62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
|
// Copyright 2022 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.
|
||
|
|
|
||
|
|
// Flags: --allow-natives-syntax --expose-gc --wasm-dynamic-tiering --liftoff
|
||
|
|
// Make the test faster:
|
||
|
|
// Flags: --wasm-tiering-budget=1000
|
||
|
|
|
||
|
|
// This test busy-waits for tier-up to be complete, hence it does not work in
|
||
|
|
// predictable mode where we only have a single thread.
|
||
|
|
// Flags: --no-predictable
|
||
|
|
|
||
|
|
d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
|
||
|
|
|
||
|
|
const num_functions = 3;
|
||
|
|
|
||
|
|
function create_builder() {
|
||
|
|
const builder = new WasmModuleBuilder();
|
||
|
|
builder.addImport("foo", "bar", kSig_i_v);
|
||
|
|
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();
|
||
|
|
|
||
|
|
function serializeModule() {
|
||
|
|
const module = new WebAssembly.Module(wire_bytes);
|
||
|
|
let instance = new WebAssembly.Instance(module, {foo: {bar: () => 1}});
|
||
|
|
// Execute {f1} until it gets tiered up.
|
||
|
|
while (%IsLiftoffFunction(instance.exports.f1)) {
|
||
|
|
instance.exports.f1();
|
||
|
|
}
|
||
|
|
// Execute {f2} once, so that the module knows that this is a used function.
|
||
|
|
instance.exports.f2();
|
||
|
|
const buff = %SerializeWasmModule(module);
|
||
|
|
return buff;
|
||
|
|
};
|
||
|
|
|
||
|
|
const serialized_module = serializeModule();
|
||
|
|
// Do some GCs to make sure the first module got collected and removed from the
|
||
|
|
// module cache.
|
||
|
|
gc();
|
||
|
|
gc();
|
||
|
|
gc();
|
||
|
|
|
||
|
|
(function testSerializedModule() {
|
||
|
|
print(arguments.callee.name);
|
||
|
|
const module = %DeserializeWasmModule(serialized_module, wire_bytes);
|
||
|
|
|
||
|
|
const instance = new WebAssembly.Instance(module, {foo: {bar: () => 1}});
|
||
|
|
|
||
|
|
assertTrue(%IsTurboFanFunction(instance.exports.f1));
|
||
|
|
assertTrue(%IsLiftoffFunction(instance.exports.f2));
|
||
|
|
assertTrue(
|
||
|
|
!%IsLiftoffFunction(instance.exports.f0) &&
|
||
|
|
!%IsTurboFanFunction(instance.exports.f0));
|
||
|
|
})();
|