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//===-- BenchmarkRunner.h ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// Defines the abstract BenchmarkRunner class for measuring a certain execution
/// property of instructions (e.g. latency).
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVM_EXEGESIS_BENCHMARKRUNNER_H
#define LLVM_TOOLS_LLVM_EXEGESIS_BENCHMARKRUNNER_H
#include "BenchmarkResult.h"
#include "InMemoryAssembler.h"
#include "LlvmState.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/Error.h"
#include <vector>
namespace exegesis {
// Common code for all benchmark modes.
class BenchmarkRunner {
public:
// Subtargets can disable running benchmarks for some instructions by
// returning an error here.
class InstructionFilter {
public:
virtual ~InstructionFilter();
virtual llvm::Error shouldRun(const LLVMState &State,
unsigned Opcode) const {
return llvm::ErrorSuccess();
}
};
virtual ~BenchmarkRunner();
InstructionBenchmark run(const LLVMState &State, unsigned Opcode,
unsigned NumRepetitions,
const InstructionFilter &Filter) const;
private:
virtual const char *getDisplayName() const = 0;
virtual llvm::Expected<std::vector<llvm::MCInst>>
createCode(const LLVMState &State, unsigned OpcodeIndex,
unsigned NumRepetitions,
const JitFunctionContext &Context) const = 0;
virtual std::vector<BenchmarkMeasure>
runMeasurements(const LLVMState &State, const JitFunction &Function,
unsigned NumRepetitions) const = 0;
};
} // namespace exegesis
#endif // LLVM_TOOLS_LLVM_EXEGESIS_BENCHMARKRUNNER_H
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