[Bug target/124174] aarch64: NEON vadd should be well-defined on overflow

[rearnsha at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124174

--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
Yeah, this is all about interpretation of the ACLE specification.  If Alex's
interpretation is correct then GCC is wrong.  If my interpretation is correct,
then there's no bug here.

But I think ACLE could be clearer on this case, so I think we should wait for
resolution there.