1 /*
   2  * Copyright (c) 2015, 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.amd64;
  24 
  25 import static jdk.vm.ci.code.ValueUtil.asRegister;
  26 import jdk.vm.ci.amd64.AMD64Kind;
  27 import jdk.vm.ci.meta.AllocatableValue;
  28 import jdk.vm.ci.meta.Constant;
  29 
  30 import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler;
  31 import org.graalvm.compiler.debug.GraalError;
  32 import org.graalvm.compiler.lir.LIRInstructionClass;
  33 import org.graalvm.compiler.lir.amd64.AMD64LIRInstruction;
  34 import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
  35 
  36 public final class AMD64HotSpotLoadAddressOp extends AMD64LIRInstruction {
  37 
  38     public static final LIRInstructionClass<AMD64HotSpotLoadAddressOp> TYPE = LIRInstructionClass.create(AMD64HotSpotLoadAddressOp.class);
  39 
  40     @Def({OperandFlag.REG}) protected AllocatableValue result;
  41     private final Constant constant;
  42     private final Object note;
  43 
  44     public AMD64HotSpotLoadAddressOp(AllocatableValue result, Constant constant, Object note) {
  45         super(TYPE);
  46         this.result = result;
  47         this.constant = constant;
  48         this.note = note;
  49     }
  50 
  51     @Override
  52     public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
  53         crb.recordInlineDataInCodeWithNote(constant, note);
  54         AMD64Kind kind = (AMD64Kind) result.getPlatformKind();
  55         switch (kind) {
  56             case DWORD:
  57                 masm.movl(asRegister(result), masm.getPlaceholder(-1));
  58                 break;
  59             case QWORD:
  60                 masm.movq(asRegister(result), masm.getPlaceholder(-1));
  61                 break;
  62             default:
  63                 throw GraalError.shouldNotReachHere("unexpected kind: " + kind);
  64         }
  65     }
  66 
  67 }