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-rw-r--r--js/src/jit-test/tests/ion/bug851064.js13
1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug851064.js b/js/src/jit-test/tests/ion/bug851064.js
new file mode 100644
index 000000000..e7af13aa2
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug851064.js
@@ -0,0 +1,13 @@
+var base = "azertyuiopqsdfghjklmwxcvbn";
+function createRopedString() {
+ var test = "";
+ for (var i=0; i<2; i++) {
+ test += base;
+ }
+ return test;
+}
+
+assertEq(createRopedString().substr(0,10), base.substr(0,10));
+assertEq(createRopedString().substr(0,26), base.substr(0,26));
+assertEq(createRopedString().substr(26,10), base.substr(0,10));
+assertEq(createRopedString().substr(24,10), base.substr(24,2) + base.substr(0,8));