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Re: Jaguar/Panther compatibility
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Re: Jaguar/Panther compatibility


  • Subject: Re: Jaguar/Panther compatibility
  • From: Andrew Pinski <email@hidden>
  • Date: Tue, 1 Jul 2003 15:25:52 -0400

On Tuesday, Jul 1, 2003, at 14:26 US/Eastern, Chuck Soper wrote:
Just to confirm...
Will installing the Dec2002gccUpdater.pkg (gcc 3.3) allow me to generate G5 optimized code using Jaguar and a G4 machine?
Yes, there is a new schedular for the G5 (970), it might be named as power4 though, using -mtune=power4.
Also, you can build 64bit code (not 64bit pointers or longs though, just long long for now) using the option -mpowerpc64.

How important is this?
You should check out Shark (part of the CHUD tools) to see if this is important or not.

Are there any disadvantages to installing the Dec2002gccUpdater.pkg?
Yes, pre-compiled headers format changed again and is not supported by PBX, but you can still use the old 3.2 based gcc for that,
run `gcc_select 3.1' to go back to 3.1.

Also read these two technotes:
<http://developer.apple.com/technotes/tn/tn2087.html>
<http://developer.apple.com/technotes/tn/tn2086.html>


Thanks,
Andrew Pinski
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 >Re: Jaguar/Panther compatibility (From: Chuck Soper <email@hidden>)

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