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8187443: Forest Consolidation: Move files to unified layout

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Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson 2017-09-12 19:03:39 +02:00
parent 270fe13182
commit 3789983e89
56923 changed files with 3 additions and 15727 deletions
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102
test/langtools/tools/javac/ConstFoldTest.java Normal file
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/*
* Copyright (c) 2014, 2016, 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
* @bug 8025505
* @summary Constant folding deficiency
* @library /tools/lib
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* jdk.jdeps/com.sun.tools.javap
* @build toolbox.ToolBox toolbox.JavapTask
* @run main ConstFoldTest
*/
import java.net.URL;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
import toolbox.JavapTask;
import toolbox.Task;
import toolbox.ToolBox;
public class ConstFoldTest {
public static void main(String... args) throws Exception {
new ConstFoldTest().run();
}
// This is the test case. This class should end up
// as straight-line code with no conditionals
class CFTest {
void m() {
int x;
if (1 != 2) x=1; else x=0;
if (1 == 2) x=1; else x=0;
if ("" != null) x=1; else x=0;
if ("" == null) x=1; else x=0;
if (null == null) x=1; else x=0;
if (null != null) x=1; else x=0;
x = 1 != 2 ? 1 : 0;
x = 1 == 2 ? 1 : 0;
x = "" != null ? 1 : 0;
x = "" == null ? 1 : 0;
x = null == null ? 1 : 0;
x = null != null ? 1 : 0;
boolean b;
b = 1 != 2 && true;
b = 1 == 2 || true;
b = ("" != null) && true;
b = ("" == null) || true;
b = (null == null) && true;
b = (null != null) || true;
}
}
// All of the conditionals above should be eliminated.
// these if* bytecodes should not be seen
final String regex = "\\sif(?:null|nonnull|eq|ne){1}\\s";
void run() throws Exception {
ToolBox tb = new ToolBox();
URL url = ConstFoldTest.class.getResource("ConstFoldTest$CFTest.class");
Path file = Paths.get(url.toURI());
List<String> result = new JavapTask(tb)
.options("-c")
.classes(file.toString())
.run()
.write(Task.OutputKind.DIRECT)
.getOutputLines(Task.OutputKind.DIRECT);
List<String> bad_codes = tb.grep(regex, result);
if (!bad_codes.isEmpty()) {
for (String code : bad_codes)
System.out.println("Bad OpCode Found: " + code);
throw new Exception("constant folding failed");
}
}
}