[Bug c/61779] gcc -Og fails with impossible constraint on legal C code

[zeccav at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61779

--- Comment #1 from Vittorio Zecca <zeccav at gmail dot com> ---
I forgot to say that gcc 4.9.0 fails but compiles correctly on gcc 4.8.3.