ARM optimisation -- where to discuss?

Michael Abbott michael@araneidae.co.uk
Mon Jun 1 12:38:00 GMT 2009


I'm seeing some ARM optimisation weaknesses (with gcc 4.3.2, so perhaps 
I'm behind the times) and I was wondering if anyone on this list knows a 
good place to report and discuss this?

The sort of things I'm seeing are: poor register allocation resulting in 
unecessary register spillage, not taking __builtin_expect seriously 
enough, and unnecessarily preloading a constant into a register so 
spilling yet another register!  It's just one bit of tight code where I 
was paying particular attention to timing.

Anyhow, probably a bit off topic, but I'm sure some folk here know what 
I'm talking about.

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