In my original proposal, I said this:
> It includes a bunch of macro->hook conversions, mostly because the
> hooks need an additional parameter (the function) to detect which ones
> are Renesas ABI and which are GCC ABI.
The original documentation at least hinted that the parameter was a
function type:
> @deftypefn {Target Hook} bool TARGET_PROMOTE_PROTOTYPES (tree @var{fntype})
Kazu's calls are in the C++ stuff, I don't know if g++ and Renesas C++
are compatible anyway (I doubt it), but that's what would be affected.
The original work was for C compatibility.