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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
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /js/src/jit-test/tests/basic/bug1013922.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/jit-test/tests/basic/bug1013922.js')
-rw-r--r--js/src/jit-test/tests/basic/bug1013922.js67
1 files changed, 67 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug1013922.js b/js/src/jit-test/tests/basic/bug1013922.js
new file mode 100644
index 000000000..febe32ea5
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug1013922.js
@@ -0,0 +1,67 @@
+String.prototype.repeat = function(num) {
+ return new Array(num + 1).join(this);
+}
+
+function set_to_length(length, frag_size)
+{
+ var fragment = "'" + "x".repeat(frag_size) + "' + ";
+ var frags = Math.floor((length - 1)/frag_size);
+ var code = "var x = " + fragment.repeat(frags) + "'" +
+ "x".repeat(length - frags * frag_size) + "';";
+
+ try {
+ eval(code);
+ }
+ catch(err) {
+ if (err.message && err.message == "Out of memory")
+ return -1;
+ if (err == "out of memory")
+ return -1;
+ throw(err); /* Oops, broke something. */
+ }
+
+ return code.length;
+}
+
+var first_fail;
+var first_pass;
+var frag_size;
+var pass_code_length;
+
+function search_up()
+{
+ if (set_to_length(first_fail, frag_size) < 0) {
+ setTimeout(binary_search, 0);
+ return;
+ }
+
+ first_fail *= 2;
+}
+
+function binary_search()
+{
+ if (first_fail - first_pass > 1) {
+ var length = (first_pass + first_fail) / 2;
+ var code_len = set_to_length(length, frag_size);
+ if (code_len > 0) {
+ first_pass = length;
+ pass_code_length = code_len;
+ } else
+ first_fail = length;
+ setTimeout(binary_search, 0);
+ return;
+ }
+}
+
+function run_find_limit()
+{
+ frag_size = 64;
+ first_fail = 65536; /* A guess */
+ first_pass = 0;
+ pass_code_length = 0;
+
+ for (var i=0; i<5; i++)
+ search_up(0);
+}
+
+run_find_limit();