Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/SystemSubstitutions.java @ 19791:14e703edb2ab
use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 11 Mar 2015 20:43:12 +0100 |
parents | 5afa718edb8b |
children | 8470e81631f8 |
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/* * Copyright (c) 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.oracle.graal.hotspot.replacements; import static com.oracle.graal.hotspot.replacements.HotSpotReplacementsUtil.*; import static com.oracle.graal.nodes.extended.BranchProbabilityNode.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.api.replacements.*; import com.oracle.graal.hotspot.replacements.arraycopy.*; import com.oracle.graal.nodes.spi.*; /** * Substitutions for {@link java.lang.System} methods. */ @ClassSubstitution(java.lang.System.class) public class SystemSubstitutions { public static final ForeignCallDescriptor JAVA_TIME_MILLIS = new ForeignCallDescriptor("javaTimeMillis", long.class); public static final ForeignCallDescriptor JAVA_TIME_NANOS = new ForeignCallDescriptor("javaTimeNanos", long.class); @MacroSubstitution(macro = ArrayCopyNode.class) public static native void arraycopy(Object src, int srcPos, Object dest, int destPos, int length); @MacroSubstitution(macro = SystemIdentityHashCodeNode.class) @MethodSubstitution public static int identityHashCode(Object x) { if (probability(NOT_FREQUENT_PROBABILITY, x == null)) { return 0; } return computeHashCode(x); } }