34 lines
1.2 KiB
JavaScript
34 lines
1.2 KiB
JavaScript
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// Copyright 2023 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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// Flags: --liftoff --no-wasm-tier-up
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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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(function () {
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const builder = new WasmModuleBuilder();
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builder.addImportedMemory("imports", "mem", 1);
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builder.addType(makeSig([kWasmI32, kWasmI64], [kWasmI64]));
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// Generate function 1 (out of 1).
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builder.addFunction(undefined, 0 /* sig */).addBodyWithEnd([
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kExprLocalGet, 0,
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kExprLocalGet, 1,
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kAtomicPrefix, kExprI64AtomicAdd, 0x03, 0x00,
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kExprEnd
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]);
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builder.addExport('atomicAddI64', 0);
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var mem = new WebAssembly.Memory({ initial: 1 });
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let i64arr = new BigUint64Array(mem.buffer);
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new DataView(mem.buffer).setBigUint64(0, 0n, true);
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new DataView(mem.buffer).setBigUint64(8, 0xffffffffn, true);
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const instance = builder.instantiate({ imports: { mem: mem } });
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assertEquals(0n, instance.exports.atomicAddI64(0, 1n));
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assertEquals(1n, instance.exports.atomicAddI64(0, 0n));
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assertEquals(0xffffffffn, instance.exports.atomicAddI64(8, 1n));
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assertEquals(0x100000000n, instance.exports.atomicAddI64(8, 0n));
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})();
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