https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83887
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Jan 18 10:59:33 2018 New Revision: 256841 URL: https://gcc.gnu.org/viewcvs?rev=256841&root=gcc&view=rev Log: 2018-01-18 Richard Biener <rguent...@suse.de> PR tree-optimization/83887 * graphite-scop-detection.c (scop_detection::get_nearest_dom_with_single_entry): Remove. (scop_detection::get_nearest_pdom_with_single_exit): Likewise. (scop_detection::merge_sese): Re-implement with a flood-fill algorithm that properly finds a SESE region if it exists. * gcc.dg/graphite/pr83887.c: New testcase. * gfortran.dg/graphite/pr83887.f90: Likewise. * gfortran.dg/graphite/pr83887.f: Likewise. Added: trunk/gcc/testsuite/gcc.dg/graphite/pr83887.c trunk/gcc/testsuite/gfortran.dg/graphite/pr83887.f trunk/gcc/testsuite/gfortran.dg/graphite/pr83887.f90 Modified: trunk/gcc/ChangeLog trunk/gcc/graphite-scop-detection.c trunk/gcc/testsuite/ChangeLog