1 /*
   2  * Copyright (c) 2012, 2020, 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 
  24 
  25 package org.graalvm.compiler.hotspot.sparc;
  26 
  27 import static org.graalvm.compiler.hotspot.HotSpotHostBackend.DEOPT_BLOB_UNCOMMON_TRAP;
  28 
  29 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler;
  30 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler.ScratchRegister;
  31 import org.graalvm.compiler.lir.LIRInstructionClass;
  32 import org.graalvm.compiler.lir.Opcode;
  33 import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
  34 import org.graalvm.compiler.lir.sparc.SPARCCall;
  35 
  36 import jdk.vm.ci.code.Register;
  37 
  38 /**
  39  * Removes the current frame and tail calls the uncommon trap routine.
  40  */
  41 @Opcode("DEOPT_CALLER")
  42 final class SPARCHotSpotDeoptimizeCallerOp extends SPARCHotSpotEpilogueOp {
  43     public static final LIRInstructionClass<SPARCHotSpotDeoptimizeCallerOp> TYPE = LIRInstructionClass.create(SPARCHotSpotDeoptimizeCallerOp.class);
  44     public static final SizeEstimate SIZE = SizeEstimate.create(32);
  45 
  46     protected SPARCHotSpotDeoptimizeCallerOp() {
  47         super(TYPE, SIZE);
  48     }
  49 
  50     @Override
  51     public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
  52         leaveFrame(crb);
  53 
  54         // SPARCHotSpotBackend backend = (SPARCHotSpotBackend)
  55         // HotSpotGraalRuntime.runtime().getBackend();
  56         // final boolean isStub = true;
  57         // HotSpotFrameContext frameContext = backend.new HotSpotFrameContext(isStub);
  58         // frameContext.enter(crb);
  59 
  60         try (ScratchRegister sc = masm.getScratchRegister()) {
  61             Register scratch = sc.getRegister();
  62             SPARCCall.indirectJmp(crb, masm, scratch, crb.foreignCalls.lookupForeignCall(DEOPT_BLOB_UNCOMMON_TRAP));
  63         }
  64 
  65         // frameContext.leave(crb);
  66     }
  67 }