tree-optimization/120357 - ICE with early break vectorization

tree-optimization/120357 - ICE with early break vectorization

When doing early break vectorization of a loop with a conditional
reduction the epilog creation code is confused as to before which exit
to insert the conditional reduction induction IV update.  The
following make sure this is done before the main IV exit.

	PR tree-optimization/120357
	* tree-vect-loop.cc (vect_create_epilog_for_reduction): Create
	the conditional reduction induction IV increment before the
	main IV exit.

	* gcc.dg/vect/vect-early-break_136-pr120357.c: New testcase.