e9036451af
Store a flag per isolate whether new modules should be kept in tiered-down state from the beginning. Adjust initial compilation if flag is set. Bug: v8:9654 Change-Id: I5aae435fb807f3eaa7efafe9af60451ad3c7e14d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2028452 Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com> Reviewed-by: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#66321}
43 lines
1.2 KiB
JavaScript
43 lines
1.2 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: --experimental-wasm-anyref
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load("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 builder = new WasmModuleBuilder();
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builder.addFunction('main', kSig_i_r)
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.addBody([
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kExprLocalGet, 0, kExprRefIsNull,
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...wasmI32Const(i),
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kExprI32Add])
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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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