fcode
, tsan_fcode
;
252 enum tsan_atomic_action action
;
254 } tsan_atomic_table
[] =
256 #define TRANSFORM(fcode, tsan_fcode, action, code) \
257 { BUILT_IN_##fcode, BUILT_IN_##tsan_fcode, action, code }
258 #define CHECK_LAST(fcode, tsan_fcode) \
259 TRANSFORM (fcode, tsan_fcode, check_last, ERROR_MARK)
260 #define ADD_SEQ_CST(fcode, tsan_fcode) \
261 TRANSFORM (fcode, tsan_fcode, add_seq_cst, ERROR_MARK)
262 #define ADD_ACQUIRE(fcode, tsan_fcode) \
263 TRANSFORM (fcode, tsan_fcode, add_acquire, ERROR_MARK)
264 #define WEAK_CAS(fcode, tsan_fcode) \
265 TRANSFORM (fcode, tsan_fcode, weak_cas, ERROR_MARK)
266 #define STRONG_CAS(fcode, tsan_fcode) \
267 TRANSFORM (fcode, tsan_fcode, strong_cas, ERROR_MARK)
268 #define BOOL_CAS(fcode, tsan_fcode) \
269 TRANSFORM (fcode, tsan_fcode, bool_cas, ERROR_MARK)
270 #define VAL_CAS(fcode, tsan_fcode) \
271 TRANSFORM (fcode, tsan_fcode, val_cas, ERROR_MARK)
272 #define LOCK_RELEASE(fcode, tsan_fcode) \
273 TRANSFORM (fcode, tsan_fcode, lock_release, ERROR_MARK)
274 #define FETCH_OP(fcode, tsan_fcode, code) \
275 TRANSFORM (fcode, tsan_fcode, fetch_op, code)
276 #define FETCH_OPS(fcode, tsan_fcode, code) \
277 TRANSFORM (fcode, tsan_fcode, fetch_op_seq_cst, code)
278 #define BOOL_CLEAR(fcode, tsan_fcode) \
279 TRANSFORM (fcode, tsan_fcode, bool_clear, ERROR_MARK)
280 #define BOOL_TEST_AND_SET(fcode, tsan_fcode) \
281 TRANSFORM (fcode, tsan_fcode, bool_test_and_set, ERROR_MARK)
283 CHECK_LAST (ATOMIC_LOAD_1
, TSAN_ATOMIC8_LOAD
),
284 CHECK_LAST (ATOMIC_LOAD_2
, TSAN_ATOMIC16_LOAD
),
285 CHECK_LAST (ATOMIC_LOAD_4
, TSAN_ATOMIC32_LOAD
),
286 CHECK_LAST (ATOMIC_LOAD_8
, TSAN_ATOMIC64_LOAD
),
287 CHECK_LAST (ATOMIC_LOAD_16
, TSAN_ATOMIC128_LOAD
),
288 CHECK_LAST (ATOMIC_STORE_1
, TSAN_ATOMIC8_STORE
),
289 CHECK_LAST (ATOMIC_STORE_2
, TSAN_ATOMIC16_STORE
),
290 CHECK_LAST (ATOMIC_STORE_4
, TSAN_ATOMIC32_STORE
),
291 CHECK_LAST (ATOMIC_STORE_8
, TSAN_ATOMIC64_STORE
),
292 CHECK_LAST (ATOMIC_STORE_16
, TSAN_ATOMIC128_STORE
),
293 CHECK_LAST (ATOMIC_EXCHANGE_1
, TSAN_ATOMIC8_EXCHANGE
),
294 CHECK_LAST (ATOMIC_EXCHANGE_2
, TSAN_ATOMIC16_EXCHANGE
),
295 CHECK_LAST (ATOMIC_EXCHANGE_4
, TSAN_ATOMIC32_EXCHANGE
),
296 CHECK_LAST (ATOMIC_EXCHANGE_8
, TSAN_ATOMIC64_EXCHANGE
),
297 CHECK_LAST (ATOMIC_EXCHANGE_16
, TSAN_ATOMIC128_EXCHANGE
),
298 CHECK_LAST (ATOMIC_FETCH_ADD_1
, TSAN_ATOMIC8_FETCH_ADD
),
299 CHECK_LAST (ATOMIC_FETCH_ADD_2
, TSAN_ATOMIC16_FETCH_ADD
),
300 CHECK_LAST (ATOMIC_FETCH_ADD_4
, TSAN_ATOMIC32_FETCH_ADD
),
301 CHECK_LAST (ATOMIC_FETCH_ADD_8
, TSAN_ATOMIC64_FETCH_ADD
),
302 CHECK_LAST (ATOMIC_FETCH_ADD_16
, TSAN_ATOMIC128_FETCH_ADD
),
303 CHECK_LAST (ATOMIC_FETCH_SUB_1
, TSAN_ATOMIC8_FETCH_SUB
),
304 CHECK_LAST (ATOMIC_FETCH_SUB_2
, TSAN_ATOMIC16_FETCH_SUB
),
305 CHECK_LAST (ATOMIC_FETCH_SUB_4
, TSAN_ATOMIC32_FETCH_SUB
),
306 CHECK_LAST (ATOMIC_FETCH_SUB_8
, TSAN_ATOMIC64_FETCH_SUB
),
307 CHECK_LAST (ATOMIC_FETCH_SUB_16
, TSAN_ATOMIC128_FETCH_SUB
),
308 CHECK_LAST (ATOMIC_FETCH_AND_1
, TSAN_ATOMIC8_FETCH_AND
),
309 CHECK_LAST (ATOMIC_FETCH_AND_2
, TSAN_ATOMIC16_FETCH_AND
),
310 CHECK_LAST (ATOMIC_FETCH_AND_4
