Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot.aarch64/src/com/oracle/graal/hotspot/aarch64/AArch64HotSpotMoveFactory.java @ 23217:a1bfeec72458
AArch64 Graal Port
author | twisti |
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date | Thu, 24 Dec 2015 11:43:35 -1000 |
parents | |
children | 0a2e40f7a5d2 |
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/* * Copyright (c) 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 com.oracle.graal.hotspot.aarch64; import static jdk.vm.ci.hotspot.HotSpotCompressedNullConstant.COMPRESSED_NULL; import static jdk.vm.ci.meta.JavaConstant.INT_0; import static jdk.vm.ci.meta.JavaConstant.LONG_0; import com.oracle.graal.compiler.aarch64.AArch64LIRGenerator.ConstantTableBaseProvider; import com.oracle.graal.compiler.aarch64.AArch64MoveFactory; import com.oracle.graal.lir.LIRInstruction; import jdk.vm.ci.code.CodeCacheProvider; import jdk.vm.ci.common.JVMCIError; import jdk.vm.ci.hotspot.HotSpotCompressedNullConstant; import jdk.vm.ci.hotspot.HotSpotConstant; import jdk.vm.ci.hotspot.HotSpotObjectConstant; import jdk.vm.ci.meta.AllocatableValue; import jdk.vm.ci.meta.Constant; import jdk.vm.ci.meta.JavaConstant; public class AArch64HotSpotMoveFactory extends AArch64MoveFactory { public AArch64HotSpotMoveFactory(CodeCacheProvider codeCache, ConstantTableBaseProvider constantTableBaseProvider) { super(codeCache, constantTableBaseProvider); } @Override public boolean canInlineConstant(JavaConstant c) { if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) { return true; } else if (c instanceof HotSpotObjectConstant) { return false; } else { return super.canInlineConstant(c); } } @Override public LIRInstruction createLoad(AllocatableValue dst, Constant src) { Constant usedSource; if (COMPRESSED_NULL.equals(src)) { usedSource = INT_0; } else if (src instanceof HotSpotObjectConstant && ((HotSpotObjectConstant) src).isNull()) { usedSource = LONG_0; } else { usedSource = src; } if (usedSource instanceof HotSpotConstant) { HotSpotConstant constant = (HotSpotConstant) usedSource; if (constant.isCompressed()) { // return new SPARCHotSpotMove.LoadHotSpotObjectConstantInline(constant, dst); throw JVMCIError.unimplemented(); } else { // return new SPARCHotSpotMove.LoadHotSpotObjectConstantFromTable(constant, dst, // constantTableBaseProvider.getConstantTableBase()); throw JVMCIError.unimplemented(); } } else { return super.createLoad(dst, usedSource); } } }