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view graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/IntegerStampTest.java @ 11352:8185c119d731
"always set" bit mask on IntegerStamps
author | Lukas Stadler <lukas.stadler@jku.at> |
---|---|
date | Fri, 16 Aug 2013 13:15:42 +0200 |
parents | ef6915cf1e59 |
children | 307eec0f460f |
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/* * Copyright (c) 2012, 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.graal.compiler.test; import static org.junit.Assert.*; import org.junit.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.type.*; /** * This class tests that integer stamps are created correctly for constants. */ public class IntegerStampTest { private StructuredGraph graph; @Before public void before() { graph = new StructuredGraph(); } @Test public void testBooleanConstant() { assertEquals(new IntegerStamp(Kind.Int, 1, 1, 0x1, 0x1), ConstantNode.forBoolean(true, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, 0, 0, 0x0, 0x0), ConstantNode.forBoolean(false, graph).stamp()); } @Test public void testByteConstant() { assertEquals(new IntegerStamp(Kind.Int, 0, 0, 0x0, 0x0), ConstantNode.forByte((byte) 0, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, 16, 16, 0x10, 0x10), ConstantNode.forByte((byte) 16, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, -16, -16, 0xf0, 0xf0), ConstantNode.forByte((byte) -16, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, 127, 127, 0x7f, 0x7f), ConstantNode.forByte((byte) 127, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, -128, -128, 0x80, 0x80), ConstantNode.forByte((byte) -128, graph).stamp()); } @Test public void testShortConstant() { assertEquals(new IntegerStamp(Kind.Int, 0, 0, 0x0, 0x0), ConstantNode.forShort((short) 0, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, 128, 128, 0x80, 0x80), ConstantNode.forShort((short) 128, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, -128, -128, 0xff80, 0xff80), ConstantNode.forShort((short) -128, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, 32767, 32767, 0x7fff, 0x7fff), ConstantNode.forShort((short) 32767, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, -32768, -32768, 0x8000, 0x8000), ConstantNode.forShort((short) -32768, graph).stamp()); } @Test public void testCharConstant() { assertEquals(new IntegerStamp(Kind.Int, 0, 0, 0x0, 0x0), ConstantNode.forChar((char) 0, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, 'A', 'A', 'A', 'A'), ConstantNode.forChar('A', graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, 128, 128, 0x80, 0x80), ConstantNode.forChar((char) 128, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, 65535, 65535, 0xffff, 0xffff), ConstantNode.forChar((char) 65535, graph).stamp()); } @Test public void testIntConstant() { assertEquals(new IntegerStamp(Kind.Int, 0, 0, 0x0, 0x0), ConstantNode.forInt(0, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, 128, 128, 0x80, 0x80), ConstantNode.forInt(128, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, -128, -128, 0xffffff80L, 0xffffff80L), ConstantNode.forInt(-128, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, Integer.MAX_VALUE, Integer.MAX_VALUE, 0x7fffffff, 0x7fffffff), ConstantNode.forInt(Integer.MAX_VALUE, graph).stamp()); assertEquals(new IntegerStamp(Kind.Int, Integer.MIN_VALUE, Integer.MIN_VALUE, 0x80000000L, 0x80000000L), ConstantNode.forInt(Integer.MIN_VALUE, graph).stamp()); } @Test public void testLongConstant() { assertEquals(new IntegerStamp(Kind.Long, 0, 0, 0x0, 0x0), ConstantNode.forLong(0, graph).stamp()); assertEquals(new IntegerStamp(Kind.Long, 128, 128, 0x80, 0x80), ConstantNode.forLong(128, graph).stamp()); assertEquals(new IntegerStamp(Kind.Long, -128, -128, 0xffffffffffffff80L, 0xffffffffffffff80L), ConstantNode.forLong(-128, graph).stamp()); assertEquals(new