re PR target/20126 (Inlined memcmp makes one argument null on entry)

2005-07-14  Alexandre Oliva  <aoliva@redhat.com>
            Ulrich Weigand  <uweigand@de.ibm.com>

	PR target/20126
	* loop.c (loop_givs_rescan): Do not ICE if unable to reduce an IV
	in some insn.

Co-Authored-By: Ulrich Weigand <uweigand@de.ibm.com>

From-SVN: r102033