Re: [eigen] vectorization and ABI

[Benoît Jacob <jacob@xxxxxxxxxxxxxxx>]

ok, just for the record there was a little mistake in what I said... the flags 
of expressions should be computed using PacketAccessBit, not Actual. So it 
really is:

*** what I propose instead ***

in util/Constants.h :

const unsigned int PacketAccessBit = 0x8;

#ifdef EIGEN_VECTORIZE
const unsigned int ActualPacketAccessBit = PacketAccessBit ;
#else
const unsigned int ActualPacketAccessBit = 0x0;
#endif

in other files:

// just replace PacketAccessBit by ActualPacketAccess and you're done

Flags = PacketAccessBit | SomeMoreBits;

...

if(Flags & ActualPacketAccessBit)

...



On Thursday 03 July 2008 11:05:29 Benoît Jacob wrote:
>  *** what I propose instead ***
>
>  in util/Constants.h :
>
>  const unsigned int PacketAccessBit = 0x8;
>
>  #ifdef EIGEN_VECTORIZE
>  const unsigned int ActualPacketAccess = PacketAccessBit ;
>  #else
>  const unsigned int PacketAccessBit = 0x0;
>  #endif
>
>  in other files:
>
>  // just replace PacketAccessBit by ActualPacketAccess and you're done
>
>  Flags = ActualPacketAccess | SomeMoreBits;
>
>  ...
>
>  if(Flags & ActualPacketAccess)
>
>  ...

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