## _mm_getexp_round_sd

# Function _mm_getexp_round_sd

1.89.0 · Source

    pub fn _mm_getexp_round_sd(a: __m128d, b: __m128d, const SAE: i32) -> __m128d

Available on x86 and target feature `avx512f` only.
Expand description

Convert the exponent of the lower double-precision (64-bit) floating-point element in b to a double-precision (64-bit) floating-point number representing the integer exponent, store the result in the lower element of dst, and copy the upper element from a to the upper element of dst. This intrinsic essentially calculates floor(log2(x)) for the lower element.
Exceptions can be suppressed by passing _MM_FROUND_NO_EXC in the sae parameter.

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