| /* |
| * Copyright (c) 2015, 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 org.graalvm.compiler.core.test; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import org.graalvm.compiler.core.common.util.TypeConversion; |
| import org.graalvm.compiler.core.common.util.TypeReader; |
| import org.graalvm.compiler.core.common.util.TypeWriter; |
| import org.graalvm.compiler.core.common.util.UnsafeArrayTypeReader; |
| import org.graalvm.compiler.core.common.util.UnsafeArrayTypeWriter; |
| |
| public class TypeWriterTest extends GraalCompilerTest { |
| |
| private static void putValue(TypeWriter writer, long value) { |
| if (TypeConversion.isS1(value)) { |
| writer.putS1(value); |
| } |
| if (TypeConversion.isU1(value)) { |
| writer.putU1(value); |
| } |
| if (TypeConversion.isS2(value)) { |
| writer.putS2(value); |
| } |
| if (TypeConversion.isU2(value)) { |
| writer.putU2(value); |
| } |
| if (TypeConversion.isS4(value)) { |
| writer.putS4(value); |
| } |
| if (TypeConversion.isU4(value)) { |
| writer.putU4(value); |
| } |
| writer.putS8(value); |
| writer.putSV(value); |
| if (value >= 0) { |
| writer.putUV(value); |
| } |
| } |
| |
| private static void checkValue(TypeReader reader, long value) { |
| if (TypeConversion.isS1(value)) { |
| Assert.assertEquals(value, reader.getS1()); |
| } |
| if (TypeConversion.isU1(value)) { |
| Assert.assertEquals(value, reader.getU1()); |
| } |
| if (TypeConversion.isS2(value)) { |
| Assert.assertEquals(value, reader.getS2()); |
| } |
| if (TypeConversion.isU2(value)) { |
| Assert.assertEquals(value, reader.getU2()); |
| } |
| if (TypeConversion.isS4(value)) { |
| Assert.assertEquals(value, reader.getS4()); |
| } |
| if (TypeConversion.isU4(value)) { |
| Assert.assertEquals(value, reader.getU4()); |
| } |
| Assert.assertEquals(value, reader.getS8()); |
| Assert.assertEquals(value, reader.getSV()); |
| if (value >= 0) { |
| Assert.assertEquals(value, reader.getUV()); |
| } |
| } |
| |
| private static void putValues(TypeWriter writer) { |
| for (int i = 0; i < 64; i++) { |
| long value = 1L << i; |
| putValue(writer, value - 2); |
| putValue(writer, value - 1); |
| putValue(writer, value); |
| putValue(writer, value + 1); |
| putValue(writer, value + 2); |
| |
| putValue(writer, -value - 2); |
| putValue(writer, -value - 1); |
| putValue(writer, -value); |
| putValue(writer, -value + 1); |
| putValue(writer, -value + 2); |
| } |
| } |
| |
| private static void checkValues(TypeReader reader) { |
| for (int i = 0; i < 64; i++) { |
| long value = 1L << i; |
| checkValue(reader, value - 2); |
| checkValue(reader, value - 1); |
| checkValue(reader, value); |
| checkValue(reader, value + 1); |
| checkValue(reader, value + 2); |
| |
| checkValue(reader, -value - 2); |
| checkValue(reader, -value - 1); |
| checkValue(reader, -value); |
| checkValue(reader, -value + 1); |
| checkValue(reader, -value + 2); |
| } |
| } |
| |
| private static void test01(boolean supportsUnalignedMemoryAccess) { |
| UnsafeArrayTypeWriter writer = UnsafeArrayTypeWriter.create(supportsUnalignedMemoryAccess); |
| putValues(writer); |
| |
| byte[] array = new byte[(int) writer.getBytesWritten()]; |
| writer.toArray(array); |
| UnsafeArrayTypeReader reader = UnsafeArrayTypeReader.create(array, 0, supportsUnalignedMemoryAccess); |
| checkValues(reader); |
| } |
| |
| @Test |
| public void test01a() { |
| test01(getTarget().arch.supportsUnalignedMemoryAccess()); |
| } |
| |
| @Test |
| public void test01b() { |
| test01(false); |
| } |
| |
| private static void checkSignedSize(TypeWriter writer, long value, int expectedSize) { |
| long sizeBefore = writer.getBytesWritten(); |
| writer.putSV(value); |
| Assert.assertEquals(expectedSize, writer.getBytesWritten() - sizeBefore); |
| } |
| |
| private static void checkUnsignedSize(TypeWriter writer, long value, int expectedSize) { |
| long sizeBefore = writer.getBytesWritten(); |
| writer.putUV(value); |
| Assert.assertEquals(expectedSize, writer.getBytesWritten() - sizeBefore); |
| } |
| |
| private static void checkSizes(TypeWriter writer) { |
| checkSignedSize(writer, 0, 1); |
| checkSignedSize(writer, 63, 1); |
| checkSignedSize(writer, -64, 1); |
| checkSignedSize(writer, 64, 2); |
| checkSignedSize(writer, -65, 2); |
| checkSignedSize(writer, 8191, 2); |
| checkSignedSize(writer, -8192, 2); |
| checkSignedSize(writer, 8192, 3); |
| checkSignedSize(writer, -8193, 3); |
| checkSignedSize(writer, Long.MAX_VALUE, 10); |
| checkSignedSize(writer, Long.MIN_VALUE, 10); |
| |
| checkUnsignedSize(writer, 0, 1); |
| checkUnsignedSize(writer, 127, 1); |
| checkUnsignedSize(writer, 128, 2); |
| checkUnsignedSize(writer, 16383, 2); |
| checkUnsignedSize(writer, 16384, 3); |
| checkUnsignedSize(writer, Long.MAX_VALUE, 9); |
| } |
| |
| @Test |
| public void test02a() { |
| checkSizes(UnsafeArrayTypeWriter.create(getTarget().arch.supportsUnalignedMemoryAccess())); |
| } |
| |
| @Test |
| public void test02b() { |
| checkSizes(UnsafeArrayTypeWriter.create(false)); |
| } |
| } |