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: Inner-loop optimization regression from 3.3 to 3.4


On Sat, Oct 18, 2003 at 10:37:27PM +0200, Jan Hubicka wrote:
> Or you mean just check whether the proposed sequence is cheaper than
> sequence of two setcc patterns and logical?

Or one setcc instead of the proposed operation, yes.
It may be very cheap to get -1 via emit_store_flag.


r~


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