, TSAN_ATOMIC32_FETCH_AND
),
311 CHECK_LAST (ATOMIC_FETCH_AND_8
, TSAN_ATOMIC64_FETCH_AND
),
312 CHECK_LAST (ATOMIC_FETCH_AND_16
, TSAN_ATOMIC128_FETCH_AND
),
313 CHECK_LAST (ATOMIC_FETCH_OR_1
, TSAN_ATOMIC8_FETCH_OR
),
314 CHECK_LAST (ATOMIC_FETCH_OR_2
, TSAN_ATOMIC16_FETCH_OR
),
315 CHECK_LAST (ATOMIC_FETCH_OR_4
, TSAN_ATOMIC32_FETCH_OR
),
316 CHECK_LAST (ATOMIC_FETCH_OR_8
, TSAN_ATOMIC64_FETCH_OR
),
317 CHECK_LAST (ATOMIC_FETCH_OR_16
, TSAN_ATOMIC128_FETCH_OR
),
318 CHECK_LAST (ATOMIC_FETCH_XOR_1
, TSAN_ATOMIC8_FETCH_XOR
),
319 CHECK_LAST (ATOMIC_FETCH_XOR_2
, TSAN_ATOMIC16_FETCH_XOR
),
320 CHECK_LAST (ATOMIC_FETCH_XOR_4
, TSAN_ATOMIC32_FETCH_XOR
),
321 CHECK_LAST (ATOMIC_FETCH_XOR_8
, TSAN_ATOMIC64_FETCH_XOR
),
322 CHECK_LAST (ATOMIC_FETCH_XOR_16
, TSAN_ATOMIC128_FETCH_XOR
),
323 CHECK_LAST (ATOMIC_FETCH_NAND_1
, TSAN_ATOMIC8_FETCH_NAND
),
324 CHECK_LAST (ATOMIC_FETCH_NAND_2
, TSAN_ATOMIC16_FETCH_NAND
),
325 CHECK_LAST (ATOMIC_FETCH_NAND_4
, TSAN_ATOMIC32_FETCH_NAND
),
326 CHECK_LAST (ATOMIC_FETCH_NAND_8
, TSAN_ATOMIC64_FETCH_NAND
),
327 CHECK_LAST (ATOMIC_FETCH_NAND_16
, TSAN_ATOMIC128_FETCH_NAND
),
329 CHECK_LAST (ATOMIC_THREAD_FENCE
, TSAN_ATOMIC_THREAD_FENCE
),
330 CHECK_LAST (ATOMIC_SIGNAL_FENCE
, TSAN_ATOMIC_SIGNAL_FENCE
),
332 FETCH_OP (ATOMIC_ADD_FETCH_1
, TSAN_ATOMIC8_FETCH_ADD
, PLUS_EXPR
),
333 FETCH_OP (ATOMIC_ADD_FETCH_2
, TSAN_ATOMIC16_FETCH_ADD
, PLUS_EXPR
),
334 FETCH_OP (ATOMIC_ADD_FETCH_4
, TSAN_ATOMIC32_FETCH_ADD
, PLUS_EXPR
),
335 FETCH_OP (ATOMIC_ADD_FETCH_8
, TSAN_ATOMIC64_FETCH_ADD
, PLUS_EXPR
),
336 FETCH_OP (ATOMIC_ADD_FETCH_16
, TSAN_ATOMIC128_FETCH_ADD
, PLUS_EXPR
),
337 FETCH_OP (ATOMIC_SUB_FETCH_1
, TSAN_ATOMIC8_FETCH_SUB
, MINUS_EXPR
),
338 FETCH_OP (ATOMIC_SUB_FETCH_2
, TSAN_ATOMIC16_FETCH_SUB
, MINUS_EXPR
),
339 FETCH_OP (ATOMIC_SUB_FETCH_4
, TSAN_ATOMIC32_FETCH_SUB
, MINUS_EXPR
),
340 FETCH_OP (ATOMIC_SUB_FETCH_8
, TSAN_ATOMIC64_FETCH_SUB
, MINUS_EXPR
),
341 FETCH_OP (ATOMIC_SUB_FETCH_16
, TSAN_ATOMIC128_FETCH_SUB
, MINUS_EXPR
),
342 FETCH_OP (ATOMIC_AND_FETCH_1
, TSAN_ATOMIC8_FETCH_AND
, BIT_AND_EXPR
),
343 FETCH_OP (ATOMIC_AND_FETCH_2
, TSAN_ATOMIC16_FETCH_AND
, BIT_AND_EXPR
),
344 FETCH_OP (ATOMIC_AND_FETCH_4
, TSAN_ATOMIC32_FETCH_AND
, BIT_AND_EXPR
),
345 FETCH_OP (ATOMIC_AND_FETCH_8
, TSAN_ATOMIC64_FETCH_AND
, BIT_AND_EXPR
),
346 FETCH_OP (ATOMIC_AND_FETCH_16
, TSAN_ATOMIC128_FETCH_AND
, BIT_AND_EXPR
),
347 FETCH_OP (ATOMIC_OR_FETCH_1
, TSAN_ATOMIC8_FETCH_OR
, BIT_IOR_EXPR
),
348 FETCH_OP (ATOMIC_OR_FETCH_2
, TSAN_ATOMIC16_FETCH_OR
, BIT_IOR_EXPR
),
349 FETCH_OP (ATOMIC_OR_FETCH_4
, TSAN_ATOMIC32_FETCH_OR
, BIT_IOR_EXPR
),
350 FETCH_OP (ATOMIC_OR_FETCH_8
, TSAN_ATOMIC64_FETCH_OR
, BIT_IOR_EXPR
),
351 FETCH_OP (ATOMIC_OR_FETCH_16
, TSAN_ATOMIC128_FETCH_OR
, BIT_IOR_EXPR
),
352 FETCH_OP (ATOMIC_XOR_FETCH_1
, TSAN_ATOMIC8_FETCH_XOR
, BIT_XOR_EXPR
),
353 FETCH_OP (ATOMIC_XOR_FETCH_2
, TSAN_ATOMIC16_FETCH_XOR
, BIT_XOR_EXPR
),
354 FETCH_OP (ATOMIC_XOR_FETCH_4
, TSAN_ATOMIC32_FETCH_XOR
, BIT_XOR_EXPR
),
355 FETCH_OP (ATOMIC_XOR_FETCH_8
, TSAN_ATOMIC64_FETCH_XOR
, BIT_XOR_EXPR
),
356 FETCH_OP (ATOMIC_XOR_FETCH_16
, TSAN_ATOMIC128_FETCH_XOR
