This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH] Optimize x*x*x*x*x*x using 3 multiplications.

Robert Dewar wrote:

Optimize x*x*x*x*x*x using 3 multiplications.


It is interesting to note that in general this kind of optimization decreases
accuracy (it is more accurate to do the full 5 multiplications).

Indeed, very interesting! If you have got two more spare minutes, I would be curious to know a sketch of the explanation of this.

Thanks in advance,
Paolo.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]