https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81351
--- Comment #1 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > I'll start a reghunt to identify the culprit, but the most likely candidates > are [...] > changeset: 39311:a2df04e7a94b > user: hubicka@138bc75d-0d04-0410-961f-82ee72b054a4 > date: Thu Jul 06 16:47:20 2017 +0000 > files: gcc/ChangeLog gcc/lto-wrapper.c > description: > * lto-wrapper.c (merge_and_complain): Do not merge > fexceptions, fnon_call_exceptions, ftrapv, ffp_contract_, fmath_errno, > fsigned_zeros, ftrapping_math, fwrapv. > (append_compiler_options): Do not track these options. > (append_linker_options): Likewie Got it: just reverting svn r250035 was enough to make one of the testcases PASS again. Rainer