Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 763 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/sbitmap.c b/gcc-4.9/gcc/sbitmap.c
new file mode 100644
index 000000000..d6964ad1b
--- /dev/null
+++ b/gcc-4.9/gcc/sbitmap.c
@@ -0,0 +1,763 @@
+/* Simple bitmaps.
+   Copyright (C) 1999-2014 Free Software Foundation, Inc.
+
+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 3, 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 COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "sbitmap.h"
+
+/* This suffices for roughly 99% of the hosts we run on, and the rest
+   don't have 256 bit integers.  */
+#if SBITMAP_ELT_BITS > 255
+#error Need to increase size of datatype used for popcount
+#endif
+
+#if GCC_VERSION >= 3400
+#  if SBITMAP_ELT_BITS == HOST_BITS_PER_LONG
+#    define do_popcount(x) __builtin_popcountl (x)
+#  elif SBITMAP_ELT_BITS == HOST_BITS_PER_LONGLONG
+#    define do_popcount(x) __builtin_popcountll (x)
+#  else
+#    error "internal error: sbitmap.h and hwint.h are inconsistent"
+#  endif
+#else
+static unsigned long sbitmap_elt_popcount (SBITMAP_ELT_TYPE);
+#  define do_popcount(x) sbitmap_elt_popcount (x)
+#endif
+
+typedef SBITMAP_ELT_TYPE *sbitmap_ptr;
+typedef const SBITMAP_ELT_TYPE *const_sbitmap_ptr;
+
+/* Return the size in bytes of a bitmap MAP.  */
+
+static inline unsigned int sbitmap_size_bytes (const_sbitmap map)
+{
+   return map->size * sizeof (SBITMAP_ELT_TYPE);
+}
+
+/* This macro controls debugging that is as expensive as the
+   operations it verifies.  */
+
+/* #define BITMAP_DEBUGGING  */
+#ifdef BITMAP_DEBUGGING
+
+/* Verify the population count of sbitmap A matches the cached value,
+   if there is a cached value. */
+
+static void
+sbitmap_verify_popcount (const_sbitmap a)
+{
+  unsigned ix;
+  unsigned int lastword;
+
+  if (!a->popcount)
+    return;
+
+  lastword = a->size;
+  for (ix = 0; ix < lastword; ix++)
+    gcc_assert (a->popcount[ix] == do_popcount (a->elms[ix]));
+}
+#endif
+
+/* Bitmap manipulation routines.  */
+
+/* Allocate a simple bitmap of N_ELMS bits.  */
+
+sbitmap
+sbitmap_alloc (unsigned int n_elms)
+{
+  unsigned int bytes, size, amt;
+  sbitmap bmap;
+
+  size = SBITMAP_SET_SIZE (n_elms);
+  bytes = size * sizeof (SBITMAP_ELT_TYPE);
+  amt = (sizeof (struct simple_bitmap_def)
+	 + bytes - sizeof (SBITMAP_ELT_TYPE));
+  bmap = (sbitmap) xmalloc (amt);
+  bmap->n_bits = n_elms;
+  bmap->size = size;
+  bmap->popcount = NULL;
+  return bmap;
+}
+
+/* Allocate a simple bitmap of N_ELMS bits, and a popcount array.  */
+
+sbitmap
+sbitmap_alloc_with_popcount (unsigned int n_elms)
+{
+  sbitmap const bmap = sbitmap_alloc (n_elms);
+  bmap->popcount = XNEWVEC (unsigned char, bmap->size);
+  return bmap;
+}
+
+/* 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
+   is zero, and set them to one otherwise.  */
+
+sbitmap
+sbitmap_resize (sbitmap bmap, unsigned int n_elms, int def)
+{
+  unsigned int bytes, size, amt;
+  unsigned int last_bit;
+
+  size = SBITMAP_SET_SIZE (n_elms);
+  bytes = size * sizeof (SBITMAP_ELT_TYPE);
+  if (bytes > sbitmap_size_bytes (bmap))
+    {
+      amt = (sizeof (struct simple_bitmap_def)
+	    + bytes - sizeof (SBITMAP_ELT_TYPE));
+      bmap = (sbitmap) xrealloc (bmap, amt);
+      if (bmap->popcount)
+	bmap->popcount = XRESIZEVEC (unsigned char, bmap->popcount, size);
+    }
+
+  if (n_elms > bmap->n_bits)
+    {
+      if (def)
+	{
