summaryrefslogtreecommitdiff
path: root/deps/v8/test/mjsunit/wasm/interpreter.js
blob: 0bf3f8610b957162c425b28ac9f0d710f1bcc0d0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
// Copyright 2016 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-interpret-all --allow-natives-syntax --expose-gc

load('test/mjsunit/wasm/wasm-constants.js');
load('test/mjsunit/wasm/wasm-module-builder.js');

// The stack trace contains file path, only keep "interpreter.js".
let stripPath = s => s.replace(/[^ (]*interpreter\.js/g, 'interpreter.js');

function checkStack(stack, expected_lines) {
  print('stack: ' + stack);
  var lines = stack.split('\n');
  assertEquals(expected_lines.length, lines.length);
  for (var i = 0; i < lines.length; ++i) {
    let test =
        typeof expected_lines[i] == 'string' ? assertEquals : assertMatches;
    test(expected_lines[i], lines[i], 'line ' + i);
  }
}

(function testCallImported() {
  print(arguments.callee.name);
  var stack;
  let func = () => stack = new Error('test imported stack').stack;

  var builder = new WasmModuleBuilder();
  builder.addImport('mod', 'func', kSig_v_v);
  builder.addFunction('main', kSig_v_v)
      .addBody([kExprCallFunction, 0])
      .exportFunc();
  var instance = builder.instantiate({mod: {func: func}});
  // Test that this does not mess up internal state by executing it three times.
  for (var i = 0; i < 3; ++i) {
    var interpreted_before = %WasmNumInterpretedCalls(instance);
    instance.exports.main();
    assertEquals(interpreted_before + 1, %WasmNumInterpretedCalls(instance));
    checkStack(stripPath(stack), [
      'Error: test imported stack',                           // -
      /^    at func \(interpreter.js:\d+:28\)$/,              // -
      '    at main (wasm-function[1]:1)',                     // -
      /^    at testCallImported \(interpreter.js:\d+:22\)$/,  // -
      /^    at interpreter.js:\d+:3$/
    ]);
  }
})();

(function testCallImportedWithParameters() {
  print(arguments.callee.name);
  var stack;
  var passed_args = [];
  let func1 = (i, j) => (passed_args.push(i, j), 2 * i + j);
  let func2 = (f) => (passed_args.push(f), 8 * f);

  var builder = new WasmModuleBuilder();
  builder.addImport('mod', 'func1', makeSig([kWasmI32, kWasmI32], [kWasmF32]));
  builder.addImport('mod', 'func2', makeSig([kWasmF64], [kWasmI32]));
  builder.addFunction('main', makeSig([kWasmI32, kWasmF64], [kWasmF32]))
      .addBody([
        // call #0 with arg 0 and arg 0 + 1
        kExprGetLocal, 0, kExprGetLocal, 0, kExprI32Const, 1, kExprI32Add,
        kExprCallFunction, 0,
        // call #1 with arg 1
        kExprGetLocal, 1, kExprCallFunction, 1,
        // convert returned value to f32
        kExprF32UConvertI32,
        // add the two values
        kExprF32Add
      ])
      .exportFunc();
  var instance = builder.instantiate({mod: {func1: func1, func2: func2}});
  var interpreted_before = %WasmNumInterpretedCalls(instance);
  var args = [11, 0.3];
  var ret = instance.exports.main(...args);
  assertEquals(interpreted_before + 1, %WasmNumInterpretedCalls(instance));
  var passed_test_args = [...passed_args];
  var expected = func1(args[0], args[0] + 1) + func2(args[1]) | 0;
  assertEquals(expected, ret);
  assertArrayEquals([args[0], args[0] + 1, args[1]], passed_test_args);
})();

(function testTrap() {
  print(arguments.callee.name);
  var builder = new WasmModuleBuilder();
  var foo_idx = builder.addFunction('foo', kSig_v_v)
                    .addBody([kExprNop, kExprNop, kExprUnreachable])
                    .index;
  builder.addFunction('main', kSig_v_v)
      .addBody([kExprNop, kExprCallFunction, foo_idx])
      .exportFunc();
  var instance = builder.instantiate();
  // Test that this does not mess up internal state by executing it three times.
  for (var i = 0; i < 3; ++i) {
    var interpreted_before = %WasmNumInterpretedCalls(instance);
    var stack;
    try {
      instance.exports.main();
      assertUnreachable();
    } catch (e) {
      stack = e.stack;
    }
    assertEquals(interpreted_before + 2, %WasmNumInterpretedCalls(instance));
    checkStack(stripPath(stack), [
      'RuntimeError: unreachable',                    // -
      '    at foo (wasm-function[0]:3)',              // -
      '    at main (wasm-function[1]:2)',             // -
      /^    at testTrap \(interpreter.js:\d+:24\)$/,  // -
      /^    at interpreter.js:\d+:3$/
    ]);
  }
})();

