# 1.27.0[−][src]Function core::arch::x86_64::_mm256_dp_ps

    pub unsafe fn _mm256_dp_ps(a: __m256, b: __m256, imm8: i32) -> __m256

This is supported on x86-64 and target feature `avx` only.

Conditionally multiplies the packed single-precision (32-bit) floating-point elements in `a` and `b` using the high 4 bits in `imm8`, sum the four products, and conditionally return the sum using the low 4 bits of `imm8`.

Intel's documentation