Add CPU detection for AMD Genoa and Ryzen 3000

PiperOrigin-RevId: 561108037 Change-Id: Idff65e288384cb55ce69f789db2d9374ae781d3d

Add CPU detection for AMD Genoa and Ryzen 3000
PiperOrigin-RevId: 561108037 Change-Id: Idff65e288384cb55ce69f789db2d9374ae781d3d
76930e30 · Abseil Team · Copybara-Service · b13016e5 · 76930e30 · 76930e30
Commit 76930e30 authored Aug 29, 2023 by Abseil Team Committed by Copybara-Service Aug 29, 2023
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absl/crc/internal/cpu_detect.cc
+6 -0

absl/crc/internal/cpu_detect.h
+2 -0

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

--- a/absl/crc/internal/cpu_detect.h
+++ b/absl/crc/internal/cpu_detect.h
@@ -29,6 +29,8 @@ enum class CpuType {
  kAmdRome,
  kAmdNaples,
  kAmdMilan,
+  kAmdGenoa,
+  kAmdRyzenV3000,
  kIntelCascadelakeXeon,
  kIntelSkylakeXeon,
  kIntelBroadwell,