1 /*
 2  * Copyright (c) 2025, 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 any
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24  */
25 package hat.dialect;
26 
27 import jdk.incubator.code.CopyContext;
28 import jdk.incubator.code.Op;
29 import jdk.incubator.code.OpTransformer;
30 import jdk.incubator.code.TypeElement;
31 import jdk.incubator.code.Value;
32 
33 import java.util.List;
34 import java.util.Map;
35 
36 public class HatVSelectLoadOp extends HatVectorViewOp {
37 
38     private final TypeElement elementType;
39     private final int lane;
40 
41     public HatVSelectLoadOp(String varName, TypeElement typeElement, int lane, List<Value> operands) {
42         super(varName, operands);
43         this.elementType = typeElement;
44         this.lane = lane;
45     }
46 
47     public HatVSelectLoadOp(HatVSelectLoadOp that, CopyContext cc) {
48         super(that, cc);
49         this.elementType = that.elementType;
50         this.lane = that.lane;
51     }
52 
53     @Override
54     public Op transform(CopyContext copyContext, OpTransformer opTransformer) {
55         return new HatVSelectLoadOp(this, copyContext);
56     }
57 
58     @Override
59     public TypeElement resultType() {
60         return elementType;
61     }
62 
63     @Override
64     public Map<String, Object> externalize() {
65         return Map.of("hat.dialect.vselect." + lane, elementType);
66     }
67 
68     public String mapLane() {
69         return switch (lane) {
70             case 0 -> "x";
71             case 1 -> "y";
72             case 2 -> "z";
73             case 3 -> "w";
74             default -> throw new InternalError("Invalid lane: " + lane);
75         };
76     }
77 }