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/* Virtual array support.
Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004
Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
#ifndef GCC_VARRAY_H
#define GCC_VARRAY_H
#ifndef HOST_WIDE_INT
#include "machmode.h"
#endif
#ifndef GCC_SYSTEM_H
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#endif
/* Enum indicating what the varray contains.
If this is changed, `element' in varray.c needs to be updated. */
enum varray_data_enum {
VARRAY_DATA_C,
VARRAY_DATA_UC,
VARRAY_DATA_S,
VARRAY_DATA_US,
VARRAY_DATA_I,
VARRAY_DATA_U,
VARRAY_DATA_L,
VARRAY_DATA_UL,
VARRAY_DATA_HINT,
VARRAY_DATA_UHINT,
VARRAY_DATA_GENERIC,
VARRAY_DATA_GENERIC_NOGC,
VARRAY_DATA_CPTR,
VARRAY_DATA_RTX,
VARRAY_DATA_RTVEC,
VARRAY_DATA_TREE,
VARRAY_DATA_BITMAP,
VARRAY_DATA_REG,
VARRAY_DATA_BB,
VARRAY_DATA_TE,
VARRAY_DATA_EDGE,
VARRAY_DATA_TREE_PTR,
NUM_VARRAY_DATA
};
/* Union of various array types that are used. */
typedef union varray_data_tag GTY (()) {
char GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_C"))) c[1];
unsigned char GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_UC"))) uc[1];
short GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_S"))) s[1];
unsigned short GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_US"))) us[1];
int GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_I"))) i[1];
unsigned int GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_U"))) u[1];
long GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_L"))) l[1];
unsigned long GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_UL"))) ul[1];
HOST_WIDE_INT GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_HINT"))) hint[1];
unsigned HOST_WIDE_INT GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_UHINT"))) uhint[1];
PTR GTY ((length ("%0.num_elements"), use_param,
tag ("VARRAY_DATA_GENERIC"))) generic[1];
PTR GTY ((length ("%0.num_elements"), skip (""),
tag ("VARRAY_DATA_GENERIC_NOGC"))) generic_nogc[1];
char *GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_CPTR"))) cptr[1];
rtx GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_RTX"))) rtx[1];
rtvec GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_RTVEC"))) rtvec[1];
tree GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_TREE"))) tree[1];
struct bitmap_head_def *GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_BITMAP"))) bitmap[1];
struct reg_info_def *GTY ((length ("%0.num_elements"), skip,
tag ("VARRAY_DATA_REG"))) reg[1];
struct basic_block_def *GTY ((length ("%0.num_elements"), skip,
tag ("VARRAY_DATA_BB"))) bb[1];
struct elt_list *GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_TE"))) te[1];
struct edge_def *GTY ((length ("%0.num_elements"),
tag ("VARRAY_DATA_EDGE"))) e[1];
tree *GTY ((length ("%0.num_elements"), skip (""),
tag ("VARRAY_DATA_TREE_PTR"))) tp[1];
} varray_data;
/* Virtual array of pointers header. */
struct varray_head_tag GTY(()) {
size_t num_elements; /* Maximum element number allocated. */
size_t elements_used; /* The number of elements used, if
using VARRAY_PUSH/VARRAY_POP. */
enum varray_data_enum type; /* The kind of elements in the varray. */
const char *name; /* name of the varray for reporting errors */
varray_data GTY ((desc ("%0.type"))) data; /* The data elements follow,
must be last. */
};
typedef struct varray_head_tag *varray_type;
/* Allocate a virtual array with NUM elements, each of which is SIZE bytes
long, named NAME. Array elements are zeroed. */
extern varray_type varray_init (size_t, enum varray_data_enum, const char *);
#define VARRAY_CHAR_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_C, name)
#define VARRAY_UCHAR_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_UC, name)
