2362N/A * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * WARNING: The contents of this source file are not part of any 0N/A * supported API. Code that depends on them does so at its own risk: 0N/A * they are subject to change or removal without notice. 0N/A * Select the type of the expression 0N/A * Check a "not" expression. 0N/A * cvars is modified so that 0N/A * cvar.vsTrue indicates variables with a known value if 0N/A * the expression is true. 0N/A * cvars.vsFalse indicates variables with a known value if 0N/A * the expression is false 0N/A * For "not" expressions, we look at the inside expression, and then 0N/A * swap true and false. 0N/A // swap true and false 0N/A // Check if the expression can be optimized 0N/A // Can't negate real comparisons 0N/A // Negate comparison 0N/A * Instead of relying on the default code generation which uses 0N/A * conditional branching, generate a simpler stream using XOR.