Add CPU detection for AMD Genoa and Ryzen 3000

PiperOrigin-RevId: 561108037
Change-Id: Idff65e288384cb55ce69f789db2d9374ae781d3d

absl/crc/internal/cpu_detect.cc

@@ -189,8 +189,14 @@ CpuType GetAmdCpuType() {
       break;
       break;
     case 0x19:
     case 0x19:
       switch (model_num) {
       switch (model_num) {
+        case 0x0:  // Stepping Ax
         case 0x1:  // Stepping B0
         case 0x1:  // Stepping B0
           return CpuType::kAmdMilan;
           return CpuType::kAmdMilan;
+        case 0x10:  // Stepping A0
+        case 0x11:  // Stepping B0
+          return CpuType::kAmdGenoa;
+        case 0x44:  // Stepping A0
+          return CpuType::kAmdRyzenV3000;
         default:
         default:
           return CpuType::kUnknown;
           return CpuType::kUnknown;
       }
       }

absl/crc/internal/cpu_detect.h

@@ -29,6 +29,8 @@ enum class CpuType {
   kAmdRome,
   kAmdRome,
   kAmdNaples,
   kAmdNaples,
   kAmdMilan,
   kAmdMilan,
+  kAmdGenoa,
+  kAmdRyzenV3000,
   kIntelCascadelakeXeon,
   kIntelCascadelakeXeon,
   kIntelSkylakeXeon,
   kIntelSkylakeXeon,
   kIntelBroadwell,
   kIntelBroadwell,