This test just checks that we don't crash and has no further information.

Back in 2018 adding custom type checking to the intrinsic would have
added a larger downstream diff, but since 8392f1c it has the
custom type checking so we can overload it for capabilities.

The header link.h might not exist for baremetal targets. Only include it
when we actually have the c18n support.

Can't use the MTE inline assembly when building for purecap Morello

…rsing

No functional change intended.

This may have been needed before ISAInfo handled custom extensions, but
now we can just defer to ISAInfo. No functional change intended

The upcoming standard no longer includes cgetoffset (and cgetaddr has
been removed in ISAv9). For now the assembly code still accepts cgetaddr
and converts it to a move, but use an intrinsic call instead as that can
be optimized to a subregister read on next use rather the requiring an
explicit move.

We have to use XLenVT for getting the intrinsic type otherwise we end
up triggering an assertion in LegalizeDAG.