/* Simple bitmaps.
|
/* Simple bitmaps.
|
Copyright (C) 1999, 2000, 2002, 2003, 2004, 2006, 2007, 2008
|
Copyright (C) 1999, 2000, 2002, 2003, 2004, 2006, 2007, 2008
|
Free Software Foundation, Inc.
|
Free Software Foundation, Inc.
|
|
|
This file is part of GCC.
|
This file is part of GCC.
|
|
|
GCC is free software; you can redistribute it and/or modify it under
|
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
|
the terms of the GNU General Public License as published by the Free
|
Software Foundation; either version 3, or (at your option) any later
|
Software Foundation; either version 3, or (at your option) any later
|
version.
|
version.
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
for more details.
|
for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING3. If not see
|
along with GCC; see the file COPYING3. If not see
|
<http://www.gnu.org/licenses/>. */
|
<http://www.gnu.org/licenses/>. */
|
|
|
#include "config.h"
|
#include "config.h"
|
#include "system.h"
|
#include "system.h"
|
#include "coretypes.h"
|
#include "coretypes.h"
|
#include "tm.h"
|
#include "tm.h"
|
#include "rtl.h"
|
#include "rtl.h"
|
#include "flags.h"
|
#include "flags.h"
|
#include "hard-reg-set.h"
|
#include "hard-reg-set.h"
|
#include "obstack.h"
|
#include "obstack.h"
|
#include "basic-block.h"
|
#include "basic-block.h"
|
|
|
#if GCC_VERSION >= 3400
|
#if GCC_VERSION >= 3400
|
#if HOST_BITS_PER_WIDEST_FAST_INT == HOST_BITS_PER_LONG
|
#if HOST_BITS_PER_WIDEST_FAST_INT == HOST_BITS_PER_LONG
|
#define do_popcount(x) __builtin_popcountl(x)
|
#define do_popcount(x) __builtin_popcountl(x)
|
#elif HOST_BITS_PER_WIDEST_FAST_INT == HOST_BITS_PER_LONGLONG
|
#elif HOST_BITS_PER_WIDEST_FAST_INT == HOST_BITS_PER_LONGLONG
|
#define do_popcount(x) __builtin_popcountll(x)
|
#define do_popcount(x) __builtin_popcountll(x)
|
#else
|
#else
|
#error "internal error: sbitmap.h and hwint.h are inconsistent"
|
#error "internal error: sbitmap.h and hwint.h are inconsistent"
|
#endif
|
#endif
|
#else
|
#else
|
static unsigned long sbitmap_elt_popcount (SBITMAP_ELT_TYPE);
|
static unsigned long sbitmap_elt_popcount (SBITMAP_ELT_TYPE);
|
#define do_popcount(x) sbitmap_elt_popcount((x))
|
#define do_popcount(x) sbitmap_elt_popcount((x))
|
#endif
|
#endif
|
|
|
/* This macro controls debugging that is as expensive as the
|
/* This macro controls debugging that is as expensive as the
|
operations it verifies. */
|
operations it verifies. */
|
|
|
/* #define BITMAP_DEBUGGING */
|
/* #define BITMAP_DEBUGGING */
|
#ifdef BITMAP_DEBUGGING
|
#ifdef BITMAP_DEBUGGING
|
|
|
/* Verify the population count of sbitmap A matches the cached value,
|
/* Verify the population count of sbitmap A matches the cached value,
|
if there is a cached value. */
|
if there is a cached value. */
|
|
|
void
|
void
|
sbitmap_verify_popcount (const_sbitmap a)
|
sbitmap_verify_popcount (const_sbitmap a)
|
{
|
{
|
unsigned ix;
|
unsigned ix;
|
unsigned int lastword;
|
unsigned int lastword;
|
|
|
if (!a->popcount)
|
if (!a->popcount)
|
return;
|
return;
|
|
|
lastword = a->size;
|
lastword = a->size;
|
for (ix = 0; ix < lastword; ix++)
|
for (ix = 0; ix < lastword; ix++)
|
gcc_assert (a->popcount[ix] == do_popcount (a->elms[ix]));
|
gcc_assert (a->popcount[ix] == do_popcount (a->elms[ix]));
|
}
|
}
|
#endif
|
#endif
|
|
|
/* Bitmap manipulation routines. */
|
/* Bitmap manipulation routines. */
|
|
|
/* Allocate a simple bitmap of N_ELMS bits. */
|
/* Allocate a simple bitmap of N_ELMS bits. */
|
|
|
sbitmap
|
sbitmap
|
sbitmap_alloc (unsigned int n_elms)
|
sbitmap_alloc (unsigned int n_elms)
|
{
|
{
|
unsigned int bytes, size, amt;
|
unsigned int bytes, size, amt;
|
sbitmap bmap;
|
sbitmap bmap;
|
|
|
size = SBITMAP_SET_SIZE (n_elms);
|
size = SBITMAP_SET_SIZE (n_elms);
|
bytes = size * sizeof (SBITMAP_ELT_TYPE);
|
bytes = size * sizeof (SBITMAP_ELT_TYPE);
|
amt = (sizeof (struct simple_bitmap_def)
|
amt = (sizeof (struct simple_bitmap_def)
|
+ bytes - sizeof (SBITMAP_ELT_TYPE));
|
+ bytes - sizeof (SBITMAP_ELT_TYPE));
|
bmap = (sbitmap) xmalloc (amt);
|
bmap = (sbitmap) xmalloc (amt);
|
bmap->n_bits = n_elms;
|
bmap->n_bits = n_elms;
|
bmap->size = size;
|
bmap->size = size;
|
bmap->popcount = NULL;
|
bmap->popcount = NULL;
|
return bmap;
|
return bmap;
|
}
|
}
|
|
|
/* Allocate a simple bitmap of N_ELMS bits, and a popcount array. */
|
/* Allocate a simple bitmap of N_ELMS bits, and a popcount array. */
|
|
|
sbitmap
|
sbitmap
|
sbitmap_alloc_with_popcount (unsigned int n_elms)
|
sbitmap_alloc_with_popcount (unsigned int n_elms)
|
{
|
{
|
sbitmap const bmap = sbitmap_alloc (n_elms);
|
sbitmap const bmap = sbitmap_alloc (n_elms);
|
bmap->popcount = XNEWVEC (unsigned char, bmap->size);
|
bmap->popcount = XNEWVEC (unsigned char, bmap->size);
|
return bmap;
|
return bmap;
|
}
|
}
|
|
|
/* Resize a simple bitmap BMAP to N_ELMS bits. If increasing the
|
/* Resize a simple bitmap BMAP to N_ELMS bits. If increasing the
|
size of BMAP, clear the new bits to zero if the DEF argument
|
size of BMAP, clear the new bits to zero if the DEF argument
|
is zero, and set them to one otherwise. */
|
is zero, and set them to one otherwise. */
|
|
|
sbitmap
|
sbitmap
|
sbitmap_resize (sbitmap bmap, unsigned int n_elms, int def)
|
sbitmap_resize (sbitmap bmap, unsigned int n_elms, int def)
|
{
|
{
|
unsigned int bytes, size, amt;
|
unsigned int bytes, size, amt;
|
unsigned int last_bit;
|
unsigned int last_bit;
|
|
|
size = SBITMAP_SET_SIZE (n_elms);
|
size = SBITMAP_SET_SIZE (n_elms);
|
bytes = size * sizeof (SBITMAP_ELT_TYPE);
|
bytes = size * sizeof (SBITMAP_ELT_TYPE);
|
if (bytes > SBITMAP_SIZE_BYTES (bmap))
|
if (bytes > SBITMAP_SIZE_BYTES (bmap))
|
{
|
{
|
amt = (sizeof (struct simple_bitmap_def)
|
amt = (sizeof (struct simple_bitmap_def)
|
+ bytes - sizeof (SBITMAP_ELT_TYPE));
|
+ bytes - sizeof (SBITMAP_ELT_TYPE));
|
bmap = (sbitmap) xrealloc (bmap, amt);
|
bmap = (sbitmap) xrealloc (bmap, amt);
|
if (bmap->popcount)
|
if (bmap->popcount)
|
bmap->popcount = XRESIZEVEC (unsigned char, bmap->popcount, size);
|
bmap->popcount = XRESIZEVEC (unsigned char, bmap->popcount, size);
|
}
|
}
|
|
|
if (n_elms > bmap->n_bits)
