6da9254ccb
This is a reland of 183bc643b5.
Original change's description:
> [wasm] Fix page size constant + test limits on max pages.
>
> BUG=chromium:801604
> R=bbudge@chromium.org,titzer@chromium.org
>
> Change-Id: I5fa57d5f8ea288d7aef7d466cbf11df46c4dcd1d
> Reviewed-on: https://chromium-review.googlesource.com/869468
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Bill Budge <bbudge@chromium.org>
> Commit-Queue: Brad Nelson <bradnelson@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#50665}
Bug: chromium:801604
Change-Id: I89943644f5921f8635e62af82bb472c7bfd5e145
Reviewed-on: https://chromium-review.googlesource.com/874696
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50707}
74 lines
2.4 KiB
JavaScript
74 lines
2.4 KiB
JavaScript
// Copyright 2016 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: --expose-wasm
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load("test/mjsunit/wasm/wasm-constants.js");
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load("test/mjsunit/wasm/wasm-module-builder.js");
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var kV8MaxWasmMemoryPages = 32767; // ~ 2 GiB
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var kSpecMaxWasmMemoryPages = 65536; // 4 GiB
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(function testMemorySizeZero() {
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print(arguments.callee.name);
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var builder = new WasmModuleBuilder();
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builder.addMemory(0, 0, false);
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builder.addFunction("memory_size", kSig_i_v)
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.addBody([kExprMemorySize, kMemoryZero])
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.exportFunc();
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var module = builder.instantiate();
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assertEquals(0, module.exports.memory_size());
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})();
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(function testMemorySizeNonZero() {
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print(arguments.callee.name);
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var builder = new WasmModuleBuilder();
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var size = 11;
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builder.addMemory(size, size, false);
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builder.addFunction("memory_size", kSig_i_v)
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.addBody([kExprMemorySize, kMemoryZero])
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.exportFunc();
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var module = builder.instantiate();
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assertEquals(size, module.exports.memory_size());
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})();
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(function testMemorySizeSpecMaxOk() {
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print(arguments.callee.name);
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var builder = new WasmModuleBuilder();
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builder.addMemory(1, kSpecMaxWasmMemoryPages, true);
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builder.addFunction("memory_size", kSig_i_v)
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.addBody([kExprMemorySize, kMemoryZero])
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.exportFunc();
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var module = builder.instantiate();
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assertEquals(1, module.exports.memory_size());
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})();
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(function testMemorySizeV8MaxPlus1Throws() {
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print(arguments.callee.name);
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var builder = new WasmModuleBuilder();
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builder.addMemory(kV8MaxWasmMemoryPages + 1,
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kV8MaxWasmMemoryPages + 1, false);
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builder.addFunction("memory_size", kSig_i_v)
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.addBody([kExprMemorySize, kMemoryZero])
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.exportFunc();
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assertThrows(() => builder.instantiate());
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})();
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(function testMemorySpecMaxOk() {
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print(arguments.callee.name);
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var builder = new WasmModuleBuilder();
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builder.addMemory(1, kSpecMaxWasmMemoryPages, false);
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builder.addFunction("memory_size", kSig_i_v)
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.addBody([kExprMemorySize, kMemoryZero])
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.exportFunc();
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var module = builder.instantiate();
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assertEquals(1, module.exports.memory_size());
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})();
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(function testMemoryInitialMaxPlus1Throws() {
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print(arguments.callee.name);
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assertThrows(() => new WebAssembly.Memory(
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{initial: kV8WasmMaxMemoryPages + 1}));
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})();
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