/* Garbage collection for the GNU compiler.
- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007,
- 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1998-2014 Free Software Foundation, Inc.
This file is part of GCC.
/* Internal functions and data structures used by the GTY
machinery, including the generated gt*.[hc] files. */
-/* The first parameter is a pointer to a pointer, the second a cookie. */
-typedef void (*gt_pointer_operator) (void *, void *);
-
#include "gtype-desc.h"
/* One of these applies its third parameter (with cookie in the fourth
void *);
/* Used by the gt_pch_n_* routines. Register an object in the hash table. */
-extern int gt_pch_note_object (void *, void *, gt_note_pointers,
- enum gt_types_enum);
+extern int gt_pch_note_object (void *, void *, gt_note_pointers);
/* Used by the gt_pch_n_* routines. Register that an object has a reorder
function. */
/* End of GTY machinery API. */
-struct alloc_zone;
-
/* Initialize the string pool. */
extern void init_stringpool (void);
/* Allocation. */
/* The internal primitive. */
-extern void *ggc_internal_alloc_stat (size_t MEM_STAT_DECL);
+extern void *ggc_internal_alloc (size_t, void (*)(void *), size_t,
+ size_t CXX_MEM_STAT_INFO)
+ ATTRIBUTE_MALLOC;
-#define ggc_internal_alloc(s) ggc_internal_alloc_stat (s MEM_STAT_INFO)
-
-/* Allocate an object of the specified type and size. */
-extern void *ggc_alloc_typed_stat (enum gt_types_enum, size_t MEM_STAT_DECL);
+ static inline
+ void *
+ ggc_internal_alloc (size_t s CXX_MEM_STAT_INFO)
+{
+ return ggc_internal_alloc (s, NULL, 0, 1 PASS_MEM_STAT);
+}
-#define ggc_alloc_typed(s, z) ggc_alloc_typed_stat (s, z MEM_STAT_INFO)
+extern size_t ggc_round_alloc_size (size_t requested_size);
/* Allocates cleared memory. */
-extern void *ggc_internal_cleared_alloc_stat (size_t MEM_STAT_DECL);
+extern void *ggc_internal_cleared_alloc (size_t, void (*)(void *),
+ size_t, size_t
+ CXX_MEM_STAT_INFO) ATTRIBUTE_MALLOC;
+
+static inline
+void *
+ggc_internal_cleared_alloc (size_t s CXX_MEM_STAT_INFO)
+{
+ return ggc_internal_cleared_alloc (s, NULL, 0, 1 PASS_MEM_STAT);
+}
/* Resize a block. */
-extern void *ggc_realloc_stat (void *, size_t MEM_STAT_DECL);
+extern void *ggc_realloc (void *, size_t CXX_MEM_STAT_INFO);
/* Free a block. To be used when known for certain it's not reachable. */
extern void ggc_free (void *);
-extern void ggc_record_overhead (size_t, size_t, void * MEM_STAT_DECL);
-extern void ggc_free_overhead (void *);
-extern void ggc_prune_overhead_list (void);
-
extern void dump_ggc_loc_statistics (bool);
-/* Reallocators. */
+/* Reallocator. */
#define GGC_RESIZEVEC(T, P, N) \
- ((T *) ggc_realloc_stat ((P), (N) * sizeof (T) MEM_STAT_INFO))
+ ((T *) ggc_realloc ((P), (N) * sizeof (T) MEM_STAT_INFO))
-#define GGC_RESIZEVAR(T, P, N) \
- ((T *) ggc_realloc_stat ((P), (N) MEM_STAT_INFO))
+template<typename T>
+void
+finalize (void *p)
+{
+ static_cast<T *> (p)->~T ();
+}
-static inline void *
-ggc_internal_vec_alloc_stat (size_t s, size_t c MEM_STAT_DECL)
+template<typename T>
+static inline bool
+need_finalization_p ()
{
- return ggc_internal_alloc_stat (c * s PASS_MEM_STAT);
+#if GCC_VERSION >= 4003
+ return !__has_trivial_destructor (T);
+#else
+ return true;
+#endif
}
-static inline void *
-ggc_internal_cleared_vec_alloc_stat (size_t s, size_t c MEM_STAT_DECL)
+template<typename T>
+static inline T *
+ggc_alloc (ALONE_CXX_MEM_STAT_INFO)
{
- return ggc_internal_cleared_alloc_stat (c * s PASS_MEM_STAT);
+ if (need_finalization_p<T> ())
+ return static_cast<T *> (ggc_internal_alloc (sizeof (T), finalize<T>, 0, 1
+ PASS_MEM_STAT));
+ else
+ return static_cast<T *> (ggc_internal_alloc (sizeof (T), NULL, 0, 1
+ PASS_MEM_STAT));
