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comparison truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/profiles/IdentityValueProfileTest.java @ 22501:a63bda98cfdb

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Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
author Christian Humer <christian.humer@oracle.com>
date Wed, 16 Dec 2015 16:38:13 +0100
parents truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/utilities/IdentityValueProfileTest.java@b39b603e2a1e
children 4ba1aa33fda4
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22500:fbe1eb7b4172 22501:a63bda98cfdb
1 /*
2 * Copyright (c) 2014, 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 package com.oracle.truffle.api.profiles;
24
25 import static org.hamcrest.CoreMatchers.is;
26 import static org.junit.Assert.assertEquals;
27 import static org.junit.Assert.assertThat;
28
29 import org.junit.Before;
30 import org.junit.Test;
31 import org.junit.experimental.theories.DataPoint;
32 import org.junit.experimental.theories.Theories;
33 import org.junit.experimental.theories.Theory;
34 import org.junit.runner.RunWith;
35
36 @RunWith(Theories.class)
37 public class IdentityValueProfileTest {
38
39 @DataPoint public static final String O1 = new String();
40 @DataPoint public static final String O2 = O1;
41 @DataPoint public static final Object O3 = new Object();
42 @DataPoint public static final Integer O4 = new Integer(1);
43 @DataPoint public static final Integer O5 = null;
44
45 private ValueProfile.Identity profile;
46
47 @Before
48 public void create() {
49 profile = (ValueProfile.Identity) ValueProfile.Identity.create();
50 }
51
52 @Test
53 public void testInitial() throws Exception {
54 assertThat(profile.isGeneric(), is(false));
55 assertThat(profile.isUninitialized(), is(true));
56 profile.toString(); // test that it is not crashing
57 }
58
59 @Theory
60 public void testDisabled(Object value) {
61 ValueProfile.Disabled p = (ValueProfile.Disabled) ValueProfile.Disabled.INSTANCE;
62 assertThat(p.profile(value), is(value));
63 p.toString(); // test that it is not crashing
64 }
65
66 @Theory
67 public void testProfileOne(Object value) throws Exception {
68 Object result = profile.profile(value);
69
70 assertThat(result, is(value));
71 assertEquals(profile.getCachedValue(), value);
72 assertThat(profile.isUninitialized(), is(false));
73 profile.toString(); // test that it is not crashing
74 }
75
76 @Theory
77 public void testProfileTwo(Object value0, Object value1) throws Exception {
78 Object result0 = profile.profile(value0);
79 Object result1 = profile.profile(value1);
80
81 assertThat(result0, is(value0));
82 assertThat(result1, is(value1));
83
84 if (value0 == value1) {
85 assertThat(profile.getCachedValue(), is(value0));
86 assertThat(profile.isGeneric(), is(false));
87 } else {
88 assertThat(profile.isGeneric(), is(true));
89 }
90 assertThat(profile.isUninitialized(), is(false));
91 profile.toString(); // test that it is not crashing
92 }
93
94 @Theory
95 public void testProfileThree(Object value0, Object value1, Object value2) throws Exception {
96 Object result0 = profile.profile(value0);
97 Object result1 = profile.profile(value1);
98 Object result2 = profile.profile(value2);
99
100 assertThat(result0, is(value0));
101 assertThat(result1, is(value1));
102 assertThat(result2, is(value2));
103
104 if (value0 == value1 && value1 == value2) {
105 assertThat(profile.getCachedValue(), is(value0));
106 assertThat(profile.isGeneric(), is(false));
107 } else {
108 assertThat(profile.isGeneric(), is(true));
109 }
110 assertThat(profile.isUninitialized(), is(false));
111 profile.toString(); // test that it is not crashing
112 }
113
114 }