Mercurial > hg > truffle
view graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/LoopUnswitchTest.java @ 7064:8d16b9b2c51e
first part of refactoring the InliningPhase
added control-flow sensitive inlining
inlining requires an Assumption object so that HotSpot can keep track of the inlined methods
author | Christian Haeubl <haeubl@ssw.jku.at> |
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date | Thu, 22 Nov 2012 13:30:14 +0100 |
parents | ee651c726397 |
children | 3964f3d4eb18 |
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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.test; import org.junit.*; import com.oracle.graal.api.code.*; import com.oracle.graal.debug.*; import com.oracle.graal.graph.*; import com.oracle.graal.loop.phases.*; import com.oracle.graal.nodes.*; import com.oracle.graal.phases.common.*; public class LoopUnswitchTest extends GraalCompilerTest { @SuppressWarnings("all") public static int referenceSnippet1(int a) { int sum = 0; if (a > 2) { for (int i = 0; i < 1000; i++) { sum += 2; } } else { for (int i = 0; i < 1000; i++) { sum += a; } } return sum; } @SuppressWarnings("all") public static int test1Snippet(int a) { int sum = 0; for (int i = 0; i < 1000; i++) { if (a > 2) { sum += 2; } else { sum += a; } } return sum; } @Test public void test1() { test("test1Snippet", "referenceSnippet1"); } private void test(String snippet, String referenceSnippet) { final StructuredGraph graph = parse(snippet); final StructuredGraph referenceGraph = parse(referenceSnippet); new LoopTransformLowPhase().apply(graph); // Framestates create comparison problems for (Node stateSplit : graph.getNodes().filterInterface(StateSplit.class)) { ((StateSplit) stateSplit).setStateAfter(null); } for (Node stateSplit : referenceGraph.getNodes().filterInterface(StateSplit.class)) { ((StateSplit) stateSplit).setStateAfter(null); } Assumptions assumptions = new Assumptions(false); new CanonicalizerPhase(null, runtime(), assumptions).apply(graph); new CanonicalizerPhase(null, runtime(), assumptions).apply(referenceGraph); Debug.scope("Test", new DebugDumpScope("Test:" + snippet), new Runnable() { @Override public void run() { assertEquals(referenceGraph, graph); } }); } }