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/*
* Copyright (c) 2022, 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.
*/
/*
* @test PrintIdealPhaseTest
* @summary Checks that -XX:CompileCommand=PrintIdealPhase,... works
* @library /test/lib
* @modules java.base/jdk.internal.misc
* java.management
* @requires vm.debug == true & vm.compiler2.enabled & vm.compMode != "Xcomp"
* @run driver compiler.oracle.PrintIdealPhaseTest
*/
package compiler.oracle;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import jdk.test.lib.Asserts;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
public class PrintIdealPhaseTest {
public static void main(String[] args) throws Exception {
new PrintIdealPhaseTest();
}
PrintIdealPhaseTest() throws Exception {
// The Phases specified here will be exchanged for the enum Phase in compiler.lib.ir_framework when it's done
// Test -XX:CompileCommand=PrintIdealPhase,*::test,CCP1
List<String> expectedPhases = new ArrayList<String>();
expectedPhases.add("CCP1");
runTest("CCP1", expectedPhases, "hotspot_log_1.log", true);
runTest("FISH", expectedPhases, "hotspot_log_1f.log", false);
// Test -XX:CompileCommand=PrintIdealPhase,*::test,MATCHING
expectedPhases.clear();
expectedPhases.add("MATCHING");
runTest("MATCHING", expectedPhases, "hotspot_log_2.log", true);
// Test -XX:CompileCommand=PrintIdealPhase,*::test,CCP_1,AFTER_MATCHING
expectedPhases.add("CCP1");
runTest("MATCHING,CCP1", expectedPhases, "hotspot_log_3.log", true);
}
private void runTest(String cmdPhases, List<String> expectedPhases, String logFile, boolean valid) throws Exception {
List<String> options = new ArrayList<String>();
options.add("-Xbatch");
options.add("-XX:+PrintCompilation");
options.add("-XX:LogFile="+logFile);
options.add("-XX:+IgnoreUnrecognizedVMOptions");
options.add("-XX:CompileCommand=dontinline," + getTestClass() + "::test");
options.add("-XX:CompileCommand=PrintIdealPhase," + getTestClass() + "::test," + cmdPhases);
options.add(getTestClass());
OutputAnalyzer oa = ProcessTools.executeTestJava(options);
if (valid) {
oa.shouldHaveExitValue(0)
.shouldContain("CompileCommand: PrintIdealPhase compiler/oracle/PrintIdealPhaseTest$TestMain.test const char* PrintIdealPhase = '"+cmdPhases.replace(',', ' ')+"'")
.shouldNotContain("CompileCommand: An error occurred during parsing")
.shouldNotContain("Error: Unrecognized phase name in PrintIdealPhase:")
.shouldNotContain("# A fatal error has been detected by the Java Runtime Environment");
// Check that all the expected phases matches what can be found in the compilation log file
HashSet<String> loggedPhases = parseLogFile(logFile);
System.out.println("Logged phases:");
for (String loggedPhase : loggedPhases) {
System.out.println("loggedPhase: "+ loggedPhase);
}
for (String expectedPhase : expectedPhases) {
System.out.println("Looking for phase: " + expectedPhase);
Asserts.assertTrue(loggedPhases.contains(expectedPhase), "Must find specified phase: " + expectedPhase);
loggedPhases.remove(expectedPhase);
}
Asserts.assertTrue(loggedPhases.isEmpty(), "Expect no other phases");
} else {
// Check that we don't pass even though bad phase names where given
oa.shouldHaveExitValue(1)
.shouldContain("CompileCommand: An error occurred during parsing")
.shouldContain("Error: Unrecognized phase name in PrintIdealPhase:");
}
}
private HashSet<String> parseLogFile(String logFile) {
String printIdealTag = "<ideal";
Pattern compilePhasePattern = Pattern.compile("compile_phase='([a-zA-Z0-9 ]+)'");
HashSet<String> phasesFound = new HashSet<>();
try (var br = Files.newBufferedReader(Paths.get(logFile))) {
String line;
while ((line = br.readLine()) != null) {
if (line.startsWith(printIdealTag)) {
Matcher matcher = compilePhasePattern.matcher(line);
if (matcher.find()) {
phasesFound.add(matcher.group(1));
} else {
throw new Error("Failed to match compile_phase in file: " + logFile);
}
}
}
} catch (IOException e) {
throw new Error("Failed to read " + logFile + " data: " + e, e);
}
return phasesFound;
}
// Test class that is invoked by the sub process
public String getTestClass() {
return TestMain.class.getName();
}
public static class TestMain {
public static void main(String[] args) {
for (int i = 0; i < 20_000; i++) {
test(i);
}
}
static void test(int i) {
if ((i % 1000) == 0) {
System.out.println("Hello World!");
}
}
}
}
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