src/hotspot/cpu/x86/vm_version_x86.hpp

*** 334,343 ****
--- 334,344 ----
  #define CPU_FMA ((uint64_t)UCONST64(0x800000000))      // FMA instructions
  #define CPU_VZEROUPPER ((uint64_t)UCONST64(0x1000000000))       // Vzeroupper instruction
  #define CPU_AVX512_VPOPCNTDQ ((uint64_t)UCONST64(0x2000000000)) // Vector popcount
  #define CPU_VPCLMULQDQ ((uint64_t)UCONST64(0x4000000000)) //Vector carryless multiplication
  #define CPU_VAES ((uint64_t)UCONST64(0x8000000000))    // Vector AES instructions
+ #define CPU_VNNI ((uint64_t)UCONST64(0x16000000000))   // Vector Neural Network Instructions
  
    enum Extended_Family {
      // AMD
      CPU_FAMILY_AMD_11H       = 0x11,
      // ZX
*** 546,555 ****
--- 547,558 ----
            result |= CPU_AVX512_VPOPCNTDQ;
          if (_cpuid_info.sef_cpuid7_ecx.bits.vpclmulqdq != 0)
            result |= CPU_VPCLMULQDQ;
          if (_cpuid_info.sef_cpuid7_ecx.bits.vaes != 0)
            result |= CPU_VAES;
+         if (_cpuid_info.sef_cpuid7_ecx.bits.avx512_vnni != 0)
+           result |= CPU_VNNI;
        }
      }
      if(_cpuid_info.sef_cpuid7_ebx.bits.bmi1 != 0)
        result |= CPU_BMI1;
      if (_cpuid_info.std_cpuid1_edx.bits.tsc != 0)
*** 826,835 ****
--- 829,839 ----
    static bool supports_fma()        { return (_features & CPU_FMA) != 0 && supports_avx(); }
    static bool supports_vzeroupper() { return (_features & CPU_VZEROUPPER) != 0; }
    static bool supports_vpopcntdq()  { return (_features & CPU_AVX512_VPOPCNTDQ) != 0; }
    static bool supports_vpclmulqdq() { return (_features & CPU_VPCLMULQDQ) != 0; }
    static bool supports_vaes()       { return (_features & CPU_VAES) != 0; }
+   static bool supports_vnni()       { return (_features & CPU_VNNI) != 0; }
  
    // Intel features
    static bool is_intel_family_core() { return is_intel() &&
                                         extended_cpu_family() == CPU_FAMILY_INTEL_CORE; }