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// Copyright 2019 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
d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
const num_functions = 200;
function create_builder(delta = 0) {
const builder = new WasmModuleBuilder();
for (let i = 0; i < num_functions; ++i) {
builder.addFunction('f' + i, kSig_i_v)
.addBody(wasmI32Const(i + delta))
.exportFunc();
}
return builder;
}
function checkTieredDown(instance) {
for (let i = 0; i < num_functions; ++i) {
assertTrue(%IsLiftoffFunction(instance.exports['f' + i]));
}
}
function checkTieredUp(instance) {
// Busy waiting until all functions are tiered up.
let num_liftoff_functions;
while (true) {
num_liftoff_functions = 0;
for (let i = 0; i < num_functions; ++i) {
if (%IsLiftoffFunction(instance.exports['f' + i])) {
num_liftoff_functions++;
}
}
if (num_liftoff_functions == 0) return;
}
}
function check(instance) {
%WasmTierDown();
checkTieredDown(instance);
for (let i = 0; i < num_functions; ++i) {
%WasmTierUpFunction(instance, i);
}
checkTieredDown(instance);
%WasmTierUp();
checkTieredUp(instance);
}
(function testTierDownToLiftoff() {
print(arguments.callee.name);
const instance = create_builder().instantiate();
check(instance);
})();
// Use slightly different module for this test to avoid sharing native module.
async function testTierDownToLiftoffAsync() {
print(arguments.callee.name);
const instance = await create_builder(num_functions).asyncInstantiate();
check(instance);
}
assertPromiseResult(testTierDownToLiftoffAsync());
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