[Bug preprocessor/77410] macro reference supplied as macro reference argument is not expanded

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77410

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is correct because the token that gets expanded is MDNMx and not MDNM.
When you have:
#define MDNM utl1
#define m1(mdnm) mdnm##x
#define m2(mdnm) m1(mdnm)

m2(MDNM)
first m2 gets expanded to m1(mdnm) and then m1(MDNM) gets expanded including
the argument.