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LLVM: Add workaround for znver2

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This commit is contained in:
Nekotekina 2019-11-14 19:09:34 +03:00
parent 8e39c778a1
commit fcc841eaa1
3 changed files with 16 additions and 2 deletions
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6
Utilities/JIT.cpp
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@ -965,6 +965,12 @@ std::string jit_compiler::cpu(const std::string& _cpu)
m_cpu = "skylake";
}
}
if (m_cpu == "znver1" && utils::has_clwb())
{
// Upgrade
m_cpu = "znver2";
}
}
return m_cpu;

6
Utilities/sysinfo.cpp
View File

@ -69,6 +69,12 @@ bool utils::has_xop()
return g_value;
}
bool utils::has_clwb()
{
static const bool g_value = get_cpuid(0, 0)[0] >= 0x7 && (get_cpuid(7, 0)[1] & 0x1000000) == 0x1000000;
return g_value;
}
std::string utils::get_system_info()
{
std::string result;

2
Utilities/sysinfo.h
View File

@ -45,6 +45,8 @@ namespace utils
bool has_xop();
bool has_clwb();
std::string get_system_info();
std::string get_firmware_version();