Re: [RFC,PATCH] Provide get_attr functions with alternative parameter

[Paolo Bonzini <bonzini at gnu dot org>]

> The attached patch provides getter functions with an additional
> argument specifying the number of the alternative for which the
> attribute value should be returned. In order to get the old behaviour
> the functions need to be invoked with -1 as alternative number. Inline
> wrappers with the old function names are provided in order to keep
> backwards compatibility.

Interesting!  Is there a reason (in the patch you're working on) why the 
inline wrappers couldn't just do

  extract_constrain_insn_cached (insn);
  return get_alt_attr_blah_blah (insn, which_alternative);

instead of supporting the special alternative number -1 in 
get_alt_attr_blah_blah?  (I can see the reason could be code bloat, or 
GCC deciding not to inline get_attr_blah_blah, but I thought I'd just ask).

Paolo