Mercurial > hg > graal-compiler
view graal/com.oracle.graal.lir.aarch64/src/com/oracle/graal/lir/aarch64/AArch64SignExtendOp.java @ 23217:a1bfeec72458
AArch64 Graal Port
author | twisti |
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date | Thu, 24 Dec 2015 11:43:35 -1000 |
parents | |
children | 56359eb3abfa |
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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.lir.aarch64; import static jdk.vm.ci.code.ValueUtil.asRegister; import com.oracle.graal.asm.aarch64.AArch64MacroAssembler; import com.oracle.graal.lir.LIRInstructionClass; import com.oracle.graal.lir.asm.CompilationResultBuilder; import jdk.vm.ci.code.Register; import jdk.vm.ci.meta.AllocatableValue; public class AArch64SignExtendOp extends AArch64LIRInstruction { private static final LIRInstructionClass<AArch64SignExtendOp> TYPE = LIRInstructionClass.create(AArch64SignExtendOp.class); @Def protected AllocatableValue resultValue; @Use protected AllocatableValue inputValue; public AArch64SignExtendOp(AllocatableValue resultValue, AllocatableValue inputValue) { super(TYPE); this.resultValue = resultValue; this.inputValue = inputValue; } @Override public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) { Register result = asRegister(resultValue); Register input = asRegister(inputValue); int to = resultValue.getPlatformKind().getSizeInBytes() * Byte.SIZE; int from = inputValue.getPlatformKind().getSizeInBytes() * Byte.SIZE; masm.sxt(to, from, result, input); } }