001/*
002 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.hotspot.sparc;
024
025import jdk.internal.jvmci.code.*;
026import static com.oracle.graal.hotspot.HotSpotHostBackend.*;
027
028import com.oracle.graal.asm.sparc.*;
029import com.oracle.graal.asm.sparc.SPARCMacroAssembler.*;
030import com.oracle.graal.lir.*;
031import com.oracle.graal.lir.asm.*;
032import com.oracle.graal.lir.sparc.*;
033
034/**
035 * Removes the current frame and tail calls the uncommon trap routine.
036 */
037@Opcode("DEOPT_CALLER")
038final class SPARCHotSpotDeoptimizeCallerOp extends SPARCHotSpotEpilogueOp {
039    public static final LIRInstructionClass<SPARCHotSpotDeoptimizeCallerOp> TYPE = LIRInstructionClass.create(SPARCHotSpotDeoptimizeCallerOp.class);
040    public static final SizeEstimate SIZE = SizeEstimate.create(32);
041
042    protected SPARCHotSpotDeoptimizeCallerOp() {
043        super(TYPE, SIZE);
044    }
045
046    @Override
047    public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
048        leaveFrame(crb);
049
050        // SPARCHotSpotBackend backend = (SPARCHotSpotBackend)
051        // HotSpotGraalRuntime.runtime().getBackend();
052        // final boolean isStub = true;
053        // HotSpotFrameContext frameContext = backend.new HotSpotFrameContext(isStub);
054        // frameContext.enter(crb);
055
056        try (ScratchRegister sc = masm.getScratchRegister()) {
057            Register scratch = sc.getRegister();
058            SPARCCall.indirectJmp(crb, masm, scratch, crb.foreignCalls.lookupForeignCall(UNCOMMON_TRAP_HANDLER));
059        }
060
061        // frameContext.leave(crb);
062    }
063}