| /* |
| * Copyright (c) 2015, 2016, 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.core.aarch64; |
| |
| import static org.graalvm.compiler.lir.LIRValueUtil.asConstant; |
| import static org.graalvm.compiler.lir.LIRValueUtil.isConstantValue; |
| import static org.graalvm.compiler.lir.LIRValueUtil.isStackSlotValue; |
| |
| import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; |
| import org.graalvm.compiler.core.common.type.DataPointerConstant; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.lir.LIRInstruction; |
| import org.graalvm.compiler.lir.aarch64.AArch64AddressValue; |
| import org.graalvm.compiler.lir.aarch64.AArch64Move; |
| import org.graalvm.compiler.lir.aarch64.AArch64Move.LoadAddressOp; |
| import org.graalvm.compiler.lir.gen.LIRGeneratorTool.MoveFactory; |
| |
| import jdk.vm.ci.meta.AllocatableValue; |
| import jdk.vm.ci.meta.Constant; |
| import jdk.vm.ci.meta.JavaConstant; |
| import jdk.vm.ci.meta.Value; |
| |
| public class AArch64MoveFactory implements MoveFactory { |
| |
| @Override |
| public LIRInstruction createMove(AllocatableValue dst, Value src) { |
| boolean srcIsSlot = isStackSlotValue(src); |
| boolean dstIsSlot = isStackSlotValue(dst); |
| if (isConstantValue(src)) { |
| return createLoad(dst, asConstant(src)); |
| } else if (src instanceof AArch64AddressValue) { |
| return new LoadAddressOp(dst, (AArch64AddressValue) src); |
| } else { |
| assert src instanceof AllocatableValue; |
| if (srcIsSlot && dstIsSlot) { |
| throw GraalError.shouldNotReachHere(src.getClass() + " " + dst.getClass()); |
| } else { |
| return new AArch64Move.Move(dst, (AllocatableValue) src); |
| } |
| } |
| } |
| |
| @Override |
| public LIRInstruction createStackMove(AllocatableValue result, AllocatableValue input) { |
| return new AArch64Move.Move(result, input); |
| } |
| |
| @Override |
| public LIRInstruction createLoad(AllocatableValue dst, Constant src) { |
| if (src instanceof JavaConstant) { |
| JavaConstant javaConstant = (JavaConstant) src; |
| if (canInlineConstant(javaConstant)) { |
| return new AArch64Move.LoadInlineConstant(javaConstant, dst); |
| } else { |
| // return new AArch64Move.LoadConstantFromTable(javaConstant, |
| // constantTableBaseProvider.getConstantTableBase(), dst); |
| return new AArch64Move.LoadInlineConstant(javaConstant, dst); |
| } |
| } else if (src instanceof DataPointerConstant) { |
| return new AArch64Move.LoadDataOp(dst, (DataPointerConstant) src); |
| } else { |
| // throw GraalError.shouldNotReachHere(src.getClass().toString()); |
| throw GraalError.unimplemented(); |
| } |
| } |
| |
| @Override |
| public boolean canInlineConstant(JavaConstant c) { |
| switch (c.getJavaKind()) { |
| case Boolean: |
| case Byte: |
| case Char: |
| case Short: |
| case Int: |
| return AArch64MacroAssembler.isMovableImmediate(c.asInt()); |
| case Long: |
| return AArch64MacroAssembler.isMovableImmediate(c.asLong()); |
| case Object: |
| return c.isNull(); |
| default: |
| return false; |
| } |
| } |
| |
| @Override |
| public boolean allowConstantToStackMove(Constant value) { |
| return false; |
| } |
| |
| } |