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-rw-r--r--js/src/jit-test/tests/basic/bug757199.js23
1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug757199.js b/js/src/jit-test/tests/basic/bug757199.js
new file mode 100644
index 0000000000..73adacd8e2
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug757199.js
@@ -0,0 +1,23 @@
+function ctor()
+{
+ this.a = 1;
+ this.b = 2;
+}
+function f2(o)
+{
+ o.c = 12;
+}
+function f()
+{
+ var x = new ctor();
+ verifyprebarriers();
+ f2(x);
+ verifyprebarriers();
+}
+f();
+f();
+var o = {};
+for (var i=0; i<1000; i++)
+ o['a'+i] = 3;
+f();
+f();