PowerPC optimization regression

[David Edelsohn]

On Wed, Dec 8, 2010 at 4:37 AM, Joakim Tjernlund
<joakim.tjernlund@transmode.se> wrote:
>
> I have noticed gcc 4.4.5 often produces less optimzed code
> than the old 3.4.6. Below is the latest example. I am
> starting to wonder if I need rebuild gcc 4.4.5 and/or
> add new options to gcc when I compile. Any insight?

Jocke,

As Ian mentioned, please open a performance regression bug report on
GCC Bugzilla and add me, Mike Meissner and Peter Bergner to the CC
list.

This might be a lingering result of the GCC SSA transition and not a
PowerPC-specific regression, although the symptom has more impact on
PowerPC.

Thanks, David