diff --git a/llvm/include/llvm/CodeGen/ValueTypes.td b/llvm/include/llvm/CodeGen/ValueTypes.td
--- a/llvm/include/llvm/CodeGen/ValueTypes.td
+++ b/llvm/include/llvm/CodeGen/ValueTypes.td
@@ -197,6 +197,7 @@
 def funcref : ValueType<0  , 162>;   // WebAssembly's funcref type
 def externref : ValueType<0  , 163>;   // WebAssembly's externref type
 def x86amx : ValueType<8192, 164>;   // X86 AMX value
+def i64x8 : ValueType<512, 165>;   // 8 Consecutive GPRs (AArch64)
 
 
 def token  : ValueType<0  , 248>;   // TokenTy
diff --git a/llvm/include/llvm/Support/MachineValueType.h b/llvm/include/llvm/Support/MachineValueType.h
--- a/llvm/include/llvm/Support/MachineValueType.h
+++ b/llvm/include/llvm/Support/MachineValueType.h
@@ -248,9 +248,10 @@
       funcref        = 162,   // WebAssembly's funcref type
       externref      = 163,   // WebAssembly's externref type
       x86amx         = 164,   // This is an X86 AMX value
+      i64x8          = 165,   // 8 consecutive GPRs (AArch64)
 
       FIRST_VALUETYPE =  1,   // This is always the beginning of the list.
-      LAST_VALUETYPE = 165,   // This always remains at the end of the list.
+      LAST_VALUETYPE = 166,   // This always remains at the end of the list.
 
       // This is the current maximum for LAST_VALUETYPE.
       // MVT::MAX_ALLOWED_VALUETYPE is used for asserts and to size bit vectors
@@ -924,6 +925,7 @@
       case nxv16f16:
       case nxv8f32:
       case nxv4f64: return TypeSize::Scalable(256);
+      case i64x8:
       case v512i1:
       case v64i8:
       case v32i16:
diff --git a/llvm/lib/CodeGen/ValueTypes.cpp b/llvm/lib/CodeGen/ValueTypes.cpp
--- a/llvm/lib/CodeGen/ValueTypes.cpp
+++ b/llvm/lib/CodeGen/ValueTypes.cpp
@@ -165,6 +165,7 @@
   case MVT::Glue:      return "glue";
   case MVT::x86mmx:    return "x86mmx";
   case MVT::x86amx:    return "x86amx";
+  case MVT::i64x8:     return "i64x8";
   case MVT::Metadata:  return "Metadata";
   case MVT::Untyped:   return "Untyped";
   case MVT::exnref:    return "exnref";
@@ -197,6 +198,7 @@
   case MVT::ppcf128: return Type::getPPC_FP128Ty(Context);
   case MVT::x86mmx:  return Type::getX86_MMXTy(Context);
   case MVT::x86amx:  return Type::getX86_AMXTy(Context);
+  case MVT::i64x8:   return Type::getAArch64_LS64Ty(Context);
   case MVT::v1i1:
     return FixedVectorType::get(Type::getInt1Ty(Context), 1);
   case MVT::v2i1:
@@ -504,6 +506,7 @@
   case Type::X86_FP80TyID:  return MVT(MVT::f80);
   case Type::X86_MMXTyID:   return MVT(MVT::x86mmx);
   case Type::X86_AMXTyID:   return MVT(MVT::x86amx);
+  case Type::AArch64_LS64TyID: return MVT(MVT::i64x8);
   case Type::FP128TyID:     return MVT(MVT::f128);
   case Type::PPC_FP128TyID: return MVT(MVT::ppcf128);
   case Type::PointerTyID:   return MVT(MVT::iPTR);
diff --git a/llvm/utils/TableGen/CodeGenTarget.cpp b/llvm/utils/TableGen/CodeGenTarget.cpp
--- a/llvm/utils/TableGen/CodeGenTarget.cpp
+++ b/llvm/utils/TableGen/CodeGenTarget.cpp
@@ -77,6 +77,7 @@
   case MVT::ppcf128:  return "MVT::ppcf128";
   case MVT::x86mmx:   return "MVT::x86mmx";
   case MVT::x86amx:   return "MVT::x86amx";
+  case MVT::i64x8:    return "MVT::i64x8";
   case MVT::Glue:     return "MVT::Glue";
   case MVT::isVoid:   return "MVT::isVoid";
   case MVT::v1i1:     return "MVT::v1i1";