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