+	  memset (bmap->elms + bmap->size, -1,
+		  bytes - sbitmap_size_bytes (bmap));
+
+	  /* Set the new bits if the original last element.  */
+	  last_bit = bmap->n_bits % SBITMAP_ELT_BITS;
+	  if (last_bit)
+	    bmap->elms[bmap->size - 1]
+	      |= ~((SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit));
+
+	  /* Clear the unused bit in the new last element.  */
+	  last_bit = n_elms % SBITMAP_ELT_BITS;
+	  if (last_bit)
+	    bmap->elms[size - 1]
+	      &= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
+	}
+      else
+	{
+	  memset (bmap->elms + bmap->size, 0,
+		  bytes - sbitmap_size_bytes (bmap));
+	  if (bmap->popcount)
+	    memset (bmap->popcount + bmap->size, 0,
+		    (size * sizeof (unsigned char))
+		    - (bmap->size * sizeof (unsigned char)));
+
+	}
+    }
+  else if (n_elms < bmap->n_bits)
+    {
+      /* Clear the surplus bits in the last word.  */
+      last_bit = n_elms % SBITMAP_ELT_BITS;
+      if (last_bit)
+	{
+	  bmap->elms[size - 1]
+	    &= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
+	  if (bmap->popcount)
+	    bmap->popcount[size - 1] = do_popcount (bmap->elms[size - 1]);
+	}
+    }
+
+  bmap->n_bits = n_elms;
+  bmap->size = size;
+  return bmap;
+}
+
+/* Re-allocate a simple bitmap of N_ELMS bits. New storage is uninitialized.  */
+
+sbitmap
+sbitmap_realloc (sbitmap src, unsigned int n_elms)
+{
+  unsigned int bytes, size, amt;
+  sbitmap bmap;
+
+  size = SBITMAP_SET_SIZE (n_elms);
+  bytes = size * sizeof (SBITMAP_ELT_TYPE);
+  amt = (sizeof (struct simple_bitmap_def)
+	 + bytes - sizeof (SBITMAP_ELT_TYPE));
+
+  if (sbitmap_size_bytes (src)  >= bytes)
+    {
+      src->n_bits = n_elms;
+      return src;
+    }
+
+  bmap = (sbitmap) xrealloc (src, amt);
+  bmap->n_bits = n_elms;
+  bmap->size = size;
+  return bmap;
+}
+
+/* Allocate a vector of N_VECS bitmaps of N_ELMS bits.  */
+
+sbitmap *
+sbitmap_vector_alloc (unsigned int n_vecs, unsigned int n_elms)
+{
+  unsigned int i, bytes, offset, elm_bytes, size, amt, vector_bytes;
+  sbitmap *bitmap_vector;
+
+  size = SBITMAP_SET_SIZE (n_elms);
+  bytes = size * sizeof (SBITMAP_ELT_TYPE);
+  elm_bytes = (sizeof (struct simple_bitmap_def)
+	       + bytes - sizeof (SBITMAP_ELT_TYPE));
+  vector_bytes = n_vecs * sizeof (sbitmap *);
+
+  /* Round up `vector_bytes' to account for the alignment requirements
+     of an sbitmap.  One could allocate the vector-table and set of sbitmaps
+     separately, but that requires maintaining two pointers or creating
+     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.  */
+  {
+    /* Based on DEFAULT_ALIGNMENT computation in obstack.c.  */
+    struct { char x; SBITMAP_ELT_TYPE y; } align;
+    int alignment = (char *) & align.y - & align.x;
+    vector_bytes = (vector_bytes + alignment - 1) & ~ (alignment - 1);
+  }
+
+  amt = vector_bytes + (n_vecs * elm_bytes);
+  bitmap_vector = (sbitmap *) xmalloc (amt);
+
+  for (i = 0, offset = vector_bytes; i < n_vecs; i++, offset += elm_bytes)
+    {
+      sbitmap b = (sbitmap) ((char *) bitmap_vector + offset);
+
+      bitmap_vector[i] = b;
+      b->n_bits = n_elms;
+      b->size = size;
+      b->popcount = NULL;
+    }
+
+  return bitmap_vector;
+}
+
+/* Copy sbitmap SRC to DST.  */
+
+void
+bitmap_copy (sbitmap dst, const_sbitmap src)
+{
+  memcpy (dst->elms, src->elms, sizeof (SBITMAP_ELT_TYPE) * dst->size);
+  if (dst->popcount)
