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/*
* Copyright (c) 2021, 2024, 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 compiler.ciReplay;
import jdk.test.lib.Asserts;
import jdk.test.whitebox.WhiteBox;
import jtreg.SkippedException;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public abstract class InliningBase extends DumpReplayBase {
public static final String LOG_FILE_NORMAL = "hotspot_normal.log";
public static final String LOG_FILE_REPLAY = "hotspot_replay.log";
protected final String[] commandLineReplay;
protected final List<String> commandLineNormal;
protected final Class<?> testClass;
protected InliningBase(Class<?> testClass) {
this.testClass = testClass;
commandLineNormal = new ArrayList<>(List.of("-XX:LogFile=" + LOG_FILE_NORMAL + "", "-XX:+LogCompilation", "-XX:-TieredCompilation",
"-XX:CompileCommand=exclude," + testClass.getName() + "::main",
"-XX:CompileCommand=option," + testClass.getName() + "::test,bool,PrintInlining,true"));
commandLineReplay = new String[]
{"-XX:LogFile=" + LOG_FILE_REPLAY, "-XX:+LogCompilation",
"-XX:CompileCommand=option," + testClass.getName() + "::test,bool,PrintInlining,true"};
}
protected void runTest() {
// The CiReplay tests don't work properly when CDS is disabled
boolean cdsEnabled = WhiteBox.getWhiteBox().isSharingEnabled();
if (!cdsEnabled) {
throw new SkippedException("CDS is not available for this JDK.");
}
runTest(commandLineNormal.toArray(new String[0]));
}
@Override
public String getTestClass() {
return testClass.getName();
}
@Override
public void cleanup() {
super.cleanup();
remove(LOG_FILE_NORMAL);
remove(LOG_FILE_REPLAY);
}
static class InlineEntry {
String klass;
String method;
String reason;
public InlineEntry(String klass, String method, String reason) {
this.klass = klass;
this.method = method;
this.reason = reason;
}
public boolean isNormalInline() {
return reason.startsWith("inline (hot)");
}
public boolean isForcedByReplay() {
return reason.startsWith("force inline by ciReplay");
}
public boolean isDisallowedByReplay() {
return reason.startsWith("failed to inline: disallowed by ciReplay");
}
public boolean isUnloadedSignatureClasses() {
return reason.startsWith("failed to inline: unloaded signature classes");
}
public boolean isForcedIncrementalInlineByReplay() {
return reason.startsWith("force (incremental) inline by ciReplay");
}
public boolean isForcedInline() {
return reason.startsWith("force inline by annotation");
}
public boolean isTooDeep() {
return reason.startsWith("failed to inline: inlining too deep");
}
@Override
public boolean equals(Object other) {
if (other == this) {
return true;
}
if (!(other instanceof InlineEntry)) {
return false;
}
InlineEntry e = (InlineEntry)other;
return klass.equals(e.klass) && method.equals(e.method);
}
public boolean compare(String klass, String method, boolean kind) {
return this.klass.equals(klass) && this.method.equals(method) && kind;
}
}
protected static List<InlineEntry> parseLogFile(String logFile, String rootMethod, String nmethodMatch, int inlineeCount) {
String nmethodStart = "<nmethod";
List<InlineEntry> inlinees = new ArrayList<>();
int foundLines = 0;
try (var br = Files.newBufferedReader(Paths.get(logFile))) {
String line;
boolean nmethodLine = false;
boolean inlinineLine = false;
while ((line = br.readLine()) != null) {
if (nmethodLine) {
// Ignore other entries which could be in between nmethod entry and inlining statements
if (line.startsWith(" ")) {
inlinineLine = true;
Pattern p = Pattern.compile("(\\S+)::(\\S+).*bytes\\)\s+(.*)");
Matcher matcher = p.matcher(line);
Asserts.assertTrue(matcher.find(), "must find inlinee method");
inlinees.add(new InlineEntry(matcher.group(1), matcher.group(2), matcher.group(3).trim()));
foundLines++;
} else if (inlinineLine) {
Asserts.assertEQ(foundLines, inlineeCount, "did not find all inlinees");
return inlinees;
}
} else {
nmethodLine = line.startsWith(nmethodStart) && line.contains(nmethodMatch);
if (nmethodLine) {
Asserts.assertTrue(line.contains(rootMethod), "should only dump inline information for " + rootMethod);
}
}
}
} catch (IOException e) {
throw new Error("Failed to read " + logFile + " data: " + e, e);
}
Asserts.fail("Should have found inlinees");
return inlinees;
}
protected void verifyLists(List<InlineEntry> inlineesNormal, List<InlineEntry> inlineesReplay, int expectedSize) {
if (!inlineesNormal.equals(inlineesReplay)) {
System.err.println("Normal entries:");
inlineesNormal.forEach(System.err::println);
System.err.println("Replay entries:");
inlineesReplay.forEach(System.err::println);
Asserts.fail("different inlining decision in normal run vs. replay run");
}
Asserts.assertEQ(expectedSize, inlineesNormal.size(), "unexpected number of inlinees found");
}
}
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