The Tor Browser: js/src/jit-test/tests/basic/testDenseToSlowArray.js@6474c204b198 (annotated)

js/src/jit-test/tests/basic/testDenseToSlowArray.js@6474c204b198 (annotated)

js/src/jit-test/tests/basic/testDenseToSlowArray.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 // test dense -> slow array transitions during the recording and on trace
 // for various array functions and property accessors
 function test_set_elem() {
     function f() {
         var bag = [];
         for (var i = 0; i != 100; ++i) {
             var a = [0];
             a[100*100] = i;
             bag.push(a);
         }
         for (var i = 0; i != 100; ++i) {
             var a = [0];
             a[200 + i] = i;
             bag.push(a);
         }
         return bag;
     }
     var bag = f();
     for (var i = 0; i != 100; ++i) {
         var a = bag[i];
         assertEq(a.length, 100 * 100 + 1);
         assertEq(a[100*100], i);
         assertEq(a[0], 0);
         assertEq(1 + i in a, false);
     }
     for (var i = 0; i != 100; ++i) {
         var a = bag[100 + i];
         assertEq(a.length, 200 + i + 1);
         assertEq(a[200 + i], i);
         assertEq(a[0], 0);
         assertEq(1 + i in a, false);
     }
 }
 function test_reverse() {
     function prepare_arays() {
         var bag = [];
         var base_index = 245;
         for (var i = 0; i != 50; ++i) {
             var a = [1, 2, 3, 4, 5];
             a.length = i + base_index;
             bag.push(a);
         }
         return bag;
     }
     function test(bag) {
         for (var i = 0; i != bag.length; ++i) {
             var a = bag[i];
             a.reverse();
             a[0] = 1;
         }
     }
     var bag = prepare_arays();
     test(bag);
     for (var i = 0; i != bag.length; ++i) {
         var a = bag[i];
         assertEq(a[0], 1);
         for (var j = 1; j <= 5; ++j) {
             assertEq(a[a.length - j], j);
         }
         for (var j = 1; j < a.length - 5; ++j) {
             assertEq(j in a, false);
         }
     }
 }
 function test_push() {
     function prepare_arays() {
         var bag = [];
         var base_index = 245;
         for (var i = 0; i != 50; ++i) {
             var a = [0];
             a.length = i + base_index;
             bag.push(a);
         }
         return bag;
     }
     function test(bag) {
         for (var i = 0; i != bag.length; ++i) {
             var a = bag[i];
             a.push(2);
             a[0] = 1;
         }
     }
     var bag = prepare_arays();
     test(bag);
     for (var i = 0; i != bag.length; ++i) {
         var a = bag[i];
         assertEq(a[0], 1);
         assertEq(a[a.length - 1], 2);
         for (var j = 1; j < a.length - 1; ++j) {
             assertEq(j in a, false);
         }
     }
 }
 function test_unshift() {
     function prepare_arays() {
         var bag = [];
         var base_index = 245;
         for (var i = 0; i != 50; ++i) {
             var a = [0];
             a.length = i + base_index;
             bag.push(a);
         }
         return bag;
     }
     function test(bag) {
         for (var i = 0; i != bag.length; ++i) {
             var a = bag[i];
             a.unshift(1);
             a[2] = 2;
         }
     }
     var bag = prepare_arays();
     test(bag);
     for (var i = 0; i != bag.length; ++i) {
         var a = bag[i];
         assertEq(a[0], 1);
         assertEq(a[1], 0);
         assertEq(a[2], 2);
         for (var j = 3; j < a.length; ++j) {
             assertEq(j in a, false);
         }
     }
 }
 function test_splice() {
     function prepare_arays() {
         var bag = [];
         var base_index = 245;
         for (var i = 0; i != 50; ++i) {
             var a = [1, 2];
             a.length = i + base_index;
             bag.push(a);
         }
         return bag;
     }
     function test(bag) {
         for (var i = 0; i != bag.length; ++i) {
             var a = bag[i];
             a.splice(1, 0, "a", "b", "c");
             a[2] = 100;
         }
     }
     var bag = prepare_arays();
     test(bag);
     for (var i = 0; i != bag.length; ++i) {
         var a = bag[i];
         assertEq(a[0], 1);
         assertEq(a[1], "a");
         assertEq(a[2], 100);
         assertEq(a[3], "c");
         assertEq(a[4], 2);
         for (var j = 5; j < a.length; ++j) {
             assertEq(j in a, false);
         }
     }
 }
 test_set_elem();
 test_reverse();
 test_push();
 test_unshift();
 test_splice();