Mercurial > hg > truffle
view graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/ValueUtil.java @ 11805:73a886a9564a
Make AbstractBeginNode a IterableNodeType and use this in ControlFlowGraph
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 26 Sep 2013 11:15:45 +0200 |
parents | e92fdf3e1558 |
children | eb03a7335eb0 |
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/* * Copyright (c) 2012, 2012, 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.api.code; import com.oracle.graal.api.meta.*; /** * Utility class for working with the {@link Value} class and its subclasses. */ public final class ValueUtil { public static boolean isIllegal(Value value) { assert value != null; return value.equals(Value.ILLEGAL); } public static boolean isLegal(Value value) { return !isIllegal(value); } public static boolean isVirtualObject(Value value) { assert value != null; return value instanceof VirtualObject; } public static VirtualObject asVirtualObject(Value value) { assert value != null; return (VirtualObject) value; } public static boolean isConstant(Value value) { assert value != null; return value instanceof Constant; } public static Constant asConstant(Value value) { assert value != null; return (Constant) value; } public static boolean isAllocatableValue(Value value) { assert value != null; return value instanceof AllocatableValue; } public static AllocatableValue asAllocatableValue(Value value) { assert value != null; return (AllocatableValue) value; } public static boolean isStackSlot(Value value) { assert value != null; return value instanceof StackSlot; } public static StackSlot asStackSlot(Value value) { assert value != null; return (StackSlot) value; } public static boolean isRegister(Value value) { assert value != null; return value instanceof RegisterValue; } public static Register asRegister(Value value) { assert value != null; return ((RegisterValue) value).getRegister(); } public static Register asIntReg(Value value) { if (value.getKind() != Kind.Int) { throw new InternalError("needed Int got: " + value.getKind()); } else { return asRegister(value); } } public static Register asLongReg(Value value) { if (value.getKind() != Kind.Long) { throw new InternalError("needed Long got: " + value.getKind()); } else { return asRegister(value); } } public static Register asObjectReg(Value value) { assert value.getKind() == Kind.Object; return asRegister(value); } public static Register asFloatReg(Value value) { assert value.getKind() == Kind.Float; return asRegister(value); } public static Register asDoubleReg(Value value) { assert value.getKind() == Kind.Double; return asRegister(value); } public static boolean sameRegister(Value v1, Value v2) { return isRegister(v1) && isRegister(v2) && asRegister(v1).equals(asRegister(v2)); } public static boolean sameRegister(Value v1, Value v2, Value v3) { return sameRegister(v1, v2) && sameRegister(v1, v3); } public static boolean differentRegisters(Value v1, Value v2) { return !isRegister(v1) || !isRegister(v2) || !asRegister(v1).equals(asRegister(v2)); } public static boolean differentRegisters(Value v1, Value v2, Value v3) { return differentRegisters(v1, v2) && differentRegisters(v1, v3) && differentRegisters(v2, v3); } }