1 /*
2 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24
25 package org.graalvm.compiler.core.test;
26
27 import java.util.List;
28
29 import org.graalvm.compiler.core.common.cfg.BlockMap;
30 import org.graalvm.compiler.debug.DebugContext;
31 import org.graalvm.compiler.graph.Node;
32 import org.graalvm.compiler.graph.NodeMap;
33 import org.graalvm.compiler.nodes.BeginNode;
34 import org.graalvm.compiler.nodes.DeoptimizingNode.DeoptDuring;
35 import org.graalvm.compiler.nodes.FrameState;
36 import org.graalvm.compiler.nodes.ReturnNode;
37 import org.graalvm.compiler.nodes.StateSplit;
38 import org.graalvm.compiler.nodes.StructuredGraph;
39 import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
40 import org.graalvm.compiler.nodes.StructuredGraph.ScheduleResult;
41 import org.graalvm.compiler.nodes.calc.AddNode;
42 import org.graalvm.compiler.nodes.calc.BinaryArithmeticNode;
43 import org.graalvm.compiler.nodes.cfg.Block;
44 import org.graalvm.compiler.nodes.spi.CoreProviders;
45 import org.graalvm.compiler.nodes.spi.LoweringTool;
46 import org.graalvm.compiler.phases.OptimisticOptimizations;
47 import org.graalvm.compiler.phases.common.CanonicalizerPhase;
48 import org.graalvm.compiler.phases.common.FrameStateAssignmentPhase;
49 import org.graalvm.compiler.phases.common.GuardLoweringPhase;
50 import org.graalvm.compiler.phases.common.LoweringPhase;
51 import org.graalvm.compiler.phases.schedule.SchedulePhase;
52 import org.graalvm.compiler.phases.schedule.SchedulePhase.SchedulingStrategy;
53 import org.graalvm.compiler.phases.tiers.MidTierContext;
54 import org.junit.Test;
55
56 public class SchedulingTest2 extends GraphScheduleTest {
57
58 public static int testSnippet() {
59 return test() + 2;
60 }
61
62 public static int test() {
63 return 40;
64 }
65
66 @Test
67 public void testValueProxyInputs() {
68 StructuredGraph graph = parseEager("testSnippet", AllowAssumptions.YES);
69 DebugContext debug = graph.getDebug();
70 ReturnNode returnNode = graph.getNodes(ReturnNode.TYPE).first();
71 BeginNode beginNode = graph.add(new BeginNode());
72 returnNode.replaceAtPredecessor(beginNode);
73 beginNode.setNext(returnNode);
74 debug.dump(DebugContext.BASIC_LEVEL, graph, "Graph");
75 SchedulePhase schedulePhase = new SchedulePhase(SchedulingStrategy.EARLIEST_WITH_GUARD_ORDER);
76 schedulePhase.apply(graph);
77 ScheduleResult schedule = graph.getLastSchedule();
78 BlockMap<List<Node>> blockToNodesMap = schedule.getBlockToNodesMap();
79 NodeMap<Block> nodeToBlock = schedule.getNodeToBlockMap();
80 assertDeepEquals(2, schedule.getCFG().getBlocks().length);
81 for (BinaryArithmeticNode<?> node : graph.getNodes().filter(BinaryArithmeticNode.class)) {
82 if (node instanceof AddNode) {
83 assertTrue(node.toString() + " expected: " + nodeToBlock.get(beginNode) + " but was: " + nodeToBlock.get(node), nodeToBlock.get(node) != nodeToBlock.get(beginNode));
84 }
85 }
86
87 for (FrameState fs : graph.getNodes(FrameState.TYPE)) {
88 Block block = nodeToBlock.get(fs);
89 assertTrue(fs.toString(), block == schedule.getCFG().getStartBlock());
90 for (Node usage : fs.usages()) {
91 if (usage instanceof StateSplit && ((StateSplit) usage).stateAfter() == fs) {
92 assertTrue(usage.toString(), nodeToBlock.get(usage) == block);
93 if (usage != block.getBeginNode()) {
94 List<Node> map = blockToNodesMap.get(block);
95 assertTrue(map.indexOf(fs) + " < " + map.indexOf(usage), map.indexOf(fs) < map.indexOf(usage));
96 }
97 }
98 }
99 }
100
101 CoreProviders context = getProviders();
102 new LoweringPhase(new CanonicalizerPhase(), LoweringTool.StandardLoweringStage.HIGH_TIER).apply(graph, context);
103 new LoweringPhase(new CanonicalizerPhase(), LoweringTool.StandardLoweringStage.MID_TIER).apply(graph, context);
104 MidTierContext midContext = new MidTierContext(getProviders(), getTargetProvider(), OptimisticOptimizations.ALL, graph.getProfilingInfo());
105
106 new GuardLoweringPhase().apply(graph, midContext);
107 FrameStateAssignmentPhase phase = new FrameStateAssignmentPhase();
108 phase.apply(graph);
109
110 schedulePhase.apply(graph);
111 schedule = graph.getLastSchedule();
112 blockToNodesMap = schedule.getBlockToNodesMap();
113 nodeToBlock = schedule.getNodeToBlockMap();
114 for (FrameState fs : graph.getNodes(FrameState.TYPE)) {
115 Block block = nodeToBlock.get(fs);
116 assertTrue(fs.toString(), block == schedule.getCFG().getStartBlock());
117 for (Node usage : fs.usages()) {
118 if ((usage instanceof StateSplit && ((StateSplit) usage).stateAfter() == fs) || (usage instanceof DeoptDuring && ((DeoptDuring) usage).stateDuring() == fs)) {
119 assertTrue(usage.toString(), nodeToBlock.get(usage) == block);
120 if (usage != block.getBeginNode()) {
121 List<Node> map = blockToNodesMap.get(block);
122 assertTrue(map.indexOf(fs) + " < " + map.indexOf(usage), map.indexOf(fs) < map.indexOf(usage));
123 }
124 }
125 }
126 }
127 }
128 }