|
if (n_elms > bmap->n_bits)
|
{
|
{
|
if (def)
|
if (def)
|
{
|
{
|
memset (bmap->elms + bmap->size, -1,
|
memset (bmap->elms + bmap->size, -1,
|
bytes - SBITMAP_SIZE_BYTES (bmap));
|
bytes - SBITMAP_SIZE_BYTES (bmap));
|
|
|
/* Set the new bits if the original last element. */
|
/* Set the new bits if the original last element. */
|
last_bit = bmap->n_bits % SBITMAP_ELT_BITS;
|
last_bit = bmap->n_bits % SBITMAP_ELT_BITS;
|
if (last_bit)
|
if (last_bit)
|
bmap->elms[bmap->size - 1]
|
bmap->elms[bmap->size - 1]
|
|= ~((SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit));
|
|= ~((SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit));
|
|
|
/* Clear the unused bit in the new last element. */
|
/* Clear the unused bit in the new last element. */
|
last_bit = n_elms % SBITMAP_ELT_BITS;
|
last_bit = n_elms % SBITMAP_ELT_BITS;
|
if (last_bit)
|
if (last_bit)
|
bmap->elms[size - 1]
|
bmap->elms[size - 1]
|
&= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
|
&= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
|
}
|
}
|
else
|
else
|
{
|
{
|
memset (bmap->elms + bmap->size, 0,
|
memset (bmap->elms + bmap->size, 0,
|
bytes - SBITMAP_SIZE_BYTES (bmap));
|
bytes - SBITMAP_SIZE_BYTES (bmap));
|
if (bmap->popcount)
|
if (bmap->popcount)
|
memset (bmap->popcount + bmap->size, 0,
|
memset (bmap->popcount + bmap->size, 0,
|
(size * sizeof (unsigned char))
|
(size * sizeof (unsigned char))
|
- (bmap->size * sizeof (unsigned char)));
|
- (bmap->size * sizeof (unsigned char)));
|
|
|
}
|
}
|
}
|
}
|
else if (n_elms < bmap->n_bits)
|
else if (n_elms < bmap->n_bits)
|
{
|
{
|
/* Clear the surplus bits in the last word. */
|
/* Clear the surplus bits in the last word. */
|
last_bit = n_elms % SBITMAP_ELT_BITS;
|
last_bit = n_elms % SBITMAP_ELT_BITS;
|
if (last_bit)
|
if (last_bit)
|
{
|
{
|
bmap->elms[size - 1]
|
bmap->elms[size - 1]
|
&= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
|
&= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
|
if (bmap->popcount)
|
if (bmap->popcount)
|
bmap->popcount[size - 1] = do_popcount (bmap->elms[size - 1]);
|
bmap->popcount[size - 1] = do_popcount (bmap->elms[size - 1]);
|
}
|
}
|
}
|
}
|
|
|
bmap->n_bits = n_elms;
|
bmap->n_bits = n_elms;
|
bmap->size = size;
|
bmap->size = size;
|
return bmap;
|
return bmap;
|
}
|
}
|
|
|
/* Re-allocate a simple bitmap of N_ELMS bits. New storage is uninitialized. */
|
/* Re-allocate a simple bitmap of N_ELMS bits. New storage is uninitialized. */
|
|
|
sbitmap
|
sbitmap
|
sbitmap_realloc (sbitmap src, unsigned int n_elms)
|
sbitmap_realloc (sbitmap src, unsigned int n_elms)
|
{
|
{
|
unsigned int bytes, size, amt;
|
unsigned int bytes, size, amt;
|
sbitmap bmap;
|
sbitmap bmap;
|
|
|
size = SBITMAP_SET_SIZE (n_elms);
|
size = SBITMAP_SET_SIZE (n_elms);
|
bytes = size * sizeof (SBITMAP_ELT_TYPE);
|
bytes = size * sizeof (SBITMAP_ELT_TYPE);
|
amt = (sizeof (struct simple_bitmap_def)
|
amt = (sizeof (struct simple_bitmap_def)
|
+ bytes - sizeof (SBITMAP_ELT_TYPE));
|
+ bytes - sizeof (SBITMAP_ELT_TYPE));
|
|
|
if (SBITMAP_SIZE_BYTES (src) >= bytes)
|
if (SBITMAP_SIZE_BYTES (src) >= bytes)
|
{
|
{
|
src->n_bits = n_elms;
|
src->n_bits = n_elms;
|
return src;
|
return src;
|
}
|
}
|
|
|
bmap = (sbitmap) xrealloc (src, amt);
|
bmap = (sbitmap) xrealloc (src, amt);
|
bmap->n_bits = n_elms;
|
bmap->n_bits = n_elms;
|
bmap->size = size;
|
bmap->size = size;
|
return bmap;
|
return bmap;
|
}
|
}
|
|
|
/* Allocate a vector of N_VECS bitmaps of N_ELMS bits. */
|
/* Allocate a vector of N_VECS bitmaps of N_ELMS bits. */
|
|
|
sbitmap *
|
sbitmap *
|
sbitmap_vector_alloc (unsigned int n_vecs, unsigned int n_elms)
|
sbitmap_vector_alloc (unsigned int n_vecs, unsigned int n_elms)
|
{
|
{
|
unsigned int i, bytes, offset, elm_bytes, size, amt, vector_bytes;
|
unsigned int i, bytes, offset, elm_bytes, size, amt, vector_bytes;
|
sbitmap *bitmap_vector;
|
sbitmap *bitmap_vector;
|
|
|
size = SBITMAP_SET_SIZE (n_elms);
|
size = SBITMAP_SET_SIZE (n_elms);
|
bytes = size * sizeof (SBITMAP_ELT_TYPE);
|
bytes = size * sizeof (SBITMAP_ELT_TYPE);
|
elm_bytes = (sizeof (struct simple_bitmap_def)
|
elm_bytes = (sizeof (struct simple_bitmap_def)
|
+ bytes - sizeof (SBITMAP_ELT_TYPE));
|
+ bytes - sizeof (SBITMAP_ELT_TYPE));
|
vector_bytes = n_vecs * sizeof (sbitmap *);
|
vector_bytes = n_vecs * sizeof (sbitmap *);
|
|
|
/* Round up `vector_bytes' to account for the alignment requirements
|
/* Round up `vector_bytes' to account for the alignment requirements
|
of an sbitmap. One could allocate the vector-table and set of sbitmaps
|
of an sbitmap. One could allocate the vector-table and set of sbitmaps
|
separately, but that requires maintaining two pointers or creating
|
separately, but that requires maintaining two pointers or creating
|
a cover struct to hold both pointers (so our result is still just
|
a cover struct to hold both pointers (so our result is still just
|
one pointer). Neither is a bad idea, but this is simpler for now. */
|
one pointer). Neither is a bad idea, but this is simpler for now. */
|
{
|
{
|
/* Based on DEFAULT_ALIGNMENT computation in obstack.c. */
|
/* Based on DEFAULT_ALIGNMENT computation in obstack.c. */
|
struct { char x; SBITMAP_ELT_TYPE y; } align;
|
struct { char x; SBITMAP_ELT_TYPE y; } align;
|
int alignment = (char *) & align.y - & align.x;
|
int alignment = (char *) & align.y - & align.x;
|
vector_bytes = (vector_bytes + alignment - 1) & ~ (alignment - 1);
|
vector_bytes = (vector_bytes + alignment - 1) & ~ (alignment - 1);
|
}
|
}
|
|
|
amt = vector_bytes + (n_vecs * elm_bytes);
|
amt = vector_bytes + (n_vecs * elm_bytes);
|
bitmap_vector = (sbitmap *) xmalloc (amt);
|
bitmap_vector = (sbitmap *) xmalloc (amt);
|
|
|
for (i = 0, offset = vector_bytes; i < n_vecs; i++, offset += elm_bytes)
|
for (i = 0, offset = vector_bytes; i < n_vecs; i++, offset += elm_bytes)
|
{
|
{
|
sbitmap b = (sbitmap) ((char *) bitmap_vector + offset);
|
sbitmap b = (sbitmap) ((char *) bitmap_vector + offset);
|
|
|
bitmap_vector[i] = b;
|
bitmap_vector[i] = b;
|
b->n_bits = n_elms;
|
b->n_bits = n_elms;
|
b->size = size;
|
b->size = size;
|
b->popcount = NULL;
|