#define VARRAY_SHORT_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_S, name)
#define VARRAY_USHORT_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_US, name)
#define VARRAY_INT_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_I, name)
#define VARRAY_UINT_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_U, name)
#define VARRAY_LONG_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_L, name)
#define VARRAY_ULONG_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_UL, name)
#define VARRAY_WIDE_INT_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_HINT, name)
#define VARRAY_UWIDE_INT_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_UHINT, name)
#define VARRAY_GENERIC_PTR_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_GENERIC, name)
#define VARRAY_GENERIC_PTR_NOGC_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_GENERIC_NOGC, name)
#define VARRAY_CHAR_PTR_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_CPTR, name)
#define VARRAY_RTX_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_RTX, name)
#define VARRAY_RTVEC_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_RTVEC, name)
#define VARRAY_TREE_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_TREE, name)
#define VARRAY_BITMAP_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_BITMAP, name)
#define VARRAY_REG_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_REG, name)
#define VARRAY_BB_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_BB, name)
#define VARRAY_ELT_LIST_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_TE, name)
#define VARRAY_EDGE_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_EDGE, name)
#define VARRAY_TREE_PTR_INIT(va, num, name) \
va = varray_init (num, VARRAY_DATA_TREE_PTR, name)
/* Free up memory allocated by the virtual array, but do not free any of the
elements involved. */
#define VARRAY_FREE(vp) \
do { if (vp) { free (vp); vp = (varray_type) 0; } } while (0)
/* Grow/shrink the virtual array VA to N elements. */
extern varray_type varray_grow (varray_type, size_t);
#define VARRAY_GROW(VA, N) ((VA) = varray_grow (VA, N))
#define VARRAY_SIZE(VA) ((VA)->num_elements)
#define VARRAY_ACTIVE_SIZE(VA) ((VA)->elements_used)
#define VARRAY_POP_ALL(VA) ((VA)->elements_used = 0)
#define VARRAY_CLEAR(VA) varray_clear(VA)
extern void varray_clear (varray_type);
extern void dump_varray_statistics (void);
/* Check for VARRAY_xxx macros being in bound. */
#if defined ENABLE_CHECKING && (GCC_VERSION >= 2007)
extern void varray_check_failed (varray_type, size_t, const char *, int,
const char *) ATTRIBUTE_NORETURN;
extern void varray_underflow (varray_type, const char *, int, const char *)
ATTRIBUTE_NORETURN;
#define VARRAY_CHECK(VA, N, T) __extension__ \
(*({ varray_type const _va = (VA); \
const size_t _n = (N); \
if (_n >= _va->num_elements) \
varray_check_failed (_va, _n, __FILE__, __LINE__, __FUNCTION__); \
&_va->data.T[_n]; }))
#define VARRAY_POP(VA) do { \
varray_type const _va = (VA); \
if (_va->elements_used == 0) \
varray_underflow (_va, __FILE__, __LINE__, __FUNCTION__); \
else \
_va->elements_used--; \
} while (0)
#else
#define VARRAY_CHECK(VA, N, T) ((VA)->data.T[N])
/* Pop the top element of VA. */
#define VARRAY_POP(VA) do { ((VA)->elements_used--); } while (0)
#endif
/* Push X onto VA. T is the name of the field in varray_data
corresponding to the type of X. */
#define VARRAY_PUSH(VA, T, X) \
do \
{ \
if ((VA)->elements_used >= (VA)->num_elements) \
VARRAY_GROW ((VA), 2 * (VA)->num_elements); \
(VA)->data.T[(VA)->elements_used++] = (X); \
} \
while (0)
#define VARRAY_CHAR(VA, N) VARRAY_CHECK (VA, N, c)
#define VARRAY_UCHAR(VA, N) VARRAY_CHECK (VA, N, uc)
