[Bug target/125941] AArch64: Inefficient code generation for non-constant svbool_t initializer

[Chris.Bazley at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125941

--- Comment #2 from Christopher Bazley <Chris.Bazley at arm dot com> ---
> So if the ticket is about the spills then that's not an issue. if it's about adding PMOV support, then yes :)

The context is this email thread:
https://inbox.sourceware.org/gcc-patches/CAFiYyc19Ks7-mK047MWUmF_mfTdX6KOfQBjutA8fjnhDAvTk7w@mail.gmail.com/

Richard Biener is saying that the CTOR was previously 'invalid', although the
test is pre-existing and the test passes without the assertion that he wants to
add. He is also saying that vec_initvnx16bibi must be implemented.

It sounds as though you are saying that there is nothing wrong with the code
currently generated by GCC, despite the fact that vec_initvnx16bibi has not
been implemented.

Would adding PMOV support entail implementing vec_initvnx16bibi? For all
targets, or only for targets with SVE2p1?