Detect NVIDIA Vera CPUs in absl::base_internal::GetCpuType().

Add `CpuType::kNvidiaVera` (`implementer == 0x4e`, `part_number == 0x010` on aarch64 Linux) and route it to the accelerated ARM CRC32C and CRC memcpy engines alongside `CpuType::kNvidiaGrace`.

PiperOrigin-RevId: 1006572770

absl/base/internal/cpu_detect.cc

diff --git a/absl/base/internal/cpu_detect.cc b/absl/base/internal/cpu_detect.cc
index 43b6c4b..e6858e3 100644
--- a/absl/base/internal/cpu_detect.cc
+++ b/absl/base/internal/cpu_detect.cc
@@ -316,6 +316,14 @@
             return CpuType::kUnknown;
         }
         break;
+      case 0x4e:
+        switch (part_number) {
+          case 0x010:
+            return CpuType::kNvidiaVera;
+          default:
+            return CpuType::kUnknown;
+        }
+        break;
       case 0xc0:
         switch (part_number) {
           case 0xac3:

absl/base/internal/cpu_detect.h

diff --git a/absl/base/internal/cpu_detect.h b/absl/base/internal/cpu_detect.h
index 06eb72a..1ce3eba 100644
--- a/absl/base/internal/cpu_detect.h
+++ b/absl/base/internal/cpu_detect.h
@@ -54,6 +54,7 @@
   kArmNeoverseN3,
   kArmNeoverseN4,
   kNvidiaGrace,
+  kNvidiaVera,
 };
 
 // Returns the type of host CPU this code is running on.  Returns kUnknown if

absl/crc/internal/crc_memcpy_x86_arm_combined.cc

diff --git a/absl/crc/internal/crc_memcpy_x86_arm_combined.cc b/absl/crc/internal/crc_memcpy_x86_arm_combined.cc
index dac0446..f2fdb4b 100644
--- a/absl/crc/internal/crc_memcpy_x86_arm_combined.cc
+++ b/absl/crc/internal/crc_memcpy_x86_arm_combined.cc
@@ -423,6 +423,7 @@
     case CpuType::kArmNeoverseV1:
     case CpuType::kArmNeoverseV2:
     case CpuType::kNvidiaGrace:
+    case CpuType::kNvidiaVera:
       return {
           /*.temporal=*/new AcceleratedCrcMemcpyEngine<3, 0>(),
           /*.non_temporal=*/new CrcNonTemporalMemcpyEngine(),

absl/crc/internal/crc_x86_arm_combined.cc

diff --git a/absl/crc/internal/crc_x86_arm_combined.cc b/absl/crc/internal/crc_x86_arm_combined.cc
index c62fa0c..6a3d373 100644
--- a/absl/crc/internal/crc_x86_arm_combined.cc
+++ b/absl/crc/internal/crc_x86_arm_combined.cc
@@ -1183,6 +1183,7 @@
     case CpuType::kArmNeoverseN3:
     case CpuType::kArmNeoverseN4:
     case CpuType::kNvidiaGrace:
+    case CpuType::kNvidiaVera:
       return new CRC32AcceleratedX86ARMCombinedMultipleStreams<
           1, 1, PclmulStreamType::NEON_PCLMUL_EOR3>();
     case CpuType::kAmpereSiryn: