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[llvm-exegesis] move Mode from Key to BenchmarResult.

Browse Source 
Moves the Mode field out of the Key. The existing yaml benchmark results can be fixed with the following script:

```
readonly FILE=$1
readonly MODE=latency # Change to uops to fix a uops benchmark.
cat $FILE | \
  sed "/^\ \+mode:\ \+$MODE$/d" | \
  sed "/^cpu_name.*$/i mode:            $MODE"
```

Differential Revision: https://reviews.llvm.org/D47813

Authored by: Guillaume Chatelet

llvm-svn: 334079
This commit is contained in:
Clement Courbet 2018-06-06 09:42:36 +00:00
parent 7d816e3012
commit f38ee2fab7
10 changed files with 22 additions and 23 deletions
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7
tools/llvm-exegesis/lib/Analysis.cpp
View File

@ -319,9 +319,8 @@ bool Analysis::SchedClassCluster::measurementsMatch(
std::vector<BenchmarkMeasure> SchedClassPoint(NumMeasurements);
// Latency case.
assert(!Clustering.getPoints().empty());
const InstructionBenchmarkKey::ModeE Mode =
Clustering.getPoints()[0].Key.Mode;
if (Mode == InstructionBenchmarkKey::Latency) {
const InstructionBenchmark::ModeE Mode = Clustering.getPoints()[0].Mode;
if (Mode == InstructionBenchmark::Latency) {
if (NumMeasurements != 1) {
llvm::errs()
<< "invalid number of measurements in latency mode: expected 1, got "
@ -337,7 +336,7 @@ bool Analysis::SchedClassCluster::measurementsMatch(
std::max<double>(SchedClassPoint[0].Value, WLE->Cycles);
}
ClusterCenterPoint[0].Value = Representative[0].avg();
} else if (Mode == InstructionBenchmarkKey::Uops) {
} else if (Mode == InstructionBenchmark::Uops) {
for (int I = 0, E = Representative.size(); I < E; ++I) {
// Find the pressure on ProcResIdx `Key`.
uint16_t ProcResIdx = 0;

12
tools/llvm-exegesis/lib/BenchmarkResult.cpp
View File

@ -68,12 +68,12 @@ template <> struct MappingTraits<exegesis::BenchmarkMeasure> {
};
template <>
struct ScalarEnumerationTraits<exegesis::InstructionBenchmarkKey::ModeE> {
struct ScalarEnumerationTraits<exegesis::InstructionBenchmark::ModeE> {
static void enumeration(IO &Io,
exegesis::InstructionBenchmarkKey::ModeE &Value) {
Io.enumCase(Value, "", exegesis::InstructionBenchmarkKey::Unknown);
Io.enumCase(Value, "latency", exegesis::InstructionBenchmarkKey::Latency);
Io.enumCase(Value, "uops", exegesis::InstructionBenchmarkKey::Uops);
exegesis::InstructionBenchmark::ModeE &Value) {
Io.enumCase(Value, "", exegesis::InstructionBenchmark::Unknown);
Io.enumCase(Value, "latency", exegesis::InstructionBenchmark::Latency);
Io.enumCase(Value, "uops", exegesis::InstructionBenchmark::Uops);
}
};
@ -81,13 +81,13 @@ 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.mapRequired("mode", Obj.Mode);
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);

4
tools/llvm-exegesis/lib/BenchmarkResult.h
View File

@ -34,8 +34,6 @@ struct InstructionBenchmarkKey {
// The LLVM opcode name.
std::string OpcodeName; // FIXME: Deprecated, use Instructions below.
std::vector<llvm::MCInst> Instructions;
enum ModeE { Unknown, Latency, Uops };
ModeE Mode;
// An opaque configuration, that can be used to separate several benchmarks of
// the same instruction under different configurations.
std::string Config;
@ -50,6 +48,8 @@ struct BenchmarkMeasure {
// The result of an instruction benchmark.
struct InstructionBenchmark {
InstructionBenchmarkKey Key;
enum ModeE { Unknown, Latency, Uops };
ModeE Mode;
std::string CpuName;
std::string LLVMTriple;
int NumRepetitions = 0;

2
tools/llvm-exegesis/lib/BenchmarkRunner.cpp
View File

@ -37,7 +37,7 @@ InstructionBenchmark BenchmarkRunner::run(unsigned Opcode,
InstructionBenchmark InstrBenchmark;
InstrBenchmark.Key.OpcodeName = State.getInstrInfo().getName(Opcode);
InstrBenchmark.Key.Mode = getMode();
InstrBenchmark.Mode = getMode();
InstrBenchmark.CpuName = State.getCpuName();
InstrBenchmark.LLVMTriple = State.getTriple();
InstrBenchmark.NumRepetitions = NumRepetitions;

