Vector Class Discussion

Errors in vectorf128.h and vectorf256.h

Author:	Date: 2019-06-18 22:34
When I compiled my code by VS2017/VS2019 with /arch:AVX512, it reported that '_mm_cvtepu32_ps', '_mm_rsqrt14_ps', '_mm256_cvtepu32_ps', and '_mm256_rsqrt14_ps' identifier not found. I have lookup them up at https://software.intel.com/sites/landingpage/IntrinsicsGuide/, and those intrinsics don't exist.

Errors in vectorf128.h and vectorf256.h

Author: Agner	Date: 2019-06-19 13:32
These intrinsic functions are defined in "Intel 64 and IA-32 Architectures Software Developerâ€™s Manual". They work in Gcc and Clang compilers, but not in Visual Studio 2019. I have not tried yet with Intel compiler. I have made this work-around for Visual Studio: return _mm512_castps512_ps128(_mm512_cvtepu32_ps(_mm512_castsi128_si512(a)));