Improve CPU feature check

Damn exit on SSSE3 failure
Check AVX for Intel processors

Utilities/JIT.cpp

@@ -12,6 +12,7 @@
 #include "File.h"
 #include "Log.h"
 #include "mutex.h"
+#include "sysinfo.h"
 #include "VirtualMemory.h"
 
 #ifdef _MSC_VER
@@ -377,6 +378,20 @@ jit_compiler::jit_compiler(const std::unordered_map<std::string, std::uintptr_t>
 	if (m_cpu.empty())
 	{
 		m_cpu = llvm::sys::getHostCPUName();
+
+		if (m_cpu == "sandybridge" ||
+			m_cpu == "ivybridge" ||
+			m_cpu == "haswell" ||
+			m_cpu == "broadwell" ||
+			m_cpu == "skylake" ||
+			m_cpu == "skylake-avx512" ||
+			m_cpu == "cannonlake")
+		{
+			if (!utils::has_avx())
+			{
+				m_cpu = "nehalem";
+			}
+		}
 	}
 
 	std::string result;

Utilities/sysinfo.cpp

@@ -0,0 +1,50 @@
+#include "sysinfo.h"
+#include "StrFmt.h"
+
+#ifdef _WIN32
+#include "windows.h"
+#else
+#include <unistd.h>
+#endif
+
+std::string utils::get_system_info()
+{
+	std::string result;
+	std::string brand;
+
+	if (get_cpuid(0x80000000, 0)[0] >= 0x80000004)
+	{
+		for (u32 i = 0; i < 3; i++)
+		{
+			brand.append(reinterpret_cast<const char*>(get_cpuid(0x80000002 + i, 0).data()), 16);
+		}
+	}
+	else
+	{
+		brand = "Unknown CPU";
+	}
+
+	brand.erase(0, brand.find_first_not_of(' '));
+	brand.erase(brand.find_last_not_of(' ') + 1);
+
+	while (auto found = brand.find("  ") + 1)
+	{
+		brand.erase(brand.begin() + found);
+	}
+
+#ifdef _WIN32
+	::SYSTEM_INFO sysInfo;
+	::GetNativeSystemInfo(&sysInfo);
+	::MEMORYSTATUSEX memInfo;
+	memInfo.dwLength = sizeof(memInfo);
+	::GlobalMemoryStatusEx(&memInfo);
+	const u32 num_proc = sysInfo.dwNumberOfProcessors;
+	const u64 mem_total = memInfo.ullTotalPhys;
+#else
+	const u32 num_proc = ::sysconf(_SC_NPROCESSORS_ONLN);
+	const u64 mem_total = ::sysconf(_SC_PHYS_PAGES) * ::sysconf(_SC_PAGE_SIZE);
+#endif
+
+	fmt::append(result, "%s | %d Threads | %.2f GiB RAM", brand, num_proc, mem_total / (1024.0f * 1024 * 1024));
+	return result;
+}

Utilities/sysinfo.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include "types.h"
+#include <string>
+
+namespace utils
+{
+	inline std::array<u32, 4> get_cpuid(u32 func, u32 subfunc)
+	{
+		int regs[4];
+#ifdef _MSC_VER 
+		__cpuidex(regs, func, subfunc);
+#else 
+		__asm__ volatile("cpuid" : "=a" (regs[0]), "=b" (regs[1]), "=c" (regs[2]), "=d" (regs[3]) : "a" (func), "c" (subfunc));
+#endif 
+		return {0u+regs[0], 0u+regs[1], 0u+regs[2], 0u+regs[3]};
+	}
+
+	inline bool has_ssse3()
+	{
+		return get_cpuid(0, 0)[0] >= 0x1 && get_cpuid(1, 0)[2] & 0x200;
+	}
+
+	inline bool has_avx()
+	{
+		return get_cpuid(0, 0)[0] >= 0x1 && get_cpuid(1, 0)[2] & 0x10000000;
+	}
+
+	inline bool has_rtm()
+	{
+		return get_cpuid(0, 0)[0] >= 0x7 && get_cpuid(7, 0)[1] & 0x800;
+	}
+
+	std::string get_system_info();
+}