Fix NEON 4444 CheckAlpha, workaround for failed bNEON detection on ARM64

Common/ArmCPUDetect.cpp

@@ -101,7 +101,7 @@ bool CheckCPUFeature(const std::string& feature)
 
 	if (!File::OpenCPPFile(file, procfile, std::ios::in))
 		return 0;
-	
+
 	while (std::getline(file, line))
 	{
 		if (line.find(marker) != std::string::npos)
@@ -115,7 +115,7 @@ bool CheckCPUFeature(const std::string& feature)
 			}
 		}
 	}
-	
+
 	return false;
 }
 
@@ -170,7 +170,7 @@ void CPUInfo::Detect()
 	Mode64bit = false;
 #endif
 	vendor = VENDOR_ARM;
-	
+
 	// Get the information about the CPU 
 #if !defined(__linux__)
 	bool isVFP3 = false;
@@ -240,6 +240,11 @@ void CPUInfo::Detect()
 	bASIMD = CheckCPUFeature("asimd");
 	num_cores = GetCoreCount();
 #endif
+#ifdef ARM64
+	// Whether the above detection failed or not, on ARM64 we do have ASIMD/NEON.
+	bNEON = true;
+	bASIMD = true;
+#endif
 }
 
 // Turn the cpu info into a string we can show