[PATCH] D134648: [LangRef] Update text for vscale to be more flexible but maintain original intent.

[Amara Emerson via Phabricator via llvm-commits]

aemerson added a comment.

In D134648#3820765 <https://reviews.llvm.org/D134648#3820765>, @tschuett wrote:

> `llvm.vscale()` denotes vl and `llvm.aarch64.sme.vscale()` denotes svl. From the context you should know which one you need.

There are times, such as in streaming-compatible functions, where it's unknown at compile time which mode is active.

> You want to change the semantics of vscale in a Phabricator Diff without an RFC on Discourse?

I think this patch was made in good faith in response to requests for a langref update in another patch.


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  https://reviews.llvm.org/D134648/new/

https://reviews.llvm.org/D134648