(function testThrowFromImport() {
  print(arguments.callee.name);
  function func() {
    throw new Error('thrown from imported function');
  }
  var builder = new WasmModuleBuilder();
  builder.addImport("mod", "func", kSig_v_v);
  builder.addFunction('main', kSig_v_v)
      .addBody([kExprCallFunction, 0])
      .exportFunc();
  var instance = builder.instantiate({mod: {func: func}});
  // Test that this does not mess up internal state by executing it three times.
  for (var i = 0; i < 3; ++i) {
    var interpreted_before = %WasmNumInterpretedCalls(instance);
    var stack;
    try {
      instance.exports.main();
      assertUnreachable();
    } catch (e) {
      stack = e.stack;
    }
    assertEquals(interpreted_before + 1, %WasmNumInterpretedCalls(instance));
    checkStack(stripPath(stack), [
      'Error: thrown from imported function',                    // -
      /^    at func \(interpreter.js:\d+:11\)$/,                 // -
      '    at main (wasm-function[1]:1)',                        // -
      /^    at testThrowFromImport \(interpreter.js:\d+:24\)$/,  // -
      /^    at interpreter.js:\d+:3$/
    ]);
  }
})();

(function testGlobals() {
  print(arguments.callee.name);
  var builder = new WasmModuleBuilder();
  builder.addGlobal(kWasmI32, true);  // 0
  builder.addGlobal(kWasmI64, true);  // 1
  builder.addGlobal(kWasmF32, true);  // 2
  builder.addGlobal(kWasmF64, true);  // 3
  builder.addFunction('get_i32', kSig_i_v)
      .addBody([kExprGetGlobal, 0])
      .exportFunc();
  builder.addFunction('get_i64', kSig_d_v)
      .addBody([kExprGetGlobal, 1, kExprF64SConvertI64])
      .exportFunc();
  builder.addFunction('get_f32', kSig_d_v)
      .addBody([kExprGetGlobal, 2, kExprF64ConvertF32])
      .exportFunc();
  builder.addFunction('get_f64', kSig_d_v)
      .addBody([kExprGetGlobal, 3])
      .exportFunc();
  builder.addFunction('set_i32', kSig_v_i)
      .addBody([kExprGetLocal, 0, kExprSetGlobal, 0])
      .exportFunc();
  builder.addFunction('set_i64', kSig_v_d)
      .addBody([kExprGetLocal, 0, kExprI64SConvertF64, kExprSetGlobal, 1])
      .exportFunc();
  builder.addFunction('set_f32', kSig_v_d)
      .addBody([kExprGetLocal, 0, kExprF32ConvertF64, kExprSetGlobal, 2])
      .exportFunc();
  builder.addFunction('set_f64', kSig_v_d)
      .addBody([kExprGetLocal, 0, kExprSetGlobal, 3])
      .exportFunc();
  var instance = builder.instantiate();
  // Initially, all should be zero.
  assertEquals(0, instance.exports.get_i32());
  assertEquals(0, instance.exports.get_i64());
  assertEquals(0, instance.exports.get_f32());
  assertEquals(0, instance.exports.get_f64());
  // Assign values to all variables.
  var values = [4711, 1<<40 + 1 << 33, 0.3, 12.34567];
  instance.exports.set_i32(values[0]);
  instance.exports.set_i64(values[1]);
  instance.exports.set_f32(values[2]);
  instance.exports.set_f64(values[3]);
  // Now check the values.
  assertEquals(values[0], instance.exports.get_i32());
  assertEquals(values[1], instance.exports.get_i64());
  assertEqualsDelta(values[2], instance.exports.get_f32(), 2**-23);
  assertEquals(values[3], instance.exports.get_f64());
})();

