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 24 25 package org.graalvm.compiler.lir.amd64; 26 27 import org.graalvm.compiler.lir.Variable; 28 import org.graalvm.compiler.lir.gen.ArithmeticLIRGeneratorTool; 29 30 import jdk.vm.ci.amd64.AMD64Kind; 31 import jdk.vm.ci.meta.Value; 32 33 /** 34 * This interface can be used to generate AMD64 LIR for arithmetic operations. 35 */ 36 public interface AMD64ArithmeticLIRGeneratorTool extends ArithmeticLIRGeneratorTool { 37 38 Value emitCountLeadingZeros(Value value); 39 40 Value emitCountTrailingZeros(Value value); 41 42 Value emitLogicalAndNot(Value value1, Value value2); 43 44 Value emitLowestSetIsolatedBit(Value value); 45 46 Value emitGetMaskUpToLowestSetBit(Value value); 47 48 Value emitResetLowestSetBit(Value value); 49 50 enum RoundingMode { 51 NEAREST(0), 52 DOWN(1), 53 UP(2), 54 TRUNCATE(3); 55 56 public final int encoding; 57 58 RoundingMode(int encoding) { 59 this.encoding = encoding; 60 } 61 } 62 63 Value emitRound(Value value, RoundingMode mode); 64 65 void emitCompareOp(AMD64Kind cmpKind, Variable left, Value right); 66 }