IntegerStamp(Kind.Long, Long.MAX_VALUE, Long.MAX_VALUE, 0x7fffffffffffffffL, 0x7fffffffffffffffL), ConstantNode.forLong(Long.MAX_VALUE, graph).stamp()); assertEquals(new IntegerStamp(Kind.Long, Long.MIN_VALUE, Long.MIN_VALUE, 0x8000000000000000L, 0x8000000000000000L), ConstantNode.forLong(Long.MIN_VALUE, graph).stamp()); } @Test public void testPositiveRanges() { assertEquals(new IntegerStamp(Kind.Int, 0, 0, 0, 0), StampFactory.forInteger(Kind.Int, 0, 0)); assertEquals(new IntegerStamp(Kind.Int, 0, 1, 0, 1), StampFactory.forInteger(Kind.Int, 0, 1)); assertEquals(new IntegerStamp(Kind.Int, 0, 0x123, 0, 0x1ff), StampFactory.forInteger(Kind.Int, 0, 0x123)); assertEquals(new IntegerStamp(Kind.Int, 0x120, 0x123, 0x120, 0x123), StampFactory.forInteger(Kind.Int, 0x120, 0x123)); assertEquals(new IntegerStamp(Kind.Int, 10000, 15000, 0x2000, 0x3fff), StampFactory.forInteger(Kind.Int, 10000, 15000)); assertEquals(new IntegerStamp(Kind.Long, 0, 1, 0, 1), StampFactory.forInteger(Kind.Long, 0, 1)); assertEquals(new IntegerStamp(Kind.Long, 10000, 15000, 0x2000, 0x3fff), StampFactory.forInteger(Kind.Long, 10000, 15000)); assertEquals(new IntegerStamp(Kind.Long, 140000000000L, 150000000000L, 0x2000000000L, 0x23ffffffffL), StampFactory.forInteger(Kind.Long, 140000000000L, 150000000000L)); } @Test public void testNegativeRanges() { assertEquals(new IntegerStamp(Kind.Int, -2, -1, 0xfffffffeL, 0xffffffffL), StampFactory.forInteger(Kind.Int, -2, -1)); assertEquals(new IntegerStamp(Kind.Int, -20, -10, 0xffffffe0L, 0xffffffffL), StampFactory.forInteger(Kind.Int, -20, -10)); assertEquals(new IntegerStamp(Kind.Int, -10000, 0, 0, 0xffffffffL), StampFactory.forInteger(Kind.Int, -10000, 0)); assertEquals(new IntegerStamp(Kind.Int, -10000, -1, 0xffffc000L, 0xffffffffL), StampFactory.forInteger(Kind.Int, -10000, -1)); assertEquals(new IntegerStamp(Kind.Int, -10010, -10000, 0xffffd8e0L, 0xffffd8ffL), StampFactory.forInteger(Kind.Int, -10010, -10000)); assertEquals(new IntegerStamp(Kind.Long, -2, -1, 0xfffffffffffffffeL, 0xffffffffffffffffL), StampFactory.forInteger(Kind.Long, -2, -1)); assertEquals(new IntegerStamp(Kind.Long, -10010, -10000, 0xffffffffffffd8e0L, 0xffffffffffffd8ffL), StampFactory.forInteger(Kind.Long, -10010, -10000)); assertEquals(new IntegerStamp(Kind.Long, -150000000000L, -140000000000L, 0xffffffdc00000000L, 0xffffffdfffffffffL), StampFactory.forInteger(Kind.Long, -150000000000L, -140000000000L)); } @Test public void testMixedRanges() { assertEquals(new IntegerStamp(Kind.Int, -1, 0, 0, 0xffffffffL), StampFactory.forInteger(Kind.Int, -1, 0)); assertEquals(new IntegerStamp(Kind.Int, -10000, 1000, 0, 0xffffffffL), StampFactory.forInteger(Kind.Int, -10000, 1000)); assertEquals(new IntegerStamp(Kind.Long, -10000, 1000, 0, 0xffffffffffffffffL), StampFactory.forInteger(Kind.Long, -10000, 1000)); } @Test public void testNarrowingConversions() { // byte cases assertEquals(StampFactory.forInteger(Kind.Int, 0, 0), StampTool.intToByte(StampFactory.forInteger(Kind.Int, 0, 0))); assertEquals(StampFactory.forInteger(Kind.Int, 0, 10), StampTool.intToByte(StampFactory.forInteger(Kind.Int, 0, 10))); assertEquals(StampFactory.forInteger(Kind.Int, 10, 20), StampTool.intToByte(StampFactory.forInteger(Kind.Int, 10, 20))); assertEquals(StampFactory.forInteger(Kind.Int, -10, 0), StampTool.intToByte(StampFactory.forInteger(Kind.Int, -10, 0))); assertEquals(StampFactory.forInteger(Kind.Int, -20, -10), StampTool.intToByte(StampFactory.forInteger(Kind.Int, -20, -10))); assertEquals(StampFactory.forInteger(Kind.Int, Byte.MIN_VALUE, Byte.MAX_VALUE), StampTool.intToByte(StampFactory.forInteger(Kind.Int, 100, 200))); assertEquals(StampFactory.forInteger(Kind.Int, Byte.MIN_VALUE, Byte.MAX_VALUE), StampTool.intToByte(StampFactory.forInteger(Kind.Int, -100, 