Function _mm_reduce_ph

pub unsafe fn _mm_reduce_ph(a: __m128h, const IMM8: i32) -> __m128h

🔬This is a nightly-only experimental API. (stdarch_x86_avx512_f16 #127213)

Available on (x86 or x86-64) and target feature avx512fp16,avx512vl and x86 only.

Extract the reduced argument of packed half-precision (16-bit) floating-point elements in a by the number of bits specified by imm8, and store the results in dst.

Rounding is done according to the imm8 parameter, which can be one of:

_MM_FROUND_TO_NEAREST_INT // round to nearest
_MM_FROUND_TO_NEG_INF     // round down
_MM_FROUND_TO_POS_INF     // round up
_MM_FROUND_TO_ZERO        // truncate
_MM_FROUND_CUR_DIRECTION  // use MXCSR.RC; see _MM_SET_ROUNDING_MODE

Intel’s documentation