, BIT_XOR_EXPR
),
357 FETCH_OP (ATOMIC_NAND_FETCH_1
, TSAN_ATOMIC8_FETCH_NAND
, BIT_NOT_EXPR
),
358 FETCH_OP (ATOMIC_NAND_FETCH_2
, TSAN_ATOMIC16_FETCH_NAND
, BIT_NOT_EXPR
),
359 FETCH_OP (ATOMIC_NAND_FETCH_4
, TSAN_ATOMIC32_FETCH_NAND
, BIT_NOT_EXPR
),
360 FETCH_OP (ATOMIC_NAND_FETCH_8
, TSAN_ATOMIC64_FETCH_NAND
, BIT_NOT_EXPR
),
361 FETCH_OP (ATOMIC_NAND_FETCH_16
, TSAN_ATOMIC128_FETCH_NAND
, BIT_NOT_EXPR
),
363 ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_1
, TSAN_ATOMIC8_EXCHANGE
),
364 ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_2
, TSAN_ATOMIC16_EXCHANGE
),
365 ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_4
, TSAN_ATOMIC32_EXCHANGE
),
366 ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_8
, TSAN_ATOMIC64_EXCHANGE
),
367 ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_16
, TSAN_ATOMIC128_EXCHANGE
),
369 ADD_SEQ_CST (SYNC_FETCH_AND_ADD_1
, TSAN_ATOMIC8_FETCH_ADD
),
370 ADD_SEQ_CST (SYNC_FETCH_AND_ADD_2
, TSAN_ATOMIC16_FETCH_ADD
),
371 ADD_SEQ_CST (SYNC_FETCH_AND_ADD_4
, TSAN_ATOMIC32_FETCH_ADD
),
372 ADD_SEQ_CST (SYNC_FETCH_AND_ADD_8
, TSAN_ATOMIC64_FETCH_ADD
),
373 ADD_SEQ_CST (SYNC_FETCH_AND_ADD_16
, TSAN_ATOMIC128_FETCH_ADD
),
374 ADD_SEQ_CST (SYNC_FETCH_AND_SUB_1
, TSAN_ATOMIC8_FETCH_SUB
),
375 ADD_SEQ_CST (SYNC_FETCH_AND_SUB_2
, TSAN_ATOMIC16_FETCH_SUB
),
376 ADD_SEQ_CST (SYNC_FETCH_AND_SUB_4
, TSAN_ATOMIC32_FETCH_SUB
),
377 ADD_SEQ_CST (SYNC_FETCH_AND_SUB_8
, TSAN_ATOMIC64_FETCH_SUB
),
378 ADD_SEQ_CST (SYNC_FETCH_AND_SUB_16
, TSAN_ATOMIC128_FETCH_SUB
),
379 ADD_SEQ_CST (SYNC_FETCH_AND_AND_1
, TSAN_ATOMIC8_FETCH_AND
),
380 ADD_SEQ_CST (SYNC_FETCH_AND_AND_2
, TSAN_ATOMIC16_FETCH_AND
),
381 ADD_SEQ_CST (SYNC_FETCH_AND_AND_4
, TSAN_ATOMIC32_FETCH_AND
),
382 ADD_SEQ_CST (SYNC_FETCH_AND_AND_8
, TSAN_ATOMIC64_FETCH_AND
),
383 ADD_SEQ_CST (SYNC_FETCH_AND_AND_16
, TSAN_ATOMIC128_FETCH_AND
),
384 ADD_SEQ_CST (SYNC_FETCH_AND_OR_1
, TSAN_ATOMIC8_FETCH_OR
),
385 ADD_SEQ_CST (SYNC_FETCH_AND_OR_2
, TSAN_ATOMIC16_FETCH_OR
),
386 ADD_SEQ_CST (SYNC_FETCH_AND_OR_4
, TSAN_ATOMIC32_FETCH_OR
),
387 ADD_SEQ_CST (SYNC_FETCH_AND_OR_8
, TSAN_ATOMIC64_FETCH_OR
),
388 ADD_SEQ_CST (SYNC_FETCH_AND_OR_16
, TSAN_ATOMIC128_FETCH_OR
),
389 ADD_SEQ_CST (SYNC_FETCH_AND_XOR_1
, TSAN_ATOMIC8_FETCH_XOR
),
390 ADD_SEQ_CST (SYNC_FETCH_AND_XOR_2
, TSAN_ATOMIC16_FETCH_XOR
),
391 ADD_SEQ_CST (SYNC_FETCH_AND_XOR_4
, TSAN_ATOMIC32_FETCH_XOR
),
392 ADD_SEQ_CST (SYNC_FETCH_AND_XOR_8
, TSAN_ATOMIC64_FETCH_XOR
),
393 ADD_SEQ_CST (SYNC_FETCH_AND_XOR_16
, TSAN_ATOMIC128_FETCH_XOR
),
394 ADD_SEQ_CST (SYNC_FETCH_AND_NAND_1
, TSAN_ATOMIC8_FETCH_NAND
),
395 ADD_SEQ_CST (SYNC_FETCH_AND_NAND_2
, TSAN_ATOMIC16_FETCH_NAND
),
396 ADD_SEQ_CST (SYNC_FETCH_AND_NAND_4
, TSAN_ATOMIC32_FETCH_NAND
),
397 ADD_SEQ_CST (SYNC_FETCH_AND_NAND_8
, TSAN_ATOMIC64_FETCH_NAND
),
398 ADD_SEQ_CST (SYNC_FETCH_AND_NAND_16
, TSAN_ATOMIC128_FETCH_NAND
),
400 ADD_SEQ_CST (SYNC_SYNCHRONIZE
, TSAN_ATOMIC_THREAD_FENCE
),
402 FETCH_OPS (SYNC_ADD_AND_FETCH_1
, TSAN_ATOMIC8_FETCH_ADD
, PLUS_EXPR
),
403 FETCH_OPS (SYNC_ADD_AND_FETCH_2
, TSAN_ATOMIC16_FETCH_ADD
, PLUS_EXPR
),
404 FETCH_OPS (SYNC_ADD_AND_FETCH_4
