re PR tree-optimization/69328 (ice in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1379 with -O3)

gcc/

	PR tree-optimization/69328
	* tree-vect-stmts.c (vect_is_simple_cond): Check compared
	vectors have same number of elements.
	(vectorizable_condition): Fix masked version recognition.

gcc/testsuite/

	PR tree-optimization/69328
	* gcc.dg/pr69328.c: New test.

Co-Authored-By: Richard Biener <rguenther@suse.de>

From-SVN: r232608