https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111270
David Binderman <dcb314 at hotmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |redi at gcc dot gnu.org --- Comment #1 from David Binderman <dcb314 at hotmail dot com> --- git blame says: ^d4ba3b369 (Jonathan Wakely 2022-11-01 09:48:41 +0000 3037) if (ix86_tune_features [X86_TUNE_AVOID_256FMA_CHAINS]) eef81eefcd (Jan Hubicka 2022-12-22 10:55:46 +0100 3038) SET_OPTION_IF_UNSET (opts, opts_set, param_avoid_fma_max_bits, 512); Adding Jonathan for their best advice.