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50930a0fa0
PR-URL: https://github.com/nodejs/node/pull/39469 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
47 lines
1.4 KiB
JavaScript
47 lines
1.4 KiB
JavaScript
// Copyright 2020 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: --enable-testing-opcode-in-wasm
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// Test that tiering up and tiering down works even if functions cannot be
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// compiled with Liftoff.
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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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// Create a simple Wasm module.
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function create_builder(i) {
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const kExprNopForTestingUnsupportedInLiftoff = 0x16;
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const builder = new WasmModuleBuilder();
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builder.addFunction('main', kSig_i_i)
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.addBody([
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kExprLocalGet, 0, kExprNopForTestingUnsupportedInLiftoff,
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...wasmI32Const(i), kExprI32Add
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])
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.exportFunc();
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return builder;
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}
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const instance = create_builder(0).instantiate();
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// Test recompilation.
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const Debug = new DebugWrapper();
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Debug.enable();
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assertFalse(%IsLiftoffFunction(instance.exports.main));
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const newInstance = create_builder(1).instantiate();
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assertFalse(%IsLiftoffFunction(newInstance.exports.main));
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// Async.
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async function testTierDownToLiftoffAsync() {
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Debug.disable();
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const asyncInstance = await create_builder(2).asyncInstantiate();
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// Test recompilation.
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Debug.enable();
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assertFalse(%IsLiftoffFunction(asyncInstance.exports.main));
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const newAsyncInstance = await create_builder(3).asyncInstantiate();
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assertFalse(%IsLiftoffFunction(newAsyncInstance.exports.main));
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}
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assertPromiseResult(testTierDownToLiftoffAsync());
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