# [−][src]Function core::arch::x86::_mm_cmp_sd_mask

    pub unsafe fn _mm_cmp_sd_mask(a: __m128d, b: __m128d, op: i32) -> __mmask8

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on x86 and target feature `avx512f` only.

Compare the lower single-precision (32-bit) floating-point element in a and b based on the comparison operand specified by imm8, and store the result in a mask vector.

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