[Bug tree-optimization/117202] SLP permutation for VLA vectors broken

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117202

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think it goes wrong when computing vperm[], specifically active_lane[] but
I'm a bit lost so leaving to Richard S. for now.