[Bug libstdc++/64443] New std::string implementation breaks tests on AArch64.

[belagod at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64443

--- Comment #3 from Tejas Belagod <belagod at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> >This commit seems to be breaking libstdc++-v3 runs on AArch64.
> 
> Is this under Linux or with newlib?

newlib. When run on a fast-model(simulator) they fail by raising an exception.
I'll post more info on the kind of exception rasied when I've investigated a
bit more...