/*
 * Copyright 2017 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_ir_literal_utils_h
#define wasm_ir_literal_utils_h

#include "wasm.h"

namespace wasm {

namespace LiteralUtils {

inline Literal makeLiteralFromInt32(int32_t x, Type type) {
  switch (type) {
    case i32: return Literal(int32_t(x)); break;
    case i64: return Literal(int64_t(x)); break;
    case f32: return Literal(float(x)); break;
    case f64: return Literal(double(x)); break;
    case v128: assert(false && "v128 not implemented yet");
    case none:
    case unreachable: WASM_UNREACHABLE();
  }
  WASM_UNREACHABLE();
}

inline Literal makeLiteralZero(Type type) {
  return makeLiteralFromInt32(0, type);
}

inline Expression* makeFromInt32(int32_t x, Type type, Module& wasm) {
  auto* ret = wasm.allocator.alloc<Const>();
  ret->value = makeLiteralFromInt32(x, type);
  ret->type = type;
  return ret;
}

inline Expression* makeZero(Type type, Module& wasm) {
  return makeFromInt32(0, type, wasm);
}

} // namespace LiteralUtils

} // namespace wasm

#endif // wasm_ir_literal_utils_h