b->popcount = NULL;
|
}
|
}
|
|
|
return bitmap_vector;
|
return bitmap_vector;
|
}
|
}
|
|
|
/* Copy sbitmap SRC to DST. */
|
/* Copy sbitmap SRC to DST. */
|
|
|
void
|
void
|
sbitmap_copy (sbitmap dst, const_sbitmap src)
|
sbitmap_copy (sbitmap dst, const_sbitmap src)
|
{
|
{
|
memcpy (dst->elms, src->elms, sizeof (SBITMAP_ELT_TYPE) * dst->size);
|
memcpy (dst->elms, src->elms, sizeof (SBITMAP_ELT_TYPE) * dst->size);
|
if (dst->popcount)
|
if (dst->popcount)
|
memcpy (dst->popcount, src->popcount, sizeof (unsigned char) * dst->size);
|
memcpy (dst->popcount, src->popcount, sizeof (unsigned char) * dst->size);
|
}
|
}
|
|
|
/* Copy the first N elements of sbitmap SRC to DST. */
|
/* Copy the first N elements of sbitmap SRC to DST. */
|
|
|
void
|
void
|
sbitmap_copy_n (sbitmap dst, const_sbitmap src, unsigned int n)
|
sbitmap_copy_n (sbitmap dst, const_sbitmap src, unsigned int n)
|
{
|
{
|
memcpy (dst->elms, src->elms, sizeof (SBITMAP_ELT_TYPE) * n);
|
memcpy (dst->elms, src->elms, sizeof (SBITMAP_ELT_TYPE) * n);
|
if (dst->popcount)
|
if (dst->popcount)
|
memcpy (dst->popcount, src->popcount, sizeof (unsigned char) * n);
|
memcpy (dst->popcount, src->popcount, sizeof (unsigned char) * n);
|
}
|
}
|
|
|
/* Determine if a == b. */
|
/* Determine if a == b. */
|
int
|
int
|
sbitmap_equal (const_sbitmap a, const_sbitmap b)
|
sbitmap_equal (const_sbitmap a, const_sbitmap b)
|
{
|
{
|
return !memcmp (a->elms, b->elms, sizeof (SBITMAP_ELT_TYPE) * a->size);
|
return !memcmp (a->elms, b->elms, sizeof (SBITMAP_ELT_TYPE) * a->size);
|
}
|
}
|
|
|
/* Return true if the bitmap is empty. */
|
/* Return true if the bitmap is empty. */
|
|
|
bool
|
bool
|
sbitmap_empty_p (const_sbitmap bmap)
|
sbitmap_empty_p (const_sbitmap bmap)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
for (i=0; i<bmap->size; i++)
|
for (i=0; i<bmap->size; i++)
|
if (bmap->elms[i])
|
if (bmap->elms[i])
|
return false;
|
return false;
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Return false if any of the N bits are set in MAP starting at
|
/* Return false if any of the N bits are set in MAP starting at
|
START. */
|
START. */
|
|
|
bool
|
bool
|
sbitmap_range_empty_p (const_sbitmap bmap, unsigned int start, unsigned int n)
|
sbitmap_range_empty_p (const_sbitmap bmap, unsigned int start, unsigned int n)
|
{
|
{
|
unsigned int i = start / SBITMAP_ELT_BITS;
|
unsigned int i = start / SBITMAP_ELT_BITS;
|
SBITMAP_ELT_TYPE elm;
|
SBITMAP_ELT_TYPE elm;
|
unsigned int shift = start % SBITMAP_ELT_BITS;
|
unsigned int shift = start % SBITMAP_ELT_BITS;
|
|
|
gcc_assert (bmap->n_bits >= start + n);
|
gcc_assert (bmap->n_bits >= start + n);
|
|
|
elm = bmap->elms[i];
|
elm = bmap->elms[i];
|
elm = elm >> shift;
|
elm = elm >> shift;
|
|
|
if (shift + n <= SBITMAP_ELT_BITS)
|
if (shift + n <= SBITMAP_ELT_BITS)
|
{
|
{
|
/* The bits are totally contained in a single element. */
|
/* The bits are totally contained in a single element. */
|
if (shift + n < SBITMAP_ELT_BITS)
|
if (shift + n < SBITMAP_ELT_BITS)
|
elm &= ((1 << n) - 1);
|
elm &= ((1 << n) - 1);
|
return (elm == 0);
|
return (elm == 0);
|
}
|
}
|
|
|
if (elm)
|
if (elm)
|
return false;
|
return false;
|
|
|
n -= SBITMAP_ELT_BITS - shift;
|
n -= SBITMAP_ELT_BITS - shift;
|
i++;
|
i++;
|
|
|
/* Deal with full elts. */
|
/* Deal with full elts. */
|
while (n >= SBITMAP_ELT_BITS)
|
while (n >= SBITMAP_ELT_BITS)
|
{
|
{
|
if (bmap->elms[i])
|
if (bmap->elms[i])
|
return false;
|
return false;
|
i++;
|
i++;
|
n -= SBITMAP_ELT_BITS;
|
n -= SBITMAP_ELT_BITS;
|
}
|
}
|
|
|
/* The leftover bits. */
|
/* The leftover bits. */
|
if (n)
|
if (n)
|
{
|
{
|
elm = bmap->elms[i];
|
elm = bmap->elms[i];
|
elm &= ((1 << n) - 1);
|
elm &= ((1 << n) - 1);
|
return (elm == 0);
|
return (elm == 0);
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
|
|
|
|
/* Zero all elements in a bitmap. */
|
/* Zero all elements in a bitmap. */
|
|
|
void
|
void
|
sbitmap_zero (sbitmap bmap)
|
sbitmap_zero (sbitmap bmap)
|
{
|
{
|
memset (bmap->elms, 0, SBITMAP_SIZE_BYTES (bmap));
|
memset (bmap->elms, 0, SBITMAP_SIZE_BYTES (bmap));
|
if (bmap->popcount)
|
if (bmap->popcount)
|
memset (bmap->popcount, 0, bmap->size * sizeof (unsigned char));
|
memset (bmap->popcount, 0, bmap->size * sizeof (unsigned char));
|
}
|
}
|
|
|
/* Set all elements in a bitmap to ones. */
|
/* Set all elements in a bitmap to ones. */
|
|
|
void
|
void
|
sbitmap_ones (sbitmap bmap)
|
sbitmap_ones (sbitmap bmap)
|
{
|
{
|
unsigned int last_bit;
|
unsigned int last_bit;
|
|
|
memset (bmap->elms, -1, SBITMAP_SIZE_BYTES (bmap));
|
memset (bmap->elms, -1, SBITMAP_SIZE_BYTES (bmap));
|
if (bmap->popcount)
|
if (bmap->popcount)
|
memset (bmap->popcount, -1, bmap->size * sizeof (unsigned char));
|
memset (bmap->popcount, -1, bmap->size * sizeof (unsigned char));
|
|
|
last_bit = bmap->n_bits % SBITMAP_ELT_BITS;
|
last_bit = bmap->n_bits % SBITMAP_ELT_BITS;
|
if (last_bit)
|
if (last_bit)
|
{
|
{
|
bmap->elms[bmap->size - 1]
|
bmap->elms[bmap->size - 1]
|
= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
|
= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
|
if (bmap->popcount)
|
if (bmap->popcount)
|
bmap->popcount[bmap->size - 1]
|
bmap->popcount[bmap->size - 1]
|
= do_popcount (bmap->elms[bmap->size - 1]);
|
= do_popcount (bmap->elms[bmap->size - 1]);
|
}
|
}
|
}
|
}
|
|
|
/* Zero a vector of N_VECS bitmaps. */
|
/* Zero a vector of N_VECS bitmaps. */
|
|
|
void
|
void
|
sbitmap_vector_zero (sbitmap *bmap, unsigned int n_vecs)
|
sbitmap_vector_zero (sbitmap *bmap, unsigned int n_vecs)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = 0; i < n_vecs; i++)
|
for (i = 0; i < n_vecs; i++)
|
sbitmap_zero (bmap[i]);
|
sbitmap_zero (bmap[i]);
|
}
|
}
|
|
|
/* Set a vector of N_VECS bitmaps to ones. */
|
/* Set a vector of N_VECS bitmaps to ones. */
|
|
|
void
|
void
|
sbitmap_vector_ones (sbitmap *bmap, unsigned int n_vecs)
|
sbitmap_vector_ones (sbitmap *bmap, unsigned int n_vecs)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = 0; i < n_vecs; i++)
|
for (i = 0; i < n_vecs; i++)
|
sbitmap_ones (bmap[i]);
|
sbitmap_ones (bmap[i]);
|
}
|
}
|
|
|
/* Set DST to be A union (B - C).
