v8/test/mjsunit/asm/int16array-outofbounds.js

// Copyright 2014 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.

function Module(stdlib, foreign, heap) {
  "use asm";
  var MEM16 = new stdlib.Int16Array(heap);
  function load(i) {
    i = i|0;
    i = MEM16[i >> 1] | 0;
    return i | 0;
  }
  function loadm1() {
    var i = -1 << 1;
    return MEM16[i >> 1] | 0;
    return 0;
  }
  function store(i, v) {
    i = i | 0;
    v = v | 0;
    MEM16[i >> 1] = v;
  }
  function storem1(v) {
    v = v | 0;
    var i = -1 << 1;
    MEM16[i >> 1] = v;
  }
  return {load: load, loadm1: loadm1, store: store, storem1: storem1};
}

var m = Module(this, {}, new ArrayBuffer(2));

m.store(-1000, 4);
assertEquals(0, m.load(-1000));
assertEquals(0, m.loadm1());
m.storem1(1);
assertEquals(0, m.loadm1());
m.store(0, 32767);
for (var i = 1; i < 64; ++i) {
  m.store(i * 2 * 32 * 1024, i);
}
assertEquals(32767, m.load(0));
for (var i = 1; i < 64; ++i) {
  assertEquals(0, m.load(i * 2 * 32 * 1024));
}