141 lines
5.3 KiB
Java
141 lines
5.3 KiB
Java
/*
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* Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test IsMethodCompilableTest
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* @bug 8007270 8006683 8007288 8022832
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* @library /testlibrary /../../test/lib /testlibrary/com/oracle/java/testlibrary
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* @build IsMethodCompilableTest
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* @run main ClassFileInstaller sun.hotspot.WhiteBox
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* sun.hotspot.WhiteBox$WhiteBoxPermission
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* @run main ClassFileInstaller com.oracle.java.testlibrary.Platform
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* @run main/othervm/timeout=2400 -Xbootclasspath/a:. -Xmixed -XX:-TieredCompilation -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:PerMethodRecompilationCutoff=3 -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* IsMethodCompilableTest
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* @summary testing of WB::isMethodCompilable()
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* @author igor.ignatyev@oracle.com
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*/
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import com.oracle.java.testlibrary.Platform;
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public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
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/**
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* Value of {@code -XX:PerMethodRecompilationCutoff}
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*/
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protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
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static {
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long tmp = Long.parseLong(
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getVMOption("PerMethodRecompilationCutoff", "400"));
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if (tmp == -1) {
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PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
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} else {
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PER_METHOD_RECOMPILATION_CUTOFF = (0xFFFFFFFFL & tmp);
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}
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}
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public static void main(String[] args) throws Exception {
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CompilerWhiteBoxTest.main(IsMethodCompilableTest::new, args);
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}
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private IsMethodCompilableTest(TestCase testCase) {
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super(testCase);
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// to prevent inlining of #method
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WHITE_BOX.testSetDontInlineMethod(method, true);
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}
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/**
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* Tests {@code WB::isMethodCompilable()} by recompilation of tested method
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* 'PerMethodRecompilationCutoff' times and checks compilation status. Also
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* checks that WB::clearMethodState() clears no-compilable flags. Only
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* applicable to c2 compiled methods.
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*
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* @throws Exception if one of the checks fails.
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*/
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@Override
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protected void test() throws Exception {
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// Only c2 compilations can be disabled through PerMethodRecompilationCutoff
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if (!Platform.isServer()) {
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return;
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}
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if (skipXcompOSR()) {
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return;
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}
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if (!isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
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throw new RuntimeException(method + " must be compilable");
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}
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System.out.println("PerMethodRecompilationCutoff = "
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+ PER_METHOD_RECOMPILATION_CUTOFF);
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if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
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System.err.println(
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"Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
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return;
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}
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// deoptimize 'PerMethodRecompilationCutoff' times
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for (long attempts = 0, successes = 0;
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(successes < PER_METHOD_RECOMPILATION_CUTOFF) &&
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(attempts < PER_METHOD_RECOMPILATION_CUTOFF*2) &&
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isCompilable(COMP_LEVEL_FULL_OPTIMIZATION); attempts++) {
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if (compileAndDeoptimize() == COMP_LEVEL_FULL_OPTIMIZATION) {
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successes++;
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}
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}
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if (!testCase.isOsr() && !isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
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// in osr test case count of deopt maybe more than iterations
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throw new RuntimeException(method + " is not compilable after "
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+ PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
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}
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// Now compile once more
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compileAndDeoptimize();
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if (isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
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throw new RuntimeException(method + " is still compilable after "
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+ PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
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}
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checkNotCompiled();
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compile();
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waitBackgroundCompilation();
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checkNotCompiled(COMP_LEVEL_FULL_OPTIMIZATION);
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// WB.clearMethodState() must reset no-compilable flags
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WHITE_BOX.clearMethodState(method);
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if (!isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) {
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throw new RuntimeException(method
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+ " is not compilable after clearMethodState()");
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}
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compile();
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checkCompiled();
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}
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private int compileAndDeoptimize() throws Exception {
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compile();
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waitBackgroundCompilation();
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int compLevel = getCompLevel();
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deoptimize();
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return compLevel;
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}
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}
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