I need to zero extend packed unsigned 8-bit integers with an AVX intrinsic. Question: How do you generate a "vpmovzxbd xmm, xmm" instruction with intrinsics. There seems to exist something close: __m256i _mm256_cvtepu8_epi32 (__m128i a) which generates "vpmovzxbd ymm, xmm", but this is AVX2. Regards HJ!
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