https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94969
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Bin Cheng <am...@gcc.gnu.org>: https://gcc.gnu.org/g:f6e1a4cd83190746b6544917f7526fa480ca5f18 commit r11-345-gf6e1a4cd83190746b6544917f7526fa480ca5f18 Author: Bin Cheng <bin.ch...@linux.alibaba.com> Date: Wed May 13 11:37:47 2020 +0800 Add missing unit dependence vector in data dependence analysis Current data dependence analysis misses unit distant vector if DRs in DDR have the same invariant access functions. This adds the vector as the constant access function case. 2020-05-13 Bin Cheng <bin.ch...@linux.alibaba.com> PR tree-optimization/94969 gcc/ * tree-data-dependence.c (constant_access_functions): Rename to... (invariant_access_functions): ...this. Add parameter. Check for invariant access function, rather than constant. (build_classic_dist_vector): Call above function. * tree-loop-distribution.c (pg_add_dependence_edges): Add comment. gcc/testsuite/ * gcc.dg/tree-ssa/pr94969.c: New test.