[AArch64] Implement FP8 Neon reinterpret intrinsics

Author: momchil-velikov

clang/include/clang/Basic/arm_neon.td

@@ -1304,7 +1304,7 @@ def VQTBX4_A64 : WInst<"vqtbx4", "..(4Q)U", "UccPcQUcQcQPc">;
 // NeonEmitter implicitly takes the cartesian product of the type string with
 // itself during generation so, unlike all other intrinsics, this one should
 // include *all* types, not just additional ones.
-def VVREINTERPRET : REINTERPRET_CROSS_SELF<"csilUcUsUiUlhfdPcPsPlQcQsQiQlQUcQUsQUiQUlQhQfQdQPcQPsQPlQPk"> {
+def VVREINTERPRET : REINTERPRET_CROSS_SELF<"csilUcUsUiUlmhfdPcPsPlQcQsQiQlQUcQUsQUiQUlQmQhQfQdQPcQPsQPlQPk"> {
   let ArchGuard = "defined(__aarch64__) || defined(__arm64ec__)";
   let BigEndianSafe = 1;
 }

clang/lib/AST/Type.cpp

@@ -2787,7 +2787,8 @@ static bool isTriviallyCopyableTypeImpl(const QualType &type,
     return false;
 
   // As an extension, Clang treats vector types as Scalar types.
-  if (CanonicalType->isScalarType() || CanonicalType->isVectorType())
+  if (CanonicalType->isScalarType() || CanonicalType->isVectorType() ||
+      CanonicalType->isNeonVectorBuiltinType())
     return true;
 
   if (const auto *RT = CanonicalType->getAs<RecordType>()) {