132 lines
5.1 KiB
Java
132 lines
5.1 KiB
Java
/*
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* Copyright (c) 2013, 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 /testlibrary/whitebox
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* @build IsMethodCompilableTest
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* @run main ClassFileInstaller sun.hotspot.WhiteBox
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* @run main/othervm/timeout=2400 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -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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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 = 1 + (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.
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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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if (testCase.isOsr() && CompilerWhiteBoxTest.MODE.startsWith(
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"compiled ")) {
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System.err.printf("Warning: %s is not applicable in %s%n",
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testCase.name(), CompilerWhiteBoxTest.MODE);
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return;
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}
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if (!isCompilable()) {
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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 and clear state
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for (long i = 0L, n = PER_METHOD_RECOMPILATION_CUTOFF - 1; i < n; ++i) {
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compileAndDeoptimize();
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}
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if (!testCase.isOsr() && !isCompilable()) {
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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 - 1) + " iterations");
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}
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WHITE_BOX.clearMethodState(method);
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// deoptimize 'PerMethodRecompilationCutoff' + 1 times
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long i;
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for (i = 0L; i < PER_METHOD_RECOMPILATION_CUTOFF
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&& isCompilable(); ++i) {
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compileAndDeoptimize();
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}
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if (!testCase.isOsr() && i != PER_METHOD_RECOMPILATION_CUTOFF) {
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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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+ i + " iterations, but must only after "
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+ PER_METHOD_RECOMPILATION_CUTOFF);
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}
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if (isCompilable()) {
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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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compile();
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checkNotCompiled();
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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()) {
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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 void compileAndDeoptimize() throws Exception {
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compile();
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waitBackgroundCompilation();
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deoptimize();
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}
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}
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