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Added support for BMI2 instructions

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This commit is contained in:
SChernykh
2020-01-21 19:44:56 +01:00
parent 8e6f4d4ecb
commit d342968211
8 changed files with 81 additions and 5 deletions
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11
src/backend/cpu/platform/BasicCpuInfo.cpp
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@@ -45,6 +45,10 @@
# define bit_AVX2 (1 << 5)
#endif
#ifndef bit_BMI2
# define bit_BMI2 (1 << 8)
#endif
#ifndef bit_PDPE1GB
# define bit_PDPE1GB (1 << 26)
#endif
@@ -141,6 +145,12 @@ static inline bool has_avx2()
}
static inline bool has_bmi2()
{
return has_feature(EXTENDED_FEATURES, EBX_Reg, bit_BMI2);
}
static inline bool has_pdpe1gb()
{
return has_feature(PROCESSOR_EXT_INFO, EDX_Reg, bit_PDPE1GB);
@@ -154,6 +164,7 @@ xmrig::BasicCpuInfo::BasicCpuInfo() :
m_threads(std::thread::hardware_concurrency()),
m_aes(has_aes_ni()),
m_avx2(has_avx2()),
m_bmi2(has_bmi2()),
m_pdpe1gb(has_pdpe1gb())
{
cpu_brand_string(m_brand);