[Bug tree-optimization/94969] [8/9/10/11 Regression] Invalid loop distribution since r8-2390-gdfbddbeb1ca912c9

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94969

--- Comment #8 from bin cheng <amker at gcc dot gnu.org> ---
Root cause is in build_classic_dist_vector -> constant_access_functions which
adds unit distance vector only in case of constant access function.  It should
cover invariant cases.  Testing a patch.  Thanks