[Bug rtl-optimization/78132] [7 Regression] GCC produces invalid instruction (kmovd and kmovq) for KNL.

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78132

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This is actually a bug in the REE pass, HARD_REGNO_MODE_OK is false for the
mask registers and DImode unless -mavx512bw, that pass should honor it.
I'll fix it.