| // 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"); |
| |
| var kMemSize = 4096; |
| |
| function genModule(memory) { |
| var kBodySize = 27; |
| var kNameMainOffset = 28 + kBodySize + 1; |
| |
| var data = bytes( |
| kDeclMemory, |
| 12, 12, 1, // memory |
| // -- signatures |
| kDeclSignatures, 1, |
| 1, kAstI32, kAstI32, // int->int |
| // -- main function |
| kDeclFunctions, 1, |
| kDeclFunctionLocals | kDeclFunctionName | kDeclFunctionExport, |
| 0, 0, |
| kNameMainOffset, 0, 0, 0, // name offset |
| 1, 0, // local int32 count |
| 0, 0, // local int64 count |
| 0, 0, // local float32 count |
| 0, 0, // local float64 count |
| kBodySize, 0, // code size |
| // main body: while(i) { if(mem[i]) return -1; i -= 4; } return 0; |
| kExprBlock,2, |
| kExprLoop,1, |
| kExprIf, |
| kExprGetLocal,0, |
| kExprBr, 0, |
| kExprIfElse, |
| kExprI32LoadMem,0,kExprGetLocal,0, |
| kExprBr,2, kExprI8Const, 255, |
| kExprSetLocal,0, |
| kExprI32Sub,kExprGetLocal,0,kExprI8Const,4, |
| kExprI8Const,0, |
| // names |
| kDeclEnd, |
| 'm', 'a', 'i', 'n', 0 // -- |
| ); |
| |
| return _WASMEXP_.instantiateModule(data, null, memory); |
| } |
| |
| function testPokeMemory() { |
| var module = genModule(null); |
| var buffer = module.memory; |
| 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, module.main(kMemSize - 4)); |
| |
| array[kMemSize/2 + i] = 1; |
| assertEquals(0, module.main(kMemSize/2 - 4)); |
| assertEquals(-1, module.main(kMemSize - 4)); |
| |
| array[kMemSize/2 + i] = 0; |
| assertEquals(0, module.main(kMemSize - 4)); |
| } |
| } |
| |
| testPokeMemory(); |
| |
| function testSurvivalAcrossGc() { |
| var checker = genModule(null).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); |
| 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, module.main(kMemSize - 4)); |
| |
| array[kMemSize/2 + i] = 1; |
| assertEquals(0, module.main(kMemSize/2 - 4)); |
| assertEquals(-1, module.main(kMemSize - 4)); |
| |
| array[kMemSize/2 + i] = 0; |
| assertEquals(0, module.main(kMemSize - 4)); |
| } |
| } |
| |
| testPokeOuterMemory(); |
| |
| function testOuterMemorySurvivalAcrossGc() { |
| var buffer = new ArrayBuffer(kMemSize); |
| var checker = genModule(buffer).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 kBodySize = 8; |
| var kNameMainOffset = 29 + kBodySize + 1; |
| |
| var data = bytes( |
| kDeclMemory, |
| 12, 12, 1, // memory = 4KB |
| // -- signatures |
| kDeclSignatures, 1, |
| 2, kAstI32, kAstI32, kAstI32, // int->int |
| // -- main function |
| kDeclFunctions, 1, |
| kDeclFunctionLocals | kDeclFunctionName | kDeclFunctionExport, |
| 0, 0, |
| kNameMainOffset, 0, 0, 0, // name offset |
| 1, 0, // local int32 count |
| 0, 0, // local int64 count |
| 0, 0, // local float32 count |
| 0, 0, // local float64 count |
| kBodySize, 0, // code size |
| // geti: return mem[a] = mem[b] |
| kExprI32StoreMem, 0, kExprGetLocal, 0, kExprI32LoadMem, 0, kExprGetLocal, 1, |
| // names |
| kDeclEnd, |
| 'g','e','t','i', 0 // -- |
| ); |
| |
| var memory = null; |
| var module = _WASMEXP_.instantiateModule(data, null, memory); |
| |
| var offset; |
| |
| function read() { return module.geti(0, offset); } |
| function write() { return module.geti(offset, 0); } |
| |
| for (offset = 0; offset < 4092; offset++) { |
| assertEquals(0, read()); |
| assertEquals(0, write()); |
| } |
| |
| |
| for (offset = 4093; offset < 4124; offset++) { |
| assertTraps(kTrapMemOutOfBounds, read); |
| assertTraps(kTrapMemOutOfBounds, write); |
| } |
| } |
| |
| testOOBThrows(); |