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.lir.LIRInstruction.OperandFlag.REG;
  26 import static jdk.vm.ci.code.ValueUtil.asRegister;
  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;
  36 import org.graalvm.compiler.lir.sparc.SPARCCall.IndirectCallOp;
  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 register indirect call that complies with the extra conventions for such calls in HotSpot. In
  44  * particular, the metaspace Method of the callee must be in g5 for the case where a vtable entry's
  45  * _from_compiled_entry is the address of an C2I adapter. Such adapters expect the target method to
  46  * be in g5.
  47  */
  48 @Opcode("CALL_INDIRECT")
  49 final class SPARCIndirectCallOp extends IndirectCallOp {
  50     public static final LIRInstructionClass<SPARCIndirectCallOp> TYPE = LIRInstructionClass.create(SPARCIndirectCallOp.class);
  51     public static final SizeEstimate SIZE = SizeEstimate.create(2);
  52 
  53     /**
  54      * Vtable stubs expect the metaspace Method in g5.
  55      */
  56     public static final Register METHOD = g5;
  57 
  58     @Use({REG}) protected Value metaspaceMethod;
  59 
  60     private final GraalHotSpotVMConfig config;
  61 
  62     SPARCIndirectCallOp(ResolvedJavaMethod targetMethod, Value result, Value[] parameters, Value[] temps, Value metaspaceMethod, Value targetAddress, LIRFrameState state,
  63                     GraalHotSpotVMConfig config) {
  64         super(TYPE, SIZE, targetMethod, result, parameters, temps, targetAddress, state);
  65         this.metaspaceMethod = metaspaceMethod;
  66         this.config = config;
  67     }
  68 
  69     @Override
  70     public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
  71         crb.recordMark(config.MARKID_INLINE_INVOKE);
  72         Register callReg = asRegister(targetAddress);
  73         assert !callReg.equals(METHOD);
  74         SPARCCall.indirectCall(crb, masm, callReg, callTarget, state);
  75     }
  76 
  77     @Override
  78     public void verify() {
  79         super.verify();
  80         assert asRegister(metaspaceMethod).equals(METHOD);
  81     }
  82 }