1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/profiler/bug1427774.js b/js/src/jit-test/tests/profiler/bug1427774.js
new file mode 100644
index 0000000000..53a3103f3b
--- /dev/null
+++ b/js/src/jit-test/tests/profiler/bug1427774.js
@@ -0,0 +1,29 @@
+setJitCompilerOption("baseline.warmup.trigger", 0);
+enableGeckoProfiling();
+try {
+    enableSingleStepProfiling();
+} catch(e) {
+    quit();
+}
+function removeAdd(dbg, g) {
+    dbg.removeDebuggee(g);
+}
+function newGlobalDebuggerPair(toggleSeq) {
+    var g = newGlobal({newCompartment: true});
+    var dbg = new Debugger;
+    dbg.addDebuggee(g);
+    g.eval("" + function f() {return 100});
+    return [g, dbg];
+}
+function testTrap(toggleSeq) {
+    var [g, dbg] = newGlobalDebuggerPair(toggleSeq);
+    dbg.onEnterFrame = function(f) {
+        f.script.setBreakpoint(Symbol.iterator == (this) ^ (this), {
+            hit: function() {
+                toggleSeq(dbg, g);
+            }
+        });
+    };
+    assertEq(g.f(), 100);
+}
+testTrap(removeAdd);