Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot.hsail/src/com/oracle/graal/hotspot/hsail/HSAILHotSpotReplacementsImpl.java @ 15942:5c73b162eec2
reduced execution time of ReplacementsImple.registerSubstitutions() by deferring parsing of substitution classes until the first request for a substitute method is received
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 28 May 2014 00:50:11 +0200 |
parents | db4254246f9a |
children | 2d296658a24e |
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/* * Copyright (c) 2013, 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.hsail; import java.lang.reflect.*; import java.util.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.api.replacements.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.phases.util.*; import com.oracle.graal.replacements.*; import com.oracle.graal.replacements.hsail.*; /** * The substitutions and snippets supported by HSAIL. */ public class HSAILHotSpotReplacementsImpl extends ReplacementsImpl { private final Replacements host; private HashSet<ResolvedJavaMethod> ignoredResolvedMethods = new HashSet<>(); public HSAILHotSpotReplacementsImpl(Providers providers, SnippetReflectionProvider snippetReflection, Assumptions assumptions, TargetDescription target, Replacements host) { super(providers, snippetReflection, assumptions, target); this.host = host; } public void addIgnoredResolvedMethod(Class<?> cls, String methName, Class<?>... params) { try { Method m = cls.getMethod(methName, params); ResolvedJavaMethod rjm = providers.getMetaAccess().lookupJavaMethod(m); ignoredResolvedMethods.add(rjm); } catch (Exception e) { e.printStackTrace(); } } public void completeInitialization() { // Register the substitutions for java.lang.Math routines. registerSubstitutions(Math.class, HSAILMathSubstitutions.class); // Register the ignored substitutions addIgnoredResolvedMethod(String.class, "equals", Object.class); } @Override protected ResolvedJavaMethod registerMethodSubstitution(ClassReplacements cr, Member originalMethod, Method substituteMethod) { // TODO: decide if we want to override this in any way return super.registerMethodSubstitution(cr, originalMethod, substituteMethod); } @Override public Class<? extends FixedWithNextNode> getMacroSubstitution(ResolvedJavaMethod method) { Class<? extends FixedWithNextNode> klass = super.getMacroSubstitution(method); if (klass == null) { // eventually we want to only defer certain macro substitutions to the host, but for now // we will do everything return host.getMacroSubstitution(method); } return klass; } @Override public StructuredGraph getSnippet(ResolvedJavaMethod method) { // Must work in cooperation with HSAILHotSpotLoweringProvider return host.getSnippet(method); } @Override public StructuredGraph getMethodSubstitution(ResolvedJavaMethod original) { StructuredGraph m = super.getMethodSubstitution(original); if (m == null) { // we check for a few special cases we do NOT want to defer here // but basically we defer everything else to the host if (ignoredResolvedMethods.contains(original)) { return null; } else { return host.getMethodSubstitution(original); } } return m; } }