x86: BF16 bitwise and sign-manipulation ops for all vector widths

These patches have been committed to the master branch: f3f9e4ee764 – x86: Support bitwise and/andnot/abs/neg/copysign/xorsign op for V8BF/V16BF/V32BF d0c86be1ce7 – i386: Support partial signbit/xorsign/copysign/abs/neg/and/xor/ior/andn for V2BF/V4BF These two patches enable BF16 (Brain Floating-Point 16) bitwise and sign-manipulation operations across all vector widths on x86. The first commit handles full-width vectors (V8BF, V16BF, V32BF) while the… Read more x86: BF16 bitwise and sign-manipulation ops for all vector widths