1 /* 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8027631 27 * @summary profiling of arguments at calls cannot rely on signature of callee for types 28 * @run main/othervm -XX:-BackgroundCompilation -XX:TieredStopAtLevel=3 -XX:TypeProfileLevel=111 -XX:Tier3InvocationThreshold=200 -XX:Tier0InvokeNotifyFreqLog=7 TestUnexpectedProfilingMismatch 29 * 30 */ 31 32 import java.lang.invoke.*; 33 34 public class TestUnexpectedProfilingMismatch { 35 36 static class A { 37 } 38 39 static class B { 40 } 41 42 static void mA(A a) { 43 } 44 45 static void mB(B b) { 46 } 47 48 static final MethodHandle mhA; 49 static final MethodHandle mhB; 50 static { 51 MethodHandles.Lookup lookup = MethodHandles.lookup(); 52 MethodType mt = MethodType.methodType(void.class, A.class); 53 MethodHandle res = null; 54 try { 55 res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mA", mt); 56 } catch(NoSuchMethodException ex) { 57 } catch(IllegalAccessException ex) { 58 } 59 mhA = res; 60 mt = MethodType.methodType(void.class, B.class); 61 try { 62 res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mB", mt); 63 } catch(NoSuchMethodException ex) { 64 } catch(IllegalAccessException ex) { 65 } 66 mhB = res; 67 } 68 69 void m1(A a, boolean doit) throws Throwable { 70 if (doit) { 71 mhA.invoke(a); 72 } 73 } 74 75 void m2(B b) throws Throwable { 76 mhB.invoke(b); 77 } 78 79 static public void main(String[] args) { 80 TestUnexpectedProfilingMismatch tih = new TestUnexpectedProfilingMismatch(); 81 A a = new A(); 82 B b = new B(); 83 try { 84 for (int i = 0; i < 256 - 1; i++) { 85 tih.m1(a, true); 86 } 87 // Will trigger the compilation but will also run once 88 // more interpreted with a non null MDO which it will 89 // update. Make it skip the body of the method. 90 tih.m1(a, false); 91 // Compile this one as well and do the profiling 92 for (int i = 0; i < 256; i++) { 93 tih.m2(b); 94 } 95 // Will run and see a conflict 96 tih.m1(a, true); 97 } catch(Throwable ex) { 98 ex.printStackTrace(); 99 } 100 System.out.println("TEST PASSED"); 101 } 102 }