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Re: RFC: using clz for comparing to zero on the tree level.
- From: Richard Henderson <rth at redhat dot com>
- To: Andrew Pinski <pinskia at physics dot uc dot edu>
- Cc: gcc at gcc dot gnu dot org
- Date: Wed, 7 May 2003 22:28:52 -0700
- Subject: Re: RFC: using clz for comparing to zero on the tree level.
- References: <5AB6DFAC-80F5-11D7-9D5E-000393A6D2F2@physics.uc.edu>
On Wed, May 07, 2003 at 09:35:30PM -0400, Andrew Pinski wrote:
> Would it be okay for a patch which transforms some comparisons to
> use clz if clz is defined at 0 for SImode or DImode and the target
> wants it (these are all are wins for PPC in terms of size and speed).
If it's specific for PowerPC, but not otherwise.
r~