https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101009
--- Comment #13 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:83758b7b67629ef4492a51e5a255f0070c07574a commit r11-8581-g83758b7b67629ef4492a51e5a255f0070c07574a Author: Richard Biener <rguent...@suse.de> Date: Fri Jun 11 09:33:58 2021 +0200 middle-end/101009 - fix distance vector recording This fixes recording of distance vectors in case the DDR has just constant equal indexes. In that case we expect distance vectors with zero distances to be recorded which is what was done when any distance was computed for affine indexes. 2021-06-11 Richard Biener <rguent...@suse.de> PR middle-end/101009 * tree-data-ref.c (build_classic_dist_vector_1): Make sure to set *init_b to true when we encounter a constant equal index pair. (compute_affine_dependence): Also dump the actual DR_REF. * gcc.dg/torture/pr101009.c: New testcase. (cherry picked from commit 336c41dbcb21740f8964021e157bc69ca547059b)
