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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/varray.c')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/varray.c | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/varray.c b/gcc-4.2.1-5666.3/gcc/varray.c deleted file mode 100644 index 9900f9e1b..000000000 --- a/gcc-4.2.1-5666.3/gcc/varray.c +++ /dev/null @@ -1,259 +0,0 @@ -/* Virtual array support. - Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006 - 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, 51 Franklin Street, Fifth Floor, Boston, - MA 02110-1301, USA. */ - -#include "config.h" -#include "system.h" -#include "coretypes.h" -#include "tm.h" -#include "toplev.h" -#include "varray.h" -#include "ggc.h" -#include "hashtab.h" - -#define VARRAY_HDR_SIZE (sizeof (struct varray_head_tag) - sizeof (varray_data)) - -#ifdef GATHER_STATISTICS - -/* Store information about each particular varray. */ -struct varray_descriptor -{ - const char *name; - int allocated; - int created; - int resized; - int copied; -}; - -/* Hashtable mapping varray names to descriptors. */ -static htab_t varray_hash; - -/* Hashtable helpers. */ -static hashval_t -hash_descriptor (const void *p) -{ - const struct varray_descriptor *d = p; - return htab_hash_pointer (d->name); -} -static int -eq_descriptor (const void *p1, const void *p2) -{ - const struct varray_descriptor *d = p1; - return d->name == p2; -} - -/* For given name, return descriptor, create new if needed. */ -static struct varray_descriptor * -varray_descriptor (const char *name) -{ - struct varray_descriptor **slot; - - if (!varray_hash) - varray_hash = htab_create (10, hash_descriptor, eq_descriptor, NULL); - - slot = (struct varray_descriptor **) - htab_find_slot_with_hash (varray_hash, name, - htab_hash_pointer (name), - 1); - if (*slot) - return *slot; - *slot = xcalloc (sizeof (**slot), 1); - (*slot)->name = name; - return *slot; -} -#endif - -/* Do not add any more non-GC items here. Please either remove or GC - those items that are not GCed. */ - -static const struct { - unsigned char size; - bool uses_ggc; -} element[NUM_VARRAY_DATA] = { - { sizeof (char), 1 }, - { sizeof (unsigned char), 1 }, - { sizeof (short), 1 }, - { sizeof (unsigned short), 1 }, - { sizeof (int), 1 }, - { sizeof (unsigned int), 1 }, - { sizeof (long), 1 }, - { sizeof (unsigned long), 1 }, - { sizeof (HOST_WIDE_INT), 1 }, - { sizeof (unsigned HOST_WIDE_INT), 1 }, - { sizeof (void *), 1 }, - { sizeof (void *), 0 }, - { sizeof (char *), 1 }, - { sizeof (struct rtx_def *), 1 }, - { sizeof (struct rtvec_def *), 1 }, - { sizeof (union tree_node *), 1 }, - { sizeof (struct bitmap_head_def *), 1 }, - { sizeof (struct reg_info_def *), 0 }, - { sizeof (struct basic_block_def *), 1 }, - { sizeof (struct elt_list *), 1 }, - { sizeof (struct edge_def *), 1 }, - { sizeof (tree *), 1 }, -}; - -/* Allocate a virtual array with NUM_ELEMENT elements, each of which is - ELEMENT_SIZE bytes long, named NAME. Array elements are zeroed. */ -varray_type -varray_init (size_t num_elements, enum varray_data_enum element_kind, - const char *name) -{ - size_t data_size = num_elements * element[element_kind].size; - varray_type ptr; -#ifdef GATHER_STATISTICS - struct varray_descriptor *desc = varray_descriptor (name); - - desc->created++; - desc->allocated += data_size + VARRAY_HDR_SIZE; -#endif - if (element[element_kind].uses_ggc) - ptr = ggc_alloc_cleared (VARRAY_HDR_SIZE + data_size); - else - ptr = xcalloc (VARRAY_HDR_SIZE + data_size, 1); - - ptr->num_elements = num_elements; - ptr->elements_used = 0; - ptr->type = element_kind; - ptr->name = name; - return ptr; -} - -/* Grow/shrink the virtual array VA to N elements. Zero any new elements - allocated. */ -varray_type -varray_grow (varray_type va, size_t n) -{ - size_t old_elements = va->num_elements; - if (n != old_elements) - { - size_t elem_size = element[va->type].size; - size_t old_data_size = old_elements * elem_size; - size_t data_size = n * elem_size; -#ifdef GATHER_STATISTICS - struct varray_descriptor *desc = varray_descriptor (va->name); - varray_type oldva = va; - - if (data_size > old_data_size) - desc->allocated += data_size - old_data_size; - desc->resized ++; -#endif - - - if (element[va->type].uses_ggc) - va = ggc_realloc (va, VARRAY_HDR_SIZE + data_size); - else - va = xrealloc (va, VARRAY_HDR_SIZE + data_size); - va->num_elements = n; - if (n > old_elements) - memset (&va->data.vdt_c[old_data_size], 0, data_size - old_data_size); -#ifdef GATHER_STATISTICS - if (oldva != va) - desc->copied++; -#endif - } - - return va; -} - -/* Reset a varray to its original state. */ -void -varray_clear (varray_type va) -{ - size_t data_size = element[va->type].size * va->num_elements; - - memset (va->data.vdt_c, 0, data_size); - va->elements_used = 0; -} - -/* Check the bounds of a varray access. */ - -#if defined ENABLE_CHECKING && (GCC_VERSION >= 2007) - -void -varray_check_failed (varray_type va, size_t n, const char *file, int line, - const char *function) -{ - internal_error ("virtual array %s[%lu]: element %lu out of bounds " - "in %s, at %s:%d", - va->name, (unsigned long) va->num_elements, (unsigned long) n, - function, trim_filename (file), line); -} - -void -varray_underflow (varray_type va, const char *file, int line, - const char *function) -{ - internal_error ("underflowed virtual array %s in %s, at %s:%d", - va->name, function, trim_filename (file), line); -} - -#endif - - -/* Output per-varray statistics. */ -#ifdef GATHER_STATISTICS - -/* Used to accumulate statistics about varray sizes. */ -struct output_info -{ - int count; - int size; -}; - -/* Called via htab_traverse. Output varray descriptor pointed out by SLOT - and update statistics. */ -static int -print_statistics (void **slot, void *b) -{ - struct varray_descriptor *d = (struct varray_descriptor *) *slot; - struct output_info *i = (struct output_info *) b; - - if (d->allocated) - { - fprintf (stderr, "%-21s %6d %10d %7d %7d\n", d->name, - d->created, d->allocated, d->resized, d->copied); - i->size += d->allocated; - i->count += d->created; - } - return 1; -} -#endif - -/* Output per-varray memory usage statistics. */ -void -dump_varray_statistics (void) -{ -#ifdef GATHER_STATISTICS - struct output_info info; - - fprintf (stderr, "\nVARRAY Kind Count Bytes Resized copied\n"); - fprintf (stderr, "-------------------------------------------------------\n"); - info.count = 0; - info.size = 0; - htab_traverse (varray_hash, print_statistics, &info); - fprintf (stderr, "-------------------------------------------------------\n"); - fprintf (stderr, "%-20s %7d %10d\n", - "Total", info.count, info.size); - fprintf (stderr, "-------------------------------------------------------\n"); -#endif -} |