(function testReentrantInterpreter() {
  print(arguments.callee.name);
  var stacks;
  var instance;
  function func(i) {
    stacks.push(new Error('reentrant interpreter test #' + i).stack);
    if (i < 2) instance.exports.main(i + 1);
  }

  var builder = new WasmModuleBuilder();
  builder.addImport('mod', 'func', kSig_v_i);
  builder.addFunction('main', kSig_v_i)
      .addBody([kExprGetLocal, 0, kExprCallFunction, 0])
      .exportFunc();
  instance = builder.instantiate({mod: {func: func}});
  // Test that this does not mess up internal state by executing it three times.
  for (var i = 0; i < 3; ++i) {
    var interpreted_before = %WasmNumInterpretedCalls(instance);
    stacks = [];
    instance.exports.main(0);
    assertEquals(interpreted_before + 3, %WasmNumInterpretedCalls(instance));
    assertEquals(3, stacks.length);
    for (var e = 0; e < stacks.length; ++e) {
      expected = ['Error: reentrant interpreter test #' + e];
      expected.push(/^    at func \(interpreter.js:\d+:17\)$/);
      expected.push('    at main (wasm-function[1]:3)');
      for (var k = e; k > 0; --k) {
        expected.push(/^    at func \(interpreter.js:\d+:33\)$/);
        expected.push('    at main (wasm-function[1]:3)');
      }
      expected.push(
          /^    at testReentrantInterpreter \(interpreter.js:\d+:22\)$/);
      expected.push(/    at interpreter.js:\d+:3$/);
      checkStack(stripPath(stacks[e]), expected);
    }
  }
})();

(function testIndirectImports() {
  print(arguments.callee.name);
  var builder = new WasmModuleBuilder();

  var sig_i_ii = builder.addType(kSig_i_ii);
  var sig_i_i = builder.addType(kSig_i_i);
  var mul = builder.addImport('q', 'mul', sig_i_ii);
  var add = builder.addFunction('add', sig_i_ii).addBody([
    kExprGetLocal, 0, kExprGetLocal, 1, kExprI32Add
  ]);
  var mismatch =
      builder.addFunction('sig_mismatch', sig_i_i).addBody([kExprGetLocal, 0]);
  var main = builder.addFunction('main', kSig_i_iii)
                 .addBody([
                   // Call indirect #0 with args <#1, #2>.
                   kExprGetLocal, 1, kExprGetLocal, 2, kExprGetLocal, 0,
                   kExprCallIndirect, sig_i_ii, kTableZero
                 ])
                 .exportFunc();
  builder.appendToTable([mul, add.index, mismatch.index, main.index]);

  var instance = builder.instantiate({q: {mul: (a, b) => a * b}});

  // Call mul.
  assertEquals(-6, instance.exports.main(0, -2, 3));
  // Call add.
  assertEquals(99, instance.exports.main(1, 22, 77));
  // main and sig_mismatch have another signature.
  assertTraps(kTrapFuncSigMismatch, () => instance.exports.main(2, 12, 33));
  assertTraps(kTrapFuncSigMismatch, () => instance.exports.main(3, 12, 33));
  // Function index 4 does not exist.
  assertTraps(kTrapFuncInvalid, () => instance.exports.main(4, 12, 33));
})();

(function testIllegalImports() {
  print(arguments.callee.name);
  var builder = new WasmModuleBuilder();

  var sig_l_v = builder.addType(kSig_l_v);
  var imp = builder.addImport('q', 'imp', sig_l_v);
  var direct = builder.addFunction('direct', kSig_l_v)
                   .addBody([kExprCallFunction, imp])
                   .exportFunc();
  var indirect = builder.addFunction('indirect', kSig_l_v).addBody([
    kExprI32Const, 0, kExprCallIndirect, sig_l_v, kTableZero
  ]);
  var main =
      builder.addFunction('main', kSig_v_i)
          .addBody([
            // Call indirect #0 with arg #0, drop result.
            kExprGetLocal, 0, kExprCallIndirect, sig_l_v, kTableZero, kExprDrop
          ])
          .exportFunc();
  builder.appendToTable([imp, direct.index, indirect.index]);

  var instance = builder.instantiate({q: {imp: () => 1}});

  // Calling imported functions with i64 in signature should fail.
  try {
    // Via direct call.
    instance.exports.main(1);
  } catch (e) {
    if (!(e instanceof TypeError)) throw e;
    checkStack(stripPath(e.stack), [
      'TypeError: ' + kTrapMsgs[kTrapTypeError],                // -
      '    at direct (wasm-function[1]:1)',                     // -
      '    at main (wasm-function[3]:3)',                       // -
      /^    at testIllegalImports \(interpreter.js:\d+:22\)$/,  // -
      /^    at interpreter.js:\d+:3$/
    ]);
  }
  try {
    // Via indirect call.
    instance.exports.main(2);
  } catch (e) {
    if (!(e instanceof TypeError)) throw e;
    checkStack(stripPath(e.stack), [
      'TypeError: ' + kTrapMsgs[kTrapTypeError],                // -
      '    at indirect (wasm-function[2]:1)',                   // -
      '    at main (wasm-function[3]:3)',                       // -
      /^    at testIllegalImports \(interpreter.js:\d+:22\)$/,  // -
      /^    at interpreter.js:\d+:3$/
    ]);
  }
})();

