/* Virtual array support.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004
+ Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
- This file is part of GNU CC.
+ This file is part of GCC.
- GNU CC is free software; you can redistribute it and/or modify it
+ 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.
- GNU CC 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.
+ 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 GNU CC; see the file COPYING. If not, write to the Free
- the Free Software Foundation, 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ 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 _VARRAY_H_
-#define _VARRAY_H_
+#ifndef GCC_VARRAY_H
+#define GCC_VARRAY_H
#ifndef HOST_WIDE_INT
#include "machmode.h"
#endif
-#ifndef __GCC_SYSTEM_H__
+#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 {
- /* 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. */
- struct rtx_def *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_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 {
- char c[1];
- unsigned char uc[1];
- short s[1];
- unsigned short us[1];
- int i[1];
- unsigned int u[1];
- long l[1];
- unsigned long ul[1];
- HOST_WIDE_INT hint[1];
- unsigned HOST_WIDE_INT uhint[1];
- PTR generic[1];
- char *cptr[1];
- struct rtx_def *rtx[1];
- struct rtvec_def *rtvec[1];
- union tree_node *tree[1];
- struct bitmap_head_def *bitmap[1];
- struct sched_info_tag *sched[1];
- struct reg_info_def *reg[1];
- struct const_equiv_data const_equiv[1];
- struct basic_block_def *bb[1];
+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. */
-typedef struct varray_head_tag {
- size_t num_elements; /* maximum element number allocated */
- size_t element_size; /* size of each data element */
+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 data; /* data elements follow, must be last */
-} *varray_type;
+ 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 PROTO ((size_t, size_t, const char *));
+extern varray_type varray_init (size_t, enum varray_data_enum, const char *);
#define VARRAY_CHAR_INIT(va, num, name) \
- va = varray_init (num, sizeof (char), name)
+ va = varray_init (num, VARRAY_DATA_C, name)
#define VARRAY_UCHAR_INIT(va, num, name) \
- va = varray_init (num, sizeof (unsigned char), name)
+ va = varray_init (num, VARRAY_DATA_UC, name)
#define VARRAY_SHORT_INIT(va, num, name) \
- va = varray_init (num, sizeof (short), name)
+ va = varray_init (num, VARRAY_DATA_S, name)
#define VARRAY_USHORT_INIT(va, num, name) \
- va = varray_init (num, sizeof (unsigned short), name)
+ va = varray_init (num, VARRAY_DATA_US, name)
#define VARRAY_INT_INIT(va, num, name) \
- va = varray_init (num, sizeof (int), name)
+ va = varray_init (num, VARRAY_DATA_I, name)
#define VARRAY_UINT_INIT(va, num, name) \
- va = varray_init (num, sizeof (unsigned int), name)
+ va = varray_init (num, VARRAY_DATA_U, name)
#define VARRAY_LONG_INIT(va, num, name) \
- va = varray_init (num, sizeof (long), name)
+ va = varray_init (num, VARRAY_DATA_L, name)
#define VARRAY_ULONG_INIT(va, num, name) \
- va = varray_init (num, sizeof (unsigned long), name)
+ va = varray_init (num, VARRAY_DATA_UL, name)
#define VARRAY_WIDE_INT_INIT(va, num, name) \
- va = varray_init (num, sizeof (HOST_WIDE_INT), name)
+ va = varray_init (num, VARRAY_DATA_HINT, name)
#define VARRAY_UWIDE_INT_INIT(va, num, name) \
- va = varray_init (num, sizeof (unsigned HOST_WIDE_INT), name)
+ va = varray_init (num, VARRAY_DATA_UHINT, name)
#define VARRAY_GENERIC_PTR_INIT(va, num, name) \
- va = varray_init (num, sizeof (PTR), 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, sizeof (char *), name)
+ va = varray_init (num, VARRAY_DATA_CPTR, name)
#define VARRAY_RTX_INIT(va, num, name) \
- va = varray_init (num, sizeof (struct rtx_def *), name)
+ va = varray_init (num, VARRAY_DATA_RTX, name)
#define VARRAY_RTVEC_INIT(va, num, name) \
- va = varray_init (num, sizeof (struct rtvec_def), name)
+ va = varray_init (num, VARRAY_DATA_RTVEC, name)
#define VARRAY_TREE_INIT(va, num, name) \
- va = varray_init (num, sizeof (union tree_node *), name)
+ va = varray_init (num, VARRAY_DATA_TREE, name)
#define VARRAY_BITMAP_INIT(va, num, name) \
- va = varray_init (num, sizeof (struct bitmap_head_def *), name)
-
-#define VARRAY_SCHED_INIT(va, num, name) \
- va = varray_init (num, sizeof (struct sched_info_tag *), name)
+ va = varray_init (num, VARRAY_DATA_BITMAP, name)
#define VARRAY_REG_INIT(va, num, name) \
- va = varray_init (num, sizeof (struct reg_info_def *), name)
-
-#define VARRAY_CONST_EQUIV_INIT(va, num, name) \
- va = varray_init (num, sizeof (struct const_equiv_data), name)
+ va = varray_init (num, VARRAY_DATA_REG, name)
#define VARRAY_BB_INIT(va, num, name) \
- va = varray_init (num, sizeof (struct basic_block_def *), 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)
+ 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 PROTO((varray_type, size_t));
+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 PROTO ((varray_type, size_t,
- const char *, int,
- const char *)) ATTRIBUTE_NORETURN;
-#define VARRAY_CHECK(VA, N, T) \
-(*({ varray_type _va = VA; \
- size_t _n = N; \
+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__, \
- __PRETTY_FUNCTION__); \
+ 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_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_SCHED(VA, N) VARRAY_CHECK (VA, N, sched)
#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)
-
-#endif /* _VARRAY_H_ */
+#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 */