Commit 6f46e545 authored by Tanya Lattner's avatar Tanya Lattner
Browse files

Merge in fix for PR4910. 

llvm-svn: 82428
parent b2d5a6d2

llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp

+4 −3
Original line number Diff line number Diff line
@@ -527,14 +527,15 @@ static void removeRange(LiveInterval &li, unsigned Start, unsigned End, 
      if (!li_->hasInterval(*SR))

        continue;

      LiveInterval &sli = li_->getInterval(*SR);

      unsigned RemoveStart = Start;

      unsigned RemoveEnd = Start;

      while (RemoveEnd != End) {

        LiveInterval::iterator LR = sli.FindLiveRangeContaining(Start);

        LiveInterval::iterator LR = sli.FindLiveRangeContaining(RemoveStart);

        if (LR == sli.end())

          break;

        RemoveEnd = (LR->end < End) ? LR->end : End;

        sli.removeRange(Start, RemoveEnd, true);

        Start = RemoveEnd;

        sli.removeRange(RemoveStart, RemoveEnd, true);

        RemoveStart = RemoveEnd;

      }

    }

  }