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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
//===-- BenchmarkResult.cpp -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "BenchmarkResult.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/FileOutputBuffer.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
// Defining YAML traits for IO.
namespace llvm {
namespace yaml {
// std::vector<llvm::MCInst> will be rendered as a list.
template <> struct SequenceElementTraits<llvm::MCInst> {
static const bool flow = false;
};
template <> struct ScalarTraits<llvm::MCInst> {
static void output(const llvm::MCInst &Value, void *Ctx,
llvm::raw_ostream &Out) {
assert(Ctx);
auto *Context = static_cast<const exegesis::BenchmarkResultContext *>(Ctx);
const StringRef Name = Context->getInstrName(Value.getOpcode());
assert(!Name.empty());
Out << Name;
}
static StringRef input(StringRef Scalar, void *Ctx, llvm::MCInst &Value) {
assert(Ctx);
auto *Context = static_cast<const exegesis::BenchmarkResultContext *>(Ctx);
const unsigned Opcode = Context->getInstrOpcode(Scalar);
if (Opcode == 0) {
return "Unable to parse instruction";
}
Value.setOpcode(Opcode);
return StringRef();
}
static QuotingType mustQuote(StringRef) { return QuotingType::Single; }
static const bool flow = true;
};
// std::vector<exegesis::Measure> will be rendered as a list.
template <> struct SequenceElementTraits<exegesis::BenchmarkMeasure> {
static const bool flow = false;
};
// exegesis::Measure is rendererd as a flow instead of a list.
// e.g. { "key": "the key", "value": 0123 }
template <> struct MappingTraits<exegesis::BenchmarkMeasure> {
static void mapping(IO &Io, exegesis::BenchmarkMeasure &Obj) {
Io.mapRequired("key", Obj.Key);
Io.mapRequired("value", Obj.Value);
Io.mapOptional("debug_string", Obj.DebugString);
}
static const bool flow = true;
};
template <>
struct ScalarEnumerationTraits<exegesis::InstructionBenchmark::ModeE> {
static void enumeration(IO &Io,
exegesis::InstructionBenchmark::ModeE &Value) {
Io.enumCase(Value, "", exegesis::InstructionBenchmark::Unknown);
Io.enumCase(Value, "latency", exegesis::InstructionBenchmark::Latency);
Io.enumCase(Value, "uops", exegesis::InstructionBenchmark::Uops);
}
};
template <> struct MappingTraits<exegesis::InstructionBenchmarkKey> {
static void mapping(IO &Io, exegesis::InstructionBenchmarkKey &Obj) {
Io.mapRequired("opcode_name", Obj.OpcodeName);
Io.mapOptional("instructions", Obj.Instructions);
Io.mapOptional("config", Obj.Config);
}
};
template <> struct MappingTraits<exegesis::InstructionBenchmark> {
static void mapping(IO &Io, exegesis::InstructionBenchmark &Obj) {
Io.mapRequired("mode", Obj.Mode);
Io.mapRequired("key", Obj.Key);
Io.mapRequired("cpu_name", Obj.CpuName);
Io.mapRequired("llvm_triple", Obj.LLVMTriple);
Io.mapRequired("num_repetitions", Obj.NumRepetitions);
Io.mapRequired("measurements", Obj.Measurements);
Io.mapRequired("error", Obj.Error);
Io.mapOptional("info", Obj.Info);
}
};
} // namespace yaml
} // namespace llvm
LLVM_YAML_IS_DOCUMENT_LIST_VECTOR(exegesis::InstructionBenchmark)
namespace exegesis {
void BenchmarkResultContext::addRegEntry(unsigned RegNo, llvm::StringRef Name) {
assert(RegNoToName.find(RegNo) == RegNoToName.end());
assert(RegNameToNo.find(Name) == RegNameToNo.end());
