https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106955
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |NEW Keywords| |needs-bisection, | |needs-reduction --- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> --- I've tried and the issue from the description reproduces with r13-1926 but not r13-3214 so it was eventually fixed (but preprocessed source from r13-1926 isn't accepted by r13-3214). Bisection might help, so might reduction. That --param ggc-min-expand=55 is required to trigger the compare-debug is "interesting".