2017-12-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/83277
	* graphite-isl-ast-to-gimple.c (should_copy_to_new_region): Make sure
	to code-gen liveout vars.

	* gcc.dg/graphite/pr83277.c: New testcase.

From-SVN: r255424