001/*
002 * Copyright (c) 2014, 2015, 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 static jdk.internal.jvmci.sparc.SPARC.*;
026
027import com.oracle.graal.asm.sparc.*;
028import com.oracle.graal.lir.*;
029import com.oracle.graal.lir.asm.*;
030import com.oracle.graal.lir.sparc.*;
031
032/**
033 * Pops the current frame off the stack including the return address.
034 */
035@Opcode("LEAVE_DEOPTIMIZED_STACK_FRAME")
036final class SPARCHotSpotLeaveDeoptimizedStackFrameOp extends SPARCLIRInstruction {
037
038    public static final LIRInstructionClass<SPARCHotSpotLeaveDeoptimizedStackFrameOp> TYPE = LIRInstructionClass.create(SPARCHotSpotLeaveDeoptimizedStackFrameOp.class);
039
040    protected SPARCHotSpotLeaveDeoptimizedStackFrameOp() {
041        super(TYPE);
042    }
043
044    @Override
045    public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
046        // Save O registers over restore.
047        masm.mov(o0, i0);
048        masm.mov(o1, i1);
049        masm.mov(o2, i2);
050        masm.mov(o3, i3);
051        masm.mov(o4, i4);
052
053        masm.restoreWindow();
054    }
055
056    @Override
057    public boolean leavesRegisterWindow() {
058        return true;
059    }
060}