[Bug target/80862] [x86] Wrong rounding results for some test cases

[julia.koval at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80862

--- Comment #2 from Yulia Koval <julia.koval at intel dot com> ---
Patch posted at https://gcc.gnu.org/ml/gcc-patches/2017-05/msg02013.html