1 cananian 1.1.2.7 // InstrBuilder.java, created Tue Nov 2 2:07:04 1999 by andyb
2 andyb 1.1.2.1 // Copyright (C) 1999 Andrew Berkheimer <andyb@mit.edu>
3 andyb 1.1.2.1 // Licensed under the terms of the GNU GPL; see COPYING for details.
4 andyb 1.1.2.1 package harpoon.Backend.Sparc;
5 andyb 1.1.2.1
6 andyb 1.1.2.1 import harpoon.IR.Assem.Instr;
7 andyb 1.1.2.1 import harpoon.IR.Assem.InstrLABEL;
8 andyb 1.1.2.3 import harpoon.IR.Assem.InstrMEM;
9 andyb 1.1.2.3 import harpoon.Temp.Label;
10 andyb 1.1.2.1 import harpoon.Temp.Temp;
11 andyb 1.1.2.1
12 andyb 1.1.2.4 import java.util.Arrays;
13 andyb 1.1.2.1 import java.util.List;
14 andyb 1.1.2.1
15 andyb 1.1.2.1 /**
16 andyb 1.1.2.1 * <code>Sparc.InstrBuilder</code> is another implementation of
17 andyb 1.1.2.1 * <code>Generic.InstrBuilder</code> - for the Sparc architecture.
18 andyb 1.1.2.1 *
19 andyb 1.1.2.1 * @author Andrew Berkheimer <andyb@mit.edu>
20 cananian 1.2 * @version $Id: InstrBuilder.java,v 1.2 2002/02/25 21:02:37 cananian Exp $
21 andyb 1.1.2.1 */
22 andyb 1.1.2.1 public class InstrBuilder extends harpoon.Backend.Generic.InstrBuilder {
23 andyb 1.1.2.2 private final RegFileInfo regFileInfo;
24 andyb 1.1.2.2 private final TempBuilder tempBuilder;
25 andyb 1.1.2.1
26 andyb 1.1.2.1 InstrBuilder(RegFileInfo regFileInfo, TempBuilder tempBuilder) {
27 andyb 1.1.2.3 super();
28 andyb 1.1.2.3 this.regFileInfo = regFileInfo;
29 andyb 1.1.2.3 this.tempBuilder = tempBuilder;
30 andyb 1.1.2.1 }
31 andyb 1.1.2.1
32 andyb 1.1.2.1 public List makeLoad(Temp r, int offset, Instr template) {
33 andyb 1.1.2.3 if (tempBuilder.isTwoWord(r)) {
34 andyb 1.1.2.6 InstrMEM load =
35 andyb 1.1.2.6 new InstrMEM(template.getFactory(), template,
36 andyb 1.1.2.6 "ldd [`s0 + " +(-4*(offset+1)) + "], `d0h",
37 andyb 1.1.2.6 new Temp[] { r },
38 andyb 1.1.2.6 new Temp[] { regFileInfo.SP() });
39 andyb 1.1.2.6 return Arrays.asList(new InstrMEM[] { load, load });
40 andyb 1.1.2.3 } else {
41 andyb 1.1.2.4 InstrMEM load =
42 andyb 1.1.2.4 new InstrMEM(template.getFactory(), template,
43 andyb 1.1.2.4 "ld [`s0 + " + (-4*offset) + "], `d0",
44 andyb 1.1.2.4 new Temp[] { r },
45 andyb 1.1.2.4 new Temp[] { regFileInfo.SP() });
46 andyb 1.1.2.4 return Arrays.asList(new InstrMEM[] { load });
47 andyb 1.1.2.3 }
48 andyb 1.1.2.1 }
49 andyb 1.1.2.1
50 andyb 1.1.2.1 public List makeStore(Temp r, int offset, Instr template) {
51 andyb 1.1.2.3 if (tempBuilder.isTwoWord(r)) {
52 andyb 1.1.2.6 InstrMEM store =
53 andyb 1.1.2.4 new InstrMEM(template.getFactory(), template,
54 andyb 1.1.2.6 "std `s0h, [`s1 + " + (-4*(offset+1)) + "]",
55 andyb 1.1.2.6 null, new Temp[] { r, regFileInfo.SP() });
56 andyb 1.1.2.6 return Arrays.asList(new InstrMEM[] { store });
57 andyb 1.1.2.3 } else {
58 andyb 1.1.2.4 InstrMEM store =
59 andyb 1.1.2.4 new InstrMEM(template.getFactory(), template,
60 andyb 1.1.2.4 "st `s0, [`s1 + " + (-4*offset) + "]",
61 andyb 1.1.2.6 null, new Temp[] { r, regFileInfo.SP() });
62 andyb 1.1.2.4 return Arrays.asList(new InstrMEM[] { store });
63 andyb 1.1.2.3 }
64 andyb 1.1.2.3 }
65 andyb 1.1.2.1
66 andyb 1.1.2.1 public InstrLABEL makeLabel(Instr template) {
67 andyb 1.1.2.3 Label l = new Label();
68 andyb 1.1.2.3 InstrLABEL il = new InstrLABEL(template.getFactory(), template,
69 andyb 1.1.2.3 l.toString() + ":", l);
70 andyb 1.1.2.3 return il;
71 andyb 1.1.2.1 }
72 cananian 1.2 }