Mercurial > hg > graal-jvmci-8
diff graal/Compiler/src/com/sun/c1x/C1XTimers.java @ 2507:9ec15d6914ca
Pull over of compiler from maxine repository.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:43:22 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/Compiler/src/com/sun/c1x/C1XTimers.java Wed Apr 27 11:43:22 2011 +0200 @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2009, 2009, 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.sun.c1x; + +import com.sun.c1x.debug.*; + +/** + * This class contains timers that record the amount of time spent in various + * parts of the compiler. + * + * @author Christian Wimmer + */ +public enum C1XTimers { + HIR_CREATE("Create HIR"), + HIR_OPTIMIZE("Optimize HIR"), + NCE("Nullcheck elimination"), + LIR_CREATE("Create LIR"), + LIFETIME_ANALYSIS("Lifetime Analysis"), + LINEAR_SCAN("Linear Scan"), + RESOLUTION("Resolution"), + DEBUG_INFO("Create Debug Info"), + CODE_CREATE("Create Code"); + + private final String name; + private long start; + private long total; + + private C1XTimers(String name) { + this.name = name; + } + + public void start() { + start = System.nanoTime(); + } + + public void stop() { + total += System.nanoTime() - start; + } + + public static void reset() { + for (C1XTimers t : values()) { + t.total = 0; + } + } + + public static void print() { + long total = 0; + for (C1XTimers timer : C1XTimers.values()) { + total += timer.total; + } + if (total == 0) { + return; + } + + TTY.println(); + for (C1XTimers timer : C1XTimers.values()) { + TTY.println("%-20s: %7.4f s (%5.2f%%)", timer.name, timer.total / 1000000000.0, timer.total * 100.0 / total); + timer.total = 0; + } + TTY.println(); + } +}