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f226350fcb
PR-URL: https://github.com/nodejs/node/pull/47251 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
45 lines
1.8 KiB
JavaScript
45 lines
1.8 KiB
JavaScript
// Copyright 2022 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: --wasm-max-code-space-size-mb=1
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// Disable lazy compilation, so we actually generate a lot of code at once.
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// Flags: --no-wasm-lazy-compilation
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// Limit the number of background threads, so each thread generates more code.
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// Flags: --wasm-num-compilation-tasks=2
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// This is a regression test for https://crbug.com/v8/13436. If a single
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// background thread generates more code than fits in a single code space, we
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// need to split it into multiple code spaces.
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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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const start = performance.now();
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function time(name) {
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const ms_since_start = (performance.now() - start).toFixed(1).padStart(7);
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print(`[${ms_since_start}] ${name}`);
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}
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// At the time of writing this test (Nov 2022), this module generated ~20MB of
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// code on x64 and ~18MB on arm64.
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const builder = new WasmModuleBuilder();
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const kNumFunctions = 1500;
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// Build a large body. Then append one instruction to get different code per
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// function (for the case that we decide to merge identical code objects in the
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// future).
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time('Build function template.');
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let body_template = [kExprLocalGet, 0];
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for (let i = 0; i < kNumFunctions; ++i) {
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body_template.push(kExprCallFunction, ...wasmSignedLeb(i));
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}
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time(`Adding ${kNumFunctions} functions`);
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for (let i = 0; i < kNumFunctions; ++i) {
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if (i != 0 && i % 100 == 0) time(`... added ${i} functions`);
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let body = body_template.concat([...wasmI32Const(i), kExprI32Add, kExprEnd]);
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builder.addFunction('f' + i, kSig_i_i).addBodyWithEnd(body);
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}
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time('Building buffer.');
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const wasm_buf = builder.toBuffer();
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time('Compiling Wasm module.');
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new WebAssembly.Module(wasm_buf);
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