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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 THE COPYRIGHT
// OWNER 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 V8_CODEGEN_H_
#define V8_CODEGEN_H_
#include "code-stubs.h"
#include "runtime.h"
// Include the declaration of the architecture defined class CodeGenerator.
// The contract to the shared code is that the the CodeGenerator is a subclass
// of Visitor and that the following methods are available publicly:
// MakeCode
// MakeCodePrologue
// MakeCodeEpilogue
// masm
// frame
// script
// has_valid_frame
// SetFrame
// DeleteFrame
// allocator
// AddDeferred
// in_spilled_code
// set_in_spilled_code
// RecordPositions
//
// These methods are either used privately by the shared code or implemented as
// shared code:
// CodeGenerator
// ~CodeGenerator
// Generate
// ComputeLazyCompile
// BuildFunctionInfo
// ProcessDeclarations
// DeclareGlobals
// CheckForInlineRuntimeCall
// AnalyzeCondition
// CodeForFunctionPosition
// CodeForReturnPosition
// CodeForStatementPosition
// CodeForDoWhileConditionPosition
// CodeForSourcePosition
enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
#if V8_TARGET_ARCH_IA32
#include "ia32/codegen-ia32.h"
#elif V8_TARGET_ARCH_X64
#include "x64/codegen-x64.h"
#elif V8_TARGET_ARCH_A64
#include "a64/codegen-a64.h"
#elif V8_TARGET_ARCH_ARM
#include "arm/codegen-arm.h"
#elif V8_TARGET_ARCH_MIPS
#include "mips/codegen-mips.h"
#else
#error Unsupported target architecture.
#endif
namespace v8 {
namespace internal {
class CompilationInfo;
class CodeGenerator {
public:
// Printing of AST, etc. as requested by flags.
static void MakeCodePrologue(CompilationInfo* info, const char* kind);
// Allocate and install the code.
static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm,
Code::Flags flags,
CompilationInfo* info);
// Print the code after compiling it.
static void PrintCode(Handle<Code> code, CompilationInfo* info);
static bool ShouldGenerateLog(Isolate* isolate, Expression* type);
static bool RecordPositions(MacroAssembler* masm,
int pos,
bool right_here = false);
private:
DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
};
// Results of the library implementation of transcendental functions may differ
// from the one we use in our generated code. Therefore we use the same
// generated code both in runtime and compiled code.
typedef double (*UnaryMathFunction)(double x);
UnaryMathFunction CreateExpFunction();
UnaryMathFunction CreateSqrtFunction();
class ElementsTransitionGenerator : public AllStatic {
public:
// If |mode| is set to DONT_TRACK_ALLOCATION_SITE,
// |allocation_memento_found| may be NULL.
static void GenerateMapChangeElementsTransition(MacroAssembler* masm,
AllocationSiteMode mode,
Label* allocation_memento_found);
static void GenerateSmiToDouble(MacroAssembler* masm,
AllocationSiteMode mode,
Label* fail);
static void GenerateDoubleToObject(MacroAssembler* masm,
AllocationSiteMode mode,
Label* fail);
private:
DISALLOW_COPY_AND_ASSIGN(ElementsTransitionGenerator);
};
static const int kNumberDictionaryProbes = 4;
} } // namespace v8::internal
#endif // V8_CODEGEN_H_
|
