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#include "Analysis.h"
#include "llvm/Support/Format.h"
namespace exegesis {
namespace {
// Prints a row representing an instruction, along with scheduling info and
// point coordinates (measurements).
void renderInstructionRow(const InstructionBenchmark &Point,
const size_t NameLen, llvm::raw_ostream &OS) {
OS << llvm::format("%*s", NameLen, Point.AsmTmpl.Name.c_str());
for (const auto &Measurement : Point.Measurements) {
OS << llvm::format(" %*.2f", Measurement.Key.size(), Measurement.Value);
}
OS << "\n";
}
void analyzeCluster(const std::vector<InstructionBenchmark> &Points,
const llvm::MCSubtargetInfo &STI,
const InstructionBenchmarkClustering::Cluster &Cluster,
llvm::raw_ostream &OS) {
// TODO:
// std::sort(Cluster.PointIndices.begin(), Cluster.PointIndices.end(),
// [](int PointIdA, int PointIdB) { return GetSchedClass(Points[PointIdA]) <
// GetSchedClass(Points[PointIdB]); });
OS << "Cluster:\n";
// Get max length of the name for alignement.
size_t NameLen = 0;
for (const auto &PointId : Cluster.PointIndices) {
NameLen = std::max(NameLen, Points[PointId].AsmTmpl.Name.size());
}
// Print all points.
for (const auto &PointId : Cluster.PointIndices) {
renderInstructionRow(Points[PointId], NameLen, OS);
}
}
} // namespace
llvm::Error
printAnalysisClusters(const InstructionBenchmarkClustering &Clustering,
const llvm::MCSubtargetInfo &STI, llvm::raw_ostream &OS) {
for (const auto &Cluster : Clustering.getValidClusters()) {
analyzeCluster(Clustering.getPoints(), STI, Cluster, OS);
OS << "\n\n\n";
}
return llvm::Error::success();
}
} // namespace exegesis
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