, TSAN_ATOMIC32_FETCH_ADD
, PLUS_EXPR
),
405 FETCH_OPS (SYNC_ADD_AND_FETCH_8
, TSAN_ATOMIC64_FETCH_ADD
, PLUS_EXPR
),
406 FETCH_OPS (SYNC_ADD_AND_FETCH_16
, TSAN_ATOMIC128_FETCH_ADD
, PLUS_EXPR
),
407 FETCH_OPS (SYNC_SUB_AND_FETCH_1
, TSAN_ATOMIC8_FETCH_SUB
, MINUS_EXPR
),
408 FETCH_OPS (SYNC_SUB_AND_FETCH_2
, TSAN_ATOMIC16_FETCH_SUB
, MINUS_EXPR
),
409 FETCH_OPS (SYNC_SUB_AND_FETCH_4
, TSAN_ATOMIC32_FETCH_SUB
, MINUS_EXPR
),
410 FETCH_OPS (SYNC_SUB_AND_FETCH_8
, TSAN_ATOMIC64_FETCH_SUB
, MINUS_EXPR
),
411 FETCH_OPS (SYNC_SUB_AND_FETCH_16
, TSAN_ATOMIC128_FETCH_SUB
, MINUS_EXPR
),
412 FETCH_OPS (SYNC_AND_AND_FETCH_1
, TSAN_ATOMIC8_FETCH_AND
, BIT_AND_EXPR
),
413 FETCH_OPS (SYNC_AND_AND_FETCH_2
, TSAN_ATOMIC16_FETCH_AND
, BIT_AND_EXPR
),
414 FETCH_OPS (SYNC_AND_AND_FETCH_4
, TSAN_ATOMIC32_FETCH_AND
, BIT_AND_EXPR
),
415 FETCH_OPS (SYNC_AND_AND_FETCH_8
, TSAN_ATOMIC64_FETCH_AND
, BIT_AND_EXPR
),
416 FETCH_OPS (SYNC_AND_AND_FETCH_16
, TSAN_ATOMIC128_FETCH_AND
, BIT_AND_EXPR
),
417 FETCH_OPS (SYNC_OR_AND_FETCH_1
, TSAN_ATOMIC8_FETCH_OR
, BIT_IOR_EXPR
),
418 FETCH_OPS (SYNC_OR_AND_FETCH_2
, TSAN_ATOMIC16_FETCH_OR
, BIT_IOR_EXPR
),
419 FETCH_OPS (SYNC_OR_AND_FETCH_4
, TSAN_ATOMIC32_FETCH_OR
, BIT_IOR_EXPR
),
420 FETCH_OPS (SYNC_OR_AND_FETCH_8
, TSAN_ATOMIC64_FETCH_OR
, BIT_IOR_EXPR
),
421 FETCH_OPS (SYNC_OR_AND_FETCH_16
, TSAN_ATOMIC128_FETCH_OR
, BIT_IOR_EXPR
),
422 FETCH_OPS (SYNC_XOR_AND_FETCH_1
, TSAN_ATOMIC8_FETCH_XOR
, BIT_XOR_EXPR
),
423 FETCH_OPS (SYNC_XOR_AND_FETCH_2
, TSAN_ATOMIC16_FETCH_XOR
, BIT_XOR_EXPR
),
424 FETCH_OPS (SYNC_XOR_AND_FETCH_4
, TSAN_ATOMIC32_FETCH_XOR
, BIT_XOR_EXPR
),
425 FETCH_OPS (SYNC_XOR_AND_FETCH_8
, TSAN_ATOMIC64_FETCH_XOR
, BIT_XOR_EXPR
),
426 FETCH_OPS (SYNC_XOR_AND_FETCH_16
, TSAN_ATOMIC128_FETCH_XOR
, BIT_XOR_EXPR
),
427 FETCH_OPS (SYNC_NAND_AND_FETCH_1
, TSAN_ATOMIC8_FETCH_NAND
, BIT_NOT_EXPR
),
428 FETCH_OPS (SYNC_NAND_AND_FETCH_2
, TSAN_ATOMIC16_FETCH_NAND
, BIT_NOT_EXPR
),
429 FETCH_OPS (SYNC_NAND_AND_FETCH_4
, TSAN_ATOMIC32_FETCH_NAND
, BIT_NOT_EXPR
),
430 FETCH_OPS (SYNC_NAND_AND_FETCH_8
, TSAN_ATOMIC64_FETCH_NAND
, BIT_NOT_EXPR
),
431 FETCH_OPS (SYNC_NAND_AND_FETCH_16
, TSAN_ATOMIC128_FETCH_NAND
, BIT_NOT_EXPR
),
433 WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_1
, TSAN_ATOMIC8_COMPARE_EXCHANGE_WEAK
),
434 WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_2
, TSAN_ATOMIC16_COMPARE_EXCHANGE_WEAK
),
435 WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_4
, TSAN_ATOMIC32_COMPARE_EXCHANGE_WEAK
),
436 WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_8
, TSAN_ATOMIC64_COMPARE_EXCHANGE_WEAK
),
437 WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_16
, TSAN_ATOMIC128_COMPARE_EXCHANGE_WEAK
),
439 STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_1
, TSAN_ATOMIC8_COMPARE_EXCHANGE_STRONG
),
440 STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_2
,
441 TSAN_ATOMIC16_COMPARE_EXCHANGE_STRONG
),
442 STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_4
,
443 TSAN_ATOMIC32_COMPARE_EXCHANGE_STRONG
),
444 STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_8
,
