Mercurial > hg > graal-compiler
view graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/CompareCanonicalizerTest.java @ 8125:0026a2e70695
Merge fixes.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 05 Mar 2013 23:58:57 +0100 |
parents | 961ad124cb21 |
children | 6d376d09880b |
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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.code.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.calc.*; import com.oracle.graal.phases.common.*; public class CompareCanonicalizerTest extends GraalCompilerTest { private StructuredGraph getCanonicalizedGraph(String name) { StructuredGraph graph = parse(name); new CanonicalizerPhase(runtime(), null).apply(graph); return graph; } private static ValueNode getResult(StructuredGraph graph) { assertTrue(graph.start().next() instanceof ReturnNode); ReturnNode ret = (ReturnNode) graph.start().next(); return ret.result(); } @Test public void testCanonicalComparison() { StructuredGraph referenceGraph = parse("referenceCanonicalComparison"); for (int i = 1; i < 4; i++) { StructuredGraph graph = parse("canonicalCompare" + i); assertEquals(referenceGraph, graph); } Assumptions assumptions = new Assumptions(false); new CanonicalizerPhase(runtime(), assumptions).apply(referenceGraph); for (int i = 1; i < 4; i++) { StructuredGraph graph = getCanonicalizedGraph("canonicalCompare" + i); assertEquals(referenceGraph, graph); } } public static int referenceCanonicalComparison(int a, int b) { if (a < b) { return 1; } else { return 2; } } public static int canonicalCompare1(int a, int b) { if (a >= b) { return 2; } else { return 1; } } public static int canonicalCompare2(int a, int b) { if (b > a) { return 1; } else { return 2; } } public static int canonicalCompare3(int a, int b) { if (b <= a) { return 2; } else { return 1; } } @Test public void testIntegerTest() { for (int i = 1; i <= 4; i++) { StructuredGraph graph = getCanonicalizedGraph("integerTest" + i); ValueNode result = getResult(graph); assertTrue(result instanceof ConditionalNode); ConditionalNode mat = (ConditionalNode) result; assertTrue(mat.condition() instanceof IntegerTestNode); IntegerTestNode test = (IntegerTestNode) mat.condition(); LocalNode local0 = graph.getLocal(0); LocalNode local1 = graph.getLocal(1); assertTrue((test.x() == local0 && test.y() == local1) || (test.x() == local1 && test.y() == local0)); } } public static boolean integerTest1(int x, int y) { return (x & y) == 0; } public static boolean integerTest2(long x, long y) { return 0 == (x & y); } public static boolean integerTest3(long x, long y) { int c = 5; return (c - 5) == (x & y); } public static boolean integerTest4(int x, int y) { int c = 10; return (x & y) == (10 - c); } @Test public void testIntegerTestCanonicalization() { ValueNode result = getResult(getCanonicalizedGraph("integerTestCanonicalization1")); assertTrue(result.isConstant() && result.asConstant().asLong() == 1); result = getResult(getCanonicalizedGraph("integerTestCanonicalization2")); assertTrue(result.isConstant() && result.asConstant().asLong() == 1); result = getResult(getCanonicalizedGraph("integerTestCanonicalization3")); assertTrue(result instanceof ConditionalNode); } public static int integerTestCanonicalization1(boolean b) { int x = b ? 128 : 256; if ((x & 8) == 0) { return 1; } else { return 2; } } public static int integerTestCanonicalization2(boolean b) { int x = b ? 128 : 256; int y = b ? 32 : 64; if ((x & y) == 0) { return 1; } else { return 2; } } public static int integerTestCanonicalization3(boolean b) { int x = b ? 128 : 64; int y = b ? 32 : 64; if ((x & y) == 0) { return 1; } else { return 2; } } }