2003-12-28  Mostafa Hagog  <mustafa@il.ibm.com>

	* sbitmap.c (sbitmap_union_of_diff_cg, sbitmap_a_and_b_cg,
	sbitmap_a_xor_b_cg): Accumulate "changed" properly.
	(sbitmap_not): Zero all bits past n_bit.

From-SVN: r75182