// Copyright 2019 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 const obj = { a: 42 }; function boom() { throw "boom"; } // Ensure that we optimize the monomorphic case. (function() { function bar(x) { try { boom(); ++i; } catch(_) { %TurbofanStaticAssert(x.a == 42); return x.a; } } function foo() { return bar(obj); } %PrepareFunctionForOptimization(foo); %PrepareFunctionForOptimization(bar); foo(); foo(); %OptimizeFunctionForTopTier(foo); foo(); })(); // And the megamorphic case. (function() { function bar(x) { try { boom(); ++i; } catch(_) { %TurbofanStaticAssert(x.a == 42); return x.a; } } function foo() { return bar(obj); } %PrepareFunctionForOptimization(foo); %PrepareFunctionForOptimization(bar); bar({b: 42}); bar({c: 42}); bar({d: 42}); bar({e: 42}); bar({f: 42}); foo(); foo(); %OptimizeFunctionForTopTier(foo); foo(); })();