pub unsafe fn _mm256_maskz_fmsubadd_pd(
    k: u8,
    a: __m256d,
    b: __m256d,
    c: __m256d
) -> __m256d
🔬This is a nightly-only experimental API. (stdsimd)
Available on non-crate feature miri-test-libstd and x86-64 only.
Expand description

Multiply packed double-precision (64-bit) floating-point elements in a and b, alternatively add and subtract packed elements in c to/from the intermediate result, and store the results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

Intel’s documentation