Lucas Tanure wrote:
> My two cents,
> please read :
> http://www.t4f.org/articles/optimization-of-microchip-pic-xc8-compiler-in=
-free-and-pro-mode/
>  =20
I could be wrong here but I think he is unreasonable to conclude this is=20
deliberate "de-optimisation". It may be that the code generation stage=20
of the compiler  is simply designed such that it always uses memory=20
locations to store temporary values (thereby avoiding having to worry=20
about them being clobbered by instruction groups that need to use W) and=20
that the optimiser is expected to remove those memory accesses where it=20
is safe to do so. Disable the optimiser and you get code that does a=20
shedload of unnessacery memory access.
--=20
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