https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90055
Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rsandifo at gcc dot gnu.org --- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> --- Fixed on trunk with r250959 which is: 364bc5b93b76cf88(08 Aug 2017 14:09): [took: 2.844s] result: OK sum: 0.0000 SVN revision: 250959 Author: amker * doc/invoke.texi: Document -ftree-loop-distribution for O3. * opts.c (default_options_table): Add OPT_ftree_loop_distribution. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@250959 138bc75d-0d04-0410-961f-82ee72b054a4 Using: gcc pr90055.c -O3 -ffast-math -march=haswell -mtune=haswell -fno-tree-loop-distribution it disappeared in r253934: Author: hubicka * x86-tune-costs.h (core_cost): Fix div, move and sqrt latencies. and it started with r238033.