| /* |
| * Copyright (c) 2013, 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 |
| * @bug 8027631 |
| * @summary profiling of arguments at calls cannot rely on signature of callee for types |
| * @run main/othervm -XX:-BackgroundCompilation -XX:TieredStopAtLevel=3 -XX:TypeProfileLevel=111 -XX:Tier3InvocationThreshold=200 -XX:Tier0InvokeNotifyFreqLog=7 TestUnexpectedProfilingMismatch |
| * |
| */ |
| |
| import java.lang.invoke.*; |
| |
| public class TestUnexpectedProfilingMismatch { |
| |
| static class A { |
| } |
| |
| static class B { |
| } |
| |
| static void mA(A a) { |
| } |
| |
| static void mB(B b) { |
| } |
| |
| static final MethodHandle mhA; |
| static final MethodHandle mhB; |
| static { |
| MethodHandles.Lookup lookup = MethodHandles.lookup(); |
| MethodType mt = MethodType.methodType(void.class, A.class); |
| MethodHandle res = null; |
| try { |
| res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mA", mt); |
| } catch(NoSuchMethodException ex) { |
| } catch(IllegalAccessException ex) { |
| } |
| mhA = res; |
| mt = MethodType.methodType(void.class, B.class); |
| try { |
| res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mB", mt); |
| } catch(NoSuchMethodException ex) { |
| } catch(IllegalAccessException ex) { |
| } |
| mhB = res; |
| } |
| |
| void m1(A a, boolean doit) throws Throwable { |
| if (doit) { |
| mhA.invoke(a); |
| } |
| } |
| |
| void m2(B b) throws Throwable { |
| mhB.invoke(b); |
| } |
| |
| static public void main(String[] args) { |
| TestUnexpectedProfilingMismatch tih = new TestUnexpectedProfilingMismatch(); |
| A a = new A(); |
| B b = new B(); |
| try { |
| for (int i = 0; i < 256 - 1; i++) { |
| tih.m1(a, true); |
| } |
| // Will trigger the compilation but will also run once |
| // more interpreted with a non null MDO which it will |
| // update. Make it skip the body of the method. |
| tih.m1(a, false); |
| // Compile this one as well and do the profiling |
| for (int i = 0; i < 256; i++) { |
| tih.m2(b); |
| } |
| // Will run and see a conflict |
| tih.m1(a, true); |
| } catch(Throwable ex) { |
| ex.printStackTrace(); |
| } |
| System.out.println("TEST PASSED"); |
| } |
| } |