[MSVC] Unroll SIMD to adapt for MSVC.

Signed-off-by: Wang Jikai <[email protected]>

include/common/types.h

@@ -39,6 +39,25 @@ using RemoveCVRefT = std::remove_cv_t<std::remove_reference_t<T>>;
 using Byte = uint8_t;
 
 /// SIMD types definition.
+#if defined(_MSC_VER) && !defined(__clang__) // MSVC
+
+/// Because MSVC does not support [[gnu::vector_size(16)]] or
+/// __attribute__((vector_size(16)), we use this type to fill the gap.
+template <typename Ty, size_t TotalSize = 16,
+          std::enable_if_t<(TotalSize % sizeof(Ty) == 0), int> = 0>
+using SIMDArray = std::array<Ty, (TotalSize / sizeof(Ty))>;
+
+using int64x2_t = SIMDArray<int64_t>;
+using uint64x2_t = SIMDArray<uint64_t>;
+using int32x4_t = SIMDArray<int32_t>;
+using uint32x4_t = SIMDArray<uint32_t>;
+using int16x8_t = SIMDArray<int16_t>;
+using uint16x8_t = SIMDArray<uint16_t>;
+using int8x16_t = SIMDArray<int8_t>;
+using uint8x16_t = SIMDArray<uint8_t>;
+using doublex2_t = SIMDArray<double>;
+using floatx4_t = SIMDArray<float>;
+#else
 using int64x2_t [[gnu::vector_size(16)]] = int64_t;
 using uint64x2_t [[gnu::vector_size(16)]] = uint64_t;
 using int32x4_t [[gnu::vector_size(16)]] = int32_t;
@@ -49,6 +68,7 @@ using int8x16_t [[gnu::vector_size(16)]] = int8_t;
 using uint8x16_t [[gnu::vector_size(16)]] = uint8_t;
 using doublex2_t [[gnu::vector_size(16)]] = double;
 using floatx4_t [[gnu::vector_size(16)]] = float;
+#endif
 
 /// UnknownRef definition.
 struct UnknownRef {