Utils: Add support for some more useful arm extensions

Utilities/JITLLVM.cpp

@@ -710,6 +710,16 @@ jit_compiler::jit_compiler(const std::unordered_map<std::string, u64>& _link, co
 		attributes.push_back("+sve2");
 	else
 		attributes.push_back("-sve2");
+
+	if (utils::has_lut())
+        attributes.push_back("+lut");
+    else
+        attributes.push_back("-lut");
+
+    if (utils::has_i8mm())
+        attributes.push_back("+i8mm");
+    else
+        attributes.push_back("-i8mm");
 #endif
 
 	{

rpcs3/util/sysinfo.cpp

@@ -6,6 +6,7 @@
 
 #if defined(ARCH_ARM64)
 #include "Emu/CPU/Backends/AArch64/AArch64Common.h"
+#include <arm_sve.h>
 #endif
 
 #ifdef _WIN32
@@ -545,6 +546,59 @@ bool utils::has_sve2()
 	return g_value;
 }
 
+bool utils::has_lut()
+{
+	static const bool g_value = []() -> bool
+	{
+#if defined(__linux__)
+		return (getauxval(AT_HWCAP2) & HWCAP2_LUT) != 0;
+#elif defined(__APPLE__)
+		int val = 0;
+		size_t len = sizeof(val);
+		sysctlbyname("hw.optional.arm.FEAT_LUT", &val, &len, nullptr, 0);
+		return val != 0;
+#elif defined(_WIN32)
+		return 0;
+#else
+		return 0;
+#endif
+	}();
+	return g_value;
+}
+
+bool utils::has_i8mm()
+{
+	static const bool g_value = []() -> bool
+	{
+#if defined(__linux__)
+		return (getauxval(AT_HWCAP2) & HWCAP2_I8MM) != 0;
+#elif defined(__APPLE__)
+		int val = 0;
+		size_t len = sizeof(val);
+		sysctlbyname("hw.optional.arm.FEAT_I8MM", &val, &len, nullptr, 0);
+		return val != 0;
+#elif defined(_WIN32)
+		return IsProcessorFeaturePresent(PF_ARM_V86_I8MM_INSTRUCTIONS_AVAILABLE) != 0;
+#else
+		return 0;
+#endif
+	}();
+	return g_value;
+}
+
+#if defined(_MSC_VER)
+#define sve_func
+#else
+#define sve_func __attribute__((__target__("+sve")))
+#endif
+
+// svcntb returns sve length in bytes, our function retuns length in bits
+sve_func int utils::sve_length()
+{
+	static const int g_value = static_cast<int>(svcntb() * 8);
+	return g_value;
+}
+
 #endif
 
 std::string utils::get_cpu_brand()

rpcs3/util/sysinfo.hpp

@@ -64,6 +64,12 @@ namespace utils
 	bool has_sve();
 
 	bool has_sve2();
+
+	bool has_lut();
+
+	bool has_i8mm();
+
+	int sve_length();
 #endif
 	std::string get_cpu_brand();