Backed out changeset d5aa96fed845 (bug 1649234) for causing SM bustages in bug-1649234-2.js CLOSED TREE

js/src/jit-test/tests/basic/bug-1649234-1.js

@@ -1,8 +0,0 @@
-// |jit-test| exitstatus: 6;
-
-timeout(0.1, function() { return false; });
-Atomics.add(new Int32Array(1), 0, {
-  valueOf() {
-    while (1);
-  }
-});

js/src/jit-test/tests/basic/bug-1649234-2.js

@@ -1,4 +0,0 @@
-// |jit-test| exitstatus: 6;
-
-setInterruptCallback(() => false);
-0n == {valueOf() { interruptIf(true); }};

js/src/jit-test/tests/basic/bug-1649234-3.js

@@ -1,14 +0,0 @@
-// |jit-test| exitstatus: 3;
-
-let debuggerRealm = newGlobal({newCompartment: true});
-debuggerRealm.debuggee = this;
-debuggerRealm.eval(`
-  let dbg = new Debugger(debuggee);
-  dbg.onDebuggerStatement = (frame) => null;  // terminate the debuggee
-`);
-
-Atomics.add(new Int32Array(1), 0, {
-  valueOf() {
-    debugger;
-  }
-});

js/src/vm/JSContext.cpp

@@ -865,6 +865,11 @@ mozilla::GenericErrorResult<OOM> JSContext::alreadyReportedOOM() {
 }
 
 mozilla::GenericErrorResult<JS::Error> JSContext::alreadyReportedError() {
+#ifdef DEBUG
+  if (!isHelperThreadContext()) {
+    MOZ_ASSERT(isExceptionPending());
+  }
+#endif
   return mozilla::Err(JS::Error());
 }