1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* Copyright (C) 2015-2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "AirInst.h"
#if ENABLE(B3_JIT)
#include "AirInstInlines.h"
#include <wtf/ListDump.h>
namespace JSC { namespace B3 { namespace Air {
bool Inst::hasEarlyDef()
{
if (kind.opcode == Patch && !extraEarlyClobberedRegs().isEmpty())
return true;
bool result = false;
forEachArg(
[&] (Arg&, Arg::Role role, Bank, Width) {
result |= Arg::isEarlyDef(role);
});
return result;
}
bool Inst::hasLateUseOrDef()
{
if (kind.opcode == Patch && !extraClobberedRegs().isEmpty())
return true;
bool result = false;
forEachArg(
[&] (Arg&, Arg::Role role, Bank, Width) {
result |= Arg::isLateUse(role) || Arg::isLateDef(role);
});
return result;
}
bool Inst::needsPadding(Inst* prevInst, Inst* nextInst)
{
bool result = prevInst && nextInst && prevInst->hasLateUseOrDef() && nextInst->hasEarlyDef();
return result;
}
bool Inst::hasArgEffects()
{
bool result = false;
forEachArg(
[&] (Arg&, Arg::Role role, Bank, Width) {
if (Arg::isAnyDef(role))
result = true;
});
return result;
}
unsigned Inst::jsHash() const
{
// FIXME: This should do something for flags.
// https://bugs.webkit.org/show_bug.cgi?id=162751
unsigned result = static_cast<unsigned>(kind.opcode);
for (const Arg& arg : args)
result += arg.jsHash();
return result;
}
void Inst::dump(PrintStream& out) const
{
out.print(kind, " ", listDump(args));
}
} } } // namespace JSC::B3::Air
#endif // ENABLE(B3_JIT)
|
