Mercurial > hg > graal-compiler
view test/compiler/whitebox/IsMethodCompilableTest.java @ 21777:76c162c69c2f
Drop stamp information of OSR proxies in graph builder.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Mon, 08 Jun 2015 12:09:37 +0200 |
parents | 7848fc12602b |
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/* * 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 IsMethodCompilableTest * @bug 8007270 8006683 8007288 8022832 * @library /testlibrary /testlibrary/whitebox /testlibrary/com/oracle/java/testlibrary * @build IsMethodCompilableTest * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main ClassFileInstaller com.oracle.java.testlibrary.Platform * @run main/othervm/timeout=2400 -Xbootclasspath/a:. -Xmixed -XX:-TieredCompilation -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:PerMethodRecompilationCutoff=3 -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* IsMethodCompilableTest * @summary testing of WB::isMethodCompilable() * @author igor.ignatyev@oracle.com */ import com.oracle.java.testlibrary.Platform; public class IsMethodCompilableTest extends CompilerWhiteBoxTest { /** * Value of {@code -XX:PerMethodRecompilationCutoff} */ protected static final long PER_METHOD_RECOMPILATION_CUTOFF; static { long tmp = Long.parseLong( getVMOption("PerMethodRecompilationCutoff", "400")); if (tmp == -1) { PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */; } else { PER_METHOD_RECOMPILATION_CUTOFF = (0xFFFFFFFFL & tmp); } } public static void main(String[] args) throws Exception { CompilerWhiteBoxTest.main(IsMethodCompilableTest::new, args); } private IsMethodCompilableTest(TestCase testCase) { super(testCase); // to prevent inlining of #method WHITE_BOX.testSetDontInlineMethod(method, true); } /** * Tests {@code WB::isMethodCompilable()} by recompilation of tested method * 'PerMethodRecompilationCutoff' times and checks compilation status. Also * checks that WB::clearMethodState() clears no-compilable flags. Only * applicable to c2 compiled methods. * * @throws Exception if one of the checks fails. */ @Override protected void test() throws Exception { // Only c2 compilations can be disabled through PerMethodRecompilationCutoff if (!Platform.isServer()) { return; } if (skipXcompOSR()) { return; } if (!isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) { throw new RuntimeException(method + " must be compilable"); } System.out.println("PerMethodRecompilationCutoff = " + PER_METHOD_RECOMPILATION_CUTOFF); if (PER_METHOD_RECOMPILATION_CUTOFF == -1) { System.err.println( "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf"); return; } // deoptimize 'PerMethodRecompilationCutoff' times for (long attempts = 0, successes = 0; (successes < PER_METHOD_RECOMPILATION_CUTOFF) && (attempts < PER_METHOD_RECOMPILATION_CUTOFF*2) && isCompilable(COMP_LEVEL_FULL_OPTIMIZATION); attempts++) { if (compileAndDeoptimize() == COMP_LEVEL_FULL_OPTIMIZATION) { successes++; } } if (!testCase.isOsr() && !isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) { // in osr test case count of deopt maybe more than iterations throw new RuntimeException(method + " is not compilable after " + PER_METHOD_RECOMPILATION_CUTOFF + " iterations"); } // Now compile once more compileAndDeoptimize(); if (isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) { throw new RuntimeException(method + " is still compilable after " + PER_METHOD_RECOMPILATION_CUTOFF + " iterations"); } checkNotCompiled(); compile(); waitBackgroundCompilation(); checkNotCompiled(COMP_LEVEL_FULL_OPTIMIZATION); // WB.clearMethodState() must reset no-compilable flags WHITE_BOX.clearMethodState(method); if (!isCompilable(COMP_LEVEL_FULL_OPTIMIZATION)) { throw new RuntimeException(method + " is not compilable after clearMethodState()"); } compile(); checkCompiled(); } private int compileAndDeoptimize() throws Exception { compile(); waitBackgroundCompilation(); int compLevel = getCompLevel(); deoptimize(); return compLevel; } }