2011-09-27 Sriraman Tallam <tmsriram@google.com>

[pf3gnuchains/gcc-fork.git] / gcc / bitmap.c

diff --git a/gcc/bitmap.c b/gcc/bitmap.c
index aeaf2ea..8d7f1b2 100644 (file)
--- a/gcc/bitmap.c
+++ b/gcc/bitmap.c
@@ -1,6 +1,6 @@
 /* Functions to support general ended bitmaps.
    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-   2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+   2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -21,9 +21,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "config.h"
 #include "system.h"
 #include "coretypes.h"
-#include "tm.h"
-#include "rtl.h"
-#include "flags.h"
 #include "obstack.h"
 #include "ggc.h"
 #include "bitmap.h"
@@ -624,11 +621,13 @@ bitmap_clear_bit (bitmap head, int bit)
       BITMAP_WORD bit_val = ((BITMAP_WORD) 1) << bit_num;
       bool res = (ptr->bits[word_num] & bit_val) != 0;
       if (res)
-       ptr->bits[word_num] &= ~bit_val;
-
-      /* If we cleared the entire word, free up the element.  */
-      if (bitmap_element_zerop (ptr))
-       bitmap_element_free (head, ptr);
+       {
+         ptr->bits[word_num] &= ~bit_val;
+         /* If we cleared the entire word, free up the element.  */
+         if (!ptr->bits[word_num]
+             && bitmap_element_zerop (ptr))
+           bitmap_element_free (head, ptr);
+       }
 
       return res;
     }