445 TSAN_ATOMIC64_COMPARE_EXCHANGE_STRONG
),
446 STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_16
,
447 TSAN_ATOMIC128_COMPARE_EXCHANGE_STRONG
),
449 BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_1
,
450 TSAN_ATOMIC8_COMPARE_EXCHANGE_STRONG
),
451 BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_2
,
452 TSAN_ATOMIC16_COMPARE_EXCHANGE_STRONG
),
453 BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_4
,
454 TSAN_ATOMIC32_COMPARE_EXCHANGE_STRONG
),
455 BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_8
,
456 TSAN_ATOMIC64_COMPARE_EXCHANGE_STRONG
),
457 BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_16
,
458 TSAN_ATOMIC128_COMPARE_EXCHANGE_STRONG
),
460 VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_1
, TSAN_ATOMIC8_COMPARE_EXCHANGE_STRONG
),
461 VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_2
, TSAN_ATOMIC16_COMPARE_EXCHANGE_STRONG
),
462 VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_4
, TSAN_ATOMIC32_COMPARE_EXCHANGE_STRONG
),
463 VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_8
, TSAN_ATOMIC64_COMPARE_EXCHANGE_STRONG
),
464 VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_16
,
465 TSAN_ATOMIC128_COMPARE_EXCHANGE_STRONG
),
467 LOCK_RELEASE (SYNC_LOCK_RELEASE_1
, TSAN_ATOMIC8_STORE
),
468 LOCK_RELEASE (SYNC_LOCK_RELEASE_2
, TSAN_ATOMIC16_STORE
),
469 LOCK_RELEASE (SYNC_LOCK_RELEASE_4
, TSAN_ATOMIC32_STORE
),
470 LOCK_RELEASE (SYNC_LOCK_RELEASE_8
, TSAN_ATOMIC64_STORE
),
471 LOCK_RELEASE (SYNC_LOCK_RELEASE_16
, TSAN_ATOMIC128_STORE
),
473 BOOL_CLEAR (ATOMIC_CLEAR
, TSAN_ATOMIC8_STORE
),
475 BOOL_TEST_AND_SET (ATOMIC_TEST_AND_SET
, TSAN_ATOMIC8_EXCHANGE
)
478 /* Instrument an atomic builtin. */
481 instrument_builtin_call (gimple_stmt_iterator
*gsi
)
483 gimple
*stmt
= gsi_stmt (*gsi
), *g
;
484 tree callee
= gimple_call_fndecl (stmt
), last_arg
, args
[6], t
, lhs
;
485 enum built_in_function fcode
= DECL_FUNCTION_CODE (callee
);
486 unsigned int i
, num
= gimple_call_num_args (stmt
), j
;
487 for (j
= 0; j
< 6 && j
< num
; j
++)
488 args
[j
] = gimple_call_arg (stmt
, j
);
489 for (i
= 0; i
< ARRAY_SIZE (tsan_atomic_table
); i
++)
490 if (fcode
!= tsan_atomic_table
[i
].fcode
)
494 tree decl
= builtin_decl_implicit (tsan_atomic_table
[i
].tsan_fcode
);
495 if (decl
== NULL_TREE
)
497 switch (tsan_atomic_table
[i
].action
)
501 last_arg
= gimple_call_arg (stmt
, num
- 1);
502 if (!tree_fits_uhwi_p (last_arg
)
503 || memmodel_base (tree_to_uhwi (last_arg
)) >= MEMMODEL_LAST
)
505 gimple_call_set_fndecl (stmt
, decl
);
507 if (tsan_atomic_table
[i
].action
== fetch_op
)
509 args
[1] = gimple_call_arg (stmt
, 1);
515 case fetch_op_seq_cst
:
516 gcc_assert (num
<= 2);
517 for (j
= 0; j
< num
; j
++)
518 args
[j
] = gimple_call_arg (stmt
, j
);
521 args
[num
] = build_int_cst (NULL_TREE
,
522 tsan_atomic_table
[i
].action
526 update_gimple_call (gsi
, decl
, num
+ 1, args
[0], args
[1], args
[2]);
527 stmt
= gsi_stmt (*gsi
);
528 if (tsan_atomic_table
[i
].action
== fetch_op_seq_cst
)
531 lhs
= gimple_call_lhs (stmt
);
532 if (lhs
== NULL_TREE
)
534 if (!useless_type_conversion_p (TREE_TYPE (lhs
