# Function core::arch::x86_64::_mm256_zextpd128_pd256 1.27.0[−][src]

    pub unsafe fn _mm256_zextpd128_pd256(a: __m128d) -> __m256d

This is supported on x86-64 and target feature `avx,sse2` only.

Constructs a 256-bit floating-point vector of `[4 x double]` from a 128-bit floating-point vector of `[2 x double]`. The lower 128 bits contain the value of the source vector. The upper 128 bits are set to zero.

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