}
ASSERT(join != NULL);
- join->SetJoinId(ast_id);
- set_current_block(join);
- if (!ast_context()->IsEffect()) ast_context()->ReturnValue(Pop());
+ if (join->HasPredecessor()) {
+ join->SetJoinId(ast_id);
+ set_current_block(join);
+ if (!ast_context()->IsEffect()) ast_context()->ReturnValue(Pop());
+ } else {
+ set_current_block(NULL);
+ }
}
--- /dev/null
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+function t1() { return this instanceof t1; }
+function t2() { return this instanceof t2; }
+
+var o1 = new (function() { })();
+Object.defineProperty(o1, "t", {get:function() { return this instanceof o1.constructor; }});
+var o2 = new (function() { })();
+Object.defineProperty(o2, "t", {get:function() { return this instanceof o1.constructor; }});
+var o3 = new (function() { })();
+o3.t = true;
+
+function f(o) {
+ return 1 + (o.t ? 1 : 2);
+}
+
+f(o1);
+f(o1);
+f(o2);
+%OptimizeFunctionOnNextCall(f);
+f(o3);