[PATCH] D32737: [Constants][SVE] Represent the runtime length of a scalable vector

[Sanjoy Das via Phabricator via llvm-commits]

sanjoy added a comment.

I've only lightly read the spec, but it looks like the vector length can be controlled by writing to the `ZCR_ELn` registers (so, e.g. user code could make a syscall to change the vector length)?  If that's accurate, I think a constant `vscale` is not sufficient.


https://reviews.llvm.org/D32737