Mercurial > hg > truffle
view truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/utilities/BranchProfile.java @ 22501:a63bda98cfdb
Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
author | Christian Humer <christian.humer@oracle.com> |
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date | Wed, 16 Dec 2015 16:38:13 +0100 |
parents | dc83cc1f94f2 |
children |
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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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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.truffle.api.utilities; import com.oracle.truffle.api.CompilerDirectives; import com.oracle.truffle.api.CompilerDirectives.CompilationFinal; import com.oracle.truffle.api.nodes.NodeCloneable; /** * @deprecated use {@link com.oracle.truffle.api.profiles.BranchProfile} instead */ @Deprecated public final class BranchProfile extends NodeCloneable { @CompilationFinal private boolean visited; private BranchProfile() { } public void enter() { if (!visited) { CompilerDirectives.transferToInterpreterAndInvalidate(); visited = true; } } public boolean isVisited() { return visited; } /** * @deprecated use {@link com.oracle.truffle.api.profiles.BranchProfile#create()} instead */ @Deprecated public static BranchProfile create() { return new BranchProfile(); } @Override public String toString() { return String.format("%s(%s)@%x", getClass().getSimpleName(), visited ? "visited" : "not-visited", hashCode()); } }