+    memcpy (dst->popcount, src->popcount, sizeof (unsigned char) * dst->size);
+}
+
+/* Determine if a == b.  */
+int
+bitmap_equal_p (const_sbitmap a, const_sbitmap b)
+{
+  return !memcmp (a->elms, b->elms, sizeof (SBITMAP_ELT_TYPE) * a->size);
+}
+
+/* Return true if the bitmap is empty.  */
+
+bool
+bitmap_empty_p (const_sbitmap bmap)
+{
+  unsigned int i;
+  for (i=0; i<bmap->size; i++)
+    if (bmap->elms[i])
+      return false;
+
+  return true;
+}
+
+
+/* Zero all elements in a bitmap.  */
+
+void
+bitmap_clear (sbitmap bmap)
+{
+  memset (bmap->elms, 0, sbitmap_size_bytes (bmap));
+  if (bmap->popcount)
+    memset (bmap->popcount, 0, bmap->size * sizeof (unsigned char));
+}
+
+/* Set all elements in a bitmap to ones.  */
+
+void
+bitmap_ones (sbitmap bmap)
+{
+  unsigned int last_bit;
+
+  memset (bmap->elms, -1, sbitmap_size_bytes (bmap));
+  if (bmap->popcount)
+    memset (bmap->popcount, -1, bmap->size * sizeof (unsigned char));
+
+  last_bit = bmap->n_bits % SBITMAP_ELT_BITS;
+  if (last_bit)
+    {
+      bmap->elms[bmap->size - 1]
+	= (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
+      if (bmap->popcount)
+	bmap->popcount[bmap->size - 1]
+	  = do_popcount (bmap->elms[bmap->size - 1]);
+    }
+}
+
+/* Zero a vector of N_VECS bitmaps.  */
+
+void
+bitmap_vector_clear (sbitmap *bmap, unsigned int n_vecs)
+{
+  unsigned int i;
+
+  for (i = 0; i < n_vecs; i++)
+    bitmap_clear (bmap[i]);
+}
+
+/* Set a vector of N_VECS bitmaps to ones.  */
+
+void
+bitmap_vector_ones (sbitmap *bmap, unsigned int n_vecs)
+{
+  unsigned int i;
+
+  for (i = 0; i < n_vecs; i++)
+    bitmap_ones (bmap[i]);
+}
+
+/* Set DST to be A union (B - C).
+   DST = A | (B & ~C).
+   Returns true if any change is made.  */
+
+bool
+bitmap_ior_and_compl (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
+{
+  unsigned int i, n = dst->size;
+  sbitmap_ptr dstp = dst->elms;
+  const_sbitmap_ptr ap = a->elms;
+  const_sbitmap_ptr bp = b->elms;
+  const_sbitmap_ptr cp = c->elms;
+  SBITMAP_ELT_TYPE changed = 0;
+
+  gcc_assert (!dst->popcount);
+
+  for (i = 0; i < n; i++)
+    {
+      const SBITMAP_ELT_TYPE tmp = *ap++ | (*bp++ & ~*cp++);
+      changed |= *dstp ^ tmp;
+      *dstp++ = tmp;
+    }
+
+  return changed != 0;
+}
+
+/* Set bitmap DST to the bitwise negation of the bitmap SRC.  */
+
+void
+bitmap_not (sbitmap dst, const_sbitmap src)
+{
+  unsigned int i, n = dst->size;
+  sbitmap_ptr dstp = dst->elms;
+  const_sbitmap_ptr srcp = src->elms;
+  unsigned int last_bit;
+
+  gcc_assert (!dst->popcount);
+
+  for (i = 0; i < n; i++)
+    *dstp++ = ~*srcp++;
+
+  /* Zero all bits past n_bits, by ANDing dst with bitmap_ones.  */
+  last_bit = src->n_bits % SBITMAP_ELT_BITS;
+  if (last_bit)
+    dst->elms[n-1] = dst->elms[n-1]
+      & ((SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit));
+}
+
+/* Set the bits in DST to be the difference between the bits
+   in A and the bits in B. i.e. dst = a & (~b).  */
+
+void
+bitmap_and_compl (sbitmap dst, const_sbitmap a, const_sbitmap b)
+{
+  unsigned int i, dst_size = dst->size;
+  unsigned int min_size = dst->size;
+  sbitmap_ptr dstp = dst->elms;
+  const_sbitmap_ptr ap = a->elms;
+  const_sbitmap_ptr bp = b->elms;
+
+  gcc_assert (!dst->popcount);
+
+  /* A should be at least as large as DEST, to have a defined source.  */
+  gcc_assert (a->size >= dst_size);
+  /* If minuend is smaller, we simply pretend it to be zero bits, i.e.
