Mercurial > hg > truffle
diff truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/profiles/DoubleValueProfileTest.java @ 22501:a63bda98cfdb
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> |
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date | Wed, 16 Dec 2015 16:38:13 +0100 |
parents | |
children | 4ba1aa33fda4 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/profiles/DoubleValueProfileTest.java Wed Dec 16 16:38:13 2015 +0100 @@ -0,0 +1,122 @@ +/* + * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.truffle.api.profiles; + +import static org.hamcrest.CoreMatchers.is; +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertThat; + +import org.junit.Before; +import org.junit.Test; +import org.junit.experimental.theories.DataPoint; +import org.junit.experimental.theories.Theories; +import org.junit.experimental.theories.Theory; +import org.junit.runner.RunWith; + +@RunWith(Theories.class) +public class DoubleValueProfileTest { + + @DataPoint public static final double VALUE0 = Double.MIN_VALUE; + @DataPoint public static final double VALUE1 = -0.0f; + @DataPoint public static final double VALUE2 = +0.0f; + @DataPoint public static final double VALUE3 = 14.5f; + @DataPoint public static final double VALUE4 = Double.MAX_VALUE; + + private static final double FLOAT_DELTA = 0.00001f; + + private DoubleValueProfile.Enabled profile; + + @Before + public void create() { + profile = (DoubleValueProfile.Enabled) DoubleValueProfile.Enabled.create(); + } + + @Test + public void testInitial() { + assertThat(profile.isGeneric(), is(false)); + assertThat(profile.isUninitialized(), is(true)); + profile.toString(); // test that it is not crashing + } + + @Theory + public void testProfileOneFloat(double value) { + double result = profile.profile(value); + + assertThat(result, is(value)); + assertEquals(profile.getCachedValue(), value, FLOAT_DELTA); + assertThat(profile.isUninitialized(), is(false)); + profile.toString(); // test that it is not crashing + } + + @SuppressWarnings("deprecation") + @Theory + public void testProfileTwoFloat(double value0, double value1) { + double result0 = profile.profile(value0); + double result1 = profile.profile(value1); + + assertEquals(result0, value0, FLOAT_DELTA); + assertEquals(result1, value1, FLOAT_DELTA); + + if (PrimitiveValueProfile.exactCompare(value0, value1)) { + assertEquals(profile.getCachedValue(), value0, FLOAT_DELTA); + assertThat(profile.isGeneric(), is(false)); + } else { + assertThat(profile.isGeneric(), is(true)); + } + assertThat(profile.isUninitialized(), is(false)); + profile.toString(); // test that it is not crashing + } + + @SuppressWarnings("deprecation") + @Theory + public void testProfileThreeFloat(double value0, double value1, double value2) { + double result0 = profile.profile(value0); + double result1 = profile.profile(value1); + double result2 = profile.profile(value2); + + assertEquals(result0, value0, FLOAT_DELTA); + assertEquals(result1, value1, FLOAT_DELTA); + assertEquals(result2, value2, FLOAT_DELTA); + + if (PrimitiveValueProfile.exactCompare(value0, value1) && PrimitiveValueProfile.exactCompare(value1, value2)) { + assertEquals(profile.getCachedValue(), value0, FLOAT_DELTA); + assertThat(profile.isGeneric(), is(false)); + } else { + assertThat(profile.isGeneric(), is(true)); + } + assertThat(profile.isUninitialized(), is(false)); + profile.toString(); // test that it is not crashing + } + + @Test + public void testDisabled() { + DoubleValueProfile.Disabled p = (DoubleValueProfile.Disabled) DoubleValueProfile.Disabled.INSTANCE; + assertThat(p.profile(VALUE0), is(VALUE0)); + assertThat(p.profile(VALUE1), is(VALUE1)); + assertThat(p.profile(VALUE2), is(VALUE2)); + assertThat(p.profile(VALUE3), is(VALUE3)); + assertThat(p.profile(VALUE4), is(VALUE4)); + p.toString(); // test that it is not crashing + } + +}