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9d7cd9b864
PR-URL: https://github.com/nodejs/node/pull/54077 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
70 lines
2.6 KiB
JavaScript
70 lines
2.6 KiB
JavaScript
// 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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// Flags: --turbo-fast-api-calls --expose-fast-api --no-liftoff --wasm-fast-api
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// Flags: --turboshaft-wasm --wasm-lazy-compilation
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// Flags: --no-wasm-native-module-cache-enabled
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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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(function TestI64AsNumber() {
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const fast_c_api = new d8.test.FastCAPI();
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const builder = new WasmModuleBuilder();
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const sig = makeSig(
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[kWasmExternRef, kWasmF64, kWasmF64],
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[kWasmF64],
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);
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const imp_index = builder.addImport('mod', 'foo', sig);
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builder.addFunction('main', sig)
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.addBody([
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kExprLocalGet, 0, // receiver
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kExprLocalGet, 1, // param
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kExprLocalGet, 2, // param
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kExprCallFunction, imp_index
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])
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.exportFunc();
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const wasmModule = builder.toModule();
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const boundImport1 =
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Function.prototype.call.bind(fast_c_api.sum_int64_as_number);
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const instance1 =
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new WebAssembly.Instance(wasmModule, {'mod': {'foo': boundImport1}});
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fast_c_api.reset_counts();
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assertEquals(5, instance1.exports.main(fast_c_api, 2.5, 3.5));
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// With just one instantiation, the well-known imports optimization is valid,
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// and fast API calls should be used.
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assertEquals(1, fast_c_api.fast_call_count());
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const boundImport2 =
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Function.prototype.call.bind(fast_c_api.sum_uint64_as_number);
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const instance2 =
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new WebAssembly.Instance(wasmModule, {'mod': {'foo': boundImport2}});
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fast_c_api.reset_counts();
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assertEquals(5, instance2.exports.main(fast_c_api, 2.5, 3.5));
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// With a second instantiation that imports an API function with a different
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// signature, the well-known imports optimization is not valid anymore, and
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// regular API calls should be used.
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assertEquals(1, fast_c_api.slow_call_count());
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assertEquals(5, instance1.exports.main(fast_c_api, 2.5, 3.5));
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// Make sure that also the code of the first instance got flushed, and also
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// the first instance now uses regular calls.
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assertEquals(2, fast_c_api.slow_call_count());
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assertEquals(0, fast_c_api.fast_call_count());
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const instance3 =
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new WebAssembly.Instance(wasmModule, {'mod': {'foo': boundImport1}});
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fast_c_api.reset_counts();
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assertEquals(5, instance3.exports.main(fast_c_api, 2.5, 3.5));
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// Even when there is another instantiation with the same imports as the first
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// one, we still don't use fast API calls anymore.
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assertEquals(1, fast_c_api.slow_call_count());
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assertEquals(0, fast_c_api.fast_call_count());
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})();
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