eb129a5cf1
The original CL introduced a test that does not work when it is executed concurrently on multiple isolates. This CL skips this test configuration. Original change's description: > [wasm] Lazy compilation after deserialization > > The serialization format contains one boolean flag per function which > specifies whether the function code exists in the serialized module or > not. With this CL, this boolean flag is extended to a three-value flag > which indicates whether the function exists, and if not, whether the > function was executed before serialization. This information can then be > used upon deserialization to compile only those functions that were > executed before serialization. > > Design doc: https://docs.google.com/document/d/1U3uqq4njqLqFhr1G2sU_bmpQxY-3bvfG55udSb-DvA4/edit?usp=sharing > > Bug: v8:12281 Change-Id: I36ce90b37736172aa01c47ab04e154ec8ea2d8aa Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3380590 Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/main@{#78564}
58 lines
1.6 KiB
JavaScript
58 lines
1.6 KiB
JavaScript
// Copyright 2021 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: --allow-natives-syntax --liftoff --no-wasm-tier-up --expose-gc
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// Flags: --no-wasm-dynamic-tiering
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// Compile functions 0 and 2 with Turbofan, the rest with Liftoff:
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// Flags: --wasm-tier-mask-for-testing=5
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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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const num_functions = 5;
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function create_builder() {
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const builder = new WasmModuleBuilder();
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for (let i = 0; i < num_functions; ++i) {
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builder.addFunction('f' + i, kSig_i_v)
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.addBody(wasmI32Const(i))
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.exportFunc();
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}
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return builder;
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}
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function check(instance) {
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for (let i = 0; i < num_functions; ++i) {
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const expect_turbofan = i == 0 || i == 2;
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assertEquals(
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expect_turbofan, %IsTurboFanFunction(instance.exports['f' + i]),
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'function ' + i);
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}
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}
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const wire_bytes = create_builder().toBuffer();
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function testTierTestingFlag() {
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print(arguments.callee.name);
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const module = new WebAssembly.Module(wire_bytes);
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const buff = %SerializeWasmModule(module);
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const instance = new WebAssembly.Instance(module);
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check(instance);
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return buff;
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};
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const serialized_module = testTierTestingFlag();
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// Do some GCs to make sure the first module got collected and removed from the
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// module cache.
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gc();
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gc();
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gc();
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(function testSerializedModule() {
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print(arguments.callee.name);
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const module = %DeserializeWasmModule(serialized_module, wire_bytes);
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const instance = new WebAssembly.Instance(module);
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check(instance);
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})();
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