[Bug target/99581] [11 Regression] internal compiler error: during RTL pass: final - void QTWTF::TCMalloc_PageHeap::scavengerThread() since r11-7526

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99581

--- Comment #9 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #8)
> Rather than a target hook, isn't it a property of a particular constraint?
> This constraint implies "m", this one doesn't?
> Make the implies "m" behavior the default one and add some syntax in the
> *.md files to declare constraints that have the new behavior?
> Kind like define_memory_constraint vs. define_special_memory_constraint
> difference.

Yes, I think it is better solution.  I guess aarch64 might have the same
problem as in this PR.  We should have different treatment of memory
constraints even for one target.