https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103744
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Sandiford <rsand...@gcc.gnu.org>: https://gcc.gnu.org/g:e781cb93d7d908f1f4f1611d0034eccbd1478e91 commit r12-6041-ge781cb93d7d908f1f4f1611d0034eccbd1478e91 Author: Richard Sandiford <richard.sandif...@arm.com> Date: Fri Dec 17 14:18:39 2021 +0000 vect: Fix multi-vector SLP gather loads [PR103744] This PR shows that I didn't properly test the multi-vector case when adding support for SLP gather loads. The patch fixes that case using the same approach as we do for non-SLP cases: keep the scalar base the same, but iterate through the (also multi-vector) vector offsets. âvec_num * j + iâ is already used elsewhere as a way of handling both the multi-vector SLP case and the multi-vector non-SLP case. gcc/ PR tree-optimization/103744 * tree-vect-stmts.c (vectorizable_load): Handle multi-vector SLP gather loads. gcc/testsuite/ PR tree-optimization/103744 * gcc.dg/vect/pr103744-1.c: New test. * gcc.dg/vect/pr103744-2.c: Likewise.