|
/* Set DST to be A union (B - C).
|
DST = A | (B & ~C).
|
DST = A | (B & ~C).
|
Returns true if any change is made. */
|
Returns true if any change is made. */
|
|
|
bool
|
bool
|
sbitmap_union_of_diff_cg (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
sbitmap_union_of_diff_cg (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr cp = c->elms;
|
const_sbitmap_ptr cp = c->elms;
|
SBITMAP_ELT_TYPE changed = 0;
|
SBITMAP_ELT_TYPE changed = 0;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
{
|
{
|
const SBITMAP_ELT_TYPE tmp = *ap++ | (*bp++ & ~*cp++);
|
const SBITMAP_ELT_TYPE tmp = *ap++ | (*bp++ & ~*cp++);
|
changed |= *dstp ^ tmp;
|
changed |= *dstp ^ tmp;
|
*dstp++ = tmp;
|
*dstp++ = tmp;
|
}
|
}
|
|
|
return changed != 0;
|
return changed != 0;
|
}
|
}
|
|
|
void
|
void
|
sbitmap_union_of_diff (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
sbitmap_union_of_diff (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr cp = c->elms;
|
const_sbitmap_ptr cp = c->elms;
|
|
|
gcc_assert (!dst->popcount && !a->popcount
|
gcc_assert (!dst->popcount && !a->popcount
|
&& !b->popcount && !c->popcount);
|
&& !b->popcount && !c->popcount);
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
*dstp++ = *ap++ | (*bp++ & ~*cp++);
|
*dstp++ = *ap++ | (*bp++ & ~*cp++);
|
}
|
}
|
|
|
/* Set bitmap DST to the bitwise negation of the bitmap SRC. */
|
/* Set bitmap DST to the bitwise negation of the bitmap SRC. */
|
|
|
void
|
void
|
sbitmap_not (sbitmap dst, const_sbitmap src)
|
sbitmap_not (sbitmap dst, const_sbitmap src)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr srcp = src->elms;
|
const_sbitmap_ptr srcp = src->elms;
|
unsigned int last_bit;
|
unsigned int last_bit;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
*dstp++ = ~*srcp++;
|
*dstp++ = ~*srcp++;
|
|
|
/* Zero all bits past n_bits, by ANDing dst with sbitmap_ones. */
|
/* Zero all bits past n_bits, by ANDing dst with sbitmap_ones. */
|
last_bit = src->n_bits % SBITMAP_ELT_BITS;
|
last_bit = src->n_bits % SBITMAP_ELT_BITS;
|
if (last_bit)
|
if (last_bit)
|
dst->elms[n-1] = dst->elms[n-1]
|
dst->elms[n-1] = dst->elms[n-1]
|
& ((SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit));
|
& ((SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit));
|
}
|
}
|
|
|
/* Set the bits in DST to be the difference between the bits
|
/* Set the bits in DST to be the difference between the bits
|
in A and the bits in B. i.e. dst = a & (~b). */
|
in A and the bits in B. i.e. dst = a & (~b). */
|
|
|
void
|
void
|
sbitmap_difference (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
sbitmap_difference (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
{
|
{
|
unsigned int i, dst_size = dst->size;
|
unsigned int i, dst_size = dst->size;
|
unsigned int min_size = dst->size;
|
unsigned int min_size = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
/* A should be at least as large as DEST, to have a defined source. */
|
/* A should be at least as large as DEST, to have a defined source. */
|
gcc_assert (a->size >= dst_size);
|
gcc_assert (a->size >= dst_size);
|
/* If minuend is smaller, we simply pretend it to be zero bits, i.e.
|
/* If minuend is smaller, we simply pretend it to be zero bits, i.e.
|
only copy the subtrahend into dest. */
|
only copy the subtrahend into dest. */
|
if (b->size < min_size)
|
if (b->size < min_size)
|
min_size = b->size;
|
min_size = b->size;
|
for (i = 0; i < min_size; i++)
|
for (i = 0; i < min_size; i++)
|
*dstp++ = *ap++ & (~*bp++);
|
*dstp++ = *ap++ & (~*bp++);
|
/* Now fill the rest of dest from A, if B was too short.
|
/* Now fill the rest of dest from A, if B was too short.
|
This makes sense only when destination and A differ. */
|
This makes sense only when destination and A differ. */
|
if (dst != a && i != dst_size)
|
if (dst != a && i != dst_size)
|
for (; i < dst_size; i++)
|
for (; i < dst_size; i++)
|
*dstp++ = *ap++;
|
*dstp++ = *ap++;
|
}
|
}
|
|
|
/* Return true if there are any bits set in A are also set in B.
|
/* Return true if there are any bits set in A are also set in B.
|
Return false otherwise. */
|
Return false otherwise. */
|
|
|
bool
|
bool
|
sbitmap_any_common_bits (const_sbitmap a, const_sbitmap b)
|
sbitmap_any_common_bits (const_sbitmap a, const_sbitmap b)
|
{
|
{
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
unsigned int i, n;
|
unsigned int i, n;
|
|
|
n = MIN (a->size, b->size);
|
n = MIN (a->size, b->size);
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
if ((*ap++ & *bp++) != 0)
|
if ((*ap++ & *bp++) != 0)
|
return true;
|
return true;
|
|
|
return false;
|
return false;
|
}
|
}
|
|
|
/* Set DST to be (A and B).
|
/* Set DST to be (A and B).
