Add SSE4.1, SSE4.2 and AVX2 system stat flags and fix documentation typo

examples/Demo/Source/Demos/SystemInfoDemo.cpp

@@ -120,15 +120,20 @@ static String getAllSystemInfo()
       << "User language:    " << SystemStats::getUserLanguage() << newLine
       << "Display language: " << SystemStats::getDisplayLanguage() << newLine
       << newLine
-      << "Number of CPUs: " << SystemStats::getNumCpus() << newLine
-      << "Memory size:    " << SystemStats::getMemorySizeInMegabytes() << " MB" << newLine
-      << "CPU vendor:     " << SystemStats::getCpuVendor() << newLine
-      << "CPU speed:      " << SystemStats::getCpuSpeedInMegaherz() << " MHz" << newLine
-      << "CPU has MMX:    " << (SystemStats::hasMMX()   ? "yes" : "no") << newLine
-      << "CPU has SSE:    " << (SystemStats::hasSSE()   ? "yes" : "no") << newLine
-      << "CPU has SSE2:   " << (SystemStats::hasSSE2()  ? "yes" : "no") << newLine
-      << "CPU has SSE3:   " << (SystemStats::hasSSE3()  ? "yes" : "no") << newLine
-      << "CPU has 3DNOW:  " << (SystemStats::has3DNow() ? "yes" : "no") << newLine
+      << "Number of CPUs:  " << SystemStats::getNumCpus() << newLine
+      << "Memory size:     " << SystemStats::getMemorySizeInMegabytes() << " MB" << newLine
+      << "CPU vendor:      " << SystemStats::getCpuVendor() << newLine
+      << "CPU speed:       " << SystemStats::getCpuSpeedInMegaherz() << " MHz" << newLine
+      << "CPU has MMX:     " << (SystemStats::hasMMX()    ? "yes" : "no") << newLine
+      << "CPU has SSE:     " << (SystemStats::hasSSE()    ? "yes" : "no") << newLine
+      << "CPU has SSE2:    " << (SystemStats::hasSSE2()   ? "yes" : "no") << newLine
+      << "CPU has SSE3:    " << (SystemStats::hasSSE3()   ? "yes" : "no") << newLine
+      << "CPU has SSSE3:   " << (SystemStats::hasSSSE3()  ? "yes" : "no") << newLine
+      << "CPU has SSE4.1:  " << (SystemStats::hasSSE41()  ? "yes" : "no") << newLine
+      << "CPU has SSE4.2:  " << (SystemStats::hasSSE42()  ? "yes" : "no") << newLine
+      << "CPU has 3DNOW:   " << (SystemStats::has3DNow()  ? "yes" : "no") << newLine
+      << "CPU has AVX:     " << (SystemStats::hasAVX()    ? "yes" : "no") << newLine
+      << "CPU has AVX2:    " << (SystemStats::hasAVX2()   ? "yes" : "no") << newLine
       << newLine
       << "Current working directory:  " << File::getCurrentWorkingDirectory().getFullPathName() << newLine
       << "Current application file:   " << File::getSpecialLocation (File::currentApplicationFile).getFullPathName() << newLine

modules/juce_core/native/juce_linux_SystemStats.cpp

@@ -156,7 +156,10 @@ void CPUInformation::initialise() noexcept
     hasSSE3  = flags.contains ("sse3");
     has3DNow = flags.contains ("3dnow");
     hasSSSE3 = flags.contains ("ssse3");
+    hasSSE41 = flags.contains ("sse4_1");
+    hasSSE42 = flags.contains ("sse4_2");
     hasAVX   = flags.contains ("avx");
+    hasAVX2  = flags.contains ("avx2");
 
     numCpus = LinuxStatsHelpers::getCpuInfo ("processor").getIntValue() + 1;
 }

modules/juce_core/native/juce_mac_SystemStats.mm

@@ -81,7 +81,12 @@ void CPUInformation::initialise() noexcept
     has3DNow = (b & (1u << 31)) != 0;
     hasSSE3  = (c & (1u <<  0)) != 0;
     hasSSSE3 = (c & (1u <<  9)) != 0;
+    hasSSE41 = (c & (1u << 20)) != 0;
+    hasSSE42 = (c & (1u << 19)) != 0;
     hasAVX   = (c & (1u << 28)) != 0;
+
+    SystemStatsHelpers::doCPUID (a, b, c, d, 7);
+    hasAVX2  = (b & (1u <<  5)) != 0;
    #endif
 
     numCpus = (int) [[NSProcessInfo processInfo] activeProcessorCount];

modules/juce_core/native/juce_win32_SystemStats.cpp

@@ -107,8 +107,14 @@ void CPUInformation::initialise() noexcept
     hasSSE3  = (info[2] & (1 <<  0)) != 0;
     hasAVX   = (info[2] & (1 << 28)) != 0;
     hasSSSE3 = (info[2] & (1 <<  9)) != 0;
+    hasSSE41 = (info[2] & (1 << 19)) != 0;
+    hasSSE42 = (info[2] & (1 << 20)) != 0;
     has3DNow = (info[1] & (1 << 31)) != 0;
 
