From 393f3ad5b9faca002ce01cd61db226174f01f44a Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@gcc.gnu.org>
Date: Mon, 4 Oct 1999 11:39:19 -0700
Subject: [PATCH] * sbitmap.c (sbitmap_ones): Don't set too many bits.

From-SVN: r29807
---
 gcc/sbitmap.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/gcc/sbitmap.c b/gcc/sbitmap.c
index 89d6600927d..8aae23aac64 100644
--- a/gcc/sbitmap.c
+++ b/gcc/sbitmap.c
@@ -115,7 +115,16 @@ void
 sbitmap_ones (bmap)
      sbitmap bmap;
 {
+  unsigned int last_bit;
+
   memset (bmap->elms, -1, bmap->bytes);
+
+  last_bit = bmap->n_bits % (unsigned) SBITMAP_ELT_BITS;
+  if (last_bit)
+    {
+      bmap->elms[bmap->size - 1]
+        = (SBITMAP_ELT_TYPE)-1 >> (SBITMAP_ELT_BITS - last_bit);
+    }
 }
 
 /* Zero a vector of N_VECS bitmaps.  */
@@ -208,7 +217,7 @@ sbitmap_difference (dst, a, b)
     *dstp++ = *ap++ & (~*bp++);
 }
 
-/* Set DST to be (A and B)).
+/* Set DST to be (A and B).
    Return non-zero if any change is made.  */
 
 int
-- 
2.30.2