3390e57553
Bug: v8:10021 Change-Id: I23a693064c44cd620a874787bcc00cb42bc5874f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1999158 Commit-Queue: Deepti Gandluri <gdeepti@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Reviewed-by: Ben Smith <binji@chromium.org> Cr-Commit-Position: refs/heads/master@{#65933}
69 lines
2.4 KiB
JavaScript
69 lines
2.4 KiB
JavaScript
// Copyright 2018 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 --expose-gc
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load("test/mjsunit/wasm/wasm-module-builder.js");
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(function TestPostInterpretedModule() {
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let builder = new WasmModuleBuilder();
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let add = builder.addFunction("add", kSig_i_ii)
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.addBody([kExprLocalGet, 0, kExprLocalGet, 1, kExprI32Add])
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.exportFunc();
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// Trigger a GC to ensure that the underlying native module is not a cached
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// one from a previous run, with functions already redirected to the
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// interpreter. This is not observable from pure JavaScript, but this is
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// observable with the internal runtime functions used in this test.
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gc();
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let module = builder.toModule();
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let instance = new WebAssembly.Instance(module);
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let exp = instance.exports;
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let workerScript = `
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var instance = null;
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onmessage = function(message) {
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try {
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if (message.command == 'module') {
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instance = new WebAssembly.Instance(message.module);
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postMessage('OK');
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}
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if (message.command == 'call') {
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let result = instance.exports.add(40, 2);
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postMessage(result);
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}
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} catch(e) {
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postMessage('ERROR: ' + e);
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}
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}
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`;
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let worker = new Worker(workerScript, {type: 'string'});
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// Call method without using the interpreter.
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var initial_interpreted = %WasmNumInterpretedCalls(instance);
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assertEquals(23, exp.add(20, 3));
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assertEquals(initial_interpreted + 0, %WasmNumInterpretedCalls(instance));
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// Send module to the worker, still not interpreting.
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worker.postMessage({ command:'module', module:module });
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assertEquals('OK', worker.getMessage());
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worker.postMessage({ command:'call' });
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assertEquals(42, worker.getMessage());
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assertEquals(initial_interpreted + 0, %WasmNumInterpretedCalls(instance));
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// Switch to the interpreter and call method.
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%RedirectToWasmInterpreter(instance, add.index);
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assertEquals(23, exp.add(20, 3));
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assertEquals(initial_interpreted + 1, %WasmNumInterpretedCalls(instance));
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// Let worker call interpreted function.
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worker.postMessage({ command:'call' });
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assertEquals(42, worker.getMessage());
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assertEquals(initial_interpreted + 1, %WasmNumInterpretedCalls(instance));
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// All done.
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worker.terminate();
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})();
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