ATTRIBUTE_UNUSED

[Andrew Cagney]

Ben Elliston wrote:
> 
>    How about just
>    -      CGEN_CPU_DESC cd;
>    +      CGEN_CPU_DESC cd ATTRIBUTE_UNUSED;
> 
> Just out of interest, what is the policy concerning code generated for
> inclusion in libopcodes and gdb (the sims)?  Can we depend on GCC extensions
> like these?  My understanding was that cagney really dislikes them, instead
> preferring a new gcc option to allay unused parameter warnings.

FYI, GDB does not accept ATTRIBUTE_UNUSED patches (state of the art GCC
has -Wno-unused-param making that macro unnecessary) I don't have an
opinion on the SIM directory.

	Andrew