|
Return nonzero if any change is made. */
|
Return nonzero if any change is made. */
|
|
|
bool
|
bool
|
sbitmap_a_and_b_cg (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
sbitmap_a_and_b_cg (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
SBITMAP_ELT_TYPE changed = 0;
|
SBITMAP_ELT_TYPE changed = 0;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
{
|
{
|
const SBITMAP_ELT_TYPE tmp = *ap++ & *bp++;
|
const SBITMAP_ELT_TYPE tmp = *ap++ & *bp++;
|
changed |= *dstp ^ tmp;
|
changed |= *dstp ^ tmp;
|
*dstp++ = tmp;
|
*dstp++ = tmp;
|
}
|
}
|
|
|
return changed != 0;
|
return changed != 0;
|
}
|
}
|
|
|
void
|
void
|
sbitmap_a_and_b (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
sbitmap_a_and_b (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
bool has_popcount = dst->popcount != NULL;
|
bool has_popcount = dst->popcount != NULL;
|
unsigned char *popcountp = dst->popcount;
|
unsigned char *popcountp = dst->popcount;
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
{
|
{
|
const SBITMAP_ELT_TYPE tmp = *ap++ & *bp++;
|
const SBITMAP_ELT_TYPE tmp = *ap++ & *bp++;
|
if (has_popcount)
|
if (has_popcount)
|
{
|
{
|
bool wordchanged = (*dstp ^ tmp) != 0;
|
bool wordchanged = (*dstp ^ tmp) != 0;
|
if (wordchanged)
|
if (wordchanged)
|
*popcountp = do_popcount (tmp);
|
*popcountp = do_popcount (tmp);
|
popcountp++;
|
popcountp++;
|
}
|
}
|
*dstp++ = tmp;
|
*dstp++ = tmp;
|
}
|
}
|
#ifdef BITMAP_DEBUGGING
|
#ifdef BITMAP_DEBUGGING
|
if (has_popcount)
|
if (has_popcount)
|
sbitmap_verify_popcount (dst);
|
sbitmap_verify_popcount (dst);
|
#endif
|
#endif
|
}
|
}
|
|
|
/* Set DST to be (A xor B)).
|
/* Set DST to be (A xor B)).
|
Return nonzero if any change is made. */
|
Return nonzero if any change is made. */
|
|
|
bool
|
bool
|
sbitmap_a_xor_b_cg (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
sbitmap_a_xor_b_cg (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
SBITMAP_ELT_TYPE changed = 0;
|
SBITMAP_ELT_TYPE changed = 0;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
{
|
{
|
const SBITMAP_ELT_TYPE tmp = *ap++ ^ *bp++;
|
const SBITMAP_ELT_TYPE tmp = *ap++ ^ *bp++;
|
changed |= *dstp ^ tmp;
|
changed |= *dstp ^ tmp;
|
*dstp++ = tmp;
|
*dstp++ = tmp;
|
}
|
}
|
|
|
return changed != 0;
|
return changed != 0;
|
}
|
}
|
|
|
void
|
void
|
sbitmap_a_xor_b (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
sbitmap_a_xor_b (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
bool has_popcount = dst->popcount != NULL;
|
bool has_popcount = dst->popcount != NULL;
|
unsigned char *popcountp = dst->popcount;
|
unsigned char *popcountp = dst->popcount;
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
{
|
{
|
const SBITMAP_ELT_TYPE tmp = *ap++ ^ *bp++;
|
const SBITMAP_ELT_TYPE tmp = *ap++ ^ *bp++;
|
if (has_popcount)
|
if (has_popcount)
|
{
|
{
|
bool wordchanged = (*dstp ^ tmp) != 0;
|
bool wordchanged = (*dstp ^ tmp) != 0;
|
if (wordchanged)
|
if (wordchanged)
|
*popcountp = do_popcount (tmp);
|
*popcountp = do_popcount (tmp);
|
popcountp++;
|
popcountp++;
|
}
|
}
|
*dstp++ = tmp;
|
*dstp++ = tmp;
|
}
|
}
|
#ifdef BITMAP_DEBUGGING
|
#ifdef BITMAP_DEBUGGING
|
if (has_popcount)
|
if (has_popcount)
|
sbitmap_verify_popcount (dst);
|
sbitmap_verify_popcount (dst);
|
#endif
|
#endif
|
}
|
}
|
|
|
/* Set DST to be (A or B)).
|
/* Set DST to be (A or B)).
|
Return nonzero if any change is made. */
|
Return nonzero if any change is made. */
|
|
|
bool
|
bool
|
sbitmap_a_or_b_cg (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
sbitmap_a_or_b_cg (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
SBITMAP_ELT_TYPE changed = 0;
|
SBITMAP_ELT_TYPE changed = 0;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
{
|
{
|
const SBITMAP_ELT_TYPE tmp = *ap++ | *bp++;
|
const SBITMAP_ELT_TYPE tmp = *ap++ | *bp++;
|
changed |= *dstp ^ tmp;
|
changed |= *dstp ^ tmp;
|
*dstp++ = tmp;
|
*dstp++ = tmp;
|
}
|
}
|
|
|
return changed != 0;
|
return changed != 0;
|
}
|
}
|
|
|
void
|
void
|
sbitmap_a_or_b (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
sbitmap_a_or_b (sbitmap dst, const_sbitmap a, const_sbitmap b)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
bool has_popcount = dst->popcount != NULL;
|
bool has_popcount = dst->popcount != NULL;
|
unsigned char *popcountp = dst->popcount;
|
unsigned char *popcountp = dst->popcount;
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
{
|
{
|
const SBITMAP_ELT_TYPE tmp = *ap++ | *bp++;
|
const SBITMAP_ELT_TYPE tmp = *ap++ | *bp++;
|
if (has_popcount)
|
if (has_popcount)
|
{
|
{
|
bool wordchanged = (*dstp ^ tmp) != 0;
|
bool wordchanged = (*dstp ^ tmp) != 0;
|
if (wordchanged)
|
if (wordchanged)
|
*popcountp = do_popcount (tmp);
|
*popcountp = do_popcount (tmp);
|
popcountp++;
|
popcountp++;
|
}
|
}
|
*dstp++ = tmp;
|
*dstp++ = tmp;
|
}
|
}
|
#ifdef BITMAP_DEBUGGING
|
#ifdef BITMAP_DEBUGGING
|
if (has_popcount)
|
if (has_popcount)
|
sbitmap_verify_popcount (dst);
|
sbitmap_verify_popcount (dst);
|
#endif
|
#endif
|
}
|
}
|
|
|
/* Return nonzero if A is a subset of B. */
|
/* Return nonzero if A is a subset of B. */
|
|
|
bool
|
bool
|
sbitmap_a_subset_b_p (const_sbitmap a, const_sbitmap b)
|
sbitmap_a_subset_b_p (const_sbitmap a, const_sbitmap b)
|
{
|
{
|
unsigned int i, n = a->size;
|
unsigned int i, n = a->size;
|
const_sbitmap_ptr ap, bp;
|
const_sbitmap_ptr ap, bp;
|
|
|
for (ap = a->elms, bp = b->elms, i = 0; i < n; i++, ap++, bp++)
|
for (ap = a->elms, bp = b->elms, i = 0; i < n; i++, ap++, bp++)
|
if ((*ap | *bp) != *bp)
|
if ((*ap | *bp) != *bp)
|
return false;
|
return false;
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Set DST to be (A or (B and C)).
|
/* Set DST to be (A or (B and C)).