),
535 TREE_TYPE (args
[1])))
537 tree var
= make_ssa_name (TREE_TYPE (lhs
));
538 g
= gimple_build_assign (var
, NOP_EXPR
, args
[1]);
539 gsi_insert_after (gsi
, g
, GSI_NEW_STMT
);
542 gimple_call_set_lhs (stmt
, make_ssa_name (TREE_TYPE (lhs
)));
543 /* BIT_NOT_EXPR stands for NAND. */
544 if (tsan_atomic_table
[i
].code
== BIT_NOT_EXPR
)
546 tree var
= make_ssa_name (TREE_TYPE (lhs
));
547 g
= gimple_build_assign (var
, BIT_AND_EXPR
,
548 gimple_call_lhs (stmt
), args
[1]);
549 gsi_insert_after (gsi
, g
, GSI_NEW_STMT
);
550 g
= gimple_build_assign (lhs
, BIT_NOT_EXPR
, var
);
553 g
= gimple_build_assign (lhs
, tsan_atomic_table
[i
].code
,
554 gimple_call_lhs (stmt
), args
[1]);
556 gsi_insert_after (gsi
, g
, GSI_NEW_STMT
);
560 if (!integer_nonzerop (gimple_call_arg (stmt
, 3)))
564 gcc_assert (num
== 6);
565 for (j
= 0; j
< 6; j
++)
566 args
[j
] = gimple_call_arg (stmt
, j
);
567 if (!tree_fits_uhwi_p (args
[4])
568 || memmodel_base (tree_to_uhwi (args
[4])) >= MEMMODEL_LAST
)
570 if (!tree_fits_uhwi_p (args
[5])
571 || memmodel_base (tree_to_uhwi (args
[5])) >= MEMMODEL_LAST
)
573 update_gimple_call (gsi
, decl
, 5, args
[0], args
[1], args
[2],
578 gcc_assert (num
== 3);
579 for (j
= 0; j
< 3; j
++)
580 args
[j
] = gimple_call_arg (stmt
, j
);
581 t
= TYPE_ARG_TYPES (TREE_TYPE (decl
));
582 t
= TREE_VALUE (TREE_CHAIN (TREE_CHAIN (t
)));
583 t
= create_tmp_var (t
);
584 mark_addressable (t
);
585 if (!useless_type_conversion_p (TREE_TYPE (t
),
586 TREE_TYPE (args
[1])))
588 g
= gimple_build_assign (make_ssa_name (TREE_TYPE (t
)),
590 gsi_insert_before (gsi
, g
, GSI_SAME_STMT
);
591 args
[1] = gimple_assign_lhs (g
);
593 g
= gimple_build_assign (t
, args
[1]);
594 gsi_insert_before (gsi
, g
, GSI_SAME_STMT
);
595 lhs
= gimple_call_lhs (stmt
);
596 update_gimple_call (gsi
, decl
, 5, args
[0],
597 build_fold_addr_expr (t
), args
[2],
598 build_int_cst (NULL_TREE
,
600 build_int_cst (NULL_TREE
,
602 if (tsan_atomic_table
[i
].action
== val_cas
&& lhs
)
605 stmt
= gsi_stmt (*gsi
);
606 g
= gimple_build_assign (make_ssa_name (TREE_TYPE (t
)), t
);
607 gsi_insert_after (gsi
, g
, GSI_NEW_STMT
);
608 t
= make_ssa_name (TREE_TYPE (TREE_TYPE (decl
)), stmt
);
609 cond
= build2 (NE_EXPR
, boolean_type_node
, t
,
610 build_int_cst (TREE_TYPE (t
), 0));
611 g
= gimple_build_assign (lhs
, COND_EXPR
, cond
, args
[1],
612 gimple_assign_lhs (g
));
613 gimple_call_set_lhs (stmt
, t
);
615 gsi_insert_after (gsi
, g
, GSI_NEW_STMT
);
619 gcc_assert (num
== 1);
620 t
= TYPE_ARG_TYPES (TREE_TYPE (decl
));
621 t
= TREE_VALUE (TREE_CHAIN (t
));
622 update_gimple_call (gsi
, decl
, 3, gimple_call_arg (stmt
, 0),
623 build_int_cst (t
, 0),
624 build_int_cst (NULL_TREE
,
628 case bool_test_and_set
:
629 if (BOOL_TYPE_SIZE
!= 8)
632 for (j
= 1; j
< 5; j
++)
633 if (BOOL_TYPE_SIZE
== (8 << j
))
635 enum built_in_function tsan_fcode
636 = (enum built_in_function
)
637 (tsan_atomic_table
[i
].tsan_fcode
+ j
);
638 decl
= builtin_decl_implicit (tsan_fcode
);
641 if (decl
== NULL_TREE
)
644 last_arg
= gimple_call_arg (stmt
, num
- 1);
645 if (!tree_fits_uhwi_p (last_arg
)