2
tools/llvm-exegesis/lib/BenchmarkRunner.h
View File

@ -54,7 +54,7 @@ protected:
const llvm::MCRegisterInfo &MCRegisterInfo;
private:
virtual InstructionBenchmarkKey::ModeE getMode() const = 0;
virtual InstructionBenchmark::ModeE getMode() const = 0;
virtual llvm::Expected<std::vector<llvm::MCInst>>
createSnippet(RegisterAliasingTrackerCache &RATC, unsigned Opcode,

4
tools/llvm-exegesis/lib/Latency.cpp
View File

@ -52,8 +52,8 @@ static llvm::Error makeError(llvm::Twine Msg) {
LatencyBenchmarkRunner::~LatencyBenchmarkRunner() = default;
InstructionBenchmarkKey::ModeE LatencyBenchmarkRunner::getMode() const {
return InstructionBenchmarkKey::Latency;
InstructionBenchmark::ModeE LatencyBenchmarkRunner::getMode() const {
return InstructionBenchmark::Latency;
}
llvm::Expected<std::vector<llvm::MCInst>>

2
tools/llvm-exegesis/lib/Latency.h
View File

@ -25,7 +25,7 @@ public:
~LatencyBenchmarkRunner() override;
private:
InstructionBenchmarkKey::ModeE getMode() const override;
InstructionBenchmark::ModeE getMode() const override;
llvm::Expected<std::vector<llvm::MCInst>>
createSnippet(RegisterAliasingTrackerCache &RATC, unsigned OpcodeIndex,

4
tools/llvm-exegesis/lib/Uops.cpp
View File

@ -141,8 +141,8 @@ static llvm::Error makeError(llvm::Twine Msg) {
UopsBenchmarkRunner::~UopsBenchmarkRunner() = default;
InstructionBenchmarkKey::ModeE UopsBenchmarkRunner::getMode() const {
return InstructionBenchmarkKey::Uops;
InstructionBenchmark::ModeE UopsBenchmarkRunner::getMode() const {
return InstructionBenchmark::Uops;
}
llvm::Expected<std::vector<llvm::MCInst>>

2
tools/llvm-exegesis/lib/Uops.h
View File

@ -25,7 +25,7 @@ public:
~UopsBenchmarkRunner() override;
private:
InstructionBenchmarkKey::ModeE getMode() const override;
InstructionBenchmark::ModeE getMode() const override;
llvm::Expected<std::vector<llvm::MCInst>>
createSnippet(RegisterAliasingTrackerCache &RATC, unsigned Opcode,

6
unittests/tools/llvm-exegesis/BenchmarkResultTest.cpp
View File

@ -45,8 +45,8 @@ TEST(BenchmarkResultTest, WriteToAndReadFromDisk) {
ToDisk.Key.OpcodeName = "name";
ToDisk.Key.Instructions.push_back(llvm::MCInstBuilder(kInstrId));
ToDisk.Key.Mode = InstructionBenchmarkKey::Latency;
ToDisk.Key.Config = "config";
ToDisk.Mode = InstructionBenchmark::Latency;
ToDisk.CpuName = "cpu_name";
ToDisk.LLVMTriple = "llvm_triple";
ToDisk.NumRepetitions = 1;
@ -69,8 +69,8 @@ TEST(BenchmarkResultTest, WriteToAndReadFromDisk) {
EXPECT_EQ(FromDisk.Key.OpcodeName, ToDisk.Key.OpcodeName);
EXPECT_THAT(FromDisk.Key.Instructions,
Pointwise(EqMCInst(), ToDisk.Key.Instructions));
EXPECT_EQ(FromDisk.Key.Mode, ToDisk.Key.Mode);
EXPECT_EQ(FromDisk.Key.Config, ToDisk.Key.Config);
EXPECT_EQ(FromDisk.Mode, ToDisk.Mode);
EXPECT_EQ(FromDisk.CpuName, ToDisk.CpuName);
EXPECT_EQ(FromDisk.LLVMTriple, ToDisk.LLVMTriple);
EXPECT_EQ(FromDisk.NumRepetitions, ToDisk.NumRepetitions);
@ -87,8 +87,8 @@ TEST(BenchmarkResultTest, WriteToAndReadFromDisk) {
EXPECT_EQ(FromDisk.Key.OpcodeName, ToDisk.Key.OpcodeName);
EXPECT_THAT(FromDisk.Key.Instructions,
Pointwise(EqMCInst(), ToDisk.Key.Instructions));
EXPECT_EQ(FromDisk.Key.Mode, ToDisk.Key.Mode);
EXPECT_EQ(FromDisk.Key.Config, ToDisk.Key.Config);
EXPECT_EQ(FromDisk.Mode, ToDisk.Mode);
EXPECT_EQ(FromDisk.CpuName, ToDisk.CpuName);
EXPECT_EQ(FromDisk.LLVMTriple, ToDisk.LLVMTriple);
EXPECT_EQ(FromDisk.NumRepetitions, ToDisk.NumRepetitions);