3.3 vs 3.1 on powerpc

[Devang Patel]

On Thursday, November 21, 2002, at 06:18  PM, Brad Lucier wrote:

> I've been doing some tests of 3.3 versus (Apple's) 3.1 on PowerPC 
> Darwin.

> With -fnew-ra and the new scheduler, I'm expecting 3.3 to kick serious 
> butt
> compared to 3.1 on some of my floating-point codes---studying the 
> scheduler
> output indicates a 50%+ improvement when scheduled for -mcpu=7400.  
> (For
> some reason, the scheduler has a more difficult time with -mcpu=7450.)
> Some of this speedup results from fewer spills.
>
> Unfortunately, I can't figure out how to get mainline 3.3 to accept 
> some
> of Apple's headers, so I can't actually run anything yet ... ;-).

Framework header's support is not available in FSF gcc.
However, you can checkout gcc3 from Darwin CVS. Geoff just finished 
merge
with FSF mainline. (We have not yet fully qualified it for release, yet)

-Devang