https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91403
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:84684e0f78c20c51492722a5b95cda778ad77073 commit r11-6589-g84684e0f78c20c51492722a5b95cda778ad77073 Author: Richard Biener <rguent...@suse.de> Date: Mon Jan 11 12:04:32 2021 +0100 tree-optimization/91403 - avoid excessive code-generation The vectorizer, for large permuted grouped loads, generates inefficient intermediate code (cleaned up only later) that runs into complexity issues in SCEV analysis and elsewhere. For the non-single-element interleaving case we already put a hard limit in place, this applies the same limit to the missing case. 2021-01-11 Richard Biener <rguent...@suse.de> PR tree-optimization/91403 * tree-vect-data-refs.c (vect_analyze_group_access_1): Cap single-element interleaving group size at 4096 elements. * gcc.dg/vect/pr91403.c: New testcase.
