92 lines
3.4 KiB
Java
92 lines
3.4 KiB
Java
/*
|
|
* Copyright (c) 2020, 2023, 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.debug;
|
|
|
|
import jdk.test.lib.process.OutputAnalyzer;
|
|
import jdk.test.lib.process.ProcessTools;
|
|
import jdk.test.lib.Asserts;
|
|
|
|
/*
|
|
* @test
|
|
* @key stress randomness
|
|
* @bug 8253765
|
|
* @requires vm.debug == true & vm.compiler2.enabled
|
|
* @summary Tests that, when compiling with StressLCM or StressGCM, using the
|
|
* same seed yields the same code motion trace.
|
|
* @library /test/lib /
|
|
* @run driver compiler.debug.TestStressCM StressLCM
|
|
* @run driver compiler.debug.TestStressCM StressGCM
|
|
*/
|
|
|
|
public class TestStressCM {
|
|
|
|
static String cmTrace(String stressOpt, int stressSeed) throws Exception {
|
|
String className = TestStressCM.class.getName();
|
|
String[] procArgs = {
|
|
"-Xcomp", "-XX:-TieredCompilation", "-XX:-Inline",
|
|
"-XX:CompileOnly=" + className + "::sum",
|
|
"-XX:+TraceOptoPipelining", "-XX:+" + stressOpt,
|
|
"-XX:StressSeed=" + stressSeed, className, "10"};
|
|
ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(procArgs);
|
|
OutputAnalyzer out = new OutputAnalyzer(pb.start());
|
|
out.shouldHaveExitValue(0);
|
|
// Extract the trace of our method (the last one after those of all
|
|
// mandatory stubs such as _new_instance_Java, etc.).
|
|
String [] traces = out.getStdout().split("\\R");
|
|
int start = -1;
|
|
for (int i = traces.length - 1; i >= 0; i--) {
|
|
if (traces[i].contains("Start GlobalCodeMotion")) {
|
|
start = i;
|
|
break;
|
|
}
|
|
}
|
|
// We should have found the start of the trace.
|
|
Asserts.assertTrue(start >= 0,
|
|
"could not find the code motion trace");
|
|
String trace = "";
|
|
for (int i = start; i < traces.length; i++) {
|
|
trace += traces[i] + "\n";
|
|
}
|
|
return trace;
|
|
}
|
|
|
|
static void sum(int n) {
|
|
int acc = 0;
|
|
for (int i = 0; i < n; i++) acc += i;
|
|
System.out.println(acc);
|
|
}
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
if (args[0].startsWith("Stress")) {
|
|
String stressOpt = args[0];
|
|
for (int s = 0; s < 10; s++) {
|
|
Asserts.assertEQ(cmTrace(stressOpt, s), cmTrace(stressOpt, s),
|
|
"got different code motion traces for the same seed " + s);
|
|
}
|
|
} else if (args.length > 0) {
|
|
sum(Integer.parseInt(args[0]));
|
|
}
|
|
}
|
|
}
|