LinuxPPC & gcc optimizer flags

Albrecht Dreß ad at MPIfR-Bonn.MPG.de
Thu Jul 1 20:23:34 EST 1999


Franz Sirl wrote:
> Which compiler did you use? Up to egcs-1.1.2, -mcpu=750 is a no-op :-). Did

egcs 1.1.2.  This explains the identical results of no cpu and '750 flags...

> you also try different mixings of -march= and -mtune=?

`arch´ doesn't work at all.  Didn't check tune yet...

> If you are on R5, I can provide you gcc-2.95pre RPM's which support -mcpu=750.

Thanks, but speed is a less critical issue for us than reliability, so I live
with cpu=603 and wait for the final release....

Thanks, Albrecht.

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