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//===----------------------- View.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 defines the member functions of the class InstructionView.
///
//===----------------------------------------------------------------------===//
#include <sstream>
#include "Views/InstructionView.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCSubtargetInfo.h"
namespace llvm {
namespace mca {
StringRef InstructionView::printInstructionString(const llvm::MCInst &MCI) const {
InstructionString = "";
MCIP.printInst(&MCI, 0, "", STI, InstrStream);
InstrStream.flush();
// Remove any tabs or spaces at the beginning of the instruction.
return StringRef(InstructionString).ltrim();
}
json::Value InstructionView::toJSON() const {
json::Object JO;
json::Array SourceInfo;
for (const auto &MCI : getSource()) {
StringRef Instruction = printInstructionString(MCI);
SourceInfo.push_back(Instruction.str());
}
JO.try_emplace("Instructions", std::move(SourceInfo));
json::Array Resources;
const MCSchedModel &SM = STI.getSchedModel();
for (unsigned I = 1, E = SM.getNumProcResourceKinds(); I < E; ++I) {
const MCProcResourceDesc &ProcResource = *SM.getProcResource(I);
unsigned NumUnits = ProcResource.NumUnits;
// Skip groups and invalid resources with zero units.
if (ProcResource.SubUnitsIdxBegin || !NumUnits)
continue;
for (unsigned J = 0; J < NumUnits; ++J) {
std::stringstream ResNameStream;
ResNameStream << ProcResource.Name;
if (NumUnits > 1)
ResNameStream << "." << J;
Resources.push_back(ResNameStream.str());
}
}
JO.try_emplace("Resources", json::Object({{"CPUName", MCPU}, {"Resources", std::move(Resources)}}));
return JO;
}
} // namespace mca
} // namespace llvm
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