v8/test/mjsunit/regress/wasm/regress-724846.js
Jakob Kummerow a8b7d47733 [wasm] Bring memory limits up to spec
Make sure the "initial pages" memory limit is enforced correctly and
throws a CompileError when exceeded.
Bump the "maximum pages" memory limit to 65536.
The --wasm-max-mem-pages flag now controls the "initial pages" limit;
the "maximum pages" limit is always 65536 as spec'ed.

This CL depends on https://github.com/WebAssembly/spec/pull/1121.

Bug: v8:7881, v8:8633
Change-Id: I68d07cef56633b8b8ce3b3d047c14e1096daf547
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2035876
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66400}
2020-02-24 11:00:16 +00:00

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JavaScript

// Copyright 2017 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.
load('test/mjsunit/wasm/wasm-module-builder.js');
// Flags: --wasm-max-mem-pages=49151
let builder = new WasmModuleBuilder();
const num_pages = 49152;
builder.addMemory(num_pages, num_pages);
// num_pages * 64k (page size) > kMaxInt.
assertThrows(() => builder.instantiate(), WebAssembly.CompileError);