RegNoToName[RegNo] = Name;
RegNameToNo[Name] = RegNo;
}
llvm::StringRef BenchmarkResultContext::getRegName(unsigned RegNo) const {
const auto Itr = RegNoToName.find(RegNo);
if (Itr != RegNoToName.end())
return Itr->second;
return {};
}
unsigned BenchmarkResultContext::getRegNo(llvm::StringRef Name) const {
const auto Itr = RegNameToNo.find(Name);
if (Itr != RegNameToNo.end())
return Itr->second;
return 0;
}
void BenchmarkResultContext::addInstrEntry(unsigned Opcode,
llvm::StringRef Name) {
assert(InstrOpcodeToName.find(Opcode) == InstrOpcodeToName.end());
assert(InstrNameToOpcode.find(Name) == InstrNameToOpcode.end());
InstrOpcodeToName[Opcode] = Name;
InstrNameToOpcode[Name] = Opcode;
}
llvm::StringRef BenchmarkResultContext::getInstrName(unsigned Opcode) const {
const auto Itr = InstrOpcodeToName.find(Opcode);
if (Itr != InstrOpcodeToName.end())
return Itr->second;
return {};
}
unsigned BenchmarkResultContext::getInstrOpcode(llvm::StringRef Name) const {
const auto Itr = InstrNameToOpcode.find(Name);
if (Itr != InstrNameToOpcode.end())
return Itr->second;
return 0;
}
template <typename ObjectOrList>
static ObjectOrList readYamlOrDieCommon(const BenchmarkResultContext &Context,
llvm::StringRef Filename) {
std::unique_ptr<llvm::MemoryBuffer> MemBuffer = llvm::cantFail(
llvm::errorOrToExpected(llvm::MemoryBuffer::getFile(Filename)));
// YAML IO requires a mutable pointer to Context but we guarantee to not
// modify it.
llvm::yaml::Input Yin(*MemBuffer,
const_cast<BenchmarkResultContext *>(&Context));
ObjectOrList Benchmark;
Yin >> Benchmark;
return Benchmark;
}
InstructionBenchmark
InstructionBenchmark::readYamlOrDie(const BenchmarkResultContext &Context,
llvm::StringRef Filename) {
return readYamlOrDieCommon<InstructionBenchmark>(Context, Filename);
}
std::vector<InstructionBenchmark>
InstructionBenchmark::readYamlsOrDie(const BenchmarkResultContext &Context,
llvm::StringRef Filename) {
return readYamlOrDieCommon<std::vector<InstructionBenchmark>>(Context,
Filename);
}
void InstructionBenchmark::writeYamlTo(const BenchmarkResultContext &Context,
llvm::raw_ostream &S) {
// YAML IO requires a mutable pointer to Context but we guarantee to not
// modify it.
llvm::yaml::Output Yout(S, const_cast<BenchmarkResultContext *>(&Context));
Yout << *this;
}
void InstructionBenchmark::readYamlFrom(const BenchmarkResultContext &Context,
llvm::StringRef InputContent) {
// YAML IO requires a mutable pointer to Context but we guarantee to not
// modify it.
llvm::yaml::Input Yin(InputContent,
const_cast<BenchmarkResultContext *>(&Context));
Yin >> *this;
}
// FIXME: Change the API to let the caller handle errors.
void InstructionBenchmark::writeYamlOrDie(const BenchmarkResultContext &Context,
const llvm::StringRef Filename) {
if (Filename == "-") {
writeYamlTo(Context, llvm::outs());
} else {
int ResultFD = 0;
llvm::cantFail(llvm::errorCodeToError(
openFileForWrite(Filename, ResultFD, llvm::sys::fs::F_Text)));
llvm::raw_fd_ostream Ostr(ResultFD, true /*shouldClose*/);
writeYamlTo(Context, Ostr);
}
}
void BenchmarkMeasureStats::push(const BenchmarkMeasure &BM) {
if (Key.empty())
Key = BM.Key;
assert(Key == BM.Key);
++NumValues;
SumValues += BM.Value;
MaxValue = std::max(MaxValue, BM.Value);
MinValue = std::min(MinValue, BM.Value);
}
} // namespace exegesis
|
