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
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/*
* Copyright (C) 2008 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.
*/
#ifndef MacroAssemblerX86_h
#define MacroAssemblerX86_h
#include <wtf/Platform.h>
#if ENABLE(ASSEMBLER) && PLATFORM(X86)
#include "MacroAssemblerX86Common.h"
namespace JSC {
class MacroAssemblerX86 : public MacroAssemblerX86Common {
public:
static const Scale ScalePtr = TimesFour;
using MacroAssemblerX86Common::add32;
using MacroAssemblerX86Common::sub32;
using MacroAssemblerX86Common::load32;
using MacroAssemblerX86Common::store32;
using MacroAssemblerX86Common::branch32;
using MacroAssemblerX86Common::call;
void add32(Imm32 imm, RegisterID src, RegisterID dest)
{
m_assembler.leal_mr(imm.m_value, src, dest);
}
void add32(Imm32 imm, AbsoluteAddress address)
{
m_assembler.addl_im(imm.m_value, address.m_ptr);
}
void sub32(Imm32 imm, AbsoluteAddress address)
{
m_assembler.subl_im(imm.m_value, address.m_ptr);
}
void load32(void* address, RegisterID dest)
{
m_assembler.movl_mr(address, dest);
}
void store32(Imm32 imm, void* address)
{
m_assembler.movl_i32m(imm.m_value, address);
}
Jump branch32(Condition cond, AbsoluteAddress left, RegisterID right)
{
m_assembler.cmpl_rm(right, left.m_ptr);
return Jump(m_assembler.jCC(cond));
}
Jump branch32(Condition cond, AbsoluteAddress left, Imm32 right)
{
m_assembler.cmpl_im(right.m_value, left.m_ptr);
return Jump(m_assembler.jCC(cond));
}
Call call()
{
return Call(m_assembler.call(), Call::Linkable);
}
Call tailRecursiveCall()
{
return Call::fromTailJump(jump());
}
Call makeTailRecursiveCall(Jump oldJump)
{
return Call::fromTailJump(oldJump);
}
Jump branchPtrWithPatch(Condition cond, RegisterID left, DataLabelPtr& dataLabel, ImmPtr initialRightValue = ImmPtr(0))
{
m_assembler.cmpl_ir_force32(initialRightValue.asIntptr(), left);
dataLabel = DataLabelPtr(this);
return Jump(m_assembler.jCC(cond));
}
Jump branchPtrWithPatch(Condition cond, Address left, DataLabelPtr& dataLabel, ImmPtr initialRightValue = ImmPtr(0))
{
m_assembler.cmpl_im_force32(initialRightValue.asIntptr(), left.offset, left.base);
dataLabel = DataLabelPtr(this);
return Jump(m_assembler.jCC(cond));
}
DataLabelPtr storePtrWithPatch(Address address)
{
m_assembler.movl_i32m(0, address.offset, address.base);
return DataLabelPtr(this);
}
};
} // namespace JSC
#endif // ENABLE(ASSEMBLER)
#endif // MacroAssemblerX86_h
|