+    callCPUID (info, 7);
+
+    hasAVX2 = (info[1] & (1 << 5)) != 0;
+
     SYSTEM_INFO systemInfo;
     GetNativeSystemInfo (&systemInfo);
     numCpus = (int) systemInfo.dwNumberOfProcessors;

modules/juce_core/system/juce_SystemStats.cpp

@@ -68,7 +68,8 @@ struct CPUInformation
     CPUInformation() noexcept
         : numCpus (0), hasMMX (false), hasSSE (false),
           hasSSE2 (false), hasSSE3 (false), has3DNow (false),
-          hasSSSE3 (false), hasAVX (false)
+          hasSSSE3 (false), hasSSE41 (false), hasSSE42 (false),
+          hasAVX (false), hasAVX2 (false)
     {
         initialise();
     }
@@ -76,7 +77,7 @@ struct CPUInformation
     void initialise() noexcept;
 
     int numCpus;
-    bool hasMMX, hasSSE, hasSSE2, hasSSE3, has3DNow, hasSSSE3, hasAVX;
+    bool hasMMX, hasSSE, hasSSE2, hasSSE3, has3DNow, hasSSSE3, hasSSE41, hasSSE42, hasAVX, hasAVX2;
 };
 
 static const CPUInformation& getCPUInformation() noexcept
@@ -92,7 +93,10 @@ bool SystemStats::hasSSE() noexcept           { return getCPUInformation().hasSS
 bool SystemStats::hasSSE2() noexcept          { return getCPUInformation().hasSSE2; }
 bool SystemStats::hasSSE3() noexcept          { return getCPUInformation().hasSSE3; }
 bool SystemStats::hasSSSE3() noexcept         { return getCPUInformation().hasSSSE3; }
+bool SystemStats::hasSSE41() noexcept         { return getCPUInformation().hasSSE41; }
+bool SystemStats::hasSSE42() noexcept         { return getCPUInformation().hasSSE42; }
 bool SystemStats::hasAVX() noexcept           { return getCPUInformation().hasAVX; }
+bool SystemStats::hasAVX2() noexcept          { return getCPUInformation().hasAVX2; }
 
 
 //==============================================================================

modules/juce_core/system/juce_SystemStats.h

@@ -152,13 +152,16 @@ public:
     */
     static String getCpuVendor();
 
-    static bool hasMMX() noexcept;   /**< Returns true if Intel MMX instructions are available. */
-    static bool has3DNow() noexcept; /**< Returns true if AMD 3DNOW instructions are available. */
-    static bool hasSSE() noexcept;   /**< Returns true if Intel SSE instructions are available. */
-    static bool hasSSE2() noexcept;  /**< Returns true if Intel SSE2 instructions are available. */
-    static bool hasSSE3() noexcept;  /**< Returns true if Intel SSE2 instructions are available. */
-    static bool hasSSSE3() noexcept; /**< Returns true if Intel SSSE3 instructions are available. */
-    static bool hasAVX() noexcept;   /**< Returns true if Intel AVX instructions are available. */
+    static bool hasMMX() noexcept;    /**< Returns true if Intel MMX instructions are available. */
+    static bool has3DNow() noexcept;  /**< Returns true if AMD 3DNOW instructions are available. */
+    static bool hasSSE() noexcept;    /**< Returns true if Intel SSE instructions are available. */
+    static bool hasSSE2() noexcept;   /**< Returns true if Intel SSE2 instructions are available. */
+    static bool hasSSE3() noexcept;   /**< Returns true if Intel SSE3 instructions are available. */
+    static bool hasSSSE3() noexcept;  /**< Returns true if Intel SSSE3 instructions are available. */
+    static bool hasSSE41() noexcept;  /**< Returns true if Intel SSE4.1 instructions are available. */
+    static bool hasSSE42() noexcept;  /**< Returns true if Intel SSE4.2 instructions are available. */
+    static bool hasAVX() noexcept;    /**< Returns true if Intel AVX instructions are available. */
+    static bool hasAVX2() noexcept;   /**< Returns true if Intel AVX2 instructions are available. */
 
     //==============================================================================
     /** Finds out how much RAM is in the machine.