https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110311
--- Comment #33 from anlauf at gcc dot gnu.org --- (In reply to Jakub Jelinek from comment #32) > Then maybe r13-6361-g8020c9c42349f51f75239b > is the commit that changed it? > Would be good to put a breakpoint at that instruction and see in which > iteration it results in NaN and what operands it had... Program received signal SIGFPE, Arithmetic exception. 0x0000000000678f1a in rng_stream.rng_stream_s::mmm_mod (x1=330289839997, x2=4294967087) at rng_stream_sub.f90:336 336 res = mod (x1, x2) (gdb) p x1 $1 = 330289839997 (gdb) p x2 $2 = 4294967087 Strangely enough, a small testcase with these arguments does not fail...
