--- old/test/nashorn/script/basic/es6/JDK-8168373.js 2020-04-15 19:13:12.000000000 +0530 +++ /dev/null 2020-04-15 19:13:12.000000000 +0530 @@ -1,44 +0,0 @@ -/* - * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -/** - * JDK-8168373: don't emit conversions for symbols outside their lexical scope - * - * @test - * @run - * @option --language=es6 - */ - -function p() { return false } // "predicate" -function r(x) { return x } // "read" - -(function() { - try { // Try creates control flow edges from assignments into catch blocks. - // Lexically scoped, never read int variable (undefined at catch block) but still with a cf edge into catch block. - // Since it's never read, it's not written either (Nashorn optimizes some dead writes). - let x = 0; - if (p()) { throw {}; } // We need `p()` so this block doesn't get optimized away, for possibility of a `throw` - x = 0.0; // change the type of x to double - r(x); // read x otherwise it's optimized away - } catch (e) {} // under the bug, "throw" will try to widen unwritten int x to double for here and cause a verifier error -})()