[thirdparty/gcc.git] / gcc / varray.h

/* 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

/* Auxiliary structure used inside the varray structure, used for
   function integration data.  */

struct const_equiv_data GTY(()) {
  /* Map pseudo reg number in calling function to equivalent constant.  We
     cannot in general substitute constants into parameter pseudo registers,
     since some machine descriptions (many RISCs) won't always handle
     the resulting insns.  So if an incoming parameter has a constant
     equivalent, we record it here, and if the resulting insn is
     recognizable, we go with it.

     We also use this mechanism to convert references to incoming arguments
     and stacked variables.  copy_rtx_and_substitute will replace the virtual
     incoming argument and virtual stacked variables registers with new
     pseudos that contain pointers into the replacement area allocated for
     this inline instance.  These pseudos are then marked as being equivalent
     to the appropriate address and substituted if valid.  */
  rtx rtx;

  /* Record the valid age for each entry.  The entry is invalid if its
     age is less than const_age.  */
  unsigned age;
};

/* 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_CPTR,
  VARRAY_DATA_RTX,
  VARRAY_DATA_RTVEC,
  VARRAY_DATA_TREE,
  VARRAY_DATA_BITMAP,
  VARRAY_DATA_REG,
  VARRAY_DATA_CONST_EQUIV,
  VARRAY_DATA_BB,
  VARRAY_DATA_TE,
  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];
  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 const_equiv_data GTY ((length ("%0.num_elements"),
			tag ("VARRAY_DATA_CONST_EQUIV")))	const_equiv[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];
} 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_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_CONST_EQUIV_INIT(va, num, name) \
  va = varray_init (num, VARRAY_DATA_CONST_EQUIV, 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)

/* 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_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_CONST_EQUIV(VA, N)	VARRAY_CHECK (VA, N, const_equiv)
#define VARRAY_BB(VA, N)		VARRAY_CHECK (VA, N, bb)
#define VARRAY_ELT_LIST(VA, N)		VARRAY_CHECK (VA, N, te)

/* 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_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_CONST_EQUIV(VA, X)	VARRAY_PUSH (VA, const_equiv, X)
#define VARRAY_PUSH_BB(VA, X)		VARRAY_PUSH (VA, bb, 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_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_CONST_EQUIV(VA)	VARRAY_TOP (VA, const_equiv)
#define VARRAY_TOP_BB(VA)		VARRAY_TOP (VA, bb)

#endif /* ! GCC_VARRAY_H */
Commit	Line	Data
848205e6	1	/* Virtual array support.
d9221e01	2	Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004
2e1eedd6	3	Free Software Foundation, Inc.
848205e6 MM	4	Contributed by Cygnus Solutions.
848205e6 MM	5
1322177d	6	This file is part of GCC.
848205e6	7
1322177d	8	GCC is free software; you can redistribute it and/or modify it
848205e6 MM	9	under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2, or (at your option)
	11	any later version.
	12
1322177d LB	13	GCC is distributed in the hope that it will be useful, but WITHOUT
	14	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	15	or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
	16	License for more details.
848205e6 MM	17
848205e6 MM	18	You should have received a copy of the GNU General Public License
1322177d LB	19	along with GCC; see the file COPYING. If not, write to the Free
	20	the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
	21	MA 02111-1307, USA. */
848205e6	22
88657302 RH	23	#ifndef GCC_VARRAY_H
88657302 RH	24	#define GCC_VARRAY_H
848205e6	25
848205e6 MM	26	#ifndef HOST_WIDE_INT
	27	#include "machmode.h"
	28	#endif
	29
88657302	30	#ifndef GCC_SYSTEM_H
4dfb04c6	31	#include "system.h"
4977bab6 ZW	32	#include "coretypes.h"
4977bab6 ZW	33	#include "tm.h"
4dfb04c6 MM	34	#endif
4dfb04c6 MM	35
c68da89c KR	36	/* Auxiliary structure used inside the varray structure, used for
	37	function integration data. */
	38
e2500fed	39	struct const_equiv_data GTY(()) {
c68da89c KR	40	/* Map pseudo reg number in calling function to equivalent constant. We
	41	cannot in general substitute constants into parameter pseudo registers,
	42	since some machine descriptions (many RISCs) won't always handle
	43	the resulting insns. So if an incoming parameter has a constant
	44	equivalent, we record it here, and if the resulting insn is
	45	recognizable, we go with it.
