[Bug c/109284] New: __VA_OPT__ triggers internal compiler error

[jens.gustedt at inria dot fr via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109284

            Bug ID: 109284
           Summary: __VA_OPT__ triggers internal compiler error
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jens.gustedt at inria dot fr
  Target Milestone: ---

Created attachment 54755
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54755&action=edit
simple pre-pro only file that crashes gcc-12

Hi,
the attached code, meant to provide a feature test for `__VA_OPT__`, crashes my
compiler:

gcc-12-va-opt-bug.c:15:1: internal compiler error: unspellable token PADDING

I am on an standard Ubuntu, nothing fancy:

gcc version 12.1.0 (Ubuntu 12.1.0-2ubuntu1~22.04) 

Jens