We have found a bug using PVS-Studio tool. PVS-Studio is a static code analyzer for C, C++ and C#: https://www.viva64.com/en/pvs-studio/

Analyzer warning: V778 Two similar code fragments were found. Perhaps, this is a typo and 'FS' variable should be used instead of 'TS'. hexagonearlyifconv.cpp 549

bool HexagonEarlyIfConversion::isProfitable(....) const
{
  ....
  unsigned TS = 0, FS = 0, Spare = 0;
  if (FP.TrueB) {
    TS = std::distance(FP.TrueB->begin(),
      FP.TrueB->getFirstTerminator());
    if (TS < HEXAGON_PACKET_SIZE)
      Spare += HEXAGON_PACKET_SIZE-TS;     // <=
  }
  if (FP.FalseB) {
    FS = std::distance(FP.FalseB->begin(),
      FP.FalseB->getFirstTerminator());
    if (FS < HEXAGON_PACKET_SIZE)
      Spare += HEXAGON_PACKET_SIZE-TS;     // <= FS ???
  }
  unsigned TotalIn = TS+FS;
  ....
}