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Re: CGEN-generated files vs GPL
> I believe the source code (i.e., what you'd change to modify the
> intrinsics) needs including in the GCC release tarballs. I don't
> think CGEN itself needs including, any more than OCaml needs
> including because the ARM NEON intrinsic generators are written in
> OCaml.
The same cgen files produce all the binutils tools as well; they're
currently in src/cgen/cpu/mep-* although they (1) should be in
src/cpu/* and (2) need to be trimmed (the vendor has asked that the
default configuration be core-only).
Alternatively, a copy of just the one *.cpu file could be added to
gcc, but that would mean maintaining the same file in two places.
src/cgen is 3.7M; src/cpu is 1.5M