	46
	47	We also use this mechanism to convert references to incoming arguments
	48	and stacked variables. copy_rtx_and_substitute will replace the virtual
	49	incoming argument and virtual stacked variables registers with new
	50	pseudos that contain pointers into the replacement area allocated for
	51	this inline instance. These pseudos are then marked as being equivalent
	52	to the appropriate address and substituted if valid. */
bcda12f4	53	rtx rtx;
c68da89c KR	54
	55	/* Record the valid age for each entry. The entry is invalid if its
	56	age is less than const_age. */
	57	unsigned age;
	58	};
	59
2e1eedd6	60	/* Enum indicating what the varray contains.
19a7414e	61	If this is changed, `element' in varray.c needs to be updated. */
e2500fed GK	62
	63	enum varray_data_enum {
	64	VARRAY_DATA_C,
	65	VARRAY_DATA_UC,
	66	VARRAY_DATA_S,
	67	VARRAY_DATA_US,
	68	VARRAY_DATA_I,
	69	VARRAY_DATA_U,
	70	VARRAY_DATA_L,
	71	VARRAY_DATA_UL,
	72	VARRAY_DATA_HINT,
	73	VARRAY_DATA_UHINT,
	74	VARRAY_DATA_GENERIC,
	75	VARRAY_DATA_CPTR,
	76	VARRAY_DATA_RTX,
	77	VARRAY_DATA_RTVEC,
	78	VARRAY_DATA_TREE,
	79	VARRAY_DATA_BITMAP,
	80	VARRAY_DATA_REG,
	81	VARRAY_DATA_CONST_EQUIV,
	82	VARRAY_DATA_BB,
	83	VARRAY_DATA_TE,
	84	NUM_VARRAY_DATA
	85	};
	86
848205e6	87	/* Union of various array types that are used. */
e2500fed GK	88	typedef union varray_data_tag GTY (()) {
	89	char GTY ((length ("%0.num_elements"),
	90	tag ("VARRAY_DATA_C"))) c[1];
	91	unsigned char GTY ((length ("%0.num_elements"),
	92	tag ("VARRAY_DATA_UC"))) uc[1];
	93	short GTY ((length ("%0.num_elements"),
	94	tag ("VARRAY_DATA_S"))) s[1];
	95	unsigned short GTY ((length ("%0.num_elements"),
	96	tag ("VARRAY_DATA_US"))) us[1];
	97	int GTY ((length ("%0.num_elements"),
	98	tag ("VARRAY_DATA_I"))) i[1];
	99	unsigned int GTY ((length ("%0.num_elements"),
	100	tag ("VARRAY_DATA_U"))) u[1];
	101	long GTY ((length ("%0.num_elements"),
	102	tag ("VARRAY_DATA_L"))) l[1];
	103	unsigned long GTY ((length ("%0.num_elements"),
	104	tag ("VARRAY_DATA_UL"))) ul[1];
	105	HOST_WIDE_INT GTY ((length ("%0.num_elements"),
	106	tag ("VARRAY_DATA_HINT"))) hint[1];
	107	unsigned HOST_WIDE_INT GTY ((length ("%0.num_elements"),
	108	tag ("VARRAY_DATA_UHINT"))) uhint[1];
	109	PTR GTY ((length ("%0.num_elements"), use_param (""),
	110	tag ("VARRAY_DATA_GENERIC"))) generic[1];
	111	char *GTY ((length ("%0.num_elements"),
	112	tag ("VARRAY_DATA_CPTR"))) cptr[1];
bcda12f4	113	rtx GTY ((length ("%0.num_elements"),
e2500fed	114	tag ("VARRAY_DATA_RTX"))) rtx[1];
bcda12f4	115	rtvec GTY ((length ("%0.num_elements"),
e2500fed	116	tag ("VARRAY_DATA_RTVEC"))) rtvec[1];
bcda12f4	117	tree GTY ((length ("%0.num_elements"),
