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-rw-r--r--js/src/jit-test/tests/basic/bug594205.js16
1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug594205.js b/js/src/jit-test/tests/basic/bug594205.js
new file mode 100644
index 000000000..beaeaa164
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug594205.js
@@ -0,0 +1,16 @@
+var re = /a(b)c/;
+
+for (var i = 0; i < 10; i++) {
+ // These two are of a form where we can convert exec() to test().
+ if (!re.exec("abc")) print("huh?");
+ re.exec("abc");
+}
+
+RegExp.prototype.test = 1;
+
+for (var i = 0; i < 10; i++) {
+ // These two are the same form, but we've replaced test(), so we must
+ // not convert.
+ if (!re.exec("abc")) print("huh?"); // don't crash/assert
+ re.exec("abc"); // don't crash/assert
+}