https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105275
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> --- Since this was a costing change I wonder if we identified the code change responsible and thus have a testcase? I realize that for maximum assurance one would need to have a debug counter for switching the patch on/off to have it apply more selectively (possibly per SLP attempt rather than per cost hook invocation which would be even more tricky to do). Feeding another parameter to the hook via a new flag in the vinfo might be possible (and set that from a dbg_cnt call) for example.