200))); assertEquals(StampFactory.forInteger(Kind.Int, Byte.MIN_VALUE, Byte.MAX_VALUE), StampTool.intToByte(StampFactory.forInteger(Kind.Int, -200, -100))); // char cases assertEquals(StampFactory.forInteger(Kind.Int, 0, 10), StampTool.intToChar(StampFactory.forInteger(Kind.Int, 0, 10))); assertEquals(StampFactory.forInteger(Kind.Int, 10, 20), StampTool.intToChar(StampFactory.forInteger(Kind.Int, 10, 20))); assertEquals(StampFactory.forInteger(Kind.Int, Character.MIN_VALUE, Character.MAX_VALUE), StampTool.intToChar(StampFactory.forInteger(Kind.Int, 20000, 80000))); assertEquals(StampFactory.forInteger(Kind.Int, Character.MIN_VALUE, Character.MAX_VALUE), StampTool.intToChar(StampFactory.forInteger(Kind.Int, -10000, 40000))); assertEquals(StampFactory.forInteger(Kind.Int, Character.MIN_VALUE, Character.MAX_VALUE), StampTool.intToChar(StampFactory.forInteger(Kind.Int, -40000, -10000))); // short cases assertEquals(StampFactory.forInteger(Kind.Int, 0, 10), StampTool.intToShort(StampFactory.forInteger(Kind.Int, 0, 10))); assertEquals(StampFactory.forInteger(Kind.Int, 10, 20), StampTool.intToShort(StampFactory.forInteger(Kind.Int, 10, 20))); assertEquals(StampFactory.forInteger(Kind.Int, Short.MIN_VALUE, Short.MAX_VALUE), StampTool.intToShort(StampFactory.forInteger(Kind.Int, 20000, 40000))); assertEquals(StampFactory.forInteger(Kind.Int, Short.MIN_VALUE, Short.MAX_VALUE), StampTool.intToShort(StampFactory.forInteger(Kind.Int, -10000, 40000))); assertEquals(StampFactory.forInteger(Kind.Int, Short.MIN_VALUE, Short.MAX_VALUE), StampTool.intToShort(StampFactory.forInteger(Kind.Int, -40000, -10000))); // int cases assertEquals(StampFactory.forInteger(Kind.Int, 0, 10), StampTool.longToInt(StampFactory.forInteger(Kind.Long, 0, 10))); assertEquals(StampFactory.forInteger(Kind.Int, 10, 20), StampTool.longToInt(StampFactory.forInteger(Kind.Long, 10, 20))); assertEquals(StampFactory.forInteger(Kind.Int, Integer.MIN_VALUE, Integer.MAX_VALUE), StampTool.longToInt(StampFactory.forInteger(Kind.Long, 20000000000L, 40000000000L))); assertEquals(StampFactory.forInteger(Kind.Int, Integer.MIN_VALUE, Integer.MAX_VALUE), StampTool.longToInt(StampFactory.forInteger(Kind.Long, -10000000000L, 40000000000L))); assertEquals(StampFactory.forInteger(Kind.Int, Integer.MIN_VALUE, Integer.MAX_VALUE), StampTool.longToInt(StampFactory.forInteger(Kind.Long, -40000000000L, -10000000000L))); } @Test public void testXor() { assertEquals(new IntegerStamp(Kind.Int, 0, 0xff, 0, 0xff), StampTool.xor(new IntegerStamp(Kind.Int, 0, 0, 0, 0), new IntegerStamp(Kind.Int, 0, 0xff, 0, 0xff))); assertEquals(new IntegerStamp(Kind.Int, 0x10, 0x1f, 0x10, 0x1f), StampTool.xor(new IntegerStamp(Kind.Int, 0, 0, 0, 0), new IntegerStamp(Kind.Int, 0x10, 0x1f, 0x10, 0x1f))); assertEquals(new IntegerStamp(Kind.Int, 0x0, 0xf, 0x0, 0xf), StampTool.xor(new IntegerStamp(Kind.Int, 0x10, 0x10, 0x10, 0x10), new IntegerStamp(Kind.Int, 0x10, 0x1f, 0x10, 0x1f))); assertEquals(new IntegerStamp(Kind.Int, 0x10, 0x1f, 0x10, 0x1f), StampTool.xor(new IntegerStamp(Kind.Int, 0x10, 0x10, 0x10, 0x10), new IntegerStamp(Kind.Int, 0x0, 0xf, 0x0, 0xf))); } @Test public void testNot() { assertEquals(new IntegerStamp(Kind.Int, -11, -1, 0xfffffff0L, 0xffffffffL), StampTool.not(new IntegerStamp(Kind.Int, 0, 10, 0, 0xf))); } @Test public void testAdd() { assertEquals(StampFactory.forInteger(Kind.Int, 0, 30), StampTool.add(StampFactory.forInteger(Kind.Int, 0, 10), StampFactory.forInteger(Kind.Int, 0, 20))); assertEquals(StampFactory.forKind(Kind.Long), StampTool.add(StampFactory.forInteger(Kind.Long, Long.MIN_VALUE, Long.MIN_VALUE + 1), StampFactory.forInteger(Kind.Long, Integer.MIN_VALUE, Integer.MAX_VALUE))); assertEquals(StampFactory.forInteger(Kind.Int, -2147483647, 31 - 2147483647), StampTool.add(StampFactory.forInteger(Kind.Int, 0, 31), StampFactory.forInteger(Kind.Int, -2147483647, -2147483647))); } }