}
-#define ggc_internal_cleared_vec_alloc(s, c) \
- (ggc_internal_cleared_vec_alloc_stat ((s), (c) MEM_STAT_INFO))
+template<typename T>
+static inline T *
+ggc_cleared_alloc (ALONE_CXX_MEM_STAT_INFO)
+{
+ if (need_finalization_p<T> ())
+ return static_cast<T *> (ggc_internal_cleared_alloc (sizeof (T),
+ finalize<T>, 0, 1
+ PASS_MEM_STAT));
+ else
+ return static_cast<T *> (ggc_internal_cleared_alloc (sizeof (T), NULL, 0, 1
+ PASS_MEM_STAT));
+}
-static inline void *
-ggc_alloc_atomic_stat (size_t s MEM_STAT_DECL)
+template<typename T>
+static inline T *
+ggc_vec_alloc (size_t c CXX_MEM_STAT_INFO)
{
- return ggc_internal_alloc_stat (s PASS_MEM_STAT);
+ if (need_finalization_p<T> ())
+ return static_cast<T *> (ggc_internal_alloc (c * sizeof (T), finalize<T>,
+ sizeof (T), c PASS_MEM_STAT));
+ else
+ return static_cast<T *> (ggc_internal_alloc (c * sizeof (T), NULL, 0, 0
+ PASS_MEM_STAT));
}
-#define ggc_alloc_atomic(S) (ggc_alloc_atomic_stat ((S) MEM_STAT_INFO))
+template<typename T>
+static inline T *
+ggc_cleared_vec_alloc (size_t c CXX_MEM_STAT_INFO)
+{
+ if (need_finalization_p<T> ())
+ return static_cast<T *> (ggc_internal_cleared_alloc (c * sizeof (T),
+ finalize<T>,
+ sizeof (T), c
+ PASS_MEM_STAT));
+ else
+ return static_cast<T *> (ggc_internal_cleared_alloc (c * sizeof (T), NULL,
+ 0, 0 PASS_MEM_STAT));
+}
-#define ggc_alloc_cleared_atomic(S) \
- (ggc_internal_cleared_alloc_stat ((S) MEM_STAT_INFO))
+static inline void *
+ggc_alloc_atomic (size_t s CXX_MEM_STAT_INFO)
+{
+ return ggc_internal_alloc (s PASS_MEM_STAT);
+}
-extern void * ggc_cleared_alloc_htab_ignore_args (size_t, size_t);
+extern void *ggc_cleared_alloc_htab_ignore_args (size_t, size_t)
+ ATTRIBUTE_MALLOC;
-extern void * ggc_cleared_alloc_ptr_array_two_args (size_t, size_t);
+extern void *ggc_cleared_alloc_ptr_array_two_args (size_t, size_t)
+ ATTRIBUTE_MALLOC;
#define htab_create_ggc(SIZE, HASH, EQ, DEL) \
htab_create_typed_alloc (SIZE, HASH, EQ, DEL, \
splay_tree_new_typed_alloc (COMPARE, NULL, NULL, &ALLOC_TREE, &ALLOC_NODE, \
&ggc_splay_dont_free, NULL)
-extern void *ggc_splay_alloc (enum gt_types_enum, int, void *);
+extern void *ggc_splay_alloc (int, void *)
+ ATTRIBUTE_MALLOC;
extern void ggc_splay_dont_free (void *, void *);
/* Allocate a gc-able string, and fill it with LENGTH bytes from CONTENTS.
If LENGTH is -1, then CONTENTS is assumed to be a
null-terminated string and the memory sized accordingly. */
-extern const char *ggc_alloc_string_stat (const char *contents, int length
- MEM_STAT_DECL);
-
-#define ggc_alloc_string(c, l) ggc_alloc_string_stat (c, l MEM_STAT_INFO)
+extern const char *ggc_alloc_string (const char *contents, int length
+ CXX_MEM_STAT_INFO);
/* Make a copy of S, in GC-able memory. */
-#define ggc_strdup(S) ggc_alloc_string_stat ((S), -1 MEM_STAT_INFO)
+#define ggc_strdup(S) ggc_alloc_string ((S), -1 MEM_STAT_INFO)
/* Invoke the collector. Garbage collection occurs only when this
function is called, not during allocations. */
extern void ggc_collect (void);
+/* Assume that all GGC memory is reachable and grow the limits for next collection. */
+extern void ggc_grow (void);
+
/* Register an additional root table. This can be useful for some
plugins. Does nothing if the passed pointer is NULL. */
extern void ggc_register_root_tab (const struct ggc_root_tab *);
/* Heuristics. */
extern void init_ggc_heuristics (void);
-/* Zone collection. */
-
-/* For regular rtl allocations. */
-extern struct alloc_zone rtl_zone;
-
-/* For regular tree allocations. */
-extern struct alloc_zone tree_zone;
-
-/* For IDENTIFIER_NODE allocations. */
-extern struct alloc_zone tree_id_zone;
+#define ggc_alloc_rtvec_sized(NELT) \
