6ce3046e2b
This is the first part of switching between Liftoff and Turbofan in debugging Wasm. In this CL, we implemented the logic to tier down/up all functions in module. Bug: v8:9654 Change-Id: Ia25103ca29963afa103c124ff5f159f197c2b2b0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1970470 Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com> Reviewed-by: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#65529}
57 lines
1.5 KiB
JavaScript
57 lines
1.5 KiB
JavaScript
// Copyright 2019 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 --wasm-tier-up
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load('test/mjsunit/wasm/wasm-module-builder.js');
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const num_functions = 2;
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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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%WasmTierUpFunction(instance, i);
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assertFalse(%IsLiftoffFunction(instance.exports['f' + i]));
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}
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%WasmTierDownModule(instance);
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for (let i = 0; i < num_functions; ++i) {
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assertTrue(%IsLiftoffFunction(instance.exports['f' + i]));
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}
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for (let i = 0; i < num_functions; ++i) {
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%WasmTierUpFunction(instance, i);
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assertTrue(%IsLiftoffFunction(instance.exports['f' + i]));
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}
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%WasmTierUpModule(instance);
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for (let i = 0; i < num_functions; ++i) {
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assertFalse(%IsLiftoffFunction(instance.exports['f' + i]));
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}
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}
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(function testTierDownToLiftoff() {
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print(arguments.callee.name);
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const instance = create_builder().instantiate();
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check(instance);
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})();
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async function testTierDownToLiftoffAsync() {
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print(arguments.callee.name);
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const instance = await create_builder().asyncInstantiate();
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check(instance);
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}
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assertPromiseResult(testTierDownToLiftoffAsync());
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