Mercurial > hg > truffle
comparison graal/com.oracle.jvmci.asm.sparc/src/com/oracle/jvmci/asm/sparc/SPARCInstructionCounter.java @ 21708:6df25b1418be
moved com.oracle.asm.** to jvmci-util.jar (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 03 Jun 2015 18:06:44 +0200 |
parents | graal/com.oracle.graal.asm.sparc/src/com/oracle/graal/asm/sparc/SPARCInstructionCounter.java@422e60a2f4b9 |
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21707:e0f311284930 | 21708:6df25b1418be |
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1 /* | |
2 * Copyright (c) 2009, 2015, 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.jvmci.asm.sparc; | |
24 | |
25 import java.util.*; | |
26 | |
27 import com.oracle.jvmci.asm.Assembler.*; | |
28 | |
29 public class SPARCInstructionCounter implements InstructionCounter { | |
30 // Use a treemap to keep the order in the output | |
31 private static final TreeMap<String, SPARCInstructionMatch> INSTRUCTION_MATCHER = new TreeMap<>(); | |
32 static { | |
33 // @formatter:off | |
34 INSTRUCTION_MATCHER.put("nop", new SPARCInstructionMatch(0xFFFF_FFFF, 0x0100_0000)); | |
35 INSTRUCTION_MATCHER.put("st", new OP3LowBitsMatcher(0b11, 0x4, 0x5, 0x6, 0x7, 0xe, 0xf)); | |
36 INSTRUCTION_MATCHER.put("ld", new OP3LowBitsMatcher(0b11, 0x0, 0x1, 0x2, 0x3, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd)); | |
37 INSTRUCTION_MATCHER.put("all", new SPARCInstructionMatch(0x0, 0x0)); | |
38 // @formatter:on | |
39 } | |
40 private final SPARCAssembler asm; | |
41 | |
42 public SPARCInstructionCounter(SPARCAssembler asm) { | |
43 super(); | |
44 this.asm = asm; | |
45 } | |
46 | |
47 @Override | |
48 public int[] countInstructions(String[] instructionTypes, int beginPc, int endPc) { | |
49 SPARCInstructionMatch[] matchers = new SPARCInstructionMatch[instructionTypes.length]; | |
50 for (int i = 0; i < instructionTypes.length; i++) { | |
51 String typeName = instructionTypes[i]; | |
52 matchers[i] = INSTRUCTION_MATCHER.get(typeName); | |
53 if (matchers[i] == null) { | |
54 throw new IllegalArgumentException(String.format("Unknown instruction class %s, supported types are: %s", typeName, INSTRUCTION_MATCHER.keySet())); | |
55 } | |
56 } | |
57 return countBetween(matchers, beginPc, endPc); | |
58 } | |
59 | |
60 private int[] countBetween(SPARCInstructionMatch[] matchers, int startPc, int endPc) { | |
61 int[] counts = new int[matchers.length]; | |
62 for (int p = startPc; p < endPc; p += 4) { | |
63 int instr = asm.getInt(p); | |
64 for (int i = 0; i < matchers.length; i++) { | |
65 SPARCInstructionMatch matcher = matchers[i]; | |
66 if (matcher.matches(instr)) { | |
67 counts[i]++; | |
68 } | |
69 } | |
70 } | |
71 return counts; | |
72 } | |
73 | |
74 @Override | |
75 public String[] getSupportedInstructionTypes() { | |
76 return INSTRUCTION_MATCHER.keySet().toArray(new String[0]); | |
77 } | |
78 | |
79 /** | |
80 * Tests the lower 3 bits of the op3 field. | |
81 */ | |
82 private static class OP3LowBitsMatcher extends SPARCInstructionMatch { | |
83 private final int[] op3b03; | |
84 private final int op; | |
85 | |
86 public OP3LowBitsMatcher(int op, int... op3b03) { | |
87 super(0, 0); | |
88 this.op = op; | |
89 this.op3b03 = op3b03; | |
90 } | |
91 | |
92 @Override | |
93 public boolean matches(int instruction) { | |
94 if (instruction >>> 30 != op) { | |
95 return false; | |
96 } | |
97 int op3lo = (instruction >> 19) & ((1 << 4) - 1); | |
98 for (int op3Part : op3b03) { | |
99 if (op3Part == op3lo) { | |
100 return true; | |
101 } | |
102 } | |
103 return false; | |
104 } | |
105 } | |
106 | |
107 private static class SPARCInstructionMatch { | |
108 private final int mask; | |
109 private final int[] patterns; | |
110 | |
111 public SPARCInstructionMatch(int mask, int... patterns) { | |
112 super(); | |
113 this.mask = mask; | |
114 this.patterns = patterns; | |
115 } | |
116 | |
117 public boolean matches(int instruction) { | |
118 for (int pattern : patterns) { | |
119 if ((instruction & mask) == pattern) { | |
120 return true; | |
121 } | |
122 } | |
123 return false; | |
124 } | |
125 } | |
126 } |