[Bug c/82817] C frontend errors on SSA name from REG_EXPR

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82817

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-11-03
                 CC|                            |rguenth at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
The GIMPLE FE also doesn't like that some variable names created by the
middle-end contain '.'.

I belive it would be good to "fix" create_tmp_var_name.  I suppose it
intentionally uses ASM_FORMAT_PRIVATE_NAME to avoid clashes with user
vars - but that should only be necessary for globals which should better
use a more "manual" way of creating the name.