On Wed, Dec 8, 2010 at 4:37 AM, Joakim Tjernlund <joakim.tjernl...@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