1 /*
2 * Copyright (c) 2011, 2018, 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 /*
26 * @test
27 *
28 * @summary converted from VM Testbase vm/mlvm/meth/stress/compiler/inlineMHTarget.
29 * VM Testbase keywords: [feature_mlvm, nonconcurrent]
30 * VM Testbase readme:
31 * DESCRIPTION
32 * The test creates MH to short methods that are likely to be inlined and
33 * verifies that they are inlined into MH code correctly.
34 * See vm.mlvm.meth.stress.java.sequences.Test for details on MH sequences.
35 *
36 * @library /vmTestbase
37 * /test/lib
38 * @run driver jdk.test.lib.FileInstaller . .
39 *
40 * @comment build test class and indify classes
41 * @build vm.mlvm.meth.stress.compiler.inlineMHTarget.Test
42 * @run driver vm.mlvm.share.IndifiedClassesBuilder
43 *
44 * @run main/othervm vm.mlvm.meth.stress.compiler.inlineMHTarget.Test -stressIterationsFactor 100
45 */
46
47 package vm.mlvm.meth.stress.compiler.inlineMHTarget;
48
49 import java.lang.invoke.MethodHandle;
50 import java.lang.invoke.MethodHandles;
51 import java.lang.invoke.MethodHandles.Lookup;
52 import java.lang.invoke.MethodType;
53
54 import nsk.share.test.Stresser;
55 import vm.mlvm.share.Env;
56 import vm.mlvm.share.MlvmTest;
57
58 // TODO: check compilation using vm.mlvm.share.comp framework
59 // TODO: enhance to check NxN primitive types
60 public class Test extends MlvmTest {
61
62 private static final int ITERATIONS = 10000; // Should be enough to trigger compilation
63
64 private static final int THE_CONSTANT = 42;
65 private int field = 96;
66
67 static int i(int i) { return i; }
68 static int k(int i) { return THE_CONSTANT; }
69 int getter() { return this.field; }
70
71 int iplusk(int i) { return i(i) + k(i) + getter(); }
72
73 static int mh_iplusk(MethodHandle a, MethodHandle b, MethodHandle c, int i) throws Throwable {
74 return (int) a.invokeExact(i) + (int) b.invokeExact(i) + (int) c.invokeExact();
75 }
76
77 @Override
78 public boolean run() throws Throwable {
79 Lookup l = MethodHandles.lookup();
80 MethodHandle ipluskMH = l.findVirtual(
81 Test.class, "iplusk", MethodType.methodType(int.class, int.class)
82 ).bindTo(this);
83
84 MethodHandle iMH = MethodHandles.identity(int.class);
85 MethodHandle kMH = MethodHandles.dropArguments(MethodHandles.constant(int.class, THE_CONSTANT), 0, int.class);
86 MethodHandle getterMH = l.findGetter(Test.class, "field", int.class).bindTo(this);
87 MethodHandle mh_ipluskMH = MethodHandles.insertArguments(
88 l.findStatic(Test.class, "mh_iplusk", MethodType.methodType(int.class, MethodHandle.class, MethodHandle.class, MethodHandle.class, int.class)),
89 0, iMH, kMH, getterMH);
90
91 int mh1Result = 0, mh2Result = 0, directResult = 0;
92 Stresser s = createStresser();
93 s.start(1);
94 try {
95 while ( s.continueExecution() ) {
96 for (int i = 0; i < ITERATIONS; i++) {
97 s.iteration();
98 mh1Result += (int) ipluskMH.invokeExact(i);
99 mh2Result += (int) mh_ipluskMH.invokeExact(i);
100 directResult += iplusk(i);
101 }
102 }
103 } finally {
104 s.finish();
105 }
106
107 if (mh1Result != directResult || mh2Result != directResult) {
108 Env.complain("Sum computed using MH 1=" + mh1Result
109 + "; Sum computed using MH 2=" + mh2Result
110 + "; using direct calls=" + directResult);
111 return false;
112 }
113
114 return true;
115 }
116
117 public static void main(String[] args) {
118 MlvmTest.launch(args);
119 }
120 }