[Bug c/61903] signed integer overflow in expmed.c store_fixed_bit_filed_1

[zeccav at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61903

--- Comment #1 from Vittorio Zecca <zeccav at gmail dot com> ---
Same runtime error at line 1076 of expmed.c
"&& v == ((HOST_WIDE_INT) 1 << bitsize) - 1)"
compiling pr28045.c