421fd3929d
This brings our constants back in line with the changed spec text. We already use kExprTableGet and kExprTableSet, but for locals and globals we still use the old wording. This renaming is mostly mechanical. PS1 was created using: ag -l 'kExpr(Get|Set|Tee)Local' src test | \ xargs -L1 sed -E 's/kExpr(Get|Set|Tee)Local\b/kExprLocal\1/g' -i PS2 contains manual fixes. R=mstarzinger@chromium.org Bug: v8:9810 Change-Id: I1617f1b2a100685a3bf56218e76845a9481959c5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1847354 Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#64161}
67 lines
2.0 KiB
JavaScript
67 lines
2.0 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
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load('test/mjsunit/wasm/wasm-module-builder.js');
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// The number of locals must be greater than the constant defined here:
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// https://cs.chromium.org/chromium/src/v8/src/compiler/x64/code-generator-x64.cc?l=3146
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const kNumLocals = 128;
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function varuint32(val) {
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let bytes = [];
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for (let i = 0; i < 4; ++i) {
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bytes.push(0x80 | ((val >> (7 * i)) & 0x7f));
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}
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bytes.push((val >> (7 * 4)) & 0x7f);
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return bytes;
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}
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// Generate a function that calls the "get" import `kNumLocals` times, and
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// stores each result in a local, then calls the "call" import `kNumLocals`
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// times with the stored local values.
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//
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// The intention is to create a function that has a large stack frame.
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let body = [];
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for (let i = 0; i < kNumLocals; ++i) {
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body.push(kExprCallFunction, 0, kExprLocalSet, ...varuint32(i));
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}
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for (let i = 0; i < kNumLocals; ++i) {
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body.push(kExprLocalGet, ...varuint32(i), kExprCallFunction, 1);
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}
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let builder = new WasmModuleBuilder();
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builder.addImport('mod', 'get', kSig_i_v);
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builder.addImport('mod', 'call', kSig_v_i);
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builder.
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addFunction('main', kSig_v_v).
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addLocals({i32_count: kNumLocals}).
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addBody(body).
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exportAs('main');
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let m1_bytes = builder.toBuffer();
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let m1 = new WebAssembly.Module(m1_bytes);
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// Serialize the module and postMessage it to another thread.
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let serialized_m1 = %SerializeWasmModule(m1);
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let worker_onmessage = function(msg) {
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let {serialized_m1, m1_bytes} = msg;
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let m1_clone = %DeserializeWasmModule(serialized_m1, m1_bytes);
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let imports = {mod: {get: () => 3, call: () => {}}};
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let i2 = new WebAssembly.Instance(m1_clone, imports);
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i2.exports.main();
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postMessage('done');
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}
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let workerScript = "onmessage = " + worker_onmessage.toString();
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let worker = new Worker(workerScript, {type: 'string'});
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worker.postMessage({serialized_m1, m1_bytes});
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// Wait for worker to finish.
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print(worker.getMessage());
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