SPARCHotSpotDeoptimizeCallerOp.java revision 12651:6ef01bd40ce2 
1/*
2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23package org.graalvm.compiler.hotspot.sparc;
24
25import static org.graalvm.compiler.hotspot.HotSpotHostBackend.UNCOMMON_TRAP_HANDLER;
26
27import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler;
28import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler.ScratchRegister;
29import org.graalvm.compiler.lir.LIRInstructionClass;
30import org.graalvm.compiler.lir.Opcode;
31import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
32import org.graalvm.compiler.lir.sparc.SPARCCall;
33
34import jdk.vm.ci.code.Register;
35
36/**
37 * Removes the current frame and tail calls the uncommon trap routine.
38 */
39@Opcode("DEOPT_CALLER")
40final class SPARCHotSpotDeoptimizeCallerOp extends SPARCHotSpotEpilogueOp {
41    public static final LIRInstructionClass<SPARCHotSpotDeoptimizeCallerOp> TYPE = LIRInstructionClass.create(SPARCHotSpotDeoptimizeCallerOp.class);
42    public static final SizeEstimate SIZE = SizeEstimate.create(32);
43
44    protected SPARCHotSpotDeoptimizeCallerOp() {
45        super(TYPE, SIZE);
46    }
47
48    @Override
49    public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
50        leaveFrame(crb);
51
52        // SPARCHotSpotBackend backend = (SPARCHotSpotBackend)
53        // HotSpotGraalRuntime.runtime().getBackend();
54        // final boolean isStub = true;
55        // HotSpotFrameContext frameContext = backend.new HotSpotFrameContext(isStub);
56        // frameContext.enter(crb);
57
58        try (ScratchRegister sc = masm.getScratchRegister()) {
59            Register scratch = sc.getRegister();
60            SPARCCall.indirectJmp(crb, masm, scratch, crb.foreignCalls.lookupForeignCall(UNCOMMON_TRAP_HANDLER));
61        }
62
63        // frameContext.leave(crb);
64    }
65}
66