Mercurial > hg > graal-compiler
view graal/GraalCompiler/src/com/sun/c1x/ir/LoadPointer.java @ 2509:16b9a8b5ad39
Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:50:44 +0200 |
parents | graal/Compiler/src/com/sun/c1x/ir/LoadPointer.java@9ec15d6914ca |
children |
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/* * Copyright (c) 2009, 2011, 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.sun.c1x.ir; import com.sun.c1x.debug.*; import com.sun.c1x.value.*; import com.sun.cri.ci.*; /** * The {@code LoadPointer} instruction represents a read of a pointer. * This instruction is part of the HIR support for low-level operations, such as safepoints, * stack banging, etc, and does not correspond to a Java operation. * * @author Ben L. Titzer * @author Doug Simon */ public final class LoadPointer extends PointerOp { /** * Creates an instruction for a pointer load. * * @param kind the kind of value loaded from the pointer * @param opcode the opcode of the instruction * @param pointer the value producing the pointer * @param displacement the value producing the displacement. This may be {@code null}. * @param offsetOrIndex the value producing the scaled-index or the byte offset depending on whether {@code displacement} is {@code null} * @param stateBefore the state before * @param isVolatile {@code true} if the access is volatile * @see PointerOp#PointerOp(CiKind, int, Value, Value, Value, FrameState, boolean) */ public LoadPointer(CiKind kind, int opcode, Value pointer, Value displacement, Value offsetOrIndex, FrameState stateBefore, boolean isVolatile) { super(kind, kind, opcode, pointer, displacement, offsetOrIndex, stateBefore, isVolatile); } @Override public void accept(ValueVisitor v) { v.visitLoadPointer(this); } @Override public void print(LogStream out) { out.print("*(").print(pointer()); if (displacement() == null) { out.print(" + ").print(offset()); } else { out.print(" + ").print(displacement()).print(" + (").print(index()).print(" * sizeOf(" + dataKind + "))"); } out.print(")"); } }