| /* |
| * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.asm.sparc; |
| |
| import java.util.TreeMap; |
| |
| import org.graalvm.compiler.asm.Assembler.InstructionCounter; |
| |
| public class SPARCInstructionCounter implements InstructionCounter { |
| // Use a treemap to keep the order in the output |
| private static final TreeMap<String, SPARCInstructionMatch> INSTRUCTION_MATCHER = new TreeMap<>(); |
| |
| static { |
| // @formatter:off |
| INSTRUCTION_MATCHER.put("nop", new SPARCInstructionMatch(0xFFFF_FFFF, 0x0100_0000)); |
| INSTRUCTION_MATCHER.put("st", new OP3LowBitsMatcher(0b11, 0x4, 0x5, 0x6, 0x7, 0xe, 0xf)); |
| INSTRUCTION_MATCHER.put("ld", new OP3LowBitsMatcher(0b11, 0x0, 0x1, 0x2, 0x3, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd)); |
| INSTRUCTION_MATCHER.put("all", new SPARCInstructionMatch(0x0, 0x0)); |
| // @formatter:on |
| } |
| |
| private final SPARCAssembler asm; |
| |
| public SPARCInstructionCounter(SPARCAssembler asm) { |
| super(); |
| this.asm = asm; |
| } |
| |
| @Override |
| public int[] countInstructions(String[] instructionTypes, int beginPc, int endPc) { |
| SPARCInstructionMatch[] matchers = new SPARCInstructionMatch[instructionTypes.length]; |
| for (int i = 0; i < instructionTypes.length; i++) { |
| String typeName = instructionTypes[i]; |
| matchers[i] = INSTRUCTION_MATCHER.get(typeName); |
| if (matchers[i] == null) { |
| throw new IllegalArgumentException(String.format("Unknown instruction class %s, supported types are: %s", typeName, INSTRUCTION_MATCHER.keySet())); |
| } |
| } |
| return countBetween(matchers, beginPc, endPc); |
| } |
| |
| private int[] countBetween(SPARCInstructionMatch[] matchers, int startPc, int endPc) { |
| int[] counts = new int[matchers.length]; |
| for (int p = startPc; p < endPc; p += 4) { |
| int instr = asm.getInt(p); |
| for (int i = 0; i < matchers.length; i++) { |
| SPARCInstructionMatch matcher = matchers[i]; |
| if (matcher.matches(instr)) { |
| counts[i]++; |
| } |
| } |
| } |
| return counts; |
| } |
| |
| @Override |
| public String[] getSupportedInstructionTypes() { |
| return INSTRUCTION_MATCHER.keySet().toArray(new String[0]); |
| } |
| |
| /** |
| * Tests the lower 3 bits of the op3 field. |
| */ |
| private static class OP3LowBitsMatcher extends SPARCInstructionMatch { |
| private final int[] op3b03; |
| private final int op; |
| |
| OP3LowBitsMatcher(int op, int... op3b03) { |
| super(0, 0); |
| this.op = op; |
| this.op3b03 = op3b03; |
| } |
| |
| @Override |
| public boolean matches(int instruction) { |
| if (instruction >>> 30 != op) { |
| return false; |
| } |
| int op3lo = (instruction >> 19) & ((1 << 4) - 1); |
| for (int op3Part : op3b03) { |
| if (op3Part == op3lo) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| |
| private static class SPARCInstructionMatch { |
| private final int mask; |
| private final int[] patterns; |
| |
| SPARCInstructionMatch(int mask, int... patterns) { |
| super(); |
| this.mask = mask; |
| this.patterns = patterns; |
| } |
| |
| public boolean matches(int instruction) { |
| for (int pattern : patterns) { |
| if ((instruction & mask) == pattern) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| } |