https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81614
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Last reconfirmed| |2017-07-30 Resolution|DUPLICATE |--- Ever confirmed|0 |1 --- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> --- -mtune-ctrl=partial_reg_stall is turned on only for -mtune=i686. We should exam it for Nehalem and above processors.