1 files changed, 134 insertions, 0 deletions
diff --git a/unittests/tools/llvm-exegesis/BenchmarkResultTest.cpp b/unittests/tools/llvm-exegesis/BenchmarkResultTest.cpp
new file mode 100644
index 000000000000..2b604dcdeb44
--- /dev/null
+++ b/unittests/tools/llvm-exegesis/BenchmarkResultTest.cpp
@@ -0,0 +1,134 @@
+//===-- 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