[PATCH] D133373: [docs