pub unsafe fn _mm_fixupimm_round_sd<const IMM8: i32, const SAE: i32>(
    a: __m128d,
    b: __m128d,
    c: __m128i
) -> __m128d
🔬 This is a nightly-only experimental API. (stdsimd)
This is supported on x86-64 and target feature avx512f only.
Expand description

Fix up the lower double-precision (64-bit) floating-point elements in a and b using the lower 64-bit integer in c, store the result in the lower element of dst, and copy the upper element from a to the upper element of dst. imm8 is used to set the required flags reporting.
Exceptions can be suppressed by passing _MM_FROUND_NO_EXC in the sae parameter.

Intel’s documentation