re PR tree-optimization/77318 (FAIL: gfortran.dg/graphite/pr68279.f90   -O  (internal compiler error))

2017-01-31  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/77318
	* graphite-sese-to-poly.c (extract_affine): Fix assert.
	(create_pw_aff_from_tree): Take loop parameter.
	(add_condition_to_pbb): Pass loop of the condition to
	create_pw_aff_from_tree.

From-SVN: r245064