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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/jit-test/tests/basic/testChangingObjectWithLength.js')
-rw-r--r--js/src/jit-test/tests/basic/testChangingObjectWithLength.js33
1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testChangingObjectWithLength.js b/js/src/jit-test/tests/basic/testChangingObjectWithLength.js
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+++ b/js/src/jit-test/tests/basic/testChangingObjectWithLength.js
@@ -0,0 +1,33 @@
+function testChangingObjectWithLength()
+{
+ var obj = { length: 10 };
+ var dense = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+ var slow = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; slow.slow = 5;
+
+ /*
+ * The elements of objs constitute a De Bruijn sequence repeated 4x to trace
+ * and run native code for every object and transition.
+ */
+ var objs = [obj, obj, obj, obj,
+ obj, obj, obj, obj,
+ dense, dense, dense, dense,
+ obj, obj, obj, obj,
+ slow, slow, slow, slow,
+ dense, dense, dense, dense,
+ dense, dense, dense, dense,
+ slow, slow, slow, slow,
+ slow, slow, slow, slow,
+ obj, obj, obj, obj];
+
+ var counter = 0;
+
+ for (var i = 0, sz = objs.length; i < sz; i++)
+ {
+ var o = objs[i];
+ for (var j = 0; j < o.length; j++)
+ counter++;
+ }
+
+ return counter;
+}
+assertEq(testChangingObjectWithLength(), 400);