[Bug rtl-optimization/68664] [6 Regression] Speculative sqrt in c-ray main loop causes large slow down

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68664

ktkachov at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |7.0
            Summary|[6/7 Regression]            |[6 Regression] Speculative
                   |Speculative sqrt in c-ray   |sqrt in c-ray main loop
                   |main loop causes large slow |causes large slow down
                   |down                        |

--- Comment #28 from ktkachov at gcc dot gnu.org ---
Fixed on arm and aarch64 for GCC 7.
I'm not sure if it's appropriate to backport. Should this PR be closed now?