mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
df7a8b162e
This makes it possible for targets to define their own MCObjectFileInfo. This MCObjectFileInfo is then used to determine things like section alignment. This is a follow up to D101462 and prepares for the RISCV backend defining the text section alignment depending on the enabled extensions. Reviewed By: MaskRay Differential Revision: https://reviews.llvm.org/D101921
130 lines
4.5 KiB
C++
130 lines
4.5 KiB
C++
//===-- Analysis.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_ANALYSIS_H
|
|
#define LLVM_TOOLS_LLVM_EXEGESIS_ANALYSIS_H
|
|
|
|
#include "Clustering.h"
|
|
#include "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"
|
|
#include <memory>
|
|
#include <set>
|
|
#include <string>
|
|
#include <unordered_map>
|
|
|
|
namespace llvm {
|
|
namespace exegesis {
|
|
|
|
// A helper class to analyze benchmark results for a target.
|
|
class Analysis {
|
|
public:
|
|
Analysis(const Target &Target, std::unique_ptr<MCInstrInfo> InstrInfo,
|
|
const InstructionBenchmarkClustering &Clustering,
|
|
double AnalysisInconsistencyEpsilon,
|
|
bool AnalysisDisplayUnstableOpcodes,
|
|
const std::string &ForceCpuName = "");
|
|
|
|
// Prints a csv of instructions for each cluster.
|
|
struct PrintClusters {};
|
|
// Find potential errors in the scheduling information given measurements.
|
|
struct PrintSchedClassInconsistencies {};
|
|
|
|
template <typename Pass> Error run(raw_ostream &OS) const;
|
|
|
|
private:
|
|
using ClusterId = InstructionBenchmarkClustering::ClusterId;
|
|
|
|
// Represents the intersection of a sched class and a cluster.
|
|
class SchedClassCluster {
|
|
public:
|
|
const InstructionBenchmarkClustering::ClusterId &id() const {
|
|
return ClusterId;
|
|
}
|
|
|
|
const std::vector<size_t> &getPointIds() const { return PointIds; }
|
|
|
|
void addPoint(size_t PointId,
|
|
const InstructionBenchmarkClustering &Clustering);
|
|
|
|
// Return the cluster centroid.
|
|
const SchedClassClusterCentroid &getCentroid() const { return Centroid; }
|
|
|
|
// Returns true if the cluster representative measurements match that of SC.
|
|
bool
|
|
measurementsMatch(const MCSubtargetInfo &STI, const ResolvedSchedClass &SC,
|
|
const InstructionBenchmarkClustering &Clustering,
|
|
const double AnalysisInconsistencyEpsilonSquared_) const;
|
|
|
|
private:
|
|
InstructionBenchmarkClustering::ClusterId ClusterId;
|
|
std::vector<size_t> PointIds;
|
|
// Measurement stats for the points in the SchedClassCluster.
|
|
SchedClassClusterCentroid Centroid;
|
|
};
|
|
|
|
void printInstructionRowCsv(size_t PointId, raw_ostream &OS) const;
|
|
|
|
void printClusterRawHtml(const InstructionBenchmarkClustering::ClusterId &Id,
|
|
StringRef display_name, llvm::raw_ostream &OS) const;
|
|
|
|
void printPointHtml(const InstructionBenchmark &Point,
|
|
llvm::raw_ostream &OS) const;
|
|
|
|
void
|
|
printSchedClassClustersHtml(const std::vector<SchedClassCluster> &Clusters,
|
|
const ResolvedSchedClass &SC,
|
|
raw_ostream &OS) const;
|
|
void printSchedClassDescHtml(const ResolvedSchedClass &SC,
|
|
raw_ostream &OS) const;
|
|
|
|
// A pair of (Sched Class, indices of points that belong to the sched
|
|
// class).
|
|
struct ResolvedSchedClassAndPoints {
|
|
explicit ResolvedSchedClassAndPoints(ResolvedSchedClass &&RSC);
|
|
|
|
ResolvedSchedClass RSC;
|
|
std::vector<size_t> PointIds;
|
|
};
|
|
|
|
// Builds a list of ResolvedSchedClassAndPoints.
|
|
std::vector<ResolvedSchedClassAndPoints> makePointsPerSchedClass() const;
|
|
|
|
template <typename EscapeTag, EscapeTag Tag>
|
|
void writeSnippet(raw_ostream &OS, ArrayRef<uint8_t> Bytes,
|
|
const char *Separator) const;
|
|
|
|
const InstructionBenchmarkClustering &Clustering_;
|
|
std::unique_ptr<MCContext> Context_;
|
|
std::unique_ptr<MCSubtargetInfo> SubtargetInfo_;
|
|
std::unique_ptr<MCInstrInfo> InstrInfo_;
|
|
std::unique_ptr<MCRegisterInfo> RegInfo_;
|
|
std::unique_ptr<MCAsmInfo> AsmInfo_;
|
|
std::unique_ptr<MCInstPrinter> InstPrinter_;
|
|
std::unique_ptr<MCDisassembler> Disasm_;
|
|
const double AnalysisInconsistencyEpsilonSquared_;
|
|
const bool AnalysisDisplayUnstableOpcodes_;
|
|
};
|
|
|
|
} // namespace exegesis
|
|
} // namespace llvm
|
|
|
|
#endif // LLVM_TOOLS_LLVM_EXEGESIS_CLUSTERING_H
|