646 || memmodel_base (tree_to_uhwi (last_arg
)) >= MEMMODEL_LAST
)
648 t
= TYPE_ARG_TYPES (TREE_TYPE (decl
));
649 t
= TREE_VALUE (TREE_CHAIN (t
));
650 if (tsan_atomic_table
[i
].action
== bool_clear
)
652 update_gimple_call (gsi
, decl
, 3, gimple_call_arg (stmt
, 0),
653 build_int_cst (t
, 0), last_arg
);
656 t
= build_int_cst (t
, targetm
.atomic_test_and_set_trueval
);
657 update_gimple_call (gsi
, decl
, 3, gimple_call_arg (stmt
, 0),
659 stmt
= gsi_stmt (*gsi
);
660 lhs
= gimple_call_lhs (stmt
);
661 if (lhs
== NULL_TREE
)
663 if (targetm
.atomic_test_and_set_trueval
!= 1
664 || !useless_type_conversion_p (TREE_TYPE (lhs
),
667 tree new_lhs
= make_ssa_name (TREE_TYPE (t
));
668 gimple_call_set_lhs (stmt
, new_lhs
);
669 if (targetm
.atomic_test_and_set_trueval
!= 1)
670 g
= gimple_build_assign (lhs
, NE_EXPR
, new_lhs
,
671 build_int_cst (TREE_TYPE (t
), 0));
673 g
= gimple_build_assign (lhs
, NOP_EXPR
, new_lhs
);
674 gsi_insert_after (gsi
, g
, GSI_NEW_STMT
);
684 /* Instruments the gimple pointed to by GSI. Return
685 true if func entry/exit should be instrumented. */
688 instrument_gimple (gimple_stmt_iterator
*gsi
)
692 bool instrumented
= false;
694 stmt
= gsi_stmt (*gsi
);
695 if (is_gimple_call (stmt
)
696 && (gimple_call_fndecl (stmt
)
697 != builtin_decl_implicit (BUILT_IN_TSAN_INIT
)))
699 /* All functions with function call will have exit instrumented,
700 therefore no function calls other than __tsan_func_exit
701 shall appear in the functions. */
702 gimple_call_set_tail (as_a
<gcall
*> (stmt
), false);
703 if (gimple_call_builtin_p (stmt
, BUILT_IN_NORMAL
))
704 instrument_builtin_call (gsi
);
707 else if (is_gimple_assign (stmt
)
708 && !gimple_clobber_p (stmt
))
710 if (gimple_store_p (stmt
))
712 lhs
= gimple_assign_lhs (stmt
);
713 instrumented
= instrument_expr (*gsi
, lhs
, true);
715 if (gimple_assign_load_p (stmt
))
717 rhs
= gimple_assign_rhs1 (stmt
);
718 instrumented
= instrument_expr (*gsi
, rhs
, false);
724 /* Replace TSAN_FUNC_EXIT internal call with function exit tsan builtin. */
727 replace_func_exit (gimple
*stmt
)
729 tree builtin_decl
= builtin_decl_implicit (BUILT_IN_TSAN_FUNC_EXIT
);
730 gimple
*g
= gimple_build_call (builtin_decl
, 0);
731 gimple_set_location (g
, cfun
->function_end_locus
);
732 gimple_stmt_iterator gsi
= gsi_for_stmt (stmt
);
733 gsi_replace (&gsi
, g
, true);
736 /* Instrument function exit. Used when TSAN_FUNC_EXIT does not exist. */
739 instrument_func_exit (void)
743 gimple_stmt_iterator gsi
;
749 /* Find all function exits. */
750 exit_bb
= EXIT_BLOCK_PTR_FOR_FN (cfun
);
751 FOR_EACH_EDGE (e
, ei
, exit_bb
->preds
)
753 gsi
= gsi_last_bb (e
->src
);
754 stmt
= gsi_stmt (gsi
);
755 gcc_assert (gimple_code (stmt
) == GIMPLE_RETURN
756 || gimple_call_builtin_p (stmt
, BUILT_IN_RETURN
));
757 loc
= gimple_location (stmt
);
758 builtin_decl
= builtin_decl_implicit (BUILT_IN_TSAN_FUNC_EXIT
);
759 g
= gimple_build_call (builtin_decl
, 0);
760 gimple_set_location (g
, loc
);
761 gsi_insert_before (&gsi
, g
, GSI_SAME_STMT
);
765 /* Instruments all interesting memory accesses in the current function.
