llvm/tools/llvm-exegesis/lib/LatencyBenchmarkRunner.h

   1 //===-- LatencyBenchmarkRunner.h --------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 ///
   9 /// \file
  10 /// A BenchmarkRunner implementation to measure instruction latencies.
  11 ///
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_TOOLS_LLVM_EXEGESIS_LATENCY_H
  15 #define LLVM_TOOLS_LLVM_EXEGESIS_LATENCY_H
  16
  17 #include "BenchmarkRunner.h"
  18
  19 namespace llvm {
  20 namespace exegesis {
  21
  22 class LatencyBenchmarkRunner : public BenchmarkRunner {
  23 public:
  24   LatencyBenchmarkRunner(const LLVMState &State,
  25                          InstructionBenchmark::ModeE Mode);
  26   ~LatencyBenchmarkRunner() override;
  27
  28 private:
  29   Expected<std::vector<BenchmarkMeasure>>
  30   runMeasurements(const FunctionExecutor &Executor) const override;
  31 };
  32 } // namespace exegesis
  33 } // namespace llvm
  34
  35 #endif // LLVM_TOOLS_LLVM_EXEGESIS_LATENCY_H