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/*
* Copyright (c) 2013, 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 MakeMethodNotCompilableTest
* @bug 8012322 8006683 8007288 8022832
* @summary testing of WB::makeMethodNotCompilable()
* @library /test/lib /
* @modules java.base/jdk.internal.misc
* java.management
* @build sun.hotspot.WhiteBox
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI -Xmixed -XX:-UseCounterDecay
* compiler.whitebox.MakeMethodNotCompilableTest
*/
package compiler.whitebox;
public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest {
private int bci;
public static void main(String[] args) throws Exception {
String directive =
"[{ match:\"*SimpleTestCaseHelper.*\", BackgroundCompilation: false }, " +
" { match:\"*.*\", inline:\"-*SimpleTestCaseHelper.*\"}]";
if (WHITE_BOX.addCompilerDirective(directive) != 2) {
throw new RuntimeException("Could not add directive");
}
try {
CompilerWhiteBoxTest.main(MakeMethodNotCompilableTest::new, args);
} finally {
WHITE_BOX.removeCompilerDirective(2);
}
}
private MakeMethodNotCompilableTest(TestCase testCase) {
super(testCase);
// to prevent inlining of #method
WHITE_BOX.testSetDontInlineMethod(method, true);
}
/**
* Tests {@code WB::makeMethodNotCompilable()} by calling it before
* compilation and checking that method isn't compiled. Also
* checks that WB::clearMethodState() clears no-compilable flags. For
* tiered, additional checks for all available levels are conducted.
*
* @throws Exception if one of the checks fails.
*/
@Override
protected void test() throws Exception {
if (skipXcompOSR()) {
return;
}
checkNotCompiled();
if (!isCompilable()) {
throw new RuntimeException(method + " must be compilable");
}
bci = getBci();
if (TIERED_COMPILATION) {
final int tierLimit = TIERED_STOP_AT_LEVEL + 1;
for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
testTier(testedTier);
}
for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {
makeNotCompilable(testedTier);
if (isCompilable(testedTier)) {
throw new RuntimeException(method
+ " must be not compilable at level" + testedTier);
}
WHITE_BOX.enqueueMethodForCompilation(method, testedTier, bci);
checkNotCompiled();
if (!isCompilable()) {
System.out.println(method
+ " is not compilable after level " + testedTier);
}
}
} else {
compile();
checkCompiled();
int compLevel = getCompLevel();
deoptimize();
makeNotCompilable(compLevel);
if (isCompilable(COMP_LEVEL_ANY)) {
throw new RuntimeException(method
+ " must be not compilable at CompLevel::CompLevel_any,"
+ " after it is not compilable at " + compLevel);
}
WHITE_BOX.clearMethodState(method);
if (!isCompilable()) {
throw new RuntimeException(method
+ " is not compilable after clearMethodState()");
}
// nocompilable at opposite level must make no sense
int oppositeLevel;
if (isC1Compile(compLevel)) {
oppositeLevel = COMP_LEVEL_FULL_OPTIMIZATION;
} else {
oppositeLevel = COMP_LEVEL_SIMPLE;
}
makeNotCompilable(oppositeLevel);
if (!isCompilable(COMP_LEVEL_ANY)) {
throw new RuntimeException(method
+ " must be compilable at CompLevel::CompLevel_any,"
+ " even it is not compilable at opposite level ["
+ compLevel + "]");
}
if (!isCompilable(compLevel)) {
throw new RuntimeException(method
+ " must be compilable at level " + compLevel
+ ", even it is not compilable at opposite level ["
+ compLevel + "]");
}
}
// clearing after tiered/non-tiered tests
// WB.clearMethodState() must reset no-compilable flags
WHITE_BOX.clearMethodState(method);
if (!isCompilable()) {
throw new RuntimeException(method
+ " is not compilable after clearMethodState()");
}
// Make method not (OSR-)compilable (depending on testCase.isOsr())
makeNotCompilable();
if (isCompilable()) {
throw new RuntimeException(method + " must be not compilable");
}
// Try to (OSR-)compile method
compile();
// Method should not be (OSR-)compiled
checkNotCompiled(testCase.isOsr());
if (isCompilable()) {
throw new RuntimeException(method + " must be not compilable");
}
// WB.clearMethodState() must reset no-compilable flags
WHITE_BOX.clearMethodState(method);
if (!isCompilable()) {
throw new RuntimeException(method
+ " is not compilable after clearMethodState()");
}
compile();
checkCompiled();
}
// separately tests each tier
private void testTier(int testedTier) {
if (!isCompilable(testedTier)) {
throw new RuntimeException(method
+ " is not compilable on start");
}
makeNotCompilable(testedTier);
// tests for all other tiers
for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1;
anotherTier < tierLimit; ++anotherTier) {
boolean isCompilable = isCompilable(anotherTier);
if (sameCompile(testedTier, anotherTier)) {
if (isCompilable) {
throw new RuntimeException(method
+ " must be not compilable at level " + anotherTier
+ ", if it is not compilable at " + testedTier);
}
WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
checkNotCompiled();
} else {
if (!isCompilable) {
throw new RuntimeException(method
+ " must be compilable at level " + anotherTier
+ ", even if it is not compilable at "
+ testedTier);
}
WHITE_BOX.enqueueMethodForCompilation(method, anotherTier, bci);
checkCompiled();
deoptimize();
}
if (!isCompilable(COMP_LEVEL_ANY)) {
throw new RuntimeException(method
+ " must be compilable at 'CompLevel::CompLevel_any'"
+ ", if it is not compilable only at " + testedTier);
}
}
// clear state after test
WHITE_BOX.clearMethodState(method);
if (!isCompilable(testedTier)) {
throw new RuntimeException(method
+ " is not compilable after clearMethodState()");
}
}
private boolean sameCompile(int level1, int level2) {
if (level1 == level2) {
return true;
}
if (isC1Compile(level1) && isC1Compile(level2)) {
return true;
}
if (isC2Compile(level1) && isC2Compile(level2)) {
return true;
}
return false;
}
private int getBci() throws Exception {
compile();
checkCompiled();
int result = WHITE_BOX.getMethodEntryBci(method);
deoptimize();
WHITE_BOX.clearMethodState(method);
return result;
}
}
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