Mercurial > hg > CbC > CbC_gcc

comparison gcc/ggc.h @ 145:1830386684a0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 84e7813d76e9
children
comparison
equal deleted inserted replaced
131:84e7813d76e9 145:1830386684a0
1 /* Garbage collection for the GNU compiler. 1 /* Garbage collection for the GNU compiler.
2 2
3 Copyright (C) 1998-2018 Free Software Foundation, Inc. 3 Copyright (C) 1998-2020 Free Software Foundation, Inc.
4 4
5 This file is part of GCC. 5 This file is part of GCC.
6 6
7 GCC is free software; you can redistribute it and/or modify it under 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 8 the terms of the GNU General Public License as published by the Free
147 extern void *ggc_realloc (void *, size_t CXX_MEM_STAT_INFO); 147 extern void *ggc_realloc (void *, size_t CXX_MEM_STAT_INFO);
148 148
149 /* Free a block. To be used when known for certain it's not reachable. */ 149 /* Free a block. To be used when known for certain it's not reachable. */
150 extern void ggc_free (void *); 150 extern void ggc_free (void *);
151 151
152 extern void dump_ggc_loc_statistics (bool); 152 extern void dump_ggc_loc_statistics ();
153 153
154 /* Reallocator. */ 154 /* Reallocator. */
155 #define GGC_RESIZEVEC(T, P, N) \ 155 #define GGC_RESIZEVEC(T, P, N) \
156 ((T *) ggc_realloc ((P), (N) * sizeof (T) MEM_STAT_INFO)) 156 ((T *) ggc_realloc ((P), (N) * sizeof (T) MEM_STAT_INFO))
157 157
181 return static_cast<T *> (ggc_internal_alloc (sizeof (T), finalize<T>, 0, 1 181 return static_cast<T *> (ggc_internal_alloc (sizeof (T), finalize<T>, 0, 1
182 PASS_MEM_STAT)); 182 PASS_MEM_STAT));
183 else 183 else
184 return static_cast<T *> (ggc_internal_alloc (sizeof (T), NULL, 0, 1 184 return static_cast<T *> (ggc_internal_alloc (sizeof (T), NULL, 0, 1
185 PASS_MEM_STAT)); 185 PASS_MEM_STAT));
186 }
187
188 /* GGC allocation function that does not call finalizer for type
189 that have need_finalization_p equal to true. User is responsible
190 for calling of the destructor. */
191
192 template<typename T>
193 inline T *
194 ggc_alloc_no_dtor (ALONE_CXX_MEM_STAT_INFO)
195 {
196 return static_cast<T *> (ggc_internal_alloc (sizeof (T), NULL, 0, 1
197 PASS_MEM_STAT));
186 } 198 }
187 199
188 template<typename T> 200 template<typename T>
189 inline T * 201 inline T *
190 ggc_cleared_alloc (ALONE_CXX_MEM_STAT_INFO) 202 ggc_cleared_alloc (ALONE_CXX_MEM_STAT_INFO)
228 ggc_alloc_atomic (size_t s CXX_MEM_STAT_INFO) 240 ggc_alloc_atomic (size_t s CXX_MEM_STAT_INFO)
229 { 241 {
230 return ggc_internal_alloc (s PASS_MEM_STAT); 242 return ggc_internal_alloc (s PASS_MEM_STAT);
231 } 243 }
232 244
245 /* Call destructor and free the garbage collected memory. */
246
247 template <typename T>
248 inline void
249 ggc_delete (T *ptr)
250 {
251 ptr->~T ();
252 ggc_free (ptr);
253 }
254
233 /* Allocate a gc-able string, and fill it with LENGTH bytes from CONTENTS. 255 /* Allocate a gc-able string, and fill it with LENGTH bytes from CONTENTS.
234 If LENGTH is -1, then CONTENTS is assumed to be a 256 If LENGTH is -1, then CONTENTS is assumed to be a
235 null-terminated string and the memory sized accordingly. */ 257 null-terminated string and the memory sized accordingly. */
236 extern const char *ggc_alloc_string (const char *contents, int length 258 extern const char *ggc_alloc_string (const char *contents, int length
237 CXX_MEM_STAT_INFO); 259 CXX_MEM_STAT_INFO);
241 263
242 /* Invoke the collector. Garbage collection occurs only when this 264 /* Invoke the collector. Garbage collection occurs only when this
243 function is called, not during allocations. */ 265 function is called, not during allocations. */
244 extern void ggc_collect (void); 266 extern void ggc_collect (void);
245 267
268 /* Return unused memory pages to the system. */
269 extern void ggc_trim (void);
270
246 /* Assume that all GGC memory is reachable and grow the limits for next collection. */ 271 /* Assume that all GGC memory is reachable and grow the limits for next collection. */
247 extern void ggc_grow (void); 272 extern void ggc_grow (void);
248 273
249 /* Register an additional root table. This can be useful for some 274 /* Register an additional root table. This can be useful for some
250 plugins. Does nothing if the passed pointer is NULL. */ 275 plugins. Does nothing if the passed pointer is NULL. */
261 extern void stringpool_statistics (void); 286 extern void stringpool_statistics (void);
262 287
263 /* Heuristics. */ 288 /* Heuristics. */
264 extern void init_ggc_heuristics (void); 289 extern void init_ggc_heuristics (void);
265 290
291 /* Report current heap memory use to stderr. */
292 extern void report_heap_memory_use (void);
293
266 #define ggc_alloc_rtvec_sized(NELT) \ 294 #define ggc_alloc_rtvec_sized(NELT) \
267 (rtvec_def *) ggc_internal_alloc (sizeof (struct rtvec_def) \ 295 (rtvec_def *) ggc_internal_alloc (sizeof (struct rtvec_def) \
268 + ((NELT) - 1) * sizeof (rtx)) \ 296 + ((NELT) - 1) * sizeof (rtx)) \
269 297
270 /* Memory statistics passing versions of some allocators. Too few of them to 298 /* Memory statistics passing versions of some allocators. Too few of them to