1 /* Vector API for GNU compiler.
2 Copyright (C) 2004, 2005 Free Software Foundation, Inc.
3 Contributed by Nathan Sidwell <nathan@codesourcery.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 2, 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 COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
27 #include "coretypes.h"
37 /* Ensure there are at least RESERVE free slots in VEC, if RESERVE >=
38 0. If RESERVE < 0 increase the current allocation exponentially.
39 VEC can be NULL, to create a new vector. */
42 vec_gc_p_reserve (void *vec
, int reserve MEM_STAT_DECL
)
44 return vec_gc_o_reserve (vec
, reserve
,
45 offsetof (struct vec_prefix
, vec
), sizeof (void *)
49 /* Ensure there are at least RESERVE free slots in VEC, if RESERVE >=
50 0. If RESERVE < 0, increase the current allocation exponentially.
51 VEC can be NULL, in which case a new vector is created. The
52 vector's trailing array is at VEC_OFFSET offset and consists of
53 ELT_SIZE sized elements. */
56 vec_gc_o_reserve (void *vec
, int reserve
, size_t vec_offset
, size_t elt_size
59 struct vec_prefix
*pfx
= vec
;
60 unsigned alloc
= pfx
? pfx
->num
: 0;
69 gcc_assert (!pfx
|| pfx
->alloc
< alloc
);
71 vec
= ggc_realloc_stat (vec
, vec_offset
+ alloc
* elt_size PASS_MEM_STAT
);
72 ((struct vec_prefix
*)vec
)->alloc
= alloc
;
74 ((struct vec_prefix
*)vec
)->num
= 0;
79 /* Explicitly release a vector. */
82 vec_gc_free (void *vec
)
87 /* Ensure there are at least RESERVE free slots in VEC, if RESERVE >=
88 0. If RESERVE < 0 increase the current allocation exponentially.
89 VEC can be NULL, to create a new vector. */
92 vec_heap_p_reserve (void *vec
, int reserve MEM_STAT_DECL
)
94 return vec_heap_o_reserve (vec
, reserve
,
95 offsetof (struct vec_prefix
, vec
), sizeof (void *)
99 /* Ensure there are at least RESERVE free slots in VEC, if RESERVE >=
100 0. If RESERVE < 0, increase the current allocation exponentially.
101 VEC can be NULL, in which case a new vector is created. The
102 vector's trailing array is at VEC_OFFSET offset and consists of
103 ELT_SIZE sized elements. */
106 vec_heap_o_reserve (void *vec
, int reserve
, size_t vec_offset
, size_t elt_size
109 struct vec_prefix
*pfx
= vec
;
110 unsigned alloc
= pfx
? pfx
->num
: 0;
119 gcc_assert (!pfx
|| pfx
->alloc
< alloc
);
121 vec
= xrealloc (vec
, vec_offset
+ alloc
* elt_size
);
122 ((struct vec_prefix
*)vec
)->alloc
= alloc
;
124 ((struct vec_prefix
*)vec
)->num
= 0;
129 /* Explicitly release a vector. */
132 vec_heap_free (void *vec
)
138 /* Issue a vector domain error, and then fall over. */
141 vec_assert_fail (const char *op
, const char *struct_name
,
142 const char *file
, unsigned int line
, const char *function
)
144 internal_error ("vector %s %s domain error, in %s at %s:%u",
145 struct_name
, op
, function
, trim_filename (file
), line
);