1 //===----------------------- View.cpp ---------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 /// \file
9 ///
10 /// This file defines the member functions of the class InstructionView.
11 ///
12 //===----------------------------------------------------------------------===//
13
14 #include <sstream>
15 #include "Views/InstructionView.h"
16 #include "llvm/MC/MCInst.h"
17 #include "llvm/MC/MCSubtargetInfo.h"
18
19 namespace llvm {
20 namespace mca {
21
printInstructionString(const llvm::MCInst & MCI) const22 StringRef InstructionView::printInstructionString(const llvm::MCInst &MCI) const {
23 InstructionString = "";
24 MCIP.printInst(&MCI, 0, "", STI, InstrStream);
25 InstrStream.flush();
26 // Remove any tabs or spaces at the beginning of the instruction.
27 return StringRef(InstructionString).ltrim();
28 }
29
toJSON() const30 json::Value InstructionView::toJSON() const {
31 json::Object JO;
32 json::Array SourceInfo;
33 for (const auto &MCI : getSource()) {
34 StringRef Instruction = printInstructionString(MCI);
35 SourceInfo.push_back(Instruction.str());
36 }
37 JO.try_emplace("Instructions", std::move(SourceInfo));
38
39 json::Array Resources;
40 const MCSchedModel &SM = STI.getSchedModel();
41 for (unsigned I = 1, E = SM.getNumProcResourceKinds(); I < E; ++I) {
42 const MCProcResourceDesc &ProcResource = *SM.getProcResource(I);
43 unsigned NumUnits = ProcResource.NumUnits;
44 // Skip groups and invalid resources with zero units.
45 if (ProcResource.SubUnitsIdxBegin || !NumUnits)
46 continue;
47 for (unsigned J = 0; J < NumUnits; ++J) {
48 std::stringstream ResNameStream;
49 ResNameStream << ProcResource.Name;
50 if (NumUnits > 1)
51 ResNameStream << "." << J;
52 Resources.push_back(ResNameStream.str());
53 }
54 }
55 JO.try_emplace("Resources", json::Object({{"CPUName", MCPU}, {"Resources", std::move(Resources)}}));
56
57 return JO;
58 }
59 } // namespace mca
60 } // namespace llvm
61