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//===-- SchedClassResolution.h ----------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// \file
/// Resolution of MCInst sched class into expanded form for further analysis.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVM_EXEGESIS_SCHEDCLASSRESOLUTION_H
#define LLVM_TOOLS_LLVM_EXEGESIS_SCHEDCLASSRESOLUTION_H
#include "BenchmarkResult.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDisassembler/MCDisassembler.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/raw_ostream.h"
namespace llvm {
namespace exegesis {
// Computes the idealized ProcRes Unit pressure. This is the expected
// distribution if the CPU scheduler can distribute the load as evenly as
// possible.
std::vector<std::pair<uint16_t, float>>
computeIdealizedProcResPressure(const MCSchedModel &SM,
SmallVector<MCWriteProcResEntry, 8> WPRS);
// An MCSchedClassDesc augmented with some additional data.
struct ResolvedSchedClass {
ResolvedSchedClass(const MCSubtargetInfo &STI, unsigned ResolvedSchedClassId,
bool WasVariant);
static std::pair<unsigned /*SchedClassId*/, bool /*WasVariant*/>
resolveSchedClassId(const MCSubtargetInfo &SubtargetInfo,
const MCInstrInfo &InstrInfo, const MCInst &MCI);
std::vector<BenchmarkMeasure>
getAsPoint(InstructionBenchmark::ModeE Mode, const MCSubtargetInfo &STI,
ArrayRef<PerInstructionStats> Representative) const;
const unsigned SchedClassId;
const MCSchedClassDesc *const SCDesc;
const bool WasVariant; // Whether the original class was variant.
const SmallVector<MCWriteProcResEntry, 8> NonRedundantWriteProcRes;
const std::vector<std::pair<uint16_t, float>> IdealizedProcResPressure;
};
} // namespace exegesis
} // namespace llvm
#endif // LLVM_TOOLS_LLVM_EXEGESIS_SCHEDCLASSRESOLUTION_H
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