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Re: [PATCH] Enabling Software Prefetching by Default at -O3
>
> ?fprefetch-loop-arrays
> ! Common Report Var(flag_prefetch_loop_arrays) Init(2) Optimization
For consistency with other options, I would suggest to use Init(-1)
for an "uninitialized" option. As Joseph said, this should be done
differently in the future, but for now using -1 is the usual setting.
I didn't understand how (or if) Joseph will implement the framework to
set default values. As I understand it, Init(X) should only set the
value X to the Var if it is not set by anything else before. Then, we
can move the default values back to the *.opt files. Otherwise, such a
patch would be an improvement.
Cheers,
Manuel.