/* * Copyright (c) 2013, 2014, 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 * @library /testlibrary /testlibrary/whitebox * @build MakeMethodNotCompilableTest * @run main ClassFileInstaller sun.hotspot.WhiteBox * sun.hotspot.WhiteBox$WhiteBoxPermission * @run main/othervm/timeout=2400 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* MakeMethodNotCompilableTest * @summary testing of WB::makeMethodNotCompilable() * @author igor.ignatyev@oracle.com */ public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest { private int bci; public static void main(String[] args) throws Exception { CompilerWhiteBoxTest.main(MakeMethodNotCompilableTest::new, args); } 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() { compile(); checkCompiled(); int result = WHITE_BOX.getMethodEntryBci(method); deoptimize(); WHITE_BOX.clearMethodState(method); return result; } }