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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*
* Copyright (C) 2016 Apple Inc. All rights reserved.
* Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>.
*
* 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.
*/
#pragma once
#if ENABLE(JIT)
#include "CCallHelpers.h"
#include "SnippetReg.h"
#include "SnippetSlowPathCalls.h"
namespace JSC {
class SnippetParams {
WTF_MAKE_NONCOPYABLE(SnippetParams);
public:
virtual ~SnippetParams() { }
class Value {
public:
Value(SnippetReg reg)
: m_reg(reg)
{
}
Value(SnippetReg reg, JSValue value)
: m_reg(reg)
, m_value(value)
{
}
bool isGPR() const { return m_reg.isGPR(); }
bool isFPR() const { return m_reg.isFPR(); }
bool isJSValueRegs() const { return m_reg.isJSValueRegs(); }
GPRReg gpr() const { return m_reg.gpr(); }
FPRReg fpr() const { return m_reg.fpr(); }
JSValueRegs jsValueRegs() const { return m_reg.jsValueRegs(); }
SnippetReg reg() const
{
return m_reg;
}
JSValue value() const
{
return m_value;
}
private:
SnippetReg m_reg;
JSValue m_value;
};
unsigned size() const { return m_regs.size(); }
const Value& at(unsigned index) const { return m_regs[index]; }
const Value& operator[](unsigned index) const { return at(index); }
GPRReg gpScratch(unsigned index) const { return m_gpScratch[index]; }
FPRReg fpScratch(unsigned index) const { return m_fpScratch[index]; }
SnippetParams(VM& vm, Vector<Value>&& regs, Vector<GPRReg>&& gpScratch, Vector<FPRReg>&& fpScratch)
: m_vm(vm)
, m_regs(WTFMove(regs))
, m_gpScratch(WTFMove(gpScratch))
, m_fpScratch(WTFMove(fpScratch))
{
}
VM& vm() { return m_vm; }
template<typename FunctionType, typename ResultType, typename... Arguments>
void addSlowPathCall(CCallHelpers::JumpList from, CCallHelpers& jit, FunctionType function, ResultType result, Arguments... arguments)
{
addSlowPathCallImpl(from, jit, function, result, std::make_tuple(arguments...));
}
private:
#define JSC_DEFINE_CALL_OPERATIONS(OperationType, ResultType, ...) JS_EXPORT_PRIVATE virtual void addSlowPathCallImpl(CCallHelpers::JumpList, CCallHelpers&, OperationType, ResultType, std::tuple<__VA_ARGS__> args) = 0;
SNIPPET_SLOW_PATH_CALLS(JSC_DEFINE_CALL_OPERATIONS)
#undef JSC_DEFINE_CALL_OPERATIONS
VM& m_vm;
Vector<Value> m_regs;
Vector<GPRReg> m_gpScratch;
Vector<FPRReg> m_fpScratch;
};
}
#endif
|
