1 /* 2 * Copyright (c) 2017, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have 23 * questions. 24 */ 25 package jdk.incubator.vector; 26 27 import java.util.Arrays; 28 29 abstract class AbstractMask<E> extends Vector.Mask<E> { 30 31 /*package-private*/ 32 abstract boolean[] getBits(); 33 34 // Unary operator 35 36 interface MUnOp { 37 boolean apply(int i, boolean a); 38 } 39 40 abstract AbstractMask<E> uOp(MUnOp f); 41 42 // Binary operator 43 44 interface MBinOp { 45 boolean apply(int i, boolean a, boolean b); 46 } 47 48 abstract AbstractMask<E> bOp(Vector.Mask<E> o, MBinOp f); 49 50 @Override 51 public String toString() { 52 return Arrays.toString(getBits()); 53 } 54 55 @Override 56 public boolean getElement(int i) { 57 return getBits()[i]; 58 } 59 60 @Override 61 public long toLong() { 62 long res = 0; 63 long set = 1; 64 boolean[] bits = getBits(); 65 for (int i = 0; i < species().length(); i++) { 66 res = bits[i] ? res | set : res; 67 set = set << 1; 68 } 69 return res; 70 } 71 72 @Override 73 public void intoArray(boolean[] bits, int i) { 74 System.arraycopy(getBits(), 0, bits, i, species().length()); 75 } 76 77 @Override 78 public boolean[] toArray() { 79 return getBits().clone(); 80 } 81 82 @Override 83 public int trueCount() { 84 int c = 0; 85 for (boolean i : getBits()) { 86 if (i) c++; 87 } 88 return c; 89 } 90 91 @Override 92 public AbstractMask<E> and(Vector.Mask<E> o) { 93 return bOp(o, (i, a, b) -> a && b); 94 } 95 96 @Override 97 public AbstractMask<E> or(Vector.Mask<E> o) { 98 return bOp(o, (i, a, b) -> a || b); 99 } 100 101 @Override 102 public AbstractMask<E> not() { 103 return uOp((i, a) -> !a); 104 } 105 106 /*package-private*/ 107 static boolean anyTrueHelper(boolean[] bits) { 108 for (boolean i : bits) { 109 if (i) return true; 110 } 111 return false; 112 } 113 114 /*package-private*/ 115 static boolean allTrueHelper(boolean[] bits) { 116 for (boolean i : bits) { 117 if (!i) return false; 118 } 119 return true; 120 } 121 }