blob: ea55fc29cc843e2bb5441e6b0abea44193aaf332 (
plain) (
blame)
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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <cstring>
#include <type_traits>
#include <utility>
#include <vector>
#include <boost/container/small_vector.hpp>
#include <boost/intrusive/list.hpp>
#include "common/bit_cast.h"
#include "common/common_types.h"
#include "shader_recompiler/frontend/ir/opcodes.h"
#include "shader_recompiler/frontend/ir/type.h"
#include "shader_recompiler/frontend/ir/value.h"
namespace Shader::IR {
class Block;
struct AssociatedInsts;
class Inst : public boost::intrusive::list_base_hook<> {
public:
explicit Inst(Opcode op_, u32 flags_) noexcept;
~Inst();
Inst& operator=(const Inst&) = delete;
Inst(const Inst&) = delete;
Inst& operator=(Inst&&) = delete;
Inst(Inst&&) = delete;
/// Get the number of uses this instruction has.
[[nodiscard]] int UseCount() const noexcept {
return use_count;
}
/// Determines whether this instruction has uses or not.
[[nodiscard]] bool HasUses() const noexcept {
return use_count > 0;
}
/// Get the opcode this microinstruction represents.
[[nodiscard]] IR::Opcode GetOpcode() const noexcept {
return op;
}
/// Determines if there is a pseudo-operation associated with this instruction.
[[nodiscard]] bool HasAssociatedPseudoOperation() const noexcept {
return associated_insts != nullptr;
}
/// Determines whether or not this instruction may have side effects.
[[nodiscard]] bool MayHaveSideEffects() const noexcept;
/// Determines whether or not this instruction is a pseudo-instruction.
/// Pseudo-instructions depend on their parent instructions for their semantics.
[[nodiscard]] bool IsPseudoInstruction() const noexcept;
/// Determines if all arguments of this instruction are immediates.
[[nodiscard]] bool AreAllArgsImmediates() const;
/// Gets a pseudo-operation associated with this instruction
[[nodiscard]] Inst* GetAssociatedPseudoOperation(IR::Opcode opcode);
/// Get the type this instruction returns.
[[nodiscard]] IR::Type Type() const;
/// Get the number of arguments this instruction has.
[[nodiscard]] size_t NumArgs() const {
return op == Opcode::Phi ? phi_args.size() : NumArgsOf(op);
}
/// Get the value of a given argument index.
[[nodiscard]] Value Arg(size_t index) const noexcept {
if (op == Opcode::Phi) {
return phi_args[index].second;
} else {
return args[index];
}
}
/// Set the value of a given argument index.
void SetArg(size_t index, Value value);
/// Get a pointer to the block of a phi argument.
[[nodiscard]] Block* PhiBlock(size_t index) const;
/// Add phi operand to a phi instruction.
void AddPhiOperand(Block* predecessor, const Value& value);
void Invalidate();
void ClearArgs();
void ReplaceUsesWith(Value replacement);
void ReplaceOpcode(IR::Opcode opcode);
template <typename FlagsType>
requires(sizeof(FlagsType) <= sizeof(u32) && std::is_trivially_copyable_v<FlagsType>)
[[nodiscard]] FlagsType Flags() const noexcept {
FlagsType ret;
std::memcpy(reinterpret_cast<char*>(&ret), &flags, sizeof(ret));
return ret;
}
template <typename FlagsType>
requires(sizeof(FlagsType) <= sizeof(u32) && std::is_trivially_copyable_v<FlagsType>)
[[nodiscard]] void SetFlags(FlagsType value) noexcept {
std::memcpy(&flags, &value, sizeof(value));
}
/// Intrusively store the host definition of this instruction.
template <typename DefinitionType>
void SetDefinition(DefinitionType def) {
definition = Common::BitCast<u32>(def);
}
/// Return the intrusively stored host definition of this instruction.
template <typename DefinitionType>
[[nodiscard]] DefinitionType Definition() const noexcept {
return Common::BitCast<DefinitionType>(definition);
}
private:
struct NonTriviallyDummy {
NonTriviallyDummy() noexcept {}
};
void Use(const Value& value);
void UndoUse(const Value& value);
IR::Opcode op{};
int use_count{};
u32 flags{};
u32 definition{};
union {
NonTriviallyDummy dummy{};
boost::container::small_vector<std::pair<Block*, Value>, 2> phi_args;
std::array<Value, 5> args;
};
std::unique_ptr<AssociatedInsts> associated_insts;
};
static_assert(sizeof(Inst) <= 128, "Inst size unintentionally increased");
struct AssociatedInsts {
union {
Inst* in_bounds_inst;
Inst* sparse_inst;
Inst* zero_inst{};
};
Inst* sign_inst{};
Inst* carry_inst{};
Inst* overflow_inst{};
};
} // namespace Shader::IR
|
