// 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. // Flags: --wasm-max-mem-pages=49152 // Save some memory on Linux; other platforms ignore this flag. // Flags: --multi-mapped-mock-allocator // This test makes sure things don't break once we support >2GB wasm memories. load("test/mjsunit/wasm/wasm-module-builder.js"); (function testHugeMemory() { print(arguments.callee.name); var builder = new WasmModuleBuilder(); const num_pages = 49152; // 3GB builder.addMemory(num_pages, num_pages, true); builder.addFunction("geti", kSig_i_ii) .addBody([ kExprLocalGet, 0, kExprLocalGet, 1, kExprI32Mul, kExprI32LoadMem, 0, 0, ]) .exportFunc(); var module = builder.instantiate(); const geti = module.exports.geti; print("In bounds"); assertEquals(0, geti(2500, 1 << 20)); print("Out of bounds"); assertTraps(kTrapMemOutOfBounds, () => geti(3500, 1 << 20)); })(); (function testHugeMemoryConstInBounds() { print(arguments.callee.name); var builder = new WasmModuleBuilder(); const num_pages = 49152; // 3GB builder.addMemory(num_pages, num_pages, true); builder.addFunction("geti", kSig_i_v) .addBody([ kExprI32Const, 0x80, 0x80, 0x80, 0x80, 0x7A, // 0xA0000000, 2.5GB kExprI32LoadMem, 0, 0, ]) .exportFunc(); var module = builder.instantiate(); const geti = module.exports.geti; print("In bounds"); assertEquals(0, geti()); })(); (function testHugeMemoryConstOutOfBounds() { print(arguments.callee.name); var builder = new WasmModuleBuilder(); const num_pages = 49152; // 3GB builder.addMemory(num_pages, num_pages, true); builder.addFunction("geti", kSig_i_v) .addBody([ kExprI32Const, 0x80, 0x80, 0x80, 0x80, 0x7E, // 0xE0000000, 3.5GB kExprI32LoadMem, 0, 0, ]) .exportFunc(); var module = builder.instantiate(); const geti = module.exports.geti; print("Out of bounds"); assertTraps(kTrapMemOutOfBounds, geti); })(); (function testGrowHugeMemory() { print(arguments.callee.name); let mem = new WebAssembly.Memory({initial: 1}); mem.grow(49151); })();