Improve CPU feature check
Damn exit on SSSE3 failure Check AVX for Intel processors
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#pragma once
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#include "types.h"
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#include <string>
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namespace utils
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{
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inline std::array<u32, 4> get_cpuid(u32 func, u32 subfunc)
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{
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int regs[4];
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#ifdef _MSC_VER
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__cpuidex(regs, func, subfunc);
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#else
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__asm__ volatile("cpuid" : "=a" (regs[0]), "=b" (regs[1]), "=c" (regs[2]), "=d" (regs[3]) : "a" (func), "c" (subfunc));
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#endif
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return {0u+regs[0], 0u+regs[1], 0u+regs[2], 0u+regs[3]};
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}
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inline bool has_ssse3()
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{
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return get_cpuid(0, 0)[0] >= 0x1 && get_cpuid(1, 0)[2] & 0x200;
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}
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inline bool has_avx()
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{
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return get_cpuid(0, 0)[0] >= 0x1 && get_cpuid(1, 0)[2] & 0x10000000;
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}
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inline bool has_rtm()
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{
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return get_cpuid(0, 0)[0] >= 0x7 && get_cpuid(7, 0)[1] & 0x800;
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}
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std::string get_system_info();
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}
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