// Copyright 2024 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 --turbolev --turbofan // Flags: --no-always-turbofan var a = "a".repeat(%StringMaxLength()); function foo(a, b) { try { return a + "0123"; } catch (e) { return e; } } %PrepareFunctionForOptimization(foo); assertEquals("a0123", foo("a")); assertEquals("a0123", foo("a")); %OptimizeFunctionOnNextCall(foo); assertEquals("a0123", foo("a")); assertOptimized(foo); // Triggering a thow by creating a too-large string. This will deopt the // function since this is the 1st time that it throws. assertInstanceof(foo(a), RangeError); assertUnoptimized(foo); // Reoptimizing the function. This time, it should deopt after throwing. %OptimizeFunctionOnNextCall(foo); assertEquals("a0123", foo("a")); assertInstanceof(foo(a), RangeError); assertOptimized(foo);