1 /*
   2  * Copyright (c) 2012, 2018, 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 jdk.vm.ci.sparc.SPARC.g5;
  28 
  29 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler;
  30 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
  31 import org.graalvm.compiler.lir.LIRFrameState;
  32 import org.graalvm.compiler.lir.LIRInstructionClass;
  33 import org.graalvm.compiler.lir.Opcode;
  34 import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
  35 import org.graalvm.compiler.lir.sparc.SPARCCall.DirectCallOp;
  36 import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind;
  37 
  38 import jdk.vm.ci.code.Register;
  39 import jdk.vm.ci.meta.ResolvedJavaMethod;
  40 import jdk.vm.ci.meta.Value;
  41 
  42 /**
  43  * A direct call that complies with the conventions for such calls in HotSpot. In particular, for
  44  * calls using an inline cache, a MOVE instruction is emitted just prior to the aligned direct call.
  45  */
  46 @Opcode("CALL_DIRECT")
  47 final class SPARCHotspotDirectVirtualCallOp extends DirectCallOp {
  48     public static final LIRInstructionClass<SPARCHotspotDirectVirtualCallOp> TYPE = LIRInstructionClass.create(SPARCHotspotDirectVirtualCallOp.class);
  49     public static final SizeEstimate SIZE = SizeEstimate.create(8);
  50 
  51     private final InvokeKind invokeKind;
  52     private final GraalHotSpotVMConfig config;
  53 
  54     SPARCHotspotDirectVirtualCallOp(ResolvedJavaMethod target, Value result, Value[] parameters, Value[] temps, LIRFrameState state, InvokeKind invokeKind, GraalHotSpotVMConfig config) {
  55         super(TYPE, SIZE, target, result, parameters, temps, state);
  56         this.invokeKind = invokeKind;
  57         this.config = config;
  58         assert invokeKind.isIndirect();
  59     }
  60 
  61     @Override
  62     public void emitCallPrefixCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
  63         // The mark for an invocation that uses an inline cache must be placed at the
  64         // instruction that loads the Klass from the inline cache.
  65         crb.recordMark(invokeKind == InvokeKind.Virtual ? config.MARKID_INVOKEVIRTUAL : config.MARKID_INVOKEINTERFACE);
  66         Register scratchRegister = g5;
  67         masm.setx(config.nonOopBits, scratchRegister, true);
  68     }
  69 }