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76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
//===--------------------- InstructionInfoView.cpp -------------------*- C++
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//-*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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/// \file
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///
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/// This file implements the InstructionView API.
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///
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//===----------------------------------------------------------------------===//
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#include "InstructionInfoView.h"
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namespace mca {
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using namespace llvm;
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void InstructionInfoView::printView(raw_ostream &OS) const {
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std::string Buffer;
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raw_string_ostream TempStream(Buffer);
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const MCSchedModel &SM = STI.getSchedModel();
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unsigned Instructions = Source.size();
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TempStream << "\n\nInstruction Info:\n";
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TempStream << "[1]: #uOps\n[2]: Latency\n[3]: RThroughput\n"
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<< "[4]: MayLoad\n[5]: MayStore\n[6]: HasSideEffects\n\n";
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TempStream << "[1] [2] [3] [4] [5] [6]\tInstructions:\n";
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for (unsigned I = 0, E = Instructions; I < E; ++I) {
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const MCInst &Inst = Source.getMCInstFromIndex(I);
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const MCInstrDesc &MCDesc = MCII.get(Inst.getOpcode());
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const MCSchedClassDesc &SCDesc =
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*SM.getSchedClassDesc(MCDesc.getSchedClass());
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unsigned NumMicroOpcodes = SCDesc.NumMicroOps;
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unsigned Latency = MCSchedModel::computeInstrLatency(STI, SCDesc);
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Optional<double> RThroughput =
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MCSchedModel::getReciprocalThroughput(STI, SCDesc);
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TempStream << ' ' << NumMicroOpcodes << " ";
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if (NumMicroOpcodes < 10)
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TempStream << " ";
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else if (NumMicroOpcodes < 100)
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TempStream << ' ';
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TempStream << Latency << " ";
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if (Latency < 10)
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TempStream << " ";
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else if (Latency < 100)
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TempStream << ' ';
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if (RThroughput.hasValue()) {
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double RT = RThroughput.getValue();
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TempStream << format("%.2f", RT) << ' ';
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if (RT < 10.0)
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TempStream << " ";
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else if (RT < 100.0)
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TempStream << ' ';
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} else {
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TempStream << " - ";
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}
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TempStream << (MCDesc.mayLoad() ? " * " : " ");
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TempStream << (MCDesc.mayStore() ? " * " : " ");
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TempStream << (MCDesc.hasUnmodeledSideEffects() ? " * " : " ");
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MCIP.printInst(&Inst, TempStream, "", STI);
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TempStream << '\n';
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}
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TempStream.flush();
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OS << Buffer;
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}
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} // namespace mca.
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