https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70784
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Also note that finding the heuristics when to use this (for -Os it is of course clearer) is hard, if the pointer is sufficiently aligned or if the target is strict alignment it is of course easier. And the RTL DSE patch caused some SPEC regressions on powerpc*.
