tests/stress/redundant-array-bounds-checks.js

   1 function foo(a) {
   2     return [a[0], a[1], a[2], a[3], a[4], a[5], a[6], a[7]];
   3 }
   4
   5 noInline(foo);
   6
   7 function arraycmp(a, b) {
   8     if (a.length != b.length)
   9         return false;
  10     for (var i = 0; i < a.length; ++i) {
  11         if (a[i] != b[i])
  12             return false;
  13     }
  14     return true;
  15 }
  16
  17 for (var i = 0; i < 100000; ++i) {
  18     var result = foo([1, 2, 3, 4, 5, 6, 7, 8]);
  19     if (!arraycmp(result, [1, 2, 3, 4, 5, 6, 7, 8]))
  20         throw "Error: bad result (1..8): " + result;
  21 }
  22
  23 var result = foo([1, 2, 3, 4, 5, 6, 7]);
  24 if (!arraycmp(result, [1, 2, 3, 4, 5, 6, 7, void 0]))
  25     throw "Error: bad result (1..7): " + result;
  26 var result = foo([1, 2, 3, 4, 5, 6]);
  27 if (!arraycmp(result, [1, 2, 3, 4, 5, 6, void 0, void 0]))
  28     throw "Error: bad result (1..6): " + result;
  29 var result = foo([1, 2, 3, 4, 5]);
  30 if (!arraycmp(result, [1, 2, 3, 4, 5, void 0, void 0, void 0]))
  31     throw "Error: bad result (1..5): " + result;
  32 var result = foo([1, 2, 3, 4]);
  33 if (!arraycmp(result, [1, 2, 3, 4, void 0, void 0, void 0, void 0]))
  34     throw "Error: bad result (1..4): " + result;
  35 var result = foo([1, 2, 3]);
  36 if (!arraycmp(result, [1, 2, 3, void 0, void 0, void 0, void 0, void 0]))
  37     throw "Error: bad result (1..3): " + result;
  38 var result = foo([1, 2]);
  39 if (!arraycmp(result, [1, 2, void 0, void 0, void 0, void 0, void 0, void 0]))
  40     throw "Error: bad result (1..2): " + result;
  41 var result = foo([1]);
  42 if (!arraycmp(result, [1, void 0, void 0, void 0, void 0, void 0, void 0, void 0]))
  43     throw "Error: bad result (1..1): " + result;
  44 var result = foo([]);
  45 if (!arraycmp(result, [void 0, void 0, void 0, void 0, void 0, void 0, void 0, void 0]))
  46     throw "Error: bad result (1..1): " + result;