https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78411
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Yeah, I've also noticed that in my working-directory gcc build (-O0, reconfigured hundreds of times, ...) the test fails, while in my cleanly bootstrapped one it succeeds, with the same -march=/-mtune= options. Apparently tree if-conversion just makes different decisions, until then the dumps are identical. Will do side-by-side debugging on Monday unless somebody beats me to do that.
