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  */
  23 package org.graalvm.compiler.hotspot.sparc;
  24 
  25 import static org.graalvm.compiler.hotspot.HotSpotHostBackend.UNCOMMON_TRAP_HANDLER;
  26 
  27 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler;
  28 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler.ScratchRegister;
  29 import org.graalvm.compiler.lir.LIRInstructionClass;
  30 import org.graalvm.compiler.lir.Opcode;
  31 import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
  32 import org.graalvm.compiler.lir.sparc.SPARCCall;
  33 
  34 import jdk.vm.ci.code.Register;
  35 
  36 /**
  37  * Removes the current frame and tail calls the uncommon trap routine.
  38  */
  39 @Opcode("DEOPT_CALLER")
  40 final 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 }