[GEM-dev] GemPixConvertAltivec...
Mathieu Bouchard
matju at artengine.ca
Mon Oct 30 21:35:05 CET 2006
On Mon, 30 Oct 2006, james tittle wrote:
> ...-Os is preferred for optimized builds over -O2 or -O3,
Why? the GCC manual says that -Os is for "optimising for size", which
isn't exactly optimising for speed. If code size has such a positive
impact on speed, does that mean that the PowerPC caches are small and/or
the bus of the main RAM is slow ?
Btw, -Os disables most alignment optimisations. I thought that most
processors are quite sensitive to alignment; is that belief outdated?
_ _ __ ___ _____ ________ _____________ _____________________ ...
| Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
| Freelance Digital Arts Engineer, Montréal QC Canada
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