1 /* 2 * Copyright (c) 2013, 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.lir.sparc; 26 27 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 28 import static jdk.vm.ci.code.ValueUtil.asRegister; 29 import static jdk.vm.ci.code.ValueUtil.isLegal; 30 31 import java.util.EnumSet; 32 33 import org.graalvm.compiler.asm.sparc.SPARCAddress; 34 import org.graalvm.compiler.asm.sparc.SPARCAssembler; 35 import org.graalvm.compiler.lir.CompositeValue; 36 import org.graalvm.compiler.lir.InstructionValueConsumer; 37 import org.graalvm.compiler.lir.InstructionValueProcedure; 38 import org.graalvm.compiler.lir.LIRInstruction; 39 import org.graalvm.compiler.lir.LIRInstruction.OperandFlag; 40 import org.graalvm.compiler.lir.LIRInstruction.OperandMode; 41 42 import jdk.vm.ci.meta.AllocatableValue; 43 import jdk.vm.ci.meta.Value; 44 import jdk.vm.ci.meta.ValueKind; 45 46 public final class SPARCImmediateAddressValue extends SPARCAddressValue { 47 48 @Component({REG}) protected AllocatableValue base; 49 protected final int displacement; 50 51 private static final EnumSet<OperandFlag> flags = EnumSet.of(OperandFlag.REG); 52 53 public SPARCImmediateAddressValue(ValueKind<?> kind, AllocatableValue base, int displacement) { 54 super(kind); 55 assert SPARCAssembler.isSimm13(displacement); 56 this.base = base; 57 this.displacement = displacement; 58 } 59 60 @Override 61 public CompositeValue forEachComponent(LIRInstruction inst, OperandMode mode, InstructionValueProcedure proc) { 62 AllocatableValue newBase = (AllocatableValue) proc.doValue(inst, base, mode, flags); 63 if (!base.identityEquals(newBase)) { 64 return new SPARCImmediateAddressValue(getValueKind(), newBase, displacement); 65 } 66 return this; 67 } 68 69 @Override 70 protected void visitEachComponent(LIRInstruction inst, OperandMode mode, InstructionValueConsumer proc) { 71 proc.visitValue(inst, base, mode, flags); 72 } 73 74 @Override 75 public SPARCAddress toAddress() { 76 return new SPARCAddress(asRegister(base), displacement); 77 } 78 79 @Override 80 public boolean isValidImplicitNullCheckFor(Value value, int implicitNullCheckLimit) { 81 return value.equals(base) && displacement >= 0 && displacement < implicitNullCheckLimit; 82 } 83 84 @Override 85 public String toString() { 86 StringBuilder s = new StringBuilder("["); 87 String sep = ""; 88 if (isLegal(base)) { 89 s.append(base); 90 sep = " + "; 91 } 92 if (displacement < 0) { 93 s.append(" - ").append(-displacement); 94 } else if (displacement > 0) { 95 s.append(sep).append(displacement); 96 } 97 s.append("]"); 98 return s.toString(); 99 } 100 101 @Override 102 public boolean equals(Object obj) { 103 if (obj instanceof SPARCImmediateAddressValue) { 104 SPARCImmediateAddressValue addr = (SPARCImmediateAddressValue) obj; 105 return getValueKind().equals(addr.getValueKind()) && displacement == addr.displacement && base.equals(addr.base); 106 } 107 return false; 108 } 109 110 @Override 111 public int hashCode() { 112 return base.hashCode() ^ (displacement << 4) ^ getValueKind().hashCode(); 113 } 114 }