https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82355
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Mon Oct 2 07:32:52 2017 New Revision: 253336 URL: https://gcc.gnu.org/viewcvs?rev=253336&root=gcc&view=rev Log: 2017-10-02 Richard Biener <rguent...@suse.de> PR tree-optimization/82355 * graphite-isl-ast-to-gimple.c (build_iv_mapping): Also build a mapping for the enclosing loop but avoid generating one for the loop tree root. (copy_bb_and_scalar_dependences): Remove premature codegen error on PHIs in blocks duplicated into multiple places. * graphite-scop-detection.c (scop_detection::stmt_has_simple_data_refs_p): For a loop not in the region use it as loop and nest to analyze the DR in. (try_generate_gimple_bb): Likewise. * graphite-sese-to-poly.c (extract_affine_chrec): Adjust. (add_loop_constraints): For blocks in a loop not in the region create a dimension with a single iteration. * sese.h (gbb_loop_at_index): Remove assert. * gcc.dg/graphite/fuse-1.c: Adjust. * gcc.dg/graphite/fuse-2.c: Likewise. * gcc.dg/graphite/pr82355.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/graphite/pr82355.c Modified: trunk/gcc/ChangeLog trunk/gcc/graphite-isl-ast-to-gimple.c trunk/gcc/graphite-scop-detection.c trunk/gcc/graphite-sese-to-poly.c trunk/gcc/sese.h trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/graphite/fuse-1.c trunk/gcc/testsuite/gcc.dg/graphite/fuse-2.c