e2500fed GK	118	tag ("VARRAY_DATA_TREE"))) tree[1];
	119	struct bitmap_head_def *GTY ((length ("%0.num_elements"),
	120	tag ("VARRAY_DATA_BITMAP"))) bitmap[1];
	121	struct reg_info_def *GTY ((length ("%0.num_elements"), skip (""),
	122	tag ("VARRAY_DATA_REG"))) reg[1];
	123	struct const_equiv_data GTY ((length ("%0.num_elements"),
2e1eedd6	124	tag ("VARRAY_DATA_CONST_EQUIV"))) const_equiv[1];
e2500fed GK	125	struct basic_block_def *GTY ((length ("%0.num_elements"), skip (""),
	126	tag ("VARRAY_DATA_BB"))) bb[1];
	127	struct elt_list *GTY ((length ("%0.num_elements"),
	128	tag ("VARRAY_DATA_TE"))) te[1];
848205e6 MM	129	} varray_data;
	130
	131	/* Virtual array of pointers header. */
e2500fed GK	132	struct varray_head_tag GTY(()) {
	133	size_t num_elements; /* Maximum element number allocated. */
	134	size_t elements_used; /* The number of elements used, if
a6873608	135	using VARRAY_PUSH/VARRAY_POP. */
e2500fed	136	enum varray_data_enum type; /* The kind of elements in the varray. */
848205e6	137	const char name; / name of the varray for reporting errors */
2e1eedd6	138	varray_data GTY ((desc ("%0.type"))) data; /* The data elements follow,
e2500fed GK	139	must be last. */
	140	};
	141	typedef struct varray_head_tag *varray_type;
848205e6 MM	142
	143	/* Allocate a virtual array with NUM elements, each of which is SIZE bytes
	144	long, named NAME. Array elements are zeroed. */
2e1eedd6	145	extern varray_type varray_init (size_t, enum varray_data_enum, const char *);
848205e6 MM	146
848205e6 MM	147	#define VARRAY_CHAR_INIT(va, num, name) \
e2500fed	148	va = varray_init (num, VARRAY_DATA_C, name)
848205e6 MM	149
848205e6 MM	150	#define VARRAY_UCHAR_INIT(va, num, name) \
e2500fed	151	va = varray_init (num, VARRAY_DATA_UC, name)
848205e6 MM	152
848205e6 MM	153	#define VARRAY_SHORT_INIT(va, num, name) \
e2500fed	154	va = varray_init (num, VARRAY_DATA_S, name)
848205e6 MM	155
848205e6 MM	156	#define VARRAY_USHORT_INIT(va, num, name) \
e2500fed	157	va = varray_init (num, VARRAY_DATA_US, name)
848205e6 MM	158
848205e6 MM	159	#define VARRAY_INT_INIT(va, num, name) \
e2500fed	160	va = varray_init (num, VARRAY_DATA_I, name)
848205e6 MM	161
848205e6 MM	162	#define VARRAY_UINT_INIT(va, num, name) \
e2500fed	163	va = varray_init (num, VARRAY_DATA_U, name)
848205e6 MM	164
848205e6 MM	165	#define VARRAY_LONG_INIT(va, num, name) \
e2500fed	166	va = varray_init (num, VARRAY_DATA_L, name)
848205e6 MM	167
848205e6 MM	168	#define VARRAY_ULONG_INIT(va, num, name) \
e2500fed	169	va = varray_init (num, VARRAY_DATA_UL, name)
848205e6 MM	170
848205e6 MM	171	#define VARRAY_WIDE_INT_INIT(va, num, name) \
