Mercurial > hg > truffle

annotate graal/com.oracle.graal.compiler.common/src/com/oracle/graal/compiler/common/cfg/DominatorOptimizationProblem.java @ 18163:c88ab4f1f04a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
author Doug Simon <doug.simon@oracle.com>
date Fri, 24 Oct 2014 16:18:10 +0200
parents 57da9b26a327
children 4d70d150944f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
16951
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
1 /*
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
2 * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
4 *
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
7 * published by the Free Software Foundation.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
8 *
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
13 * accompanied this code).
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
14 *
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
18 *
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
21 * questions.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
22 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
23 package com.oracle.graal.compiler.common.cfg;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
24
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
25 import java.util.*;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
26 import java.util.stream.*;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
27
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
28 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
29 * This class represents a dominator tree problem, i.e. a problem which can be solved by traversing
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
30 * the dominator (sub-)tree.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
31 *
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
32 * @param <E> An enum that describes the flags that can be associated with a block.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
33 * @param <C> An arbitrary cost type that is associated with a block. It is intended to carry
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
34 * information needed to calculate the solution. Note that {@code C} should not contain
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
35 * boolean flags. Use an enum entry in {@code E} instead.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
36 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
37 public abstract class DominatorOptimizationProblem<E extends Enum<E>, C> {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
38
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
39 private List<? extends AbstractBlock<?>> blocks;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
40 private EnumMap<E, BitSet> flags;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
41 private BlockMap<C> costs;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
42
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
43 protected DominatorOptimizationProblem(Class<E> flagType, AbstractControlFlowGraph<?> cfg) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
44 this.blocks = cfg.getBlocks();
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
45 flags = new EnumMap<>(flagType);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
46 costs = new BlockMap<>(cfg);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
47 assert verify(blocks);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
48 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
49
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
50 private static boolean verify(List<? extends AbstractBlock<?>> blocks) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
51 for (int i = 0; i < blocks.size(); i++) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
52 AbstractBlock<?> block = blocks.get(i);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
53 if (i != block.getId()) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
54 assert false : String.format("Id index mismatch @ %d vs. %s.getId()==%d", i, block, block.getId());
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
55 return false;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
56 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
57 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
58 return true;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
59 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
60
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
61 public final List<? extends AbstractBlock<?>> getBlocks() {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
62 return blocks;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
63 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
64
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
65 public final AbstractBlock<?> getBlockForId(int id) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
66 AbstractBlock<?> block = blocks.get(id);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
67 assert block.getId() == id : "wrong block-to-id mapping";
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
68 return block;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
69 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
70
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
71 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
72 * Sets a flag for a block.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
73 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
74 public final void set(E flag, AbstractBlock<?> block) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
75 BitSet bitSet = flags.get(flag);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
76 if (bitSet == null) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
77 bitSet = new BitSet(blocks.size());
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
78 flags.put(flag, bitSet);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
79 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
80 bitSet.set(block.getId());
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
81 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
82
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
83 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
84 * Checks whether a flag is set for a block.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
85 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
86 public final boolean get(E flag, AbstractBlock<?> block) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
87 BitSet bitSet = flags.get(flag);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
88 return bitSet == null ? false : bitSet.get(block.getId());
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
89 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
90
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
91 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
92 * Returns a {@linkplain Stream} of blocks for which {@code flag} is set.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
93 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
94 public final Stream<? extends AbstractBlock<?>> stream(E flag) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
95 return getBlocks().stream().filter(block -> get(flag, block));
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
96 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
97
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
98 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
99 * Returns the cost object associated with {@code block}. Might return {@code null} if not set.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
100 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
101 public final C getCost(AbstractBlock<?> block) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
102 C cost = costs.get(block);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
103 return cost;
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
104 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
105
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
106 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
107 * Sets the cost for a {@code block}.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
108 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
109 public final void setCost(AbstractBlock<?> block, C cost) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
110 costs.put(block, cost);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
111 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
112
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
113 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
114 * Sets {@code flag} for all blocks along the dominator path from {@code block} to the root
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
115 * until a block it finds a block where {@code flag} is already set.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
116 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
117 public final void setDominatorPath(E flag, AbstractBlock<?> block) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
118 BitSet bitSet = flags.get(flag);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
119 if (bitSet == null) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
120 bitSet = new BitSet(blocks.size());
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
121 flags.put(flag, bitSet);
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
122 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
123 for (AbstractBlock<?> b = block; b != null && !bitSet.get(b.getId()); b = b.getDominator()) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
124 // mark block
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
125 bitSet.set(b.getId());
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
126 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
127 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
128
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
129 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
130 * Returns a {@link Stream} of flags associated with {@code block}.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
131 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
132 public final Stream<E> getFlagsForBlock(AbstractBlock<?> block) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
133 return getFlags().stream().filter(flag -> get(flag, block));
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
134 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
135
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
136 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
137 * Returns the {@link Set} of flags that can be set for this
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
138 * {@linkplain DominatorOptimizationProblem problem}.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
139 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
140 public final Set<E> getFlags() {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
141 return flags.keySet();
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
142 }
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
143
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
144 /**
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
145 * Returns the name of a flag.
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
146 */
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
147 public String getName(E flag) {
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
148 return flag.toString();
57da9b26a327 Introduce DominatorOptimizationProblem.
Josef Eisl <josef.eisl@jku.at>
parents:
diff changeset
149 }
18163
c88ab4f1f04a re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
Doug Simon <doug.simon@oracle.com>
parents: 16951
diff changeset
150 }