|
Return nonzero if any change is made. */
|
Return nonzero if any change is made. */
|
|
|
bool
|
bool
|
sbitmap_a_or_b_and_c_cg (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
sbitmap_a_or_b_and_c_cg (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr cp = c->elms;
|
const_sbitmap_ptr cp = c->elms;
|
SBITMAP_ELT_TYPE changed = 0;
|
SBITMAP_ELT_TYPE changed = 0;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
{
|
{
|
const SBITMAP_ELT_TYPE tmp = *ap++ | (*bp++ & *cp++);
|
const SBITMAP_ELT_TYPE tmp = *ap++ | (*bp++ & *cp++);
|
changed |= *dstp ^ tmp;
|
changed |= *dstp ^ tmp;
|
*dstp++ = tmp;
|
*dstp++ = tmp;
|
}
|
}
|
|
|
return changed != 0;
|
return changed != 0;
|
}
|
}
|
|
|
void
|
void
|
sbitmap_a_or_b_and_c (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
sbitmap_a_or_b_and_c (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr cp = c->elms;
|
const_sbitmap_ptr cp = c->elms;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
*dstp++ = *ap++ | (*bp++ & *cp++);
|
*dstp++ = *ap++ | (*bp++ & *cp++);
|
}
|
}
|
|
|
/* Set DST to be (A and (B or C)).
|
/* Set DST to be (A and (B or C)).
|
Return nonzero if any change is made. */
|
Return nonzero if any change is made. */
|
|
|
bool
|
bool
|
sbitmap_a_and_b_or_c_cg (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
sbitmap_a_and_b_or_c_cg (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr cp = c->elms;
|
const_sbitmap_ptr cp = c->elms;
|
SBITMAP_ELT_TYPE changed = 0;
|
SBITMAP_ELT_TYPE changed = 0;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
{
|
{
|
const SBITMAP_ELT_TYPE tmp = *ap++ & (*bp++ | *cp++);
|
const SBITMAP_ELT_TYPE tmp = *ap++ & (*bp++ | *cp++);
|
changed |= *dstp ^ tmp;
|
changed |= *dstp ^ tmp;
|
*dstp++ = tmp;
|
*dstp++ = tmp;
|
}
|
}
|
|
|
return changed != 0;
|
return changed != 0;
|
}
|
}
|
|
|
void
|
void
|
sbitmap_a_and_b_or_c (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
sbitmap_a_and_b_or_c (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
|
{
|
{
|
unsigned int i, n = dst->size;
|
unsigned int i, n = dst->size;
|
sbitmap_ptr dstp = dst->elms;
|
sbitmap_ptr dstp = dst->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr ap = a->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr bp = b->elms;
|
const_sbitmap_ptr cp = c->elms;
|
const_sbitmap_ptr cp = c->elms;
|
|
|
for (i = 0; i < n; i++)
|
for (i = 0; i < n; i++)
|
*dstp++ = *ap++ & (*bp++ | *cp++);
|
*dstp++ = *ap++ & (*bp++ | *cp++);
|
}
|
}
|
|
|
#ifdef IN_GCC
|
#ifdef IN_GCC
|
/* Set the bitmap DST to the intersection of SRC of successors of
|
/* Set the bitmap DST to the intersection of SRC of successors of
|
block number BB, using the new flow graph structures. */
|
block number BB, using the new flow graph structures. */
|
|
|
void
|
void
|
sbitmap_intersection_of_succs (sbitmap dst, sbitmap *src, int bb)
|
sbitmap_intersection_of_succs (sbitmap dst, sbitmap *src, int bb)
|
{
|
{
|
basic_block b = BASIC_BLOCK (bb);
|
basic_block b = BASIC_BLOCK (bb);
|
unsigned int set_size = dst->size;
|
unsigned int set_size = dst->size;
|
edge e;
|
edge e;
|
unsigned ix;
|
unsigned ix;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (e = NULL, ix = 0; ix < EDGE_COUNT (b->succs); ix++)
|
for (e = NULL, ix = 0; ix < EDGE_COUNT (b->succs); ix++)
|
{
|
{
|
e = EDGE_SUCC (b, ix);
|
e = EDGE_SUCC (b, ix);
|
if (e->dest == EXIT_BLOCK_PTR)
|
if (e->dest == EXIT_BLOCK_PTR)
|
continue;
|
continue;
|
|
|
sbitmap_copy (dst, src[e->dest->index]);
|
sbitmap_copy (dst, src[e->dest->index]);
|
break;
|
break;
|
}
|
}
|
|
|
if (e == 0)
|
if (e == 0)
|
sbitmap_ones (dst);
|
sbitmap_ones (dst);
|
else
|
else
|
for (++ix; ix < EDGE_COUNT (b->succs); ix++)
|
for (++ix; ix < EDGE_COUNT (b->succs); ix++)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
sbitmap_ptr p, r;
|
sbitmap_ptr p, r;
|
|
|
e = EDGE_SUCC (b, ix);
|
e = EDGE_SUCC (b, ix);
|
if (e->dest == EXIT_BLOCK_PTR)
|
if (e->dest == EXIT_BLOCK_PTR)
|
continue;
|
continue;
|
|
|
p = src[e->dest->index]->elms;
|
p = src[e->dest->index]->elms;
|
r = dst->elms;
|
r = dst->elms;
|
for (i = 0; i < set_size; i++)
|
for (i = 0; i < set_size; i++)
|
*r++ &= *p++;
|
*r++ &= *p++;
|
}
|
}
|
}
|
}
|
|
|
/* Set the bitmap DST to the intersection of SRC of predecessors of
|
/* Set the bitmap DST to the intersection of SRC of predecessors of
|
block number BB, using the new flow graph structures. */
|
block number BB, using the new flow graph structures. */
|
|
|
void
|
void
|
sbitmap_intersection_of_preds (sbitmap dst, sbitmap *src, int bb)
|
sbitmap_intersection_of_preds (sbitmap dst, sbitmap *src, int bb)
|
{
|
{
|
basic_block b = BASIC_BLOCK (bb);
|
basic_block b = BASIC_BLOCK (bb);
|
unsigned int set_size = dst->size;
|
unsigned int set_size = dst->size;
|
edge e;
|
edge e;
|
unsigned ix;
|
unsigned ix;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (e = NULL, ix = 0; ix < EDGE_COUNT (b->preds); ix++)
|
for (e = NULL, ix = 0; ix < EDGE_COUNT (b->preds); ix++)
|
{
|
{
|
e = EDGE_PRED (b, ix);
|
e = EDGE_PRED (b, ix);
|
if (e->src == ENTRY_BLOCK_PTR)
|
if (e->src == ENTRY_BLOCK_PTR)
|
continue;
|
continue;
|
|
|
sbitmap_copy (dst, src[e->src->index]);
|
sbitmap_copy (dst, src[e->src->index]);
|
break;
|
break;
|
}
|
}
|
|
|
if (e == 0)
|
if (e == 0)
|
sbitmap_ones (dst);
|
sbitmap_ones (dst);
|
else
|
else
|
for (++ix; ix < EDGE_COUNT (b->preds); ix++)
|
for (++ix; ix < EDGE_COUNT (b->preds); ix++)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
sbitmap_ptr p, r;
|
sbitmap_ptr p, r;
|
|
|
e = EDGE_PRED (b, ix);
|
e = EDGE_PRED (b, ix);
|
if (e->src == ENTRY_BLOCK_PTR)
|
if (e->src == ENTRY_BLOCK_PTR)
|
continue;
|
continue;
|
|
|
p = src[e->src->index]->elms;
|
p = src[e->src->index]->elms;
|
r = dst->elms;
|
r = dst->elms;
|
for (i = 0; i < set_size; i++)
|
