[Bug middle-end/71310] Bitfields cause load hit store with smaller store and larger load

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71310

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

           What    |Removed                     |Added
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           Keywords|                            |wrong-code
                 CC|                            |rguenth at gcc dot gnu.org

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
That said - it is wrong-code (under the C++ memory model) to use DImode here
if for example you add a int x; field after csum_valid as the access is
required
to not cause any data races with that field (well, it's a load data race
only...)