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annotate graal/com.oracle.graal.lir.ptx/src/com/oracle/graal/lir/ptx/PTXBitManipulationOp.java @ 9144:025448743177

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mx: generate services files from provider descriptions
author Roland Schatz <roland.schatz@oracle.com>
date Tue, 16 Apr 2013 15:27:17 +0200
parents 58b1820ff19a
children fbeda9df497d
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.lir.ptx;
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24
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25 import com.oracle.graal.api.code.*;
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26 import com.oracle.graal.api.meta.*;
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27 import com.oracle.graal.asm.ptx.*;
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28 import com.oracle.graal.graph.*;
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29 import com.oracle.graal.lir.asm.*;
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30
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31 public class PTXBitManipulationOp extends PTXLIRInstruction {
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32
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33 public enum IntrinsicOpcode {
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34 IPOPCNT, LPOPCNT, IBSR, LBSR, BSF;
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35 }
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36
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37 @Opcode private final IntrinsicOpcode opcode;
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38 @Def protected Value result;
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39 @Use({OperandFlag.REG}) protected Value input;
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40
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41 public PTXBitManipulationOp(IntrinsicOpcode opcode, Value result, Value input) {
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42 this.opcode = opcode;
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43 this.result = result;
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44 this.input = input;
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45 }
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46
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47 @Override
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48 public void emitCode(TargetMethodAssembler tasm, PTXAssembler masm) {
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49 Register dst = ValueUtil.asIntReg(result);
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50 Register src = ValueUtil.asRegister(input);
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51 switch (opcode) {
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52 case IPOPCNT:
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53 masm.popc_b32(dst, src);
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54 break;
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55 case LPOPCNT:
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56 masm.popc_b64(dst, src);
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57 break;
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58 default:
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59 throw GraalInternalError.shouldNotReachHere();
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60 }
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61 }
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62 }