[Bug middle-end/91708] [10 regression][ARM] Bootstrap fails in gen_movsi, at config/arm/arm.md:5258

[wilco at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91708

--- Comment #22 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Richard Earnshaw from comment #21)
> But dropping in a char* will give a more restrictive alias set, so that
> isn't wrong, even if it is suboptimal

The alias set could be anything given CSE changes one MEM to another without
any checks (it's not clear whether it even checks other attributes like
volatile).