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annotate graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64IndirectCallOp.java @ 8974:63e970d77f51

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Common base class for method call operations.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Tue, 09 Apr 2013 20:00:17 +0200
parents 0799a7efbe7b
children e92fdf3e1558
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1 /*
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2 * Copyright (c) 2012, 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.hotspot.amd64;
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24
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25 import static com.oracle.graal.api.code.ValueUtil.*;
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26 import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
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27
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28 import com.oracle.graal.amd64.*;
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29 import com.oracle.graal.api.code.*;
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30 import com.oracle.graal.api.meta.*;
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31 import com.oracle.graal.asm.amd64.*;
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32 import com.oracle.graal.hotspot.bridge.*;
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33 import com.oracle.graal.lir.*;
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34 import com.oracle.graal.lir.LIRInstruction.Opcode;
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35 import com.oracle.graal.lir.amd64.*;
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36 import com.oracle.graal.lir.amd64.AMD64Call.IndirectCallOp;
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37 import com.oracle.graal.lir.asm.*;
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38
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39 /**
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40 * A register indirect call that complies with the extra conventions for such calls in HotSpot. In
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41 * particular, the metaspace Method of the callee must be in RBX for the case where a vtable entry's
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42 * _from_compiled_entry is the address of an C2I adapter. Such adapters expect the target method to
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43 * be in RBX.
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44 */
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45 @Opcode("CALL_INDIRECT")
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46 final class AMD64IndirectCallOp extends IndirectCallOp {
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48 /**
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49 * Vtable stubs expect the metaspace Method in RBX.
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50 */
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51 public static final Register METHOD = AMD64.rbx;
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52
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53 @Use({REG}) protected Value metaspaceMethod;
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54
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55 AMD64IndirectCallOp(ResolvedJavaMethod targetMethod, Value result, Value[] parameters, Value[] temps, Value metaspaceMethod, Value targetAddress, LIRFrameState state) {
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56 super(targetMethod, result, parameters, temps, targetAddress, state);
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57 this.metaspaceMethod = metaspaceMethod;
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58 }
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59
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60 @Override
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61 public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
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62 tasm.recordMark(Marks.MARK_INLINE_INVOKE);
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63 Register callReg = asRegister(targetAddress);
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64 assert callReg != METHOD;
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65 AMD64Call.indirectCall(tasm, masm, callReg, callTarget, state);
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66 }
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67
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68 @Override
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69 protected void verify() {
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70 super.verify();
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71 assert asRegister(metaspaceMethod) == METHOD;
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72 }
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73 }