// Copyright 2017 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: --expose-gc --allow-natives-syntax var notCallable; function inferReceiverMapsInDeadCode() { var obj = { func() {} }; gc(); function wrappedCode() { try { code(); } catch (e) {} } function code() { obj.a; try { Object.defineProperty(obj, "func", { get() {} }); } catch (neverCaught) {} for (var i = 0; i < 1; i++) { try { notCallable(arguments[i]); } catch (alwaysCaught) {} } } wrappedCode(); try { %OptimizeFunctionOnNextCall(wrappedCode); wrappedCode(); } catch (e) {} } inferReceiverMapsInDeadCode(); inferReceiverMapsInDeadCode(); inferReceiverMapsInDeadCode();