#define VARRAY_SHORT(VA, N) VARRAY_CHECK (VA, N, s)
#define VARRAY_USHORT(VA, N) VARRAY_CHECK (VA, N, us)
#define VARRAY_INT(VA, N) VARRAY_CHECK (VA, N, i)
#define VARRAY_UINT(VA, N) VARRAY_CHECK (VA, N, u)
#define VARRAY_LONG(VA, N) VARRAY_CHECK (VA, N, l)
#define VARRAY_ULONG(VA, N) VARRAY_CHECK (VA, N, ul)
#define VARRAY_WIDE_INT(VA, N) VARRAY_CHECK (VA, N, hint)
#define VARRAY_UWIDE_INT(VA, N) VARRAY_CHECK (VA, N, uhint)
#define VARRAY_GENERIC_PTR(VA,N) VARRAY_CHECK (VA, N, generic)
#define VARRAY_GENERIC_PTR_NOGC(VA,N) VARRAY_CHECK (VA, N, generic_nogc)
#define VARRAY_CHAR_PTR(VA,N) VARRAY_CHECK (VA, N, cptr)
#define VARRAY_RTX(VA, N) VARRAY_CHECK (VA, N, rtx)
#define VARRAY_RTVEC(VA, N) VARRAY_CHECK (VA, N, rtvec)
#define VARRAY_TREE(VA, N) VARRAY_CHECK (VA, N, tree)
#define VARRAY_BITMAP(VA, N) VARRAY_CHECK (VA, N, bitmap)
#define VARRAY_REG(VA, N) VARRAY_CHECK (VA, N, reg)
#define VARRAY_BB(VA, N) VARRAY_CHECK (VA, N, bb)
#define VARRAY_ELT_LIST(VA, N) VARRAY_CHECK (VA, N, te)
#define VARRAY_EDGE(VA, N) VARRAY_CHECK (VA, N, e)
#define VARRAY_TREE_PTR(VA, N) VARRAY_CHECK (VA, N, tp)
/* Push a new element on the end of VA, extending it if necessary. */
#define VARRAY_PUSH_CHAR(VA, X) VARRAY_PUSH (VA, c, X)
#define VARRAY_PUSH_UCHAR(VA, X) VARRAY_PUSH (VA, uc, X)
#define VARRAY_PUSH_SHORT(VA, X) VARRAY_PUSH (VA, s, X)
#define VARRAY_PUSH_USHORT(VA, X) VARRAY_PUSH (VA, us, X)
#define VARRAY_PUSH_INT(VA, X) VARRAY_PUSH (VA, i, X)
#define VARRAY_PUSH_UINT(VA, X) VARRAY_PUSH (VA, u, X)
#define VARRAY_PUSH_LONG(VA, X) VARRAY_PUSH (VA, l, X)
#define VARRAY_PUSH_ULONG(VA, X) VARRAY_PUSH (VA, ul, X)
#define VARRAY_PUSH_WIDE_INT(VA, X) VARRAY_PUSH (VA, hint, X)
#define VARRAY_PUSH_UWIDE_INT(VA, X) VARRAY_PUSH (VA, uhint, X)
#define VARRAY_PUSH_GENERIC_PTR(VA, X) VARRAY_PUSH (VA, generic, X)
#define VARRAY_PUSH_GENERIC_PTR_NOGC(VA, X) VARRAY_PUSH (VA, generic_nogc, X)
#define VARRAY_PUSH_CHAR_PTR(VA, X) VARRAY_PUSH (VA, cptr, X)
#define VARRAY_PUSH_RTX(VA, X) VARRAY_PUSH (VA, rtx, X)
#define VARRAY_PUSH_RTVEC(VA, X) VARRAY_PUSH (VA, rtvec, X)
#define VARRAY_PUSH_TREE(VA, X) VARRAY_PUSH (VA, tree, X)
#define VARRAY_PUSH_BITMAP(VA, X) VARRAY_PUSH (VA, bitmap, X)
#define VARRAY_PUSH_REG(VA, X) VARRAY_PUSH (VA, reg, X)
#define VARRAY_PUSH_BB(VA, X) VARRAY_PUSH (VA, bb, X)
#define VARRAY_PUSH_EDGE(VA, X) VARRAY_PUSH (VA, e, X)
#define VARRAY_PUSH_TREE_PTR(VA, X) VARRAY_PUSH (VA, tp, X)
/* Return the last element of VA. */
#define VARRAY_TOP(VA, T) VARRAY_CHECK(VA, (VA)->elements_used - 1, T)
#define VARRAY_TOP_CHAR(VA) VARRAY_TOP (VA, c)
#define VARRAY_TOP_UCHAR(VA) VARRAY_TOP (VA, uc)
#define VARRAY_TOP_SHORT(VA) VARRAY_TOP (VA, s)
#define VARRAY_TOP_USHORT(VA) VARRAY_TOP (VA, us)
#define VARRAY_TOP_INT(VA) VARRAY_TOP (VA, i)
#define VARRAY_TOP_UINT(VA) VARRAY_TOP (VA, u)
#define VARRAY_TOP_LONG(VA) VARRAY_TOP (VA, l)
#define VARRAY_TOP_ULONG(VA) VARRAY_TOP (VA, ul)
#define VARRAY_TOP_WIDE_INT(VA) VARRAY_TOP (VA, hint)
#define VARRAY_TOP_UWIDE_INT(VA) VARRAY_TOP (VA, uhint)
#define VARRAY_TOP_GENERIC_PTR(VA) VARRAY_TOP (VA, generic)
#define VARRAY_TOP_GENERIC_PTR_NOGC(VA) VARRAY_TOP (VA, generic_nogc)
#define VARRAY_TOP_CHAR_PTR(VA) VARRAY_TOP (VA, cptr)
#define VARRAY_TOP_RTX(VA) VARRAY_TOP (VA, rtx)
#define VARRAY_TOP_RTVEC(VA) VARRAY_TOP (VA, rtvec)
#define VARRAY_TOP_TREE(VA) VARRAY_TOP (VA, tree)
#define VARRAY_TOP_BITMAP(VA) VARRAY_TOP (VA, bitmap)
#define VARRAY_TOP_REG(VA) VARRAY_TOP (VA, reg)
#define VARRAY_TOP_BB(VA) VARRAY_TOP (VA, bb)
#define VARRAY_TOP_EDGE(VA) VARRAY_TOP (VA, e)
#define VARRAY_TOP_TREE_PTR(VA) VARRAY_TOP (VA, tp)
#endif /* ! GCC_VARRAY_H */
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