1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/RematerializedFrame-retval.js b/js/src/jit-test/tests/debug/RematerializedFrame-retval.js
new file mode 100644
index 0000000000..18e7778f27
--- /dev/null
+++ b/js/src/jit-test/tests/debug/RematerializedFrame-retval.js
@@ -0,0 +1,39 @@
+// |jit-test| error: InternalError; --baseline-eager; --ion-eager
+// Make sure that return values we store in RematerializedFrames via resumption
+// values get propagated to the BaselineFrames we build from them.
+//
+// Test case from bug 1285939; there's another in bug 1282518, but this one
+// takes less time to run, when it doesn't crash.
+
+var lfLogBuffer = `
+function testResumptionVal(resumptionVal, turnOffDebugMode) {
+  var g = newGlobal({newCompartment: true});
+  var dbg = new Debugger;
+  setInterruptCallback(function () {
+    dbg.addDebuggee(g);
+    var frame = dbg.getNewestFrame();
+    frame.onStep = function () {
+      frame.onStep = undefined;
+      return resumptionVal;
+    };
+    return true;
+  });
+  try {
+    return g.eval("(" + function f() {
+      invokeInterruptCallback(function (interruptRv) {
+    f({ valueOf: function () { dbg.g(dbg); }});
+  });
+    } + ")();");
+  } finally {  }
+}
+assertEq(testResumptionVal({ return: "not 42" }), "not 42");
+`;
+loadFile(lfLogBuffer);
+function loadFile(lfVarx) {
+    try {
+         let m = parseModule(lfVarx);
+         m.declarationInstantiation();
+         m.evaluation();
+    } catch (lfVare) {}
+}
+