[CLR] prevent compilation errors for non-HIP compilers in amd_hip_mx_common.h and amd_hip_ocp_types.h (#2448)

Co-authored-by: Andrei Kochin <andrei.kochin@amd.com>

projects/clr/hipamd/include/hip/amd_detail/amd_hip_mx_common.h

@@ -43,6 +43,8 @@ enum hipRoundMode {
   hipRoundMinInf = 3,
 };
 
+#if defined(__clang__) && defined(__HIP__)
+
 namespace internal {
 __host__ __device__ static inline __amd_fp16_storage_t half_to_f16(const __half val) {
   __half_raw tmp = val;
@@ -71,4 +73,7 @@ __host__ __device__ static inline __amd_bf16x2_storage_t hipbf162_to_bf16x2(cons
   } u{val};
   return u.bf16;
 }
+
 }  // namespace internal
+
+#endif  // defined(__clang__) && defined(__HIP__)

projects/clr/hipamd/include/hip/amd_detail/amd_hip_ocp_types.h

@@ -83,8 +83,9 @@ typedef _Float16 __attribute__((vector_size(16))) __amd_fp16x8_storage_t;
 typedef _Float16 __attribute__((vector_size(64))) __amd_fp16x32_storage_t;
 typedef uint32_t __attribute__((vector_size(24))) __amd_fp6x32_storage_t;
 typedef short __attribute__((vector_size(4))) __amd_shortx2_storage_t;
-#else
-#error "Only supported by HIPCC or GCC >= 13."
 #endif
 
+#if (defined(__clang__) && (__clang_major__ > 17) && defined(__HIP__)) ||                          \
+    (defined(__GNUC__) && (__GNUC__ > 13))
 static_assert(sizeof(__amd_uintx2_storage_t) == sizeof(__amd_fp8x8_storage_t));
+#endif