https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105629
--- Comment #2 from rguenther at suse dot de <rguenther at suse dot de> --- On Thu, 19 May 2022, hp at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105629 > > Hans-Peter Nilsson <hp at gcc dot gnu.org> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > CC| |rguenth at gcc dot gnu.org > > --- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> --- > It's r13-204-g93416de0cb7235, "Remove GIMPLE restriction of ! using match.pd > patterns". A brief look at the diff of the assembly between that and that^ > indicates a code quality regression. I wonder if you can help and "bisect" the actual pattern that is now enabled for GENERIC folding? The testcase is about spaceship optimization and the matching done in forwprop might be quite specific and in the need of a slight adjustment.