e2500fed	172	va = varray_init (num, VARRAY_DATA_HINT, name)
848205e6 MM	173
848205e6 MM	174	#define VARRAY_UWIDE_INT_INIT(va, num, name) \
e2500fed	175	va = varray_init (num, VARRAY_DATA_UHINT, name)
848205e6 MM	176
848205e6 MM	177	#define VARRAY_GENERIC_PTR_INIT(va, num, name) \
e2500fed	178	va = varray_init (num, VARRAY_DATA_GENERIC, name)
848205e6 MM	179
848205e6 MM	180	#define VARRAY_CHAR_PTR_INIT(va, num, name) \
e2500fed	181	va = varray_init (num, VARRAY_DATA_CPTR, name)
848205e6 MM	182
848205e6 MM	183	#define VARRAY_RTX_INIT(va, num, name) \
e2500fed	184	va = varray_init (num, VARRAY_DATA_RTX, name)
848205e6 MM	185
848205e6 MM	186	#define VARRAY_RTVEC_INIT(va, num, name) \
e2500fed	187	va = varray_init (num, VARRAY_DATA_RTVEC, name)
848205e6 MM	188
848205e6 MM	189	#define VARRAY_TREE_INIT(va, num, name) \
e2500fed	190	va = varray_init (num, VARRAY_DATA_TREE, name)
848205e6 MM	191
848205e6 MM	192	#define VARRAY_BITMAP_INIT(va, num, name) \
e2500fed	193	va = varray_init (num, VARRAY_DATA_BITMAP, name)
848205e6 MM	194
848205e6 MM	195	#define VARRAY_REG_INIT(va, num, name) \
e2500fed	196	va = varray_init (num, VARRAY_DATA_REG, name)
848205e6	197
c68da89c	198	#define VARRAY_CONST_EQUIV_INIT(va, num, name) \
e2500fed	199	va = varray_init (num, VARRAY_DATA_CONST_EQUIV, name)
c68da89c	200
e881bb1b	201	#define VARRAY_BB_INIT(va, num, name) \
e2500fed	202	va = varray_init (num, VARRAY_DATA_BB, name)
e881bb1b	203
eab5c70a	204	#define VARRAY_ELT_LIST_INIT(va, num, name) \
e2500fed	205	va = varray_init (num, VARRAY_DATA_TE, name)
eab5c70a	206
848205e6 MM	207	/* Free up memory allocated by the virtual array, but do not free any of the
848205e6 MM	208	elements involved. */
804a4e13	209	#define VARRAY_FREE(vp) \
e9d1b155	210	do { if (vp) { free (vp); vp = (varray_type) 0; } } while (0)
848205e6 MM	211
848205e6 MM	212	/* Grow/shrink the virtual array VA to N elements. */
2e1eedd6	213	extern varray_type varray_grow (varray_type, size_t);
848205e6 MM	214
	215	#define VARRAY_GROW(VA, N) ((VA) = varray_grow (VA, N))
	216
c68da89c KR	217	#define VARRAY_SIZE(VA) ((VA)->num_elements)
c68da89c KR	218
4c85a96d RH	219	#define VARRAY_ACTIVE_SIZE(VA) ((VA)->elements_used)
	220	#define VARRAY_POP_ALL(VA) ((VA)->elements_used = 0)
	221
e2500fed GK	222	#define VARRAY_CLEAR(VA) varray_clear(VA)
e2500fed GK	223
2e1eedd6	224	extern void varray_clear (varray_type);
e2500fed	225
9b57b627 JH	226	extern void dump_varray_statistics (void);
9b57b627 JH	227
987009bf	228	/* Check for VARRAY_xxx macros being in bound. */
6c9821b7	229	#if defined ENABLE_CHECKING && (GCC_VERSION >= 2007)
2e1eedd6 AJ	230	extern void varray_check_failed (varray_type, size_t, const char *, int,
