[Bug target/78176] [MIPS] miscompiles ldxc1 with large pointers on 32-bits

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78176

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu.org

--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> The issue may stem from the C front end where the dumps start off as below.
> Note that the '-1' in kappa-1 has ended up being represented as 1073741823
> (0x3fffffff) presumably owing to the fact it will be multiplied by 4
> eventually and hence be 'safe'.

All pointer calculations are done in sizetype and it is unsigned.  This kind of
issues generally come from the RTL level, maybe expansion here.