1 /* 2 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.lir.amd64; 24 25 import org.graalvm.compiler.lir.Variable; 26 import org.graalvm.compiler.lir.gen.ArithmeticLIRGeneratorTool; 27 28 import jdk.vm.ci.amd64.AMD64Kind; 29 import jdk.vm.ci.meta.Value; 30 31 /** 32 * This interface can be used to generate AMD64 LIR for arithmetic operations. 33 */ 34 public interface AMD64ArithmeticLIRGeneratorTool extends ArithmeticLIRGeneratorTool { 35 36 Value emitCountLeadingZeros(Value value); 37 38 Value emitCountTrailingZeros(Value value); 39 40 enum RoundingMode { 41 NEAREST(0), 42 DOWN(1), 43 UP(2), 44 TRUNCATE(3); 45 46 public final int encoding; 47 48 RoundingMode(int encoding) { 49 this.encoding = encoding; 50 } 51 } 52 53 Value emitRound(Value value, RoundingMode mode); 54 55 void emitCompareOp(AMD64Kind cmpKind, Variable left, Value right); 56 }