Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/phases/AheadOfTimeVerificationPhase.java @ 21526:1da7aef31a08
created com.oracle.graal.hotspot.jvmci package and moved classes destined for future JVMCI module into it (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 19 May 2015 23:16:07 +0200 |
parents | 28117ede7606 |
children | 5324104ac4f3 |
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/* * Copyright (c) 2013, 2014, 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.phases; import static com.oracle.graal.nodes.ConstantNode.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.hotspot.jvmci.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.type.*; import com.oracle.graal.phases.*; import com.oracle.graal.phases.tiers.*; /** * Checks for {@link #isIllegalObjectConstant(ConstantNode) illegal} object constants in a graph * processed for AOT compilation. * * @see LoadJavaMirrorWithKlassPhase */ public class AheadOfTimeVerificationPhase extends VerifyPhase<PhaseContext> { @Override protected boolean verify(StructuredGraph graph, PhaseContext context) { for (ConstantNode node : getConstantNodes(graph)) { if (isIllegalObjectConstant(node)) { throw new VerificationError("illegal object constant: " + node); } } return true; } public static boolean isIllegalObjectConstant(ConstantNode node) { return isObject(node) && !isNullReference(node) && !isInternedString(node) && !isDirectMethodHandle(node) && !isBoundMethodHandle(node); } private static boolean isObject(ConstantNode node) { return node.getKind() == Kind.Object; } private static boolean isNullReference(ConstantNode node) { return isObject(node) && node.isNullConstant(); } private static boolean isDirectMethodHandle(ConstantNode node) { if (!isObject(node)) { return false; } return "Ljava/lang/invoke/DirectMethodHandle;".equals(StampTool.typeOrNull(node).getName()); } private static boolean isBoundMethodHandle(ConstantNode node) { if (!isObject(node)) { return false; } return StampTool.typeOrNull(node).getName().startsWith("Ljava/lang/invoke/BoundMethodHandle"); } private static boolean isInternedString(ConstantNode node) { if (!isObject(node)) { return false; } HotSpotObjectConstant c = (HotSpotObjectConstant) node.asConstant(); return c.isInternedString(); } }