+     only copy the subtrahend into dest.  */
+  if (b->size < min_size)
+    min_size = b->size;
+  for (i = 0; i < min_size; i++)
+    *dstp++ = *ap++ & (~*bp++);
+  /* Now fill the rest of dest from A, if B was too short.
+     This makes sense only when destination and A differ.  */
+  if (dst != a && i != dst_size)
+    for (; i < dst_size; i++)
+      *dstp++ = *ap++;
+}
+
+/* Return true if there are any bits set in A are also set in B.
+   Return false otherwise.  */
+
+bool
+bitmap_intersect_p (const_sbitmap a, const_sbitmap b)
+{
+  const_sbitmap_ptr ap = a->elms;
+  const_sbitmap_ptr bp = b->elms;
+  unsigned int i, n;
+
+  n = MIN (a->size, b->size);
+  for (i = 0; i < n; i++)
+    if ((*ap++ & *bp++) != 0)
+      return true;
+
+  return false;
+}
+
+/* Set DST to be (A and B).
+   Return nonzero if any change is made.  */
+
+bool
+bitmap_and (sbitmap dst, const_sbitmap a, const_sbitmap b)
+{
+  unsigned int i, n = dst->size;
+  sbitmap_ptr dstp = dst->elms;
+  const_sbitmap_ptr ap = a->elms;
+  const_sbitmap_ptr bp = b->elms;
+  bool has_popcount = dst->popcount != NULL;
+  unsigned char *popcountp = dst->popcount;
+  SBITMAP_ELT_TYPE changed = 0;
+
+  for (i = 0; i < n; i++)
+    {
+      const SBITMAP_ELT_TYPE tmp = *ap++ & *bp++;
+      SBITMAP_ELT_TYPE wordchanged = *dstp ^ tmp;
+      if (has_popcount)
+	{
+	  if (wordchanged)
+	    *popcountp = do_popcount (tmp);
+	  popcountp++;
+	}
+      *dstp++ = tmp;
+      changed |= wordchanged;
+    }
+#ifdef BITMAP_DEBUGGING
+  if (has_popcount)
+    sbitmap_verify_popcount (dst);
+#endif
+  return changed != 0;
+}
+
+/* Set DST to be (A xor B)).
+   Return nonzero if any change is made.  */
+
+bool
+bitmap_xor (sbitmap dst, const_sbitmap a, const_sbitmap b)
+{
+  unsigned int i, n = dst->size;
+  sbitmap_ptr dstp = dst->elms;
+  const_sbitmap_ptr ap = a->elms;
+  const_sbitmap_ptr bp = b->elms;
+  bool has_popcount = dst->popcount != NULL;
+  unsigned char *popcountp = dst->popcount;
+  SBITMAP_ELT_TYPE changed = 0;
+
+  for (i = 0; i < n; i++)
+    {
+      const SBITMAP_ELT_TYPE tmp = *ap++ ^ *bp++;
+      SBITMAP_ELT_TYPE wordchanged = *dstp ^ tmp;
+      if (has_popcount)
+	{
+	  if (wordchanged)
+	    *popcountp = do_popcount (tmp);
+	  popcountp++;
+	}
+      *dstp++ = tmp;
+      changed |= wordchanged;
+    }
+#ifdef BITMAP_DEBUGGING
+  if (has_popcount)
+    sbitmap_verify_popcount (dst);
+#endif
+  return changed != 0;
+}
+
+/* Set DST to be (A or B)).
