[llvm-commits] [llvm] r68455 - /llvm/trunk/Makefile.rules

[Duncan Sands]

Hi Chris,

> >> Avoid -O3 on Darwin for now.
> >
> > is this really a Darwin issue?  If it's not clear,
> > how about using -O2 on all platforms?  People using
> > FC8 have regularly been reporting miscompilations of
> > llvm-2.5 when building with optimization for example.
> > So perhaps this is a more general problem.
> 
> I would be supportive of using -O2 everywhere, but this will  
> significantly impact our compile times (llvm will compile slower).

did you measure this?  Since Darwin just switched from -O3
to -O2 I guess the impact should now be clear for Darwin users.
Is it really significant?

Ciao,

Duncan.