Function safe_arch::mul_i16_scale_round_m128i

pub fn mul_i16_scale_round_m128i(a: m128i, b: m128i) -> m128i

Available with target feature ssse3 only.

Multiply i16 lanes into i32 intermediates, keep the high 18 bits, round by adding 1, right shift by 1.

This is _mm_mulhrs_epi16, which I can only assume is named for something like “high bits rounded and scaled”.

• Intrinsic: _mm_mulhrs_epi16
• Assembly: pmulhrsw xmm, xmm