1/*
2 * Copyright (C) 2015-2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "AirBasicBlock.h"
28
29#if ENABLE(B3_JIT)
30
31#include "B3BasicBlockUtils.h"
32#include <wtf/ListDump.h>
33
34namespace JSC { namespace B3 { namespace Air {
35
36const char* const BasicBlock::dumpPrefix = "#";
37
38void BasicBlock::setSuccessors(FrequentedBlock target)
39{
40 m_successors.resize(1);
41 m_successors[0] = target;
42}
43
44void BasicBlock::setSuccessors(FrequentedBlock taken, FrequentedBlock notTaken)
45{
46 m_successors.resize(2);
47 m_successors[0] = taken;
48 m_successors[1] = notTaken;
49}
50
51bool BasicBlock::addPredecessor(BasicBlock* block)
52{
53 return B3::addPredecessor(this, block);
54}
55
56bool BasicBlock::removePredecessor(BasicBlock* block)
57{
58 return B3::removePredecessor(this, block);
59}
60
61bool BasicBlock::replacePredecessor(BasicBlock* from, BasicBlock* to)
62{
63 return B3::replacePredecessor(this, from, to);
64}
65
66void BasicBlock::dump(PrintStream& out) const
67{
68 out.print(dumpPrefix, m_index);
69}
70
71void BasicBlock::deepDump(PrintStream& out) const
72{
73 dumpHeader(out);
74 for (const Inst& inst : *this)
75 out.print(" ", inst, "\n");
76 dumpFooter(out);
77}
78
79void BasicBlock::dumpHeader(PrintStream& out) const
80{
81 out.print("BB", *this, ": ; frequency = ", m_frequency, "\n");
82 if (predecessors().size())
83 out.print(" Predecessors: ", pointerListDump(predecessors()), "\n");
84}
85
86void BasicBlock::dumpFooter(PrintStream& out) const
87{
88 if (successors().size())
89 out.print(" Successors: ", listDump(successors()), "\n");
90}
91
92BasicBlock::BasicBlock(unsigned index, double frequency)
93 : m_index(index)
94 , m_frequency(frequency)
95{
96}
97
98} } } // namespace JSC::B3::Air
99
100#endif // ENABLE(B3_JIT)
101