[Bug c++/54130] Recognize builtins with bool return type

[glisse at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54130

--- Comment #9 from Marc Glisse <glisse at gcc dot gnu.org> 2012-08-01 09:22:37 UTC ---
I realize that several (not all) of the things discussed here assume that
functions returning bool and int are binary compatible, which is likely true on
most platforms but there might be exceptions.