766 Return true if func entry/exit should be instrumented. */
769 instrument_memory_accesses (void)
772 gimple_stmt_iterator gsi
;
773 bool fentry_exit_instrument
= false;
774 bool func_exit_seen
= false;
775 auto_vec
<gimple
*> tsan_func_exits
;
777 FOR_EACH_BB_FN (bb
, cfun
)
778 for (gsi
= gsi_start_bb (bb
); !gsi_end_p (gsi
); gsi_next (&gsi
))
780 gimple
*stmt
= gsi_stmt (gsi
);
781 if (gimple_call_internal_p (stmt
, IFN_TSAN_FUNC_EXIT
))
783 if (fentry_exit_instrument
)
784 replace_func_exit (stmt
);
786 tsan_func_exits
.safe_push (stmt
);
787 func_exit_seen
= true;
790 fentry_exit_instrument
|= instrument_gimple (&gsi
);
794 FOR_EACH_VEC_ELT (tsan_func_exits
, i
, stmt
)
795 if (fentry_exit_instrument
)
796 replace_func_exit (stmt
);
799 gsi
= gsi_for_stmt (stmt
);
800 gsi_remove (&gsi
, true);
802 if (fentry_exit_instrument
&& !func_exit_seen
)
803 instrument_func_exit ();
804 return fentry_exit_instrument
;
807 /* Instruments function entry. */
810 instrument_func_entry (void)
812 tree ret_addr
, builtin_decl
;
814 gimple_seq seq
= NULL
;
816 builtin_decl
= builtin_decl_implicit (BUILT_IN_RETURN_ADDRESS
);
817 g
= gimple_build_call (builtin_decl
, 1, integer_zero_node
);
818 ret_addr
= make_ssa_name (ptr_type_node
);
819 gimple_call_set_lhs (g
, ret_addr
);
820 gimple_set_location (g
, cfun
->function_start_locus
);
821 gimple_seq_add_stmt_without_update (&seq
, g
);
823 builtin_decl
= builtin_decl_implicit (BUILT_IN_TSAN_FUNC_ENTRY
);
824 g
= gimple_build_call (builtin_decl
, 1, ret_addr
);
825 gimple_set_location (g
, cfun
->function_start_locus
);
826 gimple_seq_add_stmt_without_update (&seq
, g
);
828 edge e
= single_succ_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun
));
829 gsi_insert_seq_on_edge_immediate (e
, seq
);
832 /* ThreadSanitizer instrumentation pass. */
837 initialize_sanitizer_builtins ();
838 if (instrument_memory_accesses ())
839 instrument_func_entry ();
843 /* Inserts __tsan_init () into the list of CTORs. */
846 tsan_finish_file (void)
848 tree ctor_statements
= NULL_TREE
;
850 initialize_sanitizer_builtins ();
851 tree init_decl
= builtin_decl_implicit (BUILT_IN_TSAN_INIT
);
852 append_to_statement_list (build_call_expr (init_decl
, 0),
854 cgraph_build_static_cdtor ('I', ctor_statements
,
855 MAX_RESERVED_INIT_PRIORITY
- 1);
858 /* The pass descriptor. */
862 const pass_data pass_data_tsan
=
864 GIMPLE_PASS
, /* type */
866 OPTGROUP_NONE
, /* optinfo_flags */
868 ( PROP_ssa
| PROP_cfg
), /* properties_required */
869 0, /* properties_provided */
870 0, /* properties_destroyed */
871 0, /* todo_flags_start */
872 TODO_update_ssa
, /* todo_flags_finish */
875 class pass_tsan
: public gimple_opt_pass
878 pass_tsan (gcc::context
*ctxt
)
879 : gimple_opt_pass (pass_data_tsan
, ctxt
)
882 /* opt_pass methods: */
883 opt_pass
* clone () { return new pass_tsan (m_ctxt
); }
884 virtual bool gate (function
*)
886 return ((flag_sanitize
& SANITIZE_THREAD
) != 0
887 && !lookup_attribute ("no_sanitize_thread",
888 DECL_ATTRIBUTES (current_function_decl
)));
891 virtual unsigned int execute (function
*) { return tsan_pass (); }
893 }; // class pass_tsan
898 make_pass_tsan (gcc::context
*ctxt
)
900 return new pass_tsan (ctxt
);
905 const pass_data pass_data_tsan_O0
=
907 GIMPLE_PASS
, /* type */
909 OPTGROUP_NONE
, /* optinfo_flags */
911 ( PROP_ssa
| PROP_cfg
), /* properties_required */
912 0, /* properties_provided */
913 0, /* properties_destroyed */
914 0, /* todo_flags_start */
915 TODO_update_ssa
, /* todo_flags_finish */
918 class pass_tsan_O0
: public gimple_opt_pass
921 pass_tsan_O0 (gcc::context
*ctxt
)
922 : gimple_opt_pass (pass_data_tsan_O0
, ctxt
)
925 /* opt_pass methods: */
926 virtual bool gate (function
*)
928 return ((flag_sanitize
& SANITIZE_THREAD
) != 0 && !optimize
929 && !lookup_attribute ("no_sanitize_thread",
930 DECL_ATTRIBUTES (current_function_decl
)));
933 virtual unsigned int execute (function
*) { return tsan_pass (); }
935 }; // class pass_tsan_O0
940 make_pass_tsan_O0 (gcc::context
*ctxt
)
942 return new pass_tsan_O0 (ctxt
);