+   Return nonzero if any change is made.  */
+
+bool
+bitmap_ior (sbitmap dst, const_sbitmap a, const_sbitmap b)
+{
+  unsigned int i, n = dst->size;
+  sbitmap_ptr dstp = dst->elms;
+  const_sbitmap_ptr ap = a->elms;
+  const_sbitmap_ptr bp = b->elms;
+  bool has_popcount = dst->popcount != NULL;
+  unsigned char *popcountp = dst->popcount;
+  SBITMAP_ELT_TYPE changed = 0;
+
+  for (i = 0; i < n; i++)
+    {
+      const SBITMAP_ELT_TYPE tmp = *ap++ | *bp++;
+      SBITMAP_ELT_TYPE wordchanged = *dstp ^ tmp;
+      if (has_popcount)
+	{
+	  if (wordchanged)
+	    *popcountp = do_popcount (tmp);
+	  popcountp++;
+	}
+      *dstp++ = tmp;
+      changed |= wordchanged;
+    }
+#ifdef BITMAP_DEBUGGING
+  if (has_popcount)
+    sbitmap_verify_popcount (dst);
+#endif
+  return changed != 0;
+}
+
+/* Return nonzero if A is a subset of B.  */
+
+bool
+bitmap_subset_p (const_sbitmap a, const_sbitmap b)
+{
+  unsigned int i, n = a->size;
+  const_sbitmap_ptr ap, bp;
+
+  for (ap = a->elms, bp = b->elms, i = 0; i < n; i++, ap++, bp++)
+    if ((*ap | *bp) != *bp)
+      return false;
+
+  return true;
+}
+
+/* Set DST to be (A or (B and C)).
+   Return nonzero if any change is made.  */
+
+bool
+bitmap_or_and (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
+{
+  unsigned int i, n = dst->size;
+  sbitmap_ptr dstp = dst->elms;
+  const_sbitmap_ptr ap = a->elms;
+  const_sbitmap_ptr bp = b->elms;
+  const_sbitmap_ptr cp = c->elms;
+  SBITMAP_ELT_TYPE changed = 0;
+
+  gcc_assert (!dst->popcount);
+
+  for (i = 0; i < n; i++)
+    {
+      const SBITMAP_ELT_TYPE tmp = *ap++ | (*bp++ & *cp++);
+      changed |= *dstp ^ tmp;
+      *dstp++ = tmp;
+    }
+
+  return changed != 0;
+}
+
+/* Set DST to be (A and (B or C)).
+   Return nonzero if any change is made.  */
+
+bool
+bitmap_and_or (sbitmap dst, const_sbitmap a, const_sbitmap b, const_sbitmap c)
+{
+  unsigned int i, n = dst->size;
+  sbitmap_ptr dstp = dst->elms;
+  const_sbitmap_ptr ap = a->elms;
+  const_sbitmap_ptr bp = b->elms;
+  const_sbitmap_ptr cp = c->elms;
+  SBITMAP_ELT_TYPE changed = 0;
+
+  gcc_assert (!dst->popcount);
+
+  for (i = 0; i < n; i++)
+    {
+      const SBITMAP_ELT_TYPE tmp = *ap++ & (*bp++ | *cp++);
+      changed |= *dstp ^ tmp;
+      *dstp++ = tmp;
+    }
+
+  return changed != 0;
+}
+
+/* Return number of first bit set in the bitmap, -1 if none.  */
+
+int
+bitmap_first_set_bit (const_sbitmap bmap)
+{
+  unsigned int n = 0;
+  sbitmap_iterator sbi;
+
+  EXECUTE_IF_SET_IN_BITMAP (bmap, 0, n, sbi)
+    return n;
+  return -1;
+}
+
+/* Return number of last bit set in the bitmap, -1 if none.  */
+
+int
+bitmap_last_set_bit (const_sbitmap bmap)
+{
+  int i;
+  const SBITMAP_ELT_TYPE *const ptr = bmap->elms;
+
+  for (i = bmap->size - 1; i >= 0; i--)
+    {
+      const SBITMAP_ELT_TYPE word = ptr[i];
