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//===-- BenchmarkResultTest.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/SmallString.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/YAMLTraits.h"
#include "llvm/Support/raw_ostream.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
using ::testing::AllOf;
using ::testing::Eq;
using ::testing::get;
using ::testing::Pointwise;
using ::testing::Property;
namespace exegesis {
bool operator==(const BenchmarkMeasure &A, const BenchmarkMeasure &B) {
return std::tie(A.Key, A.Value) == std::tie(B.Key, B.Value);
}
static std::string Dump(const llvm::MCInst &McInst) {
std::string Buffer;
llvm::raw_string_ostream OS(Buffer);
McInst.print(OS);
return Buffer;
}
MATCHER(EqMCInst, "") {
const std::string Lhs = Dump(get<0>(arg));
const std::string Rhs = Dump(get<1>(arg));
if (Lhs != Rhs) {
*result_listener << Lhs << " <=> " << Rhs;
return false;
}
return true;
}
namespace {
static constexpr const unsigned kInstrId = 5;
static constexpr const char kInstrName[] = "Instruction5";
static constexpr const unsigned kReg1Id = 1;
static constexpr const char kReg1Name[] = "Reg1";
static constexpr const unsigned kReg2Id = 2;
static constexpr const char kReg2Name[] = "Reg2";
TEST(BenchmarkResultTest, WriteToAndReadFromDisk) {
llvm::ExitOnError ExitOnErr;
BenchmarkResultContext Ctx;
Ctx.addInstrEntry(kInstrId, kInstrName);
Ctx.addRegEntry(kReg1Id, kReg1Name);
Ctx.addRegEntry(kReg2Id, kReg2Name);
InstructionBenchmark ToDisk;
ToDisk.Key.Instructions.push_back(llvm::MCInstBuilder(kInstrId)
.addReg(kReg1Id)
.addReg(kReg2Id)
.addImm(123)
.addFPImm(0.5));
ToDisk.Key.Config = "config";
ToDisk.Mode = InstructionBenchmark::Latency;
ToDisk.CpuName = "cpu_name";
ToDisk.LLVMTriple = "llvm_triple";
ToDisk.NumRepetitions = 1;
ToDisk.Measurements.push_back(BenchmarkMeasure{"a", 1, "debug a"});
ToDisk.Measurements.push_back(BenchmarkMeasure{"b", 2, ""});
ToDisk.Error = "error";
ToDisk.Info = "info";
llvm::SmallString<64> Filename;
std::error_code EC;
EC = llvm::sys::fs::createUniqueDirectory("BenchmarkResultTestDir", Filename);
ASSERT_FALSE(EC);
llvm::sys::path::append(Filename, "data.yaml");
ExitOnErr(ToDisk.writeYaml(Ctx, Filename));
{
// One-element version.
const auto FromDisk =
ExitOnErr(InstructionBenchmark::readYaml(Ctx, Filename));
EXPECT_THAT(FromDisk.Key.Instructions,
Pointwise(EqMCInst(), ToDisk.Key.Instructions));
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);
EXPECT_THAT(FromDisk.Measurements, ToDisk.Measurements);
EXPECT_THAT(FromDisk.Error, ToDisk.Error);
EXPECT_EQ(FromDisk.Info, ToDisk.Info);
}
{
// Vector version.
const auto FromDiskVector =
ExitOnErr(InstructionBenchmark::readYamls(Ctx, Filename));
ASSERT_EQ(FromDiskVector.size(), size_t{1});
const auto FromDisk = FromDiskVector[0];
EXPECT_THAT(FromDisk.Key.Instructions,
Pointwise(EqMCInst(), ToDisk.Key.Instructions));
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);
EXPECT_THAT(FromDisk.Measurements, ToDisk.Measurements);
EXPECT_THAT(FromDisk.Error, ToDisk.Error);
EXPECT_EQ(FromDisk.Info, ToDisk.Info);
}
}
TEST(BenchmarkResultTest, BenchmarkMeasureStats) {
BenchmarkMeasureStats Stats;
Stats.push(BenchmarkMeasure{"a", 0.5, "debug a"});
Stats.push(BenchmarkMeasure{"a", 1.5, "debug a"});
Stats.push(BenchmarkMeasure{"a", -1.0, "debug a"});
Stats.push(BenchmarkMeasure{"a", 0.0, "debug a"});
EXPECT_EQ(Stats.min(), -1.0);
EXPECT_EQ(Stats.max(), 1.5);
EXPECT_EQ(Stats.avg(), 0.25); // (0.5+1.5-1.0+0.0) / 4
}
} // namespace
} // namespace exegesis
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