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 * 29 * @run main/othervm -XX:-BackgroundCompilation -XX:TieredStopAtLevel=3 -XX:TypeProfileLevel=111 30 * -XX:Tier3InvocationThreshold=200 -XX:Tier0InvokeNotifyFreqLog=7 31 * compiler.profiling.TestUnexpectedProfilingMismatch 32 */ 33 34 package compiler.profiling; 35 36 import java.lang.invoke.MethodHandle; 37 import java.lang.invoke.MethodHandles; 38 import java.lang.invoke.MethodType; 39 40 public class TestUnexpectedProfilingMismatch { 41 42 static class A { 43 } 44 45 static class B { 46 } 47 48 static void mA(A a) { 49 } 50 51 static void mB(B b) { 52 } 53 54 static final MethodHandle mhA; 55 static final MethodHandle mhB; 56 static { 57 MethodHandles.Lookup lookup = MethodHandles.lookup(); 58 MethodType mt = MethodType.methodType(void.class, A.class); 59 MethodHandle res = null; 60 try { 61 res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mA", mt); 62 } catch(NoSuchMethodException ex) { 63 } catch(IllegalAccessException ex) { 64 } 65 mhA = res; 66 mt = MethodType.methodType(void.class, B.class); 67 try { 68 res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mB", mt); 69 } catch(NoSuchMethodException ex) { 70 } catch(IllegalAccessException ex) { 71 } 72 mhB = res; 73 } 74 75 void m1(A a, boolean doit) throws Throwable { 76 if (doit) { 77 mhA.invoke(a); 78 } 79 } 80 81 void m2(B b) throws Throwable { 82 mhB.invoke(b); 83 } 84 85 static public void main(String[] args) { 86 TestUnexpectedProfilingMismatch tih = new TestUnexpectedProfilingMismatch(); 87 A a = new A(); 88 B b = new B(); 89 try { 90 for (int i = 0; i < 256 - 1; i++) { 91 tih.m1(a, true); 92 } 93 // Will trigger the compilation but will also run once 94 // more interpreted with a non null MDO which it will 95 // update. Make it skip the body of the method. 96 tih.m1(a, false); 97 // Compile this one as well and do the profiling 98 for (int i = 0; i < 256; i++) { 99 tih.m2(b); 100 } 101 // Will run and see a conflict 102 tih.m1(a, true); 103 } catch(Throwable ex) { 104 ex.printStackTrace(); 105 } 106 System.out.println("TEST PASSED"); 107 } 108 }