2e1eedd6 AJ	231	const char *) ATTRIBUTE_NORETURN;
12a08b40 ZW	232	extern void varray_underflow (varray_type, const char , int, const char )
12a08b40 ZW	233	ATTRIBUTE_NORETURN;
8784fdcd	234	#define VARRAY_CHECK(VA, N, T) __extension__ \
d8750784	235	(*({ varray_type const _va = (VA); \
2e1eedd6	236	const size_t _n = (N); \
987009bf	237	if (_n >= _va->num_elements) \
fbfc1192	238	varray_check_failed (_va, _n, __FILE__, __LINE__, __FUNCTION__); \
987009bf	239	&_va->data.T[_n]; }))
12a08b40 ZW	240
	241	#define VARRAY_POP(VA) do { \
	242	varray_type const _va = (VA); \
	243	if (_va->elements_used == 0) \
	244	varray_underflow (_va, __FILE__, __LINE__, __FUNCTION__); \
	245	else \
	246	_va->elements_used--; \
	247	} while (0)
	248
848205e6	249	#else
987009bf	250	#define VARRAY_CHECK(VA, N, T) ((VA)->data.T[N])
12a08b40 ZW	251	/* Pop the top element of VA. */
12a08b40 ZW	252	#define VARRAY_POP(VA) do { ((VA)->elements_used--); } while (0)
848205e6 MM	253	#endif
848205e6 MM	254
a6873608 MM	255	/* Push X onto VA. T is the name of the field in varray_data
a6873608 MM	256	corresponding to the type of X. */
41077ce4 KH	257	#define VARRAY_PUSH(VA, T, X) \
41077ce4 KH	258	do \
a6873608 MM	259	{ \
	260	if ((VA)->elements_used >= (VA)->num_elements) \
	261	VARRAY_GROW ((VA), 2 * (VA)->num_elements); \
	262	(VA)->data.T[(VA)->elements_used++] = (X); \
	263	} \
	264	while (0)
	265
987009bf ZW	266	#define VARRAY_CHAR(VA, N) VARRAY_CHECK (VA, N, c)
	267	#define VARRAY_UCHAR(VA, N) VARRAY_CHECK (VA, N, uc)
	268	#define VARRAY_SHORT(VA, N) VARRAY_CHECK (VA, N, s)
	269	#define VARRAY_USHORT(VA, N) VARRAY_CHECK (VA, N, us)
	270	#define VARRAY_INT(VA, N) VARRAY_CHECK (VA, N, i)
	271	#define VARRAY_UINT(VA, N) VARRAY_CHECK (VA, N, u)
	272	#define VARRAY_LONG(VA, N) VARRAY_CHECK (VA, N, l)
	273	#define VARRAY_ULONG(VA, N) VARRAY_CHECK (VA, N, ul)
	274	#define VARRAY_WIDE_INT(VA, N) VARRAY_CHECK (VA, N, hint)
	275	#define VARRAY_UWIDE_INT(VA, N) VARRAY_CHECK (VA, N, uhint)
	276	#define VARRAY_GENERIC_PTR(VA,N) VARRAY_CHECK (VA, N, generic)
	277	#define VARRAY_CHAR_PTR(VA,N) VARRAY_CHECK (VA, N, cptr)
	278	#define VARRAY_RTX(VA, N) VARRAY_CHECK (VA, N, rtx)
	279	#define VARRAY_RTVEC(VA, N) VARRAY_CHECK (VA, N, rtvec)
	280	#define VARRAY_TREE(VA, N) VARRAY_CHECK (VA, N, tree)
	281	#define VARRAY_BITMAP(VA, N) VARRAY_CHECK (VA, N, bitmap)
987009bf ZW	282	#define VARRAY_REG(VA, N) VARRAY_CHECK (VA, N, reg)
	283	#define VARRAY_CONST_EQUIV(VA, N) VARRAY_CHECK (VA, N, const_equiv)
	284	#define VARRAY_BB(VA, N) VARRAY_CHECK (VA, N, bb)
eab5c70a	285	#define VARRAY_ELT_LIST(VA, N) VARRAY_CHECK (VA, N, te)
848205e6	286
