gcc/ChangeLog:

2016-07-04  Dominik Vogt  <vogt@linux.vnet.ibm.com>
	    Jeff Law  <law@redhat.com>

	* explow.c (allocate_dynamic_stack_space): Simplify knowing that
	MUST_ALIGN was always true and extra_align ist always BITS_PER_UNIT.


Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r237983