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comparison truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/profiles/IntValueProfileTest.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
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children 4ba1aa33fda4
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22500:fbe1eb7b4172 22501:a63bda98cfdb
1 /*
2 * Copyright (c) 2015, 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 IntValueProfileTest {
38
39 @DataPoint public static final int VALUE0 = Integer.MIN_VALUE;
40 @DataPoint public static final int VALUE1 = 0;
41 @DataPoint public static final int VALUE2 = 14;
42 @DataPoint public static final int VALUE3 = Integer.MAX_VALUE;
43
44 private IntValueProfile.Enabled profile;
45
46 @Before
47 public void create() {
48 profile = (IntValueProfile.Enabled) IntValueProfile.Enabled.create();
49 }
50
51 @Test
52 public void testInitial() {
53 assertThat(profile.isGeneric(), is(false));
54 assertThat(profile.isUninitialized(), is(true));
55 profile.toString(); // test that it is not crashing
56 }
57
58 @Theory
59 public void testProfileOneObject(int value) {
60 int result = profile.profile(value);
61
62 assertThat(result, is(value));
63 assertEquals(profile.getCachedValue(), value);
64 assertThat(profile.isUninitialized(), is(false));
65 profile.toString(); // test that it is not crashing
66 }
67
68 @Theory
69 public void testProfileTwoObject(int value0, int value1) {
70 int result0 = profile.profile(value0);
71 int result1 = profile.profile(value1);
72
73 assertThat(result0, is(value0));
74 assertThat(result1, is(value1));
75
76 if (value0 == value1) {
77 assertThat(profile.getCachedValue(), is(value0));
78 assertThat(profile.isGeneric(), is(false));
79 } else {
80 assertThat(profile.isGeneric(), is(true));
81 }
82 assertThat(profile.isUninitialized(), is(false));
83 profile.toString(); // test that it is not crashing
84 }
85
86 @Theory
87 public void testProfileThreeObject(int value0, int value1, int value2) {
88 int result0 = profile.profile(value0);
89 int result1 = profile.profile(value1);
90 int result2 = profile.profile(value2);
91
92 assertThat(result0, is(value0));
93 assertThat(result1, is(value1));
94 assertThat(result2, is(value2));
95
96 if (value0 == value1 && value1 == value2) {
97 assertThat(profile.getCachedValue(), is(value0));
98 assertThat(profile.isGeneric(), is(false));
99 } else {
100 assertThat(profile.isGeneric(), is(true));
101 }
102 assertThat(profile.isUninitialized(), is(false));
103 profile.toString(); // test that it is not crashing
104 }
105
106 @Test
107 public void testDisabled() {
108 IntValueProfile.Disabled p = (IntValueProfile.Disabled) IntValueProfile.Disabled.INSTANCE;
109 assertThat(p.profile(VALUE0), is(VALUE0));
110 assertThat(p.profile(VALUE1), is(VALUE1));
111 assertThat(p.profile(VALUE2), is(VALUE2));
112 assertThat(p.profile(VALUE3), is(VALUE3));
113 p.toString(); // test that it is not crashing
114 }
115
116 }