https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86837
Harald Anlauf <anlauf at gmx dot de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |anlauf at gmx dot de --- Comment #1 from Harald Anlauf <anlauf at gmx dot de> --- If I add "-fno-frontend-optimize", the test case runs properly. There have been other cases where front-end optimization fell over nested loops. You were lucky to find another one that's not yet covered.