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-rw-r--r--js/src/jit-test/tests/basic/bug1078871.js44
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug1078871.js b/js/src/jit-test/tests/basic/bug1078871.js
new file mode 100644
index 000000000..b055fa365
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug1078871.js
@@ -0,0 +1,44 @@
+
+// Robert Jenkins' 32 bit integer hash function
+var seed = 100;
+Math.random = function() {
+ seed = (seed + 0x7ed55d16) + (seed<<12);
+ seed = (seed ^ 0xc761c23c) ^ (seed>>19);
+ seed = (seed + 0x165667b1) + (seed<<5);
+ seed = (seed + 0xd3a2646c) ^ (seed<<9);
+ seed = (seed + 0xfd7046c5) + (seed<<3);
+ seed = (seed ^ 0xb55a4f09) ^ (seed>>16);
+ seed = Math.abs(seed | 0);
+ return seed / 0xffffffff * 2;
+}
+
+function tangle(n, m) {
+ function rand(n) {
+ return Math.floor(Math.random() * n);
+ }
+
+ var arr = [];
+ for (var i = 0; i < n; i++)
+ arr[i] = String.fromCharCode(65 + rand(26));
+ for (var i = 0; i < m; i++) {
+ var j = rand(n);
+ switch (rand(2)) {
+ case 0: {
+ var s = arr[rand(n)];
+ var b = rand(s.length);
+ var e = b + rand(s.length - b);
+ if (e - b > 1)
+ arr[j] = s.substring(b, e);
+ }
+ break;
+ case 1: {
+ arr[j] = arr[rand(n)] + arr[rand(n)];
+ }
+ }
+ uneval(arr[j]);
+ }
+
+ return arr;
+}
+
+tangle(10, 500);