Mercurial > hg > truffle
view graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/DefaultInliningPolicy.java @ 15089:448338c9ce96
Truffle: Made inlining context-insensitive again to reduce complexity.
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 14 Apr 2014 18:25:23 +0200 |
parents | a31d807757ee |
children | 2662fb9c37e2 |
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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.truffle; import static com.oracle.graal.truffle.TruffleCompilerOptions.*; public class DefaultInliningPolicy implements TruffleInliningPolicy { private static final String REASON_RECURSION = "recursion"; private static final String REASON_MAXIMUM_NODE_COUNT = "deepNodeCount * callSites > " + TruffleInliningMaxCallerSize.getValue(); private static final String REASON_MAXIMUM_TOTAL_NODE_COUNT = "totalNodeCount > " + TruffleInliningMaxCallerSize.getValue(); public double calculateScore(TruffleInliningProfile profile) { return profile.getFrequency() / profile.getDeepNodeCount(); } public boolean isAllowed(TruffleInliningProfile profile, int currentBudgetLeft) { if (profile.isRecursiveCall()) { // recursive call found profile.setFailedReason(REASON_RECURSION); return false; } if (profile.isForced()) { return true; } if (currentBudgetLeft - profile.getDeepNodeCount() < 0) { profile.setFailedReason(REASON_MAXIMUM_TOTAL_NODE_COUNT); return false; } int cappedCallSites = Math.min(Math.max(profile.getCallSites(), 1), 10); if (profile.getDeepNodeCount() * cappedCallSites > TruffleInliningMaxCallerSize.getValue()) { profile.setFailedReason(REASON_MAXIMUM_NODE_COUNT); return false; } return true; } }