50 lines
1.9 KiB
JavaScript
50 lines
1.9 KiB
JavaScript
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// Copyright 2024 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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let builder = new WasmModuleBuilder();
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builder.addMemory(1, 2, true);
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builder.addFunction('store', kSig_v_v).exportFunc().addBody([
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kExprI32Const, 1, // address
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...wasmI32Const(0x1234), // value
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kAtomicPrefix, kExprI32AtomicStore16U, 1, 0, // size_log_2, offset
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]);
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builder.addFunction('load', kSig_i_v).exportFunc().addBody([
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kExprI32Const, 1, // address
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kAtomicPrefix, kExprI32AtomicLoad16U, 1, 0, // size_log_2, offset
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]);
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builder.addFunction('add', kSig_i_v).exportFunc().addBody([
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kExprI32Const, 1, // address
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kExprI32Const, 0, // value,
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kAtomicPrefix, kExprI32AtomicAdd16U, 1, 0, // size_log_2, offset
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]);
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builder.addFunction('cmpxchg', kSig_i_v).exportFunc().addBody([
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kExprI32Const, 1, // address
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kExprI32Const, 0, // expected value
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kExprI32Const, 0, // new value
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kAtomicPrefix, kExprI32AtomicCompareExchange16U, 1, 0, // size_log_2, offset
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]);
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let instance = builder.instantiate();
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assertThrows(
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() => instance.exports.store(), WebAssembly.RuntimeError,
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'operation does not support unaligned accesses');
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assertThrows(
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() => instance.exports.load(), WebAssembly.RuntimeError,
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'operation does not support unaligned accesses');
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assertThrows(
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() => instance.exports.add(), WebAssembly.RuntimeError,
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'operation does not support unaligned accesses');
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assertThrows(
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() => instance.exports.cmpxchg(), WebAssembly.RuntimeError,
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'operation does not support unaligned accesses');
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