+ (rtvec_def *) ggc_internal_alloc (sizeof (struct rtvec_def) \
+ + ((NELT) - 1) * sizeof (rtx)) \
-#define ggc_alloc_rtvec_sized(NELT) \
- ggc_alloc_zone_rtvec_def (sizeof (struct rtvec_def) \
- + ((NELT) - 1) * sizeof (rtx), \
- &rtl_zone)
-
-#if defined (GGC_ZONE) && !defined (GENERATOR_FILE)
-
-/* Allocate an object into the specified allocation zone. */
-extern void *ggc_internal_alloc_zone_stat (size_t,
- struct alloc_zone * MEM_STAT_DECL);
-
-extern void *ggc_internal_cleared_alloc_zone_stat (size_t,
- struct alloc_zone * MEM_STAT_DECL);
-
-static inline void *
-ggc_internal_zone_alloc_stat (struct alloc_zone * z, size_t s MEM_STAT_DECL)
-{
- return ggc_internal_alloc_zone_stat (s, z PASS_MEM_STAT);
-}
-
-static inline void *
-ggc_internal_zone_cleared_alloc_stat (struct alloc_zone * z, size_t s
- MEM_STAT_DECL)
+/* Memory statistics passing versions of some allocators. Too few of them to
+ make gengtype produce them, so just define the needed ones here. */
+static inline struct rtx_def *
+ggc_alloc_rtx_def_stat (size_t s CXX_MEM_STAT_INFO)
{
- return ggc_internal_cleared_alloc_zone_stat (s, z PASS_MEM_STAT);
+ return (struct rtx_def *) ggc_internal_alloc (s PASS_MEM_STAT);
}
-static inline void *
-ggc_internal_zone_vec_alloc_stat (struct alloc_zone * z, size_t s, size_t n
- MEM_STAT_DECL)
+static inline union tree_node *
+ggc_alloc_tree_node_stat (size_t s CXX_MEM_STAT_INFO)
{
- return ggc_internal_alloc_zone_stat (s * n, z PASS_MEM_STAT);
+ return (union tree_node *) ggc_internal_alloc (s PASS_MEM_STAT);
}
-
-#else
-
-static inline void *
-ggc_internal_zone_alloc_stat (struct alloc_zone * z ATTRIBUTE_UNUSED,
- size_t s MEM_STAT_DECL)
+static inline union tree_node *
+ggc_alloc_cleared_tree_node_stat (size_t s CXX_MEM_STAT_INFO)
{
- return ggc_internal_alloc_stat (s PASS_MEM_STAT);
+ return (union tree_node *) ggc_internal_cleared_alloc (s PASS_MEM_STAT);
}
-static inline void *
-ggc_internal_zone_cleared_alloc_stat (struct alloc_zone * z ATTRIBUTE_UNUSED,
- size_t s MEM_STAT_DECL)
+static inline struct gimple_statement_base *
+ggc_alloc_cleared_gimple_statement_stat (size_t s CXX_MEM_STAT_INFO)
{
- return ggc_internal_cleared_alloc_stat (s PASS_MEM_STAT);
+ return (struct gimple_statement_base *)
+ ggc_internal_cleared_alloc (s PASS_MEM_STAT);
}
-static inline void *
-ggc_internal_zone_vec_alloc_stat (struct alloc_zone * z ATTRIBUTE_UNUSED,
- size_t s, size_t n MEM_STAT_DECL)
+static inline void
+gt_ggc_mx (const char *s)
{
- return ggc_internal_vec_alloc_stat (s, n PASS_MEM_STAT);
+ ggc_test_and_set_mark (const_cast<char *> (s));
}
-#endif
-
-/* Memory statistics passing versions of some allocators. Too few of them to
- make gengtype produce them, so just define the needed ones here. */
-static inline struct rtx_def *
-ggc_alloc_zone_rtx_def_stat (struct alloc_zone * z, size_t s MEM_STAT_DECL)
+static inline void
+gt_pch_nx (const char *)
{
- return (struct rtx_def *) ggc_internal_zone_alloc_stat (z, s PASS_MEM_STAT);
}
-static inline union tree_node *
-ggc_alloc_zone_tree_node_stat (struct alloc_zone * z, size_t s MEM_STAT_DECL)
+static inline void
+gt_ggc_mx (int)
{
- return (union tree_node *) ggc_internal_zone_alloc_stat (z, s PASS_MEM_STAT);
}
-static inline union tree_node *
-ggc_alloc_zone_cleared_tree_node_stat (struct alloc_zone * z, size_t s
- MEM_STAT_DECL)
+static inline void
+gt_pch_nx (int)
{
- return (union tree_node *)
- ggc_internal_zone_cleared_alloc_stat (z, s PASS_MEM_STAT);
}
-static inline union gimple_statement_d *
-ggc_alloc_cleared_gimple_statement_d_stat (size_t s MEM_STAT_DECL)
+static inline void
+gt_pch_nx (unsigned int)
{
- return (union gimple_statement_d *)
- ggc_internal_cleared_alloc_stat (s PASS_MEM_STAT);
}
#endif