| /* |
| * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.lir.aarch64; |
| |
| import java.util.EnumSet; |
| |
| import org.graalvm.compiler.asm.aarch64.AArch64Address; |
| import org.graalvm.compiler.asm.aarch64.AArch64Address.AddressingMode; |
| import org.graalvm.compiler.asm.aarch64.AArch64Assembler; |
| import org.graalvm.compiler.asm.aarch64.AArch64Assembler.ExtendType; |
| import org.graalvm.compiler.lir.CompositeValue; |
| import org.graalvm.compiler.lir.InstructionValueConsumer; |
| import org.graalvm.compiler.lir.InstructionValueProcedure; |
| import org.graalvm.compiler.lir.LIRInstruction; |
| import org.graalvm.compiler.lir.LIRInstruction.OperandFlag; |
| |
| import jdk.vm.ci.aarch64.AArch64; |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.code.RegisterValue; |
| import jdk.vm.ci.meta.AllocatableValue; |
| import jdk.vm.ci.meta.Value; |
| import jdk.vm.ci.meta.ValueKind; |
| |
| public final class AArch64AddressValue extends CompositeValue { |
| private static final EnumSet<OperandFlag> flags = EnumSet.of(OperandFlag.REG, OperandFlag.ILLEGAL); |
| |
| @Component({OperandFlag.REG, OperandFlag.ILLEGAL}) protected AllocatableValue base; |
| @Component({OperandFlag.REG, OperandFlag.ILLEGAL}) protected AllocatableValue offset; |
| private final int immediate; |
| |
| /** |
| * Whether register offset should be scaled or not. |
| */ |
| private final boolean scaled; |
| private final AddressingMode addressingMode; |
| |
| public AArch64AddressValue(ValueKind<?> kind, AllocatableValue base, AllocatableValue offset, int immediate, boolean scaled, AddressingMode addressingMode) { |
| super(kind); |
| this.base = base; |
| this.offset = offset; |
| this.immediate = immediate; |
| this.scaled = scaled; |
| this.addressingMode = addressingMode; |
| } |
| |
| private static Register toRegister(AllocatableValue value) { |
| if (value.equals(Value.ILLEGAL)) { |
| return AArch64.zr; |
| } else { |
| return ((RegisterValue) value).getRegister(); |
| } |
| } |
| |
| public AllocatableValue getBase() { |
| return base; |
| } |
| |
| public AllocatableValue getOffset() { |
| return offset; |
| } |
| |
| public int getImmediate() { |
| return immediate; |
| } |
| |
| public boolean isScaled() { |
| return scaled; |
| } |
| |
| public AddressingMode getAddressingMode() { |
| return addressingMode; |
| } |
| |
| public AArch64Address toAddress() { |
| Register baseReg = toRegister(base); |
| Register offsetReg = toRegister(offset); |
| AArch64Assembler.ExtendType extendType = addressingMode == AddressingMode.EXTENDED_REGISTER_OFFSET ? ExtendType.SXTW : null; |
| return AArch64Address.createAddress(addressingMode, baseReg, offsetReg, immediate, scaled, extendType); |
| } |
| |
| @Override |
| public CompositeValue forEachComponent(LIRInstruction inst, LIRInstruction.OperandMode mode, InstructionValueProcedure proc) { |
| AllocatableValue newBase = (AllocatableValue) proc.doValue(inst, base, mode, flags); |
| AllocatableValue newOffset = (AllocatableValue) proc.doValue(inst, offset, mode, flags); |
| if (!base.identityEquals(newBase) || !offset.identityEquals(newOffset)) { |
| return new AArch64AddressValue(getValueKind(), newBase, newOffset, immediate, scaled, addressingMode); |
| } |
| return this; |
| } |
| |
| @Override |
| protected void visitEachComponent(LIRInstruction inst, LIRInstruction.OperandMode mode, InstructionValueConsumer proc) { |
| proc.visitValue(inst, base, mode, flags); |
| proc.visitValue(inst, offset, mode, flags); |
| } |
| } |