1 /* 2 * Copyright (c) 2013, 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.lir.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.code.ValueUtil.isLegal; 28 29 import java.util.EnumSet; 30 31 import org.graalvm.compiler.asm.sparc.SPARCAddress; 32 import org.graalvm.compiler.asm.sparc.SPARCAssembler; 33 import org.graalvm.compiler.lir.CompositeValue; 34 import org.graalvm.compiler.lir.InstructionValueConsumer; 35 import org.graalvm.compiler.lir.InstructionValueProcedure; 36 import org.graalvm.compiler.lir.LIRInstruction; 37 import org.graalvm.compiler.lir.LIRInstruction.OperandFlag; 38 import org.graalvm.compiler.lir.LIRInstruction.OperandMode; 39 40 import jdk.vm.ci.meta.AllocatableValue; 41 import jdk.vm.ci.meta.Value; 42 import jdk.vm.ci.meta.ValueKind; 43 44 public final class SPARCImmediateAddressValue extends SPARCAddressValue { 45 46 @Component({REG}) protected AllocatableValue base; 47 protected final int displacement; 48 49 private static final EnumSet<OperandFlag> flags = EnumSet.of(OperandFlag.REG); 50 51 public SPARCImmediateAddressValue(ValueKind<?> kind, AllocatableValue base, int displacement) { 52 super(kind); 53 assert SPARCAssembler.isSimm13(displacement); 54 this.base = base; 55 this.displacement = displacement; 56 } 57 58 @Override 59 public CompositeValue forEachComponent(LIRInstruction inst, OperandMode mode, InstructionValueProcedure proc) { 60 AllocatableValue newBase = (AllocatableValue) proc.doValue(inst, base, mode, flags); 61 if (!base.identityEquals(newBase)) { 62 return new SPARCImmediateAddressValue(getValueKind(), newBase, displacement); 63 } 64 return this; 65 } 66 67 @Override 68 protected void visitEachComponent(LIRInstruction inst, OperandMode mode, InstructionValueConsumer proc) { 69 proc.visitValue(inst, base, mode, flags); 70 } 71 72 @Override 73 public SPARCAddress toAddress() { 74 return new SPARCAddress(asRegister(base), displacement); 75 } 76 77 @Override 78 public boolean isValidImplicitNullCheckFor(Value value, int implicitNullCheckLimit) { 79 return value.equals(base) && displacement >= 0 && displacement < implicitNullCheckLimit; 80 } 81 82 @Override 83 public String toString() { 84 StringBuilder s = new StringBuilder("["); 85 String sep = ""; 86 if (isLegal(base)) { 87 s.append(base); 88 sep = " + "; 89 } 90 if (displacement < 0) { 91 s.append(" - ").append(-displacement); 92 } else if (displacement > 0) { 93 s.append(sep).append(displacement); 94 } 95 s.append("]"); 96 return s.toString(); 97 } 98 99 @Override 100 public boolean equals(Object obj) { 101 if (obj instanceof SPARCImmediateAddressValue) { 102 SPARCImmediateAddressValue addr = (SPARCImmediateAddressValue) obj; 103 return getValueKind().equals(addr.getValueKind()) && displacement == addr.displacement && base.equals(addr.base); 104 } 105 return false; 106 } 107 108 @Override 109 public int hashCode() { 110 return base.hashCode() ^ (displacement << 4) ^ getValueKind().hashCode(); 111 } 112 }