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/*
* 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-builder.h"
#include "wasm.h"
namespace wasm {
namespace LiteralUtils {
inline Expression* makeFromInt32(int32_t x, Type type, Module& wasm) {
auto* ret = wasm.allocator.alloc<Const>();
ret->value = Literal::makeFromInt32(x, type);
ret->type = type;
return ret;
}
inline Expression* makeZero(Type type, Module& wasm) {
// TODO: Switch to using v128.const once V8 supports it
// (https://bugs.chromium.org/p/v8/issues/detail?id=8460)
if (type == v128) {
Builder builder(wasm);
return builder.makeUnary(SplatVecI32x4,
builder.makeConst(Literal(int32_t(0))));
}
if (type.isRef()) {
Builder builder(wasm);
return builder.makeRefNull();
}
return makeFromInt32(0, type, wasm);
}
} // namespace LiteralUtils
} // namespace wasm
#endif // wasm_ir_literal_utils_h
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