tests/stress/materialize-past-butterfly-allocation.js

   1 function bar() {
   2     return {f:42};
   3 }
   4
   5 noInline(bar);
   6
   7 function foo0(b) {
   8     var o = {f:42};
   9     if (b) {
  10         var p = bar();
  11         p.g = o;
  12         return p;
  13     }
  14 }
  15
  16 function foo1(b) {
  17     var o = {f:42};
  18     if (b) {
  19         var p = bar();
  20         p.f1 = 1;
  21         p.g = o;
  22         return p;
  23     }
  24 }
  25
  26 function foo2(b) {
  27     var o = {f:42};
  28     if (b) {
  29         var p = bar();
  30         p.f1 = 1;
  31         p.f2 = 2;
  32         p.g = o;
  33         return p;
  34     }
  35 }
  36
  37 function foo3(b) {
  38     var o = {f:42};
  39     if (b) {
  40         var p = bar();
  41         p.f1 = 1;
  42         p.f2 = 2;
  43         p.f3 = 3;
  44         p.g = o;
  45         return p;
  46     }
  47 }
  48
  49 function foo4(b) {
  50     var o = {f:42};
  51     if (b) {
  52         var p = bar();
  53         p.f1 = 1;
  54         p.f2 = 2;
  55         p.f3 = 3;
  56         p.f4 = 4;
  57         p.g = o;
  58         return p;
  59     }
  60 }
  61
  62 noInline(foo0);
  63 noInline(foo1);
  64 noInline(foo2);
  65 noInline(foo3);
  66 noInline(foo4);
  67
  68 var array = new Array(1000);
  69 for (var i = 0; i < 4000000; ++i) {
  70     var o = foo0(true);
  71     array[i % array.length] = o;
  72 }
  73 for (var i = 0; i < 4000000; ++i) {
  74     var o = foo1(true);
  75     array[i % array.length] = o;
  76 }
  77 for (var i = 0; i < 4000000; ++i) {
  78     var o = foo2(true);
  79     array[i % array.length] = o;
  80 }
  81 for (var i = 0; i < 4000000; ++i) {
  82     var o = foo3(true);
  83     array[i % array.length] = o;
  84 }
  85 for (var i = 0; i < 4000000; ++i) {
  86     var o = foo4(true);
  87     array[i % array.length] = o;
  88 }
  89