a6873608 MM	287	/* Push a new element on the end of VA, extending it if necessary. */
	288	#define VARRAY_PUSH_CHAR(VA, X) VARRAY_PUSH (VA, c, X)
	289	#define VARRAY_PUSH_UCHAR(VA, X) VARRAY_PUSH (VA, uc, X)
	290	#define VARRAY_PUSH_SHORT(VA, X) VARRAY_PUSH (VA, s, X)
	291	#define VARRAY_PUSH_USHORT(VA, X) VARRAY_PUSH (VA, us, X)
	292	#define VARRAY_PUSH_INT(VA, X) VARRAY_PUSH (VA, i, X)
	293	#define VARRAY_PUSH_UINT(VA, X) VARRAY_PUSH (VA, u, X)
	294	#define VARRAY_PUSH_LONG(VA, X) VARRAY_PUSH (VA, l, X)
	295	#define VARRAY_PUSH_ULONG(VA, X) VARRAY_PUSH (VA, ul, X)
	296	#define VARRAY_PUSH_WIDE_INT(VA, X) VARRAY_PUSH (VA, hint, X)
	297	#define VARRAY_PUSH_UWIDE_INT(VA, X) VARRAY_PUSH (VA, uhint, X)
ee418a77 SC	298	#define VARRAY_PUSH_GENERIC_PTR(VA, X) VARRAY_PUSH (VA, generic, X)
ee418a77 SC	299	#define VARRAY_PUSH_CHAR_PTR(VA, X) VARRAY_PUSH (VA, cptr, X)
a6873608 MM	300	#define VARRAY_PUSH_RTX(VA, X) VARRAY_PUSH (VA, rtx, X)
	301	#define VARRAY_PUSH_RTVEC(VA, X) VARRAY_PUSH (VA, rtvec, X)
	302	#define VARRAY_PUSH_TREE(VA, X) VARRAY_PUSH (VA, tree, X)
	303	#define VARRAY_PUSH_BITMAP(VA, X) VARRAY_PUSH (VA, bitmap, X)
a6873608 MM	304	#define VARRAY_PUSH_REG(VA, X) VARRAY_PUSH (VA, reg, X)
	305	#define VARRAY_PUSH_CONST_EQUIV(VA, X) VARRAY_PUSH (VA, const_equiv, X)
	306	#define VARRAY_PUSH_BB(VA, X) VARRAY_PUSH (VA, bb, X)
	307
	308	/* Return the last element of VA. */
12a08b40 ZW	309	#define VARRAY_TOP(VA, T) VARRAY_CHECK(VA, (VA)->elements_used - 1, T)
12a08b40 ZW	310
a6873608 MM	311	#define VARRAY_TOP_CHAR(VA) VARRAY_TOP (VA, c)
	312	#define VARRAY_TOP_UCHAR(VA) VARRAY_TOP (VA, uc)
	313	#define VARRAY_TOP_SHORT(VA) VARRAY_TOP (VA, s)
	314	#define VARRAY_TOP_USHORT(VA) VARRAY_TOP (VA, us)
	315	#define VARRAY_TOP_INT(VA) VARRAY_TOP (VA, i)
	316	#define VARRAY_TOP_UINT(VA) VARRAY_TOP (VA, u)
	317	#define VARRAY_TOP_LONG(VA) VARRAY_TOP (VA, l)
	318	#define VARRAY_TOP_ULONG(VA) VARRAY_TOP (VA, ul)
	319	#define VARRAY_TOP_WIDE_INT(VA) VARRAY_TOP (VA, hint)
	320	#define VARRAY_TOP_UWIDE_INT(VA) VARRAY_TOP (VA, uhint)
0cf97c8b NS	321	#define VARRAY_TOP_GENERIC_PTR(VA) VARRAY_TOP (VA, generic)
0cf97c8b NS	322	#define VARRAY_TOP_CHAR_PTR(VA) VARRAY_TOP (VA, cptr)
a6873608 MM	323	#define VARRAY_TOP_RTX(VA) VARRAY_TOP (VA, rtx)
	324	#define VARRAY_TOP_RTVEC(VA) VARRAY_TOP (VA, rtvec)
	325	#define VARRAY_TOP_TREE(VA) VARRAY_TOP (VA, tree)
	326	#define VARRAY_TOP_BITMAP(VA) VARRAY_TOP (VA, bitmap)
a6873608 MM	327	#define VARRAY_TOP_REG(VA) VARRAY_TOP (VA, reg)
	328	#define VARRAY_TOP_CONST_EQUIV(VA) VARRAY_TOP (VA, const_equiv)
	329	#define VARRAY_TOP_BB(VA) VARRAY_TOP (VA, bb)
	330
88657302	331	#endif /* ! GCC_VARRAY_H */