Eric Botcazou <ebotcazou at gcc dot> changed:

           What    |Removed                     |Added
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2018-02-02
     Ever confirmed|0                           |1

--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot> ---
Calling this standard C is really questionable.  This goes awry on 64-bit RISC
architectures with strict-alignment requirement because get_inner_reference
returns a negative bit position and passes it down to the bitfield extraction
machinery, which expects only non-negative bit positions.

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