* gcse.c (canon_modify_mem_set_list_set): Kill unnecessary 
	bitmap.
	(alloc_gcse_mem, free_gcse_mem): Corresponding changes.
	(canon_list_insert, record_last_mem_set_info): Similarly.
	(clear_modify_mem_tables): Similarly.

Index: gcse.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/gcse.c,v
retrieving revision 1.330
diff -c -p -r1.330 gcse.c
*** gcse.c	2 Feb 2005 15:59:59 -0000	1.330
--- gcse.c	15 Feb 2005 17:09:07 -0000
*************** static bitmap modify_mem_list_set;
*** 500,506 ****
  
  /* This array parallels modify_mem_list, but is kept canonicalized.  */
  static rtx * canon_modify_mem_list;
- static bitmap canon_modify_mem_list_set;
  
  /* Various variables for statistics gathering.  */
  
--- 500,505 ----
*************** alloc_gcse_mem (rtx f)
*** 968,974 ****
    modify_mem_list = gcalloc (last_basic_block, sizeof (rtx));
    canon_modify_mem_list = gcalloc (last_basic_block, sizeof (rtx));
    modify_mem_list_set = BITMAP_XMALLOC ();
-   canon_modify_mem_list_set = BITMAP_XMALLOC ();
  }
  
  /* Free memory allocated by alloc_gcse_mem.  */
--- 967,972 ----
*************** free_gcse_mem (void)
*** 984,990 ****
    sbitmap_vector_free (reg_set_in_block);
    free_modify_mem_tables ();
    BITMAP_XFREE (modify_mem_list_set);
-   BITMAP_XFREE (canon_modify_mem_list_set);
  }
  
  /* Compute the local properties of each recorded expression.
--- 982,987 ----
*************** canon_list_insert (rtx dest ATTRIBUTE_UN
*** 1951,1957 ****
      alloc_EXPR_LIST (VOIDmode, dest_addr, canon_modify_mem_list[bb]);
    canon_modify_mem_list[bb] =
      alloc_EXPR_LIST (VOIDmode, dest, canon_modify_mem_list[bb]);
-   bitmap_set_bit (canon_modify_mem_list_set, bb);
  }
  
  /* Record memory modification information for INSN.  We do not actually care
--- 1948,1953 ----
*************** record_last_mem_set_info (rtx insn)
*** 1975,1981 ****
  	 need to insert a pair of items, as canon_list_insert does.  */
        canon_modify_mem_list[bb] =
  	alloc_INSN_LIST (insn, canon_modify_mem_list[bb]);
-       bitmap_set_bit (canon_modify_mem_list_set, bb);
      }
    else
      note_stores (PATTERN (insn), canon_list_insert, (void*) insn);
--- 1971,1976 ----
*************** clear_modify_mem_tables (void)
*** 2199,2215 ****
    EXECUTE_IF_SET_IN_BITMAP (modify_mem_list_set, 0, i, bi)
      {
        free_INSN_LIST_list (modify_mem_list + i);
-     }
-   bitmap_clear (modify_mem_list_set);
- 
-   EXECUTE_IF_SET_IN_BITMAP (canon_modify_mem_list_set, 0, i, bi)
-     {
        free_insn_expr_list_list (canon_modify_mem_list + i);
      }
!   bitmap_clear (canon_modify_mem_list_set);
  }
  
! /* Release memory used by modify_mem_list_set and canon_modify_mem_list_set.  */
  
  static void
  free_modify_mem_tables (void)
--- 2194,2205 ----
    EXECUTE_IF_SET_IN_BITMAP (modify_mem_list_set, 0, i, bi)
      {
        free_INSN_LIST_list (modify_mem_list + i);
        free_insn_expr_list_list (canon_modify_mem_list + i);
      }
!   bitmap_clear (modify_mem_list_set);
  }
  
! /* Release memory used by modify_mem_list_set.  */
  
  static void
  free_modify_mem_tables (void)