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
|
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/builtins/builtins-utils-gen.h"
#include "src/builtins/builtins.h"
#include "src/codegen/code-factory.h"
#include "src/codegen/code-stub-assembler.h"
#include "src/codegen/tnode.h"
#include "src/objects/objects-inl.h"
#include "src/objects/oddball.h"
namespace v8 {
namespace internal {
// ES6 section 7.1.3 ToNumber ( argument )
TF_BUILTIN(ToNumber, CodeStubAssembler) {
auto context = Parameter<Context>(Descriptor::kContext);
auto input = Parameter<Object>(Descriptor::kArgument);
Return(ToNumber(context, input));
}
TF_BUILTIN(ToBigInt, CodeStubAssembler) {
auto context = Parameter<Context>(Descriptor::kContext);
auto input = Parameter<Object>(Descriptor::kArgument);
Return(ToBigInt(context, input));
}
TF_BUILTIN(ToNumber_Baseline, CodeStubAssembler) {
auto input = Parameter<Object>(Descriptor::kArgument);
auto slot = UncheckedParameter<UintPtrT>(Descriptor::kSlot);
auto context = [this] { return LoadContextFromBaseline(); };
TVARIABLE(Smi, var_type_feedback);
TNode<Number> result = CAST(ToNumberOrNumeric(
context, input, &var_type_feedback, Object::Conversion::kToNumber));
auto feedback_vector = LoadFeedbackVectorFromBaseline();
UpdateFeedback(var_type_feedback.value(), feedback_vector, slot);
Return(result);
}
TF_BUILTIN(ToNumeric_Baseline, CodeStubAssembler) {
auto input = Parameter<Object>(Descriptor::kArgument);
auto slot = UncheckedParameter<UintPtrT>(Descriptor::kSlot);
auto context = [this] { return LoadContextFromBaseline(); };
TVARIABLE(Smi, var_type_feedback);
TNode<Numeric> result = ToNumberOrNumeric(context, input, &var_type_feedback,
Object::Conversion::kToNumeric);
auto feedback_vector = LoadFeedbackVectorFromBaseline();
UpdateFeedback(var_type_feedback.value(), feedback_vector, slot);
Return(result);
}
TF_BUILTIN(PlainPrimitiveToNumber, CodeStubAssembler) {
auto input = Parameter<Object>(Descriptor::kArgument);
Return(PlainPrimitiveToNumber(input));
}
// Like ToNumber, but also converts BigInts.
TF_BUILTIN(ToNumberConvertBigInt, CodeStubAssembler) {
auto context = Parameter<Context>(Descriptor::kContext);
auto input = Parameter<Object>(Descriptor::kArgument);
Return(ToNumber(context, input, BigIntHandling::kConvertToNumber));
}
TF_BUILTIN(ToBigIntConvertNumber, CodeStubAssembler) {
auto context = Parameter<Context>(Descriptor::kContext);
auto input = Parameter<Object>(Descriptor::kArgument);
Return(ToBigIntConvertNumber(context, input));
}
// ES6 section 7.1.2 ToBoolean ( argument )
// Requires parameter on stack so that it can be used as a continuation from a
// LAZY deopt.
TF_BUILTIN(ToBooleanLazyDeoptContinuation, CodeStubAssembler) {
auto value = Parameter<Object>(Descriptor::kArgument);
Label return_true(this), return_false(this);
BranchIfToBooleanIsTrue(value, &return_true, &return_false);
BIND(&return_true);
Return(TrueConstant());
BIND(&return_false);
Return(FalseConstant());
}
// Requires parameter on stack so that it can be used as a continuation from a
// LAZY deopt.
TF_BUILTIN(MathRoundContinuation, CodeStubAssembler) {
auto value = Parameter<Number>(Descriptor::kArgument);
Return(ChangeFloat64ToTagged(Float64Round(ChangeNumberToFloat64(value))));
}
// Requires parameter on stack so that it can be used as a continuation from a
// LAZY deopt.
TF_BUILTIN(MathFloorContinuation, CodeStubAssembler) {
auto value = Parameter<Number>(Descriptor::kArgument);
Return(ChangeFloat64ToTagged(Float64Floor(ChangeNumberToFloat64(value))));
}
// Requires parameter on stack so that it can be used as a continuation from a
// LAZY deopt.
TF_BUILTIN(MathCeilContinuation, CodeStubAssembler) {
auto value = Parameter<Number>(Descriptor::kArgument);
Return(ChangeFloat64ToTagged(Float64Ceil(ChangeNumberToFloat64(value))));
}
// ES6 section 12.5.5 typeof operator
TF_BUILTIN(Typeof, CodeStubAssembler) {
auto object = Parameter<Object>(Descriptor::kObject);
Return(Typeof(object));
}
} // namespace internal
} // namespace v8
|
