Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotLoadFieldPlugin.java @ 21538:c1e2fdb5fea3
removed more dependencies from JVMCI classes to non-JVMCI classes (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 25 May 2015 17:20:39 +0200 |
parents | de0cf192779c |
children | 48c1ebd24120 |
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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.hotspot.meta; import static com.oracle.graal.compiler.common.GraalOptions.*; import static com.oracle.graal.hotspot.meta.HotSpotGraalConstantReflectionProvider.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.graphbuilderconf.*; import com.oracle.graal.nodes.*; public final class HotSpotLoadFieldPlugin implements LoadFieldPlugin { private final MetaAccessProvider metaAccess; private final ConstantReflectionProvider constantReflection; public HotSpotLoadFieldPlugin(MetaAccessProvider metaAccess, ConstantReflectionProvider constantReflection) { this.metaAccess = metaAccess; this.constantReflection = constantReflection; } public boolean apply(GraphBuilderContext b, ValueNode receiver, ResolvedJavaField field) { if (!ImmutableCode.getValue() || b.parsingIntrinsic()) { if (receiver.isConstant()) { JavaConstant asJavaConstant = receiver.asJavaConstant(); return tryReadField(b, field, asJavaConstant); } } return false; } private boolean tryReadField(GraphBuilderContext b, ResolvedJavaField field, JavaConstant receiver) { // FieldReadEnabledInImmutableCode is non null only if assertions are enabled if (FieldReadEnabledInImmutableCode != null && ImmutableCode.getValue()) { FieldReadEnabledInImmutableCode.set(Boolean.TRUE); try { return tryConstantFold(b, metaAccess, constantReflection, field, receiver); } finally { FieldReadEnabledInImmutableCode.set(null); } } else { return tryConstantFold(b, metaAccess, constantReflection, field, receiver); } } public boolean apply(GraphBuilderContext b, ResolvedJavaField staticField) { if (!ImmutableCode.getValue() || b.parsingIntrinsic()) { return tryReadField(b, staticField, null); } return false; } }