llvm-project/llvm/tools/llvm-mca/PipelinePrinter.cpp
Patrick Holland fe01014faa [MCA] Moved View.h and View.cpp from /tools/llvm-mca/ to /lib/MCA/.
Moved View.h and View.cpp from /tools/llvm-mca/Views/ to /lib/MCA/ and
/include/llvm/MCA/. This is so that targets can define their own Views within
the /lib/Target/ directory (so that the View can use backend functionality).
To enable these Views within mca, targets will need to add them to the vector of
Views returned by their target's CustomBehaviour::getViews() methods.

Differential Revision: https://reviews.llvm.org/D108520
2021-08-25 12:12:47 -07:00

130 lines
3.9 KiB
C++

//===--------------------- PipelinePrinter.cpp ------------------*- 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
///
/// This file implements the PipelinePrinter interface.
///
//===----------------------------------------------------------------------===//
#include "PipelinePrinter.h"
#include "CodeRegion.h"
#include "Views/InstructionView.h"
namespace llvm {
namespace mca {
void PipelinePrinter::printRegionHeader(llvm::raw_ostream &OS) const {
StringRef RegionName;
if (!Region.getDescription().empty())
RegionName = Region.getDescription();
OS << "\n[" << RegionIdx << "] Code Region";
if (!RegionName.empty())
OS << " - " << RegionName;
OS << "\n\n";
}
json::Object PipelinePrinter::getJSONReportRegion() const {
json::Object JO;
StringRef RegionName = "";
if (!Region.getDescription().empty())
RegionName = Region.getDescription();
JO.try_emplace("Name", RegionName);
for (const auto &V : Views)
if (V->isSerializable())
JO.try_emplace(V->getNameAsString().str(), V->toJSON());
return JO;
}
json::Object PipelinePrinter::getJSONSimulationParameters() const {
json::Object SimParameters({{"-mcpu", STI.getCPU()},
{"-mtriple", STI.getTargetTriple().getTriple()},
{"-march", STI.getTargetTriple().getArchName()}});
const MCSchedModel &SM = STI.getSchedModel();
if (!SM.isOutOfOrder())
return SimParameters;
if (PO.RegisterFileSize)
SimParameters.try_emplace("-register-file-size", PO.RegisterFileSize);
if (!PO.AssumeNoAlias)
SimParameters.try_emplace("-noalias", PO.AssumeNoAlias);
if (PO.DecodersThroughput)
SimParameters.try_emplace("-decoder-throughput", PO.DecodersThroughput);
if (PO.MicroOpQueueSize)
SimParameters.try_emplace("-micro-op-queue-size", PO.MicroOpQueueSize);
if (PO.DispatchWidth)
SimParameters.try_emplace("-dispatch", PO.DispatchWidth);
if (PO.LoadQueueSize)
SimParameters.try_emplace("-lqueue", PO.LoadQueueSize);
if (PO.StoreQueueSize)
SimParameters.try_emplace("-squeue", PO.StoreQueueSize);
return SimParameters;
}
json::Object PipelinePrinter::getJSONTargetInfo() const {
json::Array Resources;
const MCSchedModel &SM = STI.getSchedModel();
StringRef MCPU = STI.getCPU();
for (unsigned I = 1, E = SM.getNumProcResourceKinds(); I < E; ++I) {
const MCProcResourceDesc &ProcResource = *SM.getProcResource(I);
unsigned NumUnits = ProcResource.NumUnits;
if (ProcResource.SubUnitsIdxBegin || !NumUnits)
continue;
for (unsigned J = 0; J < NumUnits; ++J) {
std::string ResourceName = ProcResource.Name;
if (NumUnits > 1) {
ResourceName += ".";
ResourceName += J;
}
Resources.push_back(ResourceName);
}
}
return json::Object({{"CPUName", MCPU}, {"Resources", std::move(Resources)}});
}
void PipelinePrinter::printReport(json::Object &JO) const {
if (!RegionIdx) {
JO.try_emplace("TargetInfo", getJSONTargetInfo());
JO.try_emplace("SimulationParameters", getJSONSimulationParameters());
// Construct an array of regions.
JO.try_emplace("CodeRegions", json::Array());
}
json::Array *Regions = JO.getArray("CodeRegions");
assert(Regions && "This array must exist!");
Regions->push_back(getJSONReportRegion());
}
void PipelinePrinter::printReport(llvm::raw_ostream &OS) const {
// Don't print the header of this region if it is the default region, and if
// it doesn't have an end location.
if (Region.startLoc().isValid() || Region.endLoc().isValid())
printRegionHeader(OS);
for (const auto &V : Views)
V->printView(OS);
}
} // namespace mca
} // namespace llvm