https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84114
--- Comment #9 from Steve Ellcey <sje at gcc dot gnu.org> --- > Can you let me know if my workaround helped? If useful I could backport it > to GCC7 as well. Yes, the patch helped. I ran spec 2017 fp rate and saw a small improvement (0.7%). Most of the speed up was in 508.namd_r, 526.blender_r, and 544.nab_r. 507.cactuBSSN_r and 511.povray_r slowed down a little bit.