i2pd/libi2pd/CPU.cpp
r4sas 4a5e16b994
[cpu] tests with preprocessor
Signed-off-by: r4sas <r4sas@i2pmail.org>
2023-09-07 16:56:53 +00:00

68 lines
1.3 KiB
C++

/*
* Copyright (c) 2013-2023, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
* See full license text in LICENSE file at top of project tree
*/
#include "CPU.h"
#include "Log.h"
#ifndef bit_AES
#define bit_AES (1 << 25)
#endif
#if (defined(__GNUC__) && __GNUC__ < 5)
#include <cpuid.h>
#endif
#ifdef _MSC_VER
#include <intrin.h>
#endif
namespace i2p
{
namespace cpu
{
bool aesni = false;
inline bool cpu_support_aes()
{
#if (defined(_M_AMD64) || defined(__x86_64__)) || (defined(_M_IX86) || defined(__i386__))
# if (defined(__GNUC__) && __GNUC__ > 4)
# warning("CPU: IN GCC!!!")
__builtin_cpu_init();
return __builtin_cpu_supports("aes");
# elif (defined(__clang__) && !defined(__GNUC__))
# warning("CPU: IN CLANG!!!")
# warning(__clang__)
# if (__clang_major__ >= 6)
__builtin_cpu_init();
# endif
return __builtin_cpu_supports("aes");
# elif (defined(_MSC_VER) || (defined(__GNUC__) && __GNUC__ < 5))
# warning("CPU: IN MSVC!!!")
int cpu_info[4];
__cpuid(cpu_info, 1);
return ((cpu_info[2] & bit_AES) != 0);
# else
# warning("CPU: FALSE")
return false;
# endif
#else
return false;
#endif
}
void Detect(bool AesSwitch, bool force)
{
if ((cpu_support_aes() && AesSwitch) || (AesSwitch && force)) {
aesni = true;
}
LogPrint(eLogInfo, "AESNI ", (aesni ? "enabled" : "disabled"));
}
}
}