1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/compiler/whitebox/IsMethodCompilableTest.java Wed Feb 13 08:29:04 2013 -0800
1.3 @@ -0,0 +1,84 @@
1.4 +/*
1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test IsMethodCompilableTest
1.29 + * @bug 8007270
1.30 + * @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI CompilerWhiteBoxTest.java
1.31 + * @compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI IsMethodCompilableTest.java
1.32 + * @run main/othervm/timeout=600 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI IsMethodCompilableTest
1.33 + * @author igor.ignatyev@oracle.com
1.34 + */
1.35 +public class IsMethodCompilableTest extends CompilerWhiteBoxTest {
1.36 + protected static final long PER_METHOD_RECOMPILATION_CUTOFF;
1.37 +
1.38 + static {
1.39 + long tmp = Long.parseLong(
1.40 + getVMOption("PerMethodRecompilationCutoff", "400"));
1.41 + if (tmp == -1) {
1.42 + PER_METHOD_RECOMPILATION_CUTOFF = -1 /* Inf */;
1.43 + } else {
1.44 + PER_METHOD_RECOMPILATION_CUTOFF = 1 + (0xFFFFFFFFL & tmp);
1.45 + }
1.46 + }
1.47 +
1.48 + public static void main(String[] args) throws Exception {
1.49 + new IsMethodCompilableTest().runTest();
1.50 + }
1.51 +
1.52 + protected void test() throws Exception {
1.53 + if (!WHITE_BOX.isMethodCompilable(METHOD)) {
1.54 + throw new RuntimeException(METHOD + " must be compilable");
1.55 + }
1.56 + System.out.println("PerMethodRecompilationCutoff = "
1.57 + + PER_METHOD_RECOMPILATION_CUTOFF);
1.58 + if (PER_METHOD_RECOMPILATION_CUTOFF == -1) {
1.59 + System.err.println(
1.60 + "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
1.61 + return;
1.62 + }
1.63 + // to prevent inlining #method into #compile()
1.64 + WHITE_BOX.setDontInlineMethod(METHOD, true);
1.65 + boolean madeNotCompilable = false;
1.66 +
1.67 + for (long i = 0; i < PER_METHOD_RECOMPILATION_CUTOFF; ++i) {
1.68 + compile();
1.69 + waitBackgroundCompilation(METHOD);
1.70 + WHITE_BOX.deoptimizeMethod(METHOD);
1.71 + if (!WHITE_BOX.isMethodCompilable(METHOD)) {
1.72 + madeNotCompilable = true;
1.73 + break;
1.74 + }
1.75 + }
1.76 + if (!madeNotCompilable) {
1.77 + throw new RuntimeException(METHOD + " is still compilable after "
1.78 + + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
1.79 + }
1.80 + compile();
1.81 + if (WHITE_BOX.isMethodCompiled(METHOD)) {
1.82 + printInfo(METHOD);
1.83 + throw new RuntimeException(
1.84 + METHOD + " is not compilable but compiled");
1.85 + }
1.86 + }
1.87 +}
