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comparison graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/debug/InstructionPrinter.java @ 2874:d90bf514d647

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Renamed packages.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 08 Jun 2011 08:59:54 +0200
parents graal/com.oracle.max.graal.compiler/src/com/sun/c1x/debug/InstructionPrinter.java@0341b6424579
children f35a9ae24f11
comparison
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2873:810e2d253e00 2874:d90bf514d647
1 /*
2 * Copyright (c) 2009, 2011, 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 com.oracle.max.graal.compiler.debug;
24
25 import static com.oracle.max.graal.compiler.debug.InstructionPrinter.InstructionLineColumn.*;
26
27 import com.oracle.max.graal.compiler.ir.*;
28
29 /**
30 * A {@link ValueVisitor} for {@linkplain #printInstruction(Value) printing}
31 * an {@link Instruction} as an expression or statement.
32 *
33 * @author Doug Simon
34 */
35 public class InstructionPrinter {
36
37
38 /**
39 * The columns printed in a tabulated instruction
40 * {@linkplain InstructionPrinter#printInstructionListing(Value) listing}.
41 */
42 public enum InstructionLineColumn {
43 /**
44 * The instruction's bytecode index.
45 */
46 BCI(2, "bci"),
47
48 /**
49 * The instruction's use count.
50 */
51 USE(7, "use"),
52
53 /**
54 * The instruction as a {@linkplain com.oracle.max.graal.compiler.util.Util#valueString(com.oracle.max.graal.compiler.ir.Value) value}.
55 */
56 VALUE(12, "tid"),
57
58 /**
59 * The instruction formatted as an expression or statement.
60 */
61 INSTRUCTION(19, "instr"),
62
63 END(60, "");
64
65 final int position;
66 final String label;
67
68 private InstructionLineColumn(int position, String label) {
69 this.position = position;
70 this.label = label;
71 }
72
73 /**
74 * Prints this column's label to a given stream after padding the stream with '_' characters
75 * until its {@linkplain LogStream#position() position} is equal to this column's position.
76 * @param out the print stream
77 */
78 public void printLabel(LogStream out) {
79 out.fillTo(position + out.indentationLevel(), '_');
80 out.print(label);
81 }
82
83 /**
84 * Prints space characters to a given stream until its {@linkplain LogStream#position() position}
85 * is equal to this column's position.
86 * @param out the print stream
87 */
88 public void advance(LogStream out) {
89 out.fillTo(position + out.indentationLevel(), ' ');
90 }
91 }
92
93 private final LogStream out;
94
95 public InstructionPrinter(LogStream out) {
96 this.out = out;
97 }
98
99 public LogStream out() {
100 return out;
101 }
102
103 /**
104 * Prints a given instruction as an expression or statement.
105 *
106 * @param instruction the instruction to print
107 */
108 public void printInstruction(Value instruction) {
109 instruction.print(out);
110 }
111
112
113 /**
114 * Prints a header for the tabulated data printed by {@link #printInstructionListing(Value)}.
115 */
116 public void printInstructionListingHeader() {
117 BCI.printLabel(out);
118 USE.printLabel(out);
119 VALUE.printLabel(out);
120 INSTRUCTION.printLabel(out);
121 END.printLabel(out);
122 out.println();
123 }
124
125 /**
126 * Prints an instruction listing on one line. The instruction listing is composed of the
127 * columns specified by {@link InstructionLineColumn}.
128 *
129 * @param instruction the instruction to print
130 */
131 public void printInstructionListing(Value instruction) {
132 int indentation = out.indentationLevel();
133 out.fillTo(BCI.position + indentation, ' ').
134 print(0).
135 fillTo(USE.position + indentation, ' ').
136 print("0").
137 fillTo(VALUE.position + indentation, ' ').
138 print(instruction).
139 fillTo(INSTRUCTION.position + indentation, ' ');
140 printInstruction(instruction);
141 String flags = instruction.flagsToString();
142 if (!flags.isEmpty()) {
143 out.print(" [flags: " + flags + "]");
144 }
145 if (instruction instanceof StateSplit) {
146 out.print(" [state: " + ((StateSplit) instruction).stateAfter() + "]");
147 }
148 out.println();
149 }
150 }