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}
38 lines
1.1 KiB
JavaScript
38 lines
1.1 KiB
JavaScript
// Copyright 2020 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
// The test needs --no-liftoff because we can't serialize and deserialize
|
|
// Liftoff code.
|
|
// Flags: --expose-wasm --allow-natives-syntax --expose-gc --no-liftoff
|
|
|
|
d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
|
|
|
|
const num_functions = 3;
|
|
|
|
function create_builder() {
|
|
const builder = new WasmModuleBuilder();
|
|
for (let i = 0; i < num_functions; ++i) {
|
|
builder.addFunction('f' + i, kSig_i_v)
|
|
.addBody(wasmI32Const(i))
|
|
.exportFunc();
|
|
}
|
|
return builder;
|
|
}
|
|
|
|
const wire_bytes = create_builder().toBuffer();
|
|
|
|
const serialized = (() => {
|
|
const module = new WebAssembly.Module(wire_bytes);
|
|
const instance = new WebAssembly.Instance(module);
|
|
// Run one function so that serialization happens.
|
|
instance.exports.f2();
|
|
return %SerializeWasmModule(module);
|
|
})();
|
|
|
|
// Collect the compiled module, to avoid sharing of the NativeModule.
|
|
gc();
|
|
|
|
const module = %DeserializeWasmModule(serialized, wire_bytes);
|
|
%SerializeWasmModule(module);
|