Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.tests/src/com/oracle/graal/compiler/tests/InvokeTest.java @ 5425:0364a2a874b8
changes towards a canonical representation of comparisons:
* new createNullCheckGuard helper method on CiLoweringTool
* replaced NullCheckNode with IsNullNode
* GuardNode and FixedGuardNode can be negated
* keep a list of conditions that are true/false in CheckCastEliminationPhase
* FixedGuardNode has only one condition
* GraphBuilderPhase creates canonical CompareNodes
* BooleanNodes can negate their usages
* added junit test for canonicalized compares
* removed junit test for negated instanceof
* added more thorough graph comparison for junit tests
* CheckCastEliminationPhase keeps track of conditions that are known to be true/false
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Tue, 22 May 2012 16:19:02 +0200 |
parents | a26b6248d398 |
children | 0083a59ced84 |
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/* * Copyright (c) 2011, 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.tests; import java.util.*; import org.junit.*; import com.oracle.graal.compiler.*; import com.oracle.graal.compiler.phases.*; import com.oracle.graal.nodes.*; /** * In the following tests, the usages of local variable "a" are replaced with the integer constant 0. * Then canonicalization is applied and it is verified that the resulting graph is equal to the * graph of the method that just has a "return 1" statement in it. */ public class InvokeTest extends GraphTest { private static final String REFERENCE_SNIPPET = "referenceSnippet"; public static int const1() { return 1; } public static int const7() { return 7; } @SuppressWarnings("all") public static int referenceSnippet() { return 7; } @Test public void test1() { test("test1Snippet"); } @SuppressWarnings("all") public static int test1Snippet() { return const7(); } @Test public void test2() { test("test2Snippet"); } @SuppressWarnings("all") public static int test2Snippet() { return const1() + const1() + const1() + const1() + const1() + const1() + const1(); } private void test(String snippet) { StructuredGraph graph = parse(snippet); Collection<Invoke> hints = new ArrayList<>(); for (Invoke invoke : graph.getInvokes()) { hints.add(invoke); } new InliningPhase(null, runtime(), hints, null, null, getDefaultPhasePlan(), OptimisticOptimizations.ALL).apply(graph); new CanonicalizerPhase(null, runtime(), null).apply(graph); new DeadCodeEliminationPhase().apply(graph); StructuredGraph referenceGraph = parse(REFERENCE_SNIPPET); assertEquals(referenceGraph, graph); } }