(function testImportExportedFunction() {
  // See https://crbug.com/860392.
  print(arguments.callee.name);
  let instance0 = (() => {
    let builder = new WasmModuleBuilder();
    builder.addFunction('f11', kSig_i_v).addBody(wasmI32Const(11)).exportFunc();
    builder.addFunction('f17', kSig_i_v).addBody(wasmI32Const(17)).exportFunc();
    return builder.instantiate();
  })();

  let builder = new WasmModuleBuilder();
  let sig_i_v = builder.addType(kSig_i_v);
  let f11_imp = builder.addImport('q', 'f11', sig_i_v);
  let f17_imp = builder.addImport('q', 'f17', sig_i_v);
  let add = builder.addFunction('add', sig_i_v).addBody([
    kExprCallFunction, f11_imp,  // call f11
    kExprCallFunction, f17_imp,  // call f17
    kExprI32Add                  // i32.add
  ]).exportFunc();
  let instance = builder.instantiate(
      {q: {f11: instance0.exports.f11, f17: instance0.exports.f17}});

  assertEquals(28, instance.exports.add());
})();

(function testInfiniteRecursion() {
  print(arguments.callee.name);
  var builder = new WasmModuleBuilder();

  var direct = builder.addFunction('main', kSig_v_v)
                   .addBody([kExprNop, kExprCallFunction, 0])
                   .exportFunc();
  var instance = builder.instantiate();

  try {
    instance.exports.main();
    assertUnreachable("should throw");
  } catch (e) {
    if (!(e instanceof RangeError)) throw e;
    checkStack(stripPath(e.stack), [
      'RangeError: Maximum call stack size exceeded',
      '    at main (wasm-function[0]:0)'
    ].concat(Array(9).fill('    at main (wasm-function[0]:2)')));
  }
})();

(function testUnwindSingleActivation() {
  print(arguments.callee.name);
  // Create two activations and unwind just the top one.
  var builder = new WasmModuleBuilder();

  function MyError(i) {
    this.i = i;
  }

  // We call wasm -> func 1 -> wasm -> func2.
  // func2 throws, func 1 catches.
  function func1() {
    try {
      return instance.exports.foo();
    } catch (e) {
      if (!(e instanceof MyError)) throw e;
      return e.i + 2;
    }
  }
  function func2() {
    throw new MyError(11);
  }
  var imp1 = builder.addImport('mod', 'func1', kSig_i_v);
  var imp2 = builder.addImport('mod', 'func2', kSig_v_v);
  builder.addFunction('main', kSig_i_v)
      .addBody([kExprCallFunction, imp1, kExprI32Const, 2, kExprI32Mul])
      .exportFunc();
  builder.addFunction('foo', kSig_v_v)
      .addBody([kExprCallFunction, imp2])
      .exportFunc();
  var instance = builder.instantiate({mod: {func1: func1, func2: func2}});

  var interpreted_before = %WasmNumInterpretedCalls(instance);
  assertEquals(2 * (11 + 2), instance.exports.main());
  assertEquals(interpreted_before + 2, %WasmNumInterpretedCalls(instance));
})();

(function testInterpreterGC() {
  print(arguments.callee.name);
  function run(f) {
    // wrap the creation in a closure so that the only thing returned is
    // the module (i.e. the underlying array buffer of wasm wire bytes dies).
    var module = (() => {
      var builder = new WasmModuleBuilder();
      var imp = builder.addImport('mod', 'the_name_of_my_import', kSig_i_i);
      builder.addFunction('main', kSig_i_i)
          .addBody([kExprGetLocal, 0, kExprCallFunction, imp])
          .exportAs('main');
      print('module');
      return new WebAssembly.Module(builder.toBuffer());
    })();

    gc();
    for (var i = 0; i < 10; i++) {
      print('  instance ' + i);
      var instance =
          new WebAssembly.Instance(module, {'mod': {the_name_of_my_import: f}});
      var g = instance.exports.main;
      assertEquals('function', typeof g);
      for (var j = 0; j < 10; j++) {
        assertEquals(f(j), g(j));
      }
    }
  }

  for (var i = 0; i < 3; i++) {
    run(x => (x + 19));
    run(x => (x - 18));
  }
})();

