tree-vect-patterns.c (vect_recog_widen_mult_pattern): Add NULL check for vectype_out returned by get_vectype_for_scalar_type().

gcc/

2010-10-07  Tejas Belagod  <tejas.belagod@arm.com>

	* tree-vect-patterns.c (vect_recog_widen_mult_pattern): Add NULL
	check for vectype_out returned by get_vectype_for_scalar_type().

testsuite/

2010-10-07  Tejas Belagod  <tejas.belagod@arm.com>

	* gcc.dg/vect/pr45847.c: New test.

From-SVN: r165123