+
+      if (word != 0)
+	{
+	  unsigned int index = (i + 1) * SBITMAP_ELT_BITS - 1;
+	  SBITMAP_ELT_TYPE mask
+	    = (SBITMAP_ELT_TYPE) 1 << (SBITMAP_ELT_BITS - 1);
+
+	  while (1)
+	    {
+	      if ((word & mask) != 0)
+		return index;
+
+	      mask >>= 1;
+	      index--;
+	    }
+	}
+    }
+
+  return -1;
+}
+
+void
+dump_bitmap (FILE *file, const_sbitmap bmap)
+{
+  unsigned int i, n, j;
+  unsigned int set_size = bmap->size;
+  unsigned int total_bits = bmap->n_bits;
+
+  fprintf (file, "  ");
+  for (i = n = 0; i < set_size && n < total_bits; i++)
+    for (j = 0; j < SBITMAP_ELT_BITS && n < total_bits; j++, n++)
+      {
+	if (n != 0 && n % 10 == 0)
+	  fprintf (file, " ");
+
+	fprintf (file, "%d",
+		 (bmap->elms[i] & ((SBITMAP_ELT_TYPE) 1 << j)) != 0);
+      }
+
+  fprintf (file, "\n");
+}
+
+DEBUG_FUNCTION void
+debug_raw (simple_bitmap_def &ref)
+{
+  dump_bitmap (stderr, &ref);
+}
+
+DEBUG_FUNCTION void
+debug_raw (simple_bitmap_def *ptr)
+{
+  if (ptr)
+    debug_raw (*ptr);
+  else
+    fprintf (stderr, "<nil>\n");
+}
+
+void
+dump_bitmap_file (FILE *file, const_sbitmap bmap)
+{
+  unsigned int i, pos;
+
+  fprintf (file, "n_bits = %d, set = {", bmap->n_bits);
+
+  for (pos = 30, i = 0; i < bmap->n_bits; i++)
+    if (bitmap_bit_p (bmap, i))
+      {
+	if (pos > 70)
+	  {
+	    fprintf (file, "\n  ");
+	    pos = 0;
+	  }
+
+	fprintf (file, "%d ", i);
+	pos += 2 + (i >= 10) + (i >= 100) + (i >= 1000);
+      }
+
+  fprintf (file, "}\n");
+}
+
+DEBUG_FUNCTION void
+debug_bitmap (const_sbitmap bmap)
+{
+  dump_bitmap_file (stderr, bmap);
+}
+
+DEBUG_FUNCTION void
+debug (simple_bitmap_def &ref)
+{
+  dump_bitmap_file (stderr, &ref);
+}
+
+DEBUG_FUNCTION void
+debug (simple_bitmap_def *ptr)
+{
+  if (ptr)
+    debug (*ptr);
+  else
+    fprintf (stderr, "<nil>\n");
+}
+
+void
+dump_bitmap_vector (FILE *file, const char *title, const char *subtitle,
+		     sbitmap *bmaps, int n_maps)
+{
+  int i;
+
+  fprintf (file, "%s\n", title);
+  for (i = 0; i < n_maps; i++)
+    {
+      fprintf (file, "%s %d\n", subtitle, i);
+      dump_bitmap (file, bmaps[i]);
+    }
+
+  fprintf (file, "\n");
+}
+
+#if GCC_VERSION < 3400
+/* Table of number of set bits in a character, indexed by value of char.  */
+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,
+    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,
+    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,
+    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.  */
+
+static unsigned long
+sbitmap_elt_popcount (SBITMAP_ELT_TYPE a)
+{
+  unsigned long ret = 0;
+  unsigned i;
+
+  if (a == 0)
+    return 0;
+
+  /* Just do this the table way for now  */
+  for (i = 0; i < SBITMAP_ELT_BITS; i += 8)
+    ret += popcount_table[(a >> i) & 0xff];
+  return ret;
+}
+#endif