diff options
Diffstat (limited to 'llvm/tools/llvm-exegesis/lib/SchedClassResolution.h')
-rw-r--r-- | llvm/tools/llvm-exegesis/lib/SchedClassResolution.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/llvm/tools/llvm-exegesis/lib/SchedClassResolution.h b/llvm/tools/llvm-exegesis/lib/SchedClassResolution.h new file mode 100644 index 00000000000..00f65ee2edf --- /dev/null +++ b/llvm/tools/llvm-exegesis/lib/SchedClassResolution.h @@ -0,0 +1,58 @@ +//===-- 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 +/// Analysis output for benchmark results. +/// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_TOOLS_LLVM_EXEGESIS_SCHEDCLASSRESOLUTION_H +#define LLVM_TOOLS_LLVM_EXEGESIS_SCHEDCLASSRESOLUTION_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 llvm::MCSchedModel &SM, + llvm::SmallVector<llvm::MCWriteProcResEntry, 8> WPRS); + +// An llvm::MCSchedClassDesc augmented with some additional data. +struct ResolvedSchedClass { + ResolvedSchedClass(const llvm::MCSubtargetInfo &STI, + unsigned ResolvedSchedClassId, bool WasVariant); + + static std::pair<unsigned /*SchedClassId*/, bool /*WasVariant*/> + resolveSchedClassId(const llvm::MCSubtargetInfo &SubtargetInfo, + const llvm::MCInstrInfo &InstrInfo, + const llvm::MCInst &MCI); + + const unsigned SchedClassId; + const llvm::MCSchedClassDesc *const SCDesc; + const bool WasVariant; // Whether the original class was variant. + const llvm::SmallVector<llvm::MCWriteProcResEntry, 8> + NonRedundantWriteProcRes; + const std::vector<std::pair<uint16_t, float>> IdealizedProcResPressure; +}; + +} // namespace exegesis +} // namespace llvm + +#endif // LLVM_TOOLS_LLVM_EXEGESIS_SCHEDCLASSRESOLUTION_H |