Mercurial > hg > truffle
diff graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/DefaultProfilingInfo.java @ 21556:48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 27 May 2015 00:36:16 +0200 |
parents | graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/DefaultProfilingInfo.java@cac0a7d1c325 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/DefaultProfilingInfo.java Wed May 27 00:36:16 2015 +0200 @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2012, 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.jvmci.meta; + +/** + * An implementation of {@link ProfilingInfo} that can used in the absence of real profile + * information. + */ +public final class DefaultProfilingInfo implements ProfilingInfo { + + private static final ProfilingInfo[] NO_PROFILING_INFO = new ProfilingInfo[]{new DefaultProfilingInfo(TriState.TRUE), new DefaultProfilingInfo(TriState.FALSE), + new DefaultProfilingInfo(TriState.UNKNOWN)}; + + private final TriState exceptionSeen; + + DefaultProfilingInfo(TriState exceptionSeen) { + this.exceptionSeen = exceptionSeen; + } + + @Override + public int getCodeSize() { + return 0; + } + + @Override + public JavaTypeProfile getTypeProfile(int bci) { + return null; + } + + @Override + public JavaMethodProfile getMethodProfile(int bci) { + return null; + } + + @Override + public double getBranchTakenProbability(int bci) { + return -1; + } + + @Override + public double[] getSwitchProbabilities(int bci) { + return null; + } + + @Override + public TriState getExceptionSeen(int bci) { + return exceptionSeen; + } + + @Override + public TriState getNullSeen(int bci) { + return TriState.UNKNOWN; + } + + @Override + public int getExecutionCount(int bci) { + return -1; + } + + public static ProfilingInfo get(TriState exceptionSeen) { + return NO_PROFILING_INFO[exceptionSeen.ordinal()]; + } + + @Override + public int getDeoptimizationCount(DeoptimizationReason reason) { + return 0; + } + + @Override + public boolean isMature() { + return false; + } + + @Override + public String toString() { + return "BaseProfilingInfo<" + this.toString(null, "; ") + ">"; + } + + public void setMature() { + // Do nothing + } + + public boolean setCompilerIRSize(Class<?> irType, int nodeCount) { + return false; + } + + public int getCompilerIRSize(Class<?> irType) { + return -1; + } +}