[llvm-commits] [llvm] r161258 - in /llvm/trunk: include/llvm/CodeGen/LiveInterval.h lib/CodeGen/LiveInterval.cpp lib/CodeGen/LiveIntervalAnalysis.cpp

[Jakob Stoklund Olesen]

On Aug 6, 2012, at 1:20 PM, Lang Hames <lhames at gmail.com> wrote:
> Completely eliminate VNInfo flags.

I think we can soon eliminate the VNInfo class entirely, and just put a SlotIndex array in LiveInterval:

class LiveInterval {
  struct Segment {
    SlotIndex start;
    SlotIndex end;
    unsigned valno;
  };
  SmallVector<Segment, 4> Ranges;
  SmallVector<SlotIndex, 4> Defs;
}

This would save all the memory previously used by the VNInfo allocator.

/jakob

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