src/compiler-support.h

/*
 * Copyright 2015 WebAssembly Community Group participants
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef wasm_compiler_support_h
#define wasm_compiler_support_h

#ifndef __has_feature
#define __has_feature(x) 0
#endif

#ifndef __has_builtin
#define __has_builtin(x) 0
#endif

#if __has_builtin(__builtin_unreachable)
#define WASM_BUILTIN_UNREACHABLE __builtin_unreachable()
#elif defined(_MSC_VER)
#define WASM_BUILTIN_UNREACHABLE __assume(false)
#endif

#if defined(__GNUC__) || defined(__clang__)
#define BYN_WARN_UNUSED [[gnu::warn_unused]]
#else
#define BYN_WARN_UNUSED
#endif

#endif // wasm_compiler_support_h