Mercurial > hg > graal-compiler
view graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/DefaultInliningPolicy.java @ 20942:a2e295c6cf7c
Truffle-DSL: fixed frame might be added twice for polymorphic signatures.
author | Christian Humer <christian.humer@gmail.com> |
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date | Tue, 14 Apr 2015 19:23:32 +0200 |
parents | e66a6f8d63e3 |
children | 05183a084a08 |
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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.*; import com.oracle.truffle.api.*; public class DefaultInliningPolicy implements TruffleInliningPolicy { private static final String REASON_RECURSION = "number of recursions > " + TruffleMaximumRecursiveInlining.getValue(); private static final String REASON_MAXIMUM_NODE_COUNT = "deepNodeCount * callSites > " + TruffleInliningMaxCallerSize.getValue(); private static final String REASON_MAXIMUM_TOTAL_NODE_COUNT = "totalNodeCount > " + TruffleInliningMaxCallerSize.getValue(); @Override public double calculateScore(TruffleInliningProfile profile) { return profile.getFrequency() / profile.getDeepNodeCount(); } @Override public boolean isAllowed(TruffleInliningProfile profile, int currentNodeCount, CompilerOptions options) { if (profile.getRecursions() > TruffleMaximumRecursiveInlining.getValue()) { profile.setFailedReason(REASON_RECURSION); return false; } int inliningMaxCallerSize = TruffleInliningMaxCallerSize.getValue(); if (options instanceof GraalCompilerOptions) { inliningMaxCallerSize = Math.max(inliningMaxCallerSize, ((GraalCompilerOptions) options).getMinInliningMaxCallerSize()); } if (currentNodeCount + profile.getDeepNodeCount() > inliningMaxCallerSize) { profile.setFailedReason(REASON_MAXIMUM_TOTAL_NODE_COUNT); return false; } if (profile.isForced()) { return true; } int cappedCallSites = Math.min(Math.max(profile.getCallSites(), 1), 10); if (profile.getDeepNodeCount() * cappedCallSites > inliningMaxCallerSize) { profile.setFailedReason(REASON_MAXIMUM_NODE_COUNT); return false; } return true; } }