for (i = 0; i < set_size; i++)
|
*r++ &= *p++;
|
*r++ &= *p++;
|
}
|
}
|
}
|
}
|
|
|
/* Set the bitmap DST to the union of SRC of successors of
|
/* Set the bitmap DST to the union of SRC of successors of
|
block number BB, using the new flow graph structures. */
|
block number BB, using the new flow graph structures. */
|
|
|
void
|
void
|
sbitmap_union_of_succs (sbitmap dst, sbitmap *src, int bb)
|
sbitmap_union_of_succs (sbitmap dst, sbitmap *src, int bb)
|
{
|
{
|
basic_block b = BASIC_BLOCK (bb);
|
basic_block b = BASIC_BLOCK (bb);
|
unsigned int set_size = dst->size;
|
unsigned int set_size = dst->size;
|
edge e;
|
edge e;
|
unsigned ix;
|
unsigned ix;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (ix = 0; ix < EDGE_COUNT (b->succs); ix++)
|
for (ix = 0; ix < EDGE_COUNT (b->succs); ix++)
|
{
|
{
|
e = EDGE_SUCC (b, ix);
|
e = EDGE_SUCC (b, ix);
|
if (e->dest == EXIT_BLOCK_PTR)
|
if (e->dest == EXIT_BLOCK_PTR)
|
continue;
|
continue;
|
|
|
sbitmap_copy (dst, src[e->dest->index]);
|
sbitmap_copy (dst, src[e->dest->index]);
|
break;
|
break;
|
}
|
}
|
|
|
if (ix == EDGE_COUNT (b->succs))
|
if (ix == EDGE_COUNT (b->succs))
|
sbitmap_zero (dst);
|
sbitmap_zero (dst);
|
else
|
else
|
for (ix++; ix < EDGE_COUNT (b->succs); ix++)
|
for (ix++; ix < EDGE_COUNT (b->succs); ix++)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
sbitmap_ptr p, r;
|
sbitmap_ptr p, r;
|
|
|
e = EDGE_SUCC (b, ix);
|
e = EDGE_SUCC (b, ix);
|
if (e->dest == EXIT_BLOCK_PTR)
|
if (e->dest == EXIT_BLOCK_PTR)
|
continue;
|
continue;
|
|
|
p = src[e->dest->index]->elms;
|
p = src[e->dest->index]->elms;
|
r = dst->elms;
|
r = dst->elms;
|
for (i = 0; i < set_size; i++)
|
for (i = 0; i < set_size; i++)
|
*r++ |= *p++;
|
*r++ |= *p++;
|
}
|
}
|
}
|
}
|
|
|
/* Set the bitmap DST to the union of SRC of predecessors of
|
/* Set the bitmap DST to the union of SRC of predecessors of
|
block number BB, using the new flow graph structures. */
|
block number BB, using the new flow graph structures. */
|
|
|
void
|
void
|
sbitmap_union_of_preds (sbitmap dst, sbitmap *src, int bb)
|
sbitmap_union_of_preds (sbitmap dst, sbitmap *src, int bb)
|
{
|
{
|
basic_block b = BASIC_BLOCK (bb);
|
basic_block b = BASIC_BLOCK (bb);
|
unsigned int set_size = dst->size;
|
unsigned int set_size = dst->size;
|
edge e;
|
edge e;
|
unsigned ix;
|
unsigned ix;
|
|
|
gcc_assert (!dst->popcount);
|
gcc_assert (!dst->popcount);
|
|
|
for (ix = 0; ix < EDGE_COUNT (b->preds); ix++)
|
for (ix = 0; ix < EDGE_COUNT (b->preds); ix++)
|
{
|
{
|
e = EDGE_PRED (b, ix);
|
e = EDGE_PRED (b, ix);
|
if (e->src== ENTRY_BLOCK_PTR)
|
if (e->src== ENTRY_BLOCK_PTR)
|
continue;
|
continue;
|
|
|
sbitmap_copy (dst, src[e->src->index]);
|
sbitmap_copy (dst, src[e->src->index]);
|
break;
|
break;
|
}
|
}
|
|
|
if (ix == EDGE_COUNT (b->preds))
|
if (ix == EDGE_COUNT (b->preds))
|
sbitmap_zero (dst);
|
sbitmap_zero (dst);
|
else
|
else
|
for (ix++; ix < EDGE_COUNT (b->preds); ix++)
|
for (ix++; ix < EDGE_COUNT (b->preds); ix++)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
sbitmap_ptr p, r;
|
sbitmap_ptr p, r;
|
|
|
e = EDGE_PRED (b, ix);
|
e = EDGE_PRED (b, ix);
|
if (e->src == ENTRY_BLOCK_PTR)
|
if (e->src == ENTRY_BLOCK_PTR)
|
continue;
|
continue;
|
|
|
p = src[e->src->index]->elms;
|
p = src[e->src->index]->elms;
|
r = dst->elms;
|
r = dst->elms;
|
for (i = 0; i < set_size; i++)
|
for (i = 0; i < set_size; i++)
|
*r++ |= *p++;
|
*r++ |= *p++;
|
}
|
}
|
}
|
}
|
#endif
|
#endif
|
|
|
/* Return number of first bit set in the bitmap, -1 if none. */
|
/* Return number of first bit set in the bitmap, -1 if none. */
|
|
|
int
|
int
|
sbitmap_first_set_bit (const_sbitmap bmap)
|
sbitmap_first_set_bit (const_sbitmap bmap)
|
{
|
{
|
unsigned int n = 0;
|
unsigned int n = 0;
|
sbitmap_iterator sbi;
|
sbitmap_iterator sbi;
|
|
|
EXECUTE_IF_SET_IN_SBITMAP (bmap, 0, n, sbi)
|
EXECUTE_IF_SET_IN_SBITMAP (bmap, 0, n, sbi)
|
return n;
|
return n;
|
return -1;
|
return -1;
|
}
|
}
|
|
|
/* Return number of last bit set in the bitmap, -1 if none. */
|
/* Return number of last bit set in the bitmap, -1 if none. */
|
|
|
int
|
int
|
sbitmap_last_set_bit (const_sbitmap bmap)
|
sbitmap_last_set_bit (const_sbitmap bmap)
|
{
|
{
|
int i;
|
int i;
|
const SBITMAP_ELT_TYPE *const ptr = bmap->elms;
|
const SBITMAP_ELT_TYPE *const ptr = bmap->elms;
|
|
|
for (i = bmap->size - 1; i >= 0; i--)
|
for (i = bmap->size - 1; i >= 0; i--)
|
{
|
{
|
const SBITMAP_ELT_TYPE word = ptr[i];
|
const SBITMAP_ELT_TYPE word = ptr[i];
|
|
|
if (word != 0)
|
if (word != 0)
|
{
|
{
|
unsigned int index = (i + 1) * SBITMAP_ELT_BITS - 1;
|
unsigned int index = (i + 1) * SBITMAP_ELT_BITS - 1;
|
SBITMAP_ELT_TYPE mask
|
SBITMAP_ELT_TYPE mask
|
= (SBITMAP_ELT_TYPE) 1 << (SBITMAP_ELT_BITS - 1);
|
= (SBITMAP_ELT_TYPE) 1 << (SBITMAP_ELT_BITS - 1);
|
|
|
while (1)
|
while (1)
|
{
|
{
|
if ((word & mask) != 0)
|
if ((word & mask) != 0)
|
return index;
|
return index;
|
|
|
mask >>= 1;
|
mask >>= 1;
|
index--;
|
index--;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
return -1;
|
return -1;
|
}
|
}
|
|
|
void
|
void
|
dump_sbitmap (FILE *file, const_sbitmap bmap)
|
dump_sbitmap (FILE *file, const_sbitmap bmap)
|
{
|
{
|
unsigned int i, n, j;
|
unsigned int i, n, j;
|
unsigned int set_size = bmap->size;
|
unsigned int set_size = bmap->size;
|
unsigned int total_bits = bmap->n_bits;
|
unsigned int total_bits = bmap->n_bits;
|
|
|
fprintf (file, " ");
|
fprintf (file, " ");
|
for (i = n = 0; i < set_size && n < total_bits; i++)
|
for (i = n = 0; i < set_size && n < total_bits; i++)
|
for (j = 0; j < SBITMAP_ELT_BITS && n < total_bits; j++, n++)
|
for (j = 0; j < SBITMAP_ELT_BITS && n < total_bits; j++, n++)
|
{
|
{
|
if (n != 0 && n % 10 == 0)
|
if (n != 0 && n % 10 == 0)
|
fprintf (file, " ");
|
fprintf (file, " ");
|
|
|