(function testImportThrowsOnToNumber() {
  print(arguments.callee.name);
  const builder = new WasmModuleBuilder();
  const imp_idx = builder.addImport('mod', 'func', kSig_i_v);
  builder.addFunction('main', kSig_i_v)
      .addBody([kExprCallFunction, imp_idx])
      .exportFunc();
  var num_callback_calls = 0;
  const callback = () => {
    ++num_callback_calls;
    return Symbol()
  };
  var instance = builder.instantiate({mod: {func: callback}});
  // Test that this does not mess up internal state by executing it three times.
  for (var i = 0; i < 3; ++i) {
    var interpreted_before = %WasmNumInterpretedCalls(instance);
    assertThrows(
        () => instance.exports.main(), TypeError,
        'Cannot convert a Symbol value to a number');
    assertEquals(interpreted_before + 1, %WasmNumInterpretedCalls(instance));
    assertEquals(i + 1, num_callback_calls);
  }
})();

(function testCallWithMoreReturnsThenParams() {
  print(arguments.callee.name);
  const builder1 = new WasmModuleBuilder();
  builder1.addFunction('exp', kSig_l_v)
      .addBody([kExprI64Const, 23])
      .exportFunc();
  const exp = builder1.instantiate().exports.exp;
  const builder2 = new WasmModuleBuilder();
  const imp_idx = builder2.addImport('imp', 'func', kSig_l_v);
  builder2.addFunction('main', kSig_i_v)
      .addBody([kExprCallFunction, imp_idx, kExprI32ConvertI64])
      .exportFunc();
  const instance = builder2.instantiate({imp: {func: exp}});
  assertEquals(23, instance.exports.main());
})();

(function testTableCall() {
  print(arguments.callee.name);
  const builder1 = new WasmModuleBuilder();
  builder1.addFunction('func', kSig_v_v).addBody([]).exportFunc();
  const instance1 = builder1.instantiate();
  const table = new WebAssembly.Table({element: 'anyfunc', initial: 2});

  const builder2 = new WasmModuleBuilder()
  builder2.addImportedTable('m', 'table');
  const sig = builder2.addType(kSig_v_v);
  builder2.addFunction('call_func', kSig_v_v)
      .addBody([kExprI32Const, 0, kExprCallIndirect, sig, kTableZero])
      .exportFunc();
  const instance2 = builder2.instantiate({m: {table: table}});
  table.set(0, instance1.exports.func);
  instance2.exports.call_func();
})();

(function testTableCall2() {
  // See crbug.com/787910.
  print(arguments.callee.name);
  const builder1 = new WasmModuleBuilder();
  builder1.addFunction('exp', kSig_i_i)
      .addBody([kExprI32Const, 0])
      .exportFunc();
  const instance1 = builder1.instantiate();
  const builder2 = new WasmModuleBuilder();
  const sig1 = builder2.addType(kSig_i_v);
  const sig2 = builder2.addType(kSig_i_i);
  builder2.addFunction('call2', kSig_i_v)
      .addBody([
        kExprI32Const, 0, kExprI32Const, 0, kExprCallIndirect, sig2, kTableZero
      ])
      .exportAs('call2');
  builder2.addImportedTable('imp', 'table');
  const tab = new WebAssembly.Table({
    element: 'anyfunc',
    initial: 3,
  });
  const instance2 = builder2.instantiate({imp: {table: tab}});
  tab.set(0, instance1.exports.exp);
  instance2.exports.call2();
})();

(function testTableCall3() {
  // See crbug.com/814562.
  print(arguments.callee.name);
  const builder0 = new WasmModuleBuilder();
  const sig_index = builder0.addType(kSig_i_v);
  builder0.addFunction('main', kSig_i_i)
      .addBody([
        kExprGetLocal, 0,  // --
        kExprCallIndirect, sig_index, kTableZero
      ])  // --
      .exportAs('main');
  builder0.setFunctionTableBounds(3, 3);
  builder0.addExportOfKind('table', kExternalTable);
  const module0 = new WebAssembly.Module(builder0.toBuffer());
  const instance0 = new WebAssembly.Instance(module0);

  const builder1 = new WasmModuleBuilder();
  builder1.addFunction('main', kSig_i_v).addBody([kExprUnreachable]);
  builder1.addImportedTable('z', 'table');
  builder1.addFunctionTableInit(0, false, [0], true);
  const module1 = new WebAssembly.Module(builder1.toBuffer());
  const instance1 =
      new WebAssembly.Instance(module1, {z: {table: instance0.exports.table}});
  assertThrows(
      () => instance0.exports.main(0), WebAssembly.RuntimeError, 'unreachable');
})();