| // Copyright 2015 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: --expose-wasm --expose-gc --stress-compaction |
| |
| load("test/mjsunit/wasm/wasm-constants.js"); |
| load("test/mjsunit/wasm/wasm-module-builder.js"); |
| |
| var kMemSize = 65536; |
| |
| function genModule(memory) { |
| var builder = new WasmModuleBuilder(); |
| |
| builder.addMemory(1, 1, true); |
| builder.addFunction("main", [kAstI32, kAstI32]) |
| .addBody([ |
| kExprBlock,2, |
| kExprLoop,1, |
| kExprIf, |
| kExprGetLocal,0, |
| kExprBr, 0, |
| kExprIfElse, |
| kExprI32LoadMem,0,0,kExprGetLocal,0, |
| kExprBr,2, kExprI8Const, 255, |
| kExprSetLocal,0, |
| kExprI32Sub,kExprGetLocal,0,kExprI8Const,4, |
| kExprI8Const,0]) |
| .exportFunc(); |
| |
| return builder.instantiate(null, memory); |
| } |
| |
| function testPokeMemory() { |
| var module = genModule(null); |
| var buffer = module.exports.memory; |
| var main = module.exports.main; |
| assertEquals(kMemSize, buffer.byteLength); |
| |
| var array = new Int8Array(buffer); |
| assertEquals(kMemSize, array.length); |
| |
| for (var i = 0; i < kMemSize; i++) { |
| assertEquals(0, array[i]); |
| } |
| |
| for (var i = 0; i < 10; i++) { |
| assertEquals(0, main(kMemSize - 4)); |
| |
| array[kMemSize/2 + i] = 1; |
| assertEquals(0, main(kMemSize/2 - 4)); |
| assertEquals(-1, main(kMemSize - 4)); |
| |
| array[kMemSize/2 + i] = 0; |
| assertEquals(0, main(kMemSize - 4)); |
| } |
| } |
| |
| testPokeMemory(); |
| |
| function testSurvivalAcrossGc() { |
| var checker = genModule(null).exports.main; |
| for (var i = 0; i < 5; i++) { |
| print("gc run ", i); |
| assertEquals(0, checker(kMemSize - 4)); |
| gc(); |
| } |
| } |
| |
| testSurvivalAcrossGc(); |
| testSurvivalAcrossGc(); |
| testSurvivalAcrossGc(); |
| testSurvivalAcrossGc(); |
| |
| |
| function testPokeOuterMemory() { |
| var buffer = new ArrayBuffer(kMemSize); |
| var module = genModule(buffer); |
| var main = module.exports.main; |
| assertEquals(kMemSize, buffer.byteLength); |
| |
| var array = new Int8Array(buffer); |
| assertEquals(kMemSize, array.length); |
| |
| for (var i = 0; i < kMemSize; i++) { |
| assertEquals(0, array[i]); |
| } |
| |
| for (var i = 0; i < 10; i++) { |
| assertEquals(0, main(kMemSize - 4)); |
| |
| array[kMemSize/2 + i] = 1; |
| assertEquals(0, main(kMemSize/2 - 4)); |
| assertEquals(-1, main(kMemSize - 4)); |
| |
| array[kMemSize/2 + i] = 0; |
| assertEquals(0, main(kMemSize - 4)); |
| } |
| } |
| |
| testPokeOuterMemory(); |
| |
| function testOuterMemorySurvivalAcrossGc() { |
| var buffer = new ArrayBuffer(kMemSize); |
| var checker = genModule(buffer).exports.main; |
| for (var i = 0; i < 5; i++) { |
| print("gc run ", i); |
| assertEquals(0, checker(kMemSize - 4)); |
| gc(); |
| } |
| } |
| |
| testOuterMemorySurvivalAcrossGc(); |
| testOuterMemorySurvivalAcrossGc(); |
| testOuterMemorySurvivalAcrossGc(); |
| testOuterMemorySurvivalAcrossGc(); |
| |
| |
| function testOOBThrows() { |
| var builder = new WasmModuleBuilder(); |
| |
| builder.addMemory(1, 1, true); |
| builder.addFunction("geti", [kAstI32, kAstI32, kAstI32]) |
| .addBody([ |
| kExprI32StoreMem, 0, 0, kExprGetLocal, 0, kExprI32LoadMem, 0, 0, kExprGetLocal, 1 |
| ]) |
| .exportFunc(); |
| |
| var module = builder.instantiate(); |
| |
| var offset; |
| |
| function read() { return module.exports.geti(0, offset); } |
| function write() { return module.exports.geti(offset, 0); } |
| |
| for (offset = 0; offset < 65533; offset++) { |
| assertEquals(0, read()); |
| assertEquals(0, write()); |
| } |
| |
| |
| for (offset = 65534; offset < 66536; offset++) { |
| assertTraps(kTrapMemOutOfBounds, read); |
| assertTraps(kTrapMemOutOfBounds, write); |
| } |
| } |
| |
| testOOBThrows(); |