fprintf (file, "%d",
|
fprintf (file, "%d",
|
(bmap->elms[i] & ((SBITMAP_ELT_TYPE) 1 << j)) != 0);
|
(bmap->elms[i] & ((SBITMAP_ELT_TYPE) 1 << j)) != 0);
|
}
|
}
|
|
|
fprintf (file, "\n");
|
fprintf (file, "\n");
|
}
|
}
|
|
|
void
|
void
|
dump_sbitmap_file (FILE *file, const_sbitmap bmap)
|
dump_sbitmap_file (FILE *file, const_sbitmap bmap)
|
{
|
{
|
unsigned int i, pos;
|
unsigned int i, pos;
|
|
|
fprintf (file, "n_bits = %d, set = {", bmap->n_bits);
|
fprintf (file, "n_bits = %d, set = {", bmap->n_bits);
|
|
|
for (pos = 30, i = 0; i < bmap->n_bits; i++)
|
for (pos = 30, i = 0; i < bmap->n_bits; i++)
|
if (TEST_BIT (bmap, i))
|
if (TEST_BIT (bmap, i))
|
{
|
{
|
if (pos > 70)
|
if (pos > 70)
|
{
|
{
|
fprintf (file, "\n ");
|
fprintf (file, "\n ");
|
pos = 0;
|
pos = 0;
|
}
|
}
|
|
|
fprintf (file, "%d ", i);
|
fprintf (file, "%d ", i);
|
pos += 2 + (i >= 10) + (i >= 100) + (i >= 1000);
|
pos += 2 + (i >= 10) + (i >= 100) + (i >= 1000);
|
}
|
}
|
|
|
fprintf (file, "}\n");
|
fprintf (file, "}\n");
|
}
|
}
|
|
|
void
|
void
|
debug_sbitmap (const_sbitmap bmap)
|
debug_sbitmap (const_sbitmap bmap)
|
{
|
{
|
dump_sbitmap_file (stderr, bmap);
|
dump_sbitmap_file (stderr, bmap);
|
}
|
}
|
|
|
void
|
void
|
dump_sbitmap_vector (FILE *file, const char *title, const char *subtitle,
|
dump_sbitmap_vector (FILE *file, const char *title, const char *subtitle,
|
sbitmap *bmaps, int n_maps)
|
sbitmap *bmaps, int n_maps)
|
{
|
{
|
int bb;
|
int bb;
|
|
|
fprintf (file, "%s\n", title);
|
fprintf (file, "%s\n", title);
|
for (bb = 0; bb < n_maps; bb++)
|
for (bb = 0; bb < n_maps; bb++)
|
{
|
{
|
fprintf (file, "%s %d\n", subtitle, bb);
|
fprintf (file, "%s %d\n", subtitle, bb);
|
dump_sbitmap (file, bmaps[bb]);
|
dump_sbitmap (file, bmaps[bb]);
|
}
|
}
|
|
|
fprintf (file, "\n");
|
fprintf (file, "\n");
|
}
|
}
|
|
|
#if GCC_VERSION < 3400
|
#if GCC_VERSION < 3400
|
/* Table of number of set bits in a character, indexed by value of char. */
|
/* Table of number of set bits in a character, indexed by value of char. */
|
static const unsigned char popcount_table[] =
|
static const unsigned char popcount_table[] =
|
{
|
{
|
0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,
|
0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,
|
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
|
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
|
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
|
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
|
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
|
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
|
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
|
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
|
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
|
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
|
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
|
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
|
3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,4,5,5,6,5,6,6,7,5,6,6,7,6,7,7,8,
|
3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,4,5,5,6,5,6,6,7,5,6,6,7,6,7,7,8,
|
};
|
};
|
|
|
/* Count the bits in an SBITMAP element A. */
|
/* Count the bits in an SBITMAP element A. */
|
|
|
static unsigned long
|
static unsigned long
|
sbitmap_elt_popcount (SBITMAP_ELT_TYPE a)
|
sbitmap_elt_popcount (SBITMAP_ELT_TYPE a)
|
{
|
{
|
unsigned long ret = 0;
|
unsigned long ret = 0;
|
unsigned i;
|
unsigned i;
|
|
|
if (a == 0)
|
if (a == 0)
|
return 0;
|
return 0;
|
|
|
/* Just do this the table way for now */
|
/* Just do this the table way for now */
|
for (i = 0; i < SBITMAP_ELT_BITS; i += 8)
|
for (i = 0; i < SBITMAP_ELT_BITS; i += 8)
|
ret += popcount_table[(a >> i) & 0xff];
|
ret += popcount_table[(a >> i) & 0xff];
|
return ret;
|
return ret;
|
}
|
}
|
#endif
|
#endif
|
|
|
/* Count the number of bits in SBITMAP a, up to bit MAXBIT. */
|
/* Count the number of bits in SBITMAP a, up to bit MAXBIT. */
|
|
|
unsigned long
|
unsigned long
|
sbitmap_popcount (const_sbitmap a, unsigned long maxbit)
|
sbitmap_popcount (const_sbitmap a, unsigned long maxbit)
|
{
|
{
|
unsigned long count = 0;
|
unsigned long count = 0;
|
unsigned ix;
|
unsigned ix;
|
unsigned int lastword;
|
unsigned int lastword;
|
|
|
if (maxbit == 0)
|
if (maxbit == 0)
|
return 0;
|
return 0;
|
|
|
if (maxbit >= a->n_bits)
|
if (maxbit >= a->n_bits)
|
maxbit = a->n_bits;
|
maxbit = a->n_bits;
|
|
|
/* Count the bits in the full word. */
|
/* Count the bits in the full word. */
|
lastword = MIN (a->size, SBITMAP_SET_SIZE (maxbit + 1) - 1);
|
lastword = MIN (a->size, SBITMAP_SET_SIZE (maxbit + 1) - 1);
|
for (ix = 0; ix < lastword; ix++)
|
for (ix = 0; ix < lastword; ix++)
|
{
|
{
|
if (a->popcount)
|
if (a->popcount)
|
{
|
{
|
count += a->popcount[ix];
|
count += a->popcount[ix];
|
#ifdef BITMAP_DEBUGGING
|
#ifdef BITMAP_DEBUGGING
|
gcc_assert (a->popcount[ix] == do_popcount (a->elms[ix]));
|
gcc_assert (a->popcount[ix] == do_popcount (a->elms[ix]));
|
#endif
|
#endif
|
}
|
}
|
else
|
else
|
count += do_popcount (a->elms[ix]);
|
count += do_popcount (a->elms[ix]);
|
}
|
}
|
|
|
/* Count the remaining bits. */
|
/* Count the remaining bits. */
|
if (lastword < a->size)
|
if (lastword < a->size)
|
{
|
{
|
unsigned int bitindex;
|
unsigned int bitindex;
|
SBITMAP_ELT_TYPE theword = a->elms[lastword];
|
SBITMAP_ELT_TYPE theword = a->elms[lastword];
|
|
|
bitindex = maxbit % SBITMAP_ELT_BITS;
|
bitindex = maxbit % SBITMAP_ELT_BITS;
|
if (bitindex != 0)
|
if (bitindex != 0)
|
{
|
{
|
theword &= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - bitindex);
|
theword &= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - bitindex);
|
count += do_popcount (theword);
|
count += do_popcount (theword);
|
}
|
}
|
}
|
}
|
return count;
|
return count;
|
}
|
}
|
|
|
|
|
