--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.jvmci.asm.sparc/src/com/oracle/jvmci/asm/sparc/SPARCInstructionCounter.java	Wed Jun 03 18:06:44 2015 +0200
@@ -0,0 +1,126 @@
+/*
+ * 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 com.oracle.jvmci.asm.sparc;
+
+import java.util.*;
+
+import com.oracle.jvmci.asm.Assembler.*;
+
+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;
+
+        public 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;
+
+        public 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;
+        }
+    }
+}