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Marko Mäkelä authored
According to https://discussions.apple.com/thread/8256853 an attempt to use AVX512 registers on macOS will result in #UD (crash at runtime). Also, starting with clang-18 and GCC 14, we must add "evex512" to the target flags so that AVX and SSE instructions can use AVX512 specific encodings. This flag was introduced together with the avx10.1-512 target. Older compiler versions do not recognize "evex512". We do not want to write "avx10.1-512" because it could enable some AVX512 subfeatures that we do not have any CPUID check for. Reviewed by: Vladislav Vaintroub Tested on macOS by: Valerii Kravchuk
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