Mercurial > hg > graal-jvmci-8
view jvmci/jdk.vm.ci.code/src/jdk/vm/ci/code/ValueUtil.java @ 23398:3e8ce13f4e12
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author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 17 May 2016 21:10:34 +0200 |
parents | 1d4ce2d19e52 |
children |
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/* * Copyright (c) 2012, 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 jdk.vm.ci.code; import jdk.vm.ci.meta.AllocatableValue; import jdk.vm.ci.meta.JavaConstant; import jdk.vm.ci.meta.JavaValue; import jdk.vm.ci.meta.PlatformKind; import jdk.vm.ci.meta.Value; /** * 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.ILLEGAL.equals(value); } public static boolean isIllegalJavaValue(JavaValue value) { assert value != null; return Value.ILLEGAL.equals(value); } public static boolean isLegal(Value value) { return !isIllegal(value); } public static boolean isVirtualObject(JavaValue value) { assert value != null; return value instanceof VirtualObject; } public static VirtualObject asVirtualObject(JavaValue value) { assert value != null; return (VirtualObject) value; } public static boolean isConstantJavaValue(JavaValue value) { assert value != null; return value instanceof JavaConstant; } public static JavaConstant asConstantJavaValue(JavaValue value) { assert value != null; return (JavaConstant) 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) { return asRegisterValue(value).getRegister(); } public static RegisterValue asRegisterValue(Value value) { assert value != null; return (RegisterValue) value; } public static Register asRegister(Value value, PlatformKind kind) { if (value.getPlatformKind() != kind) { throw new InternalError("needed: " + kind + " got: " + value.getPlatformKind()); } else { return asRegister(value); } } }