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-rw-r--r--js/src/jit-test/tests/baseline/bug857580.js13
1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/baseline/bug857580.js b/js/src/jit-test/tests/baseline/bug857580.js
new file mode 100644
index 000000000..a5efa793a
--- /dev/null
+++ b/js/src/jit-test/tests/baseline/bug857580.js
@@ -0,0 +1,13 @@
+gczeal(2,10);
+var g = newGlobal();
+var dbg = new Debugger(g);
+dbg.onNewScript = function(script) {
+ fscript = script.getChildScripts()[0];
+}
+g.eval("function f(x) { arguments[0] = 3; return x }");
+fscript.setBreakpoint(0, {hit:function(frame) {
+ assertEq(frame.eval('x').return, 1);
+ gc();
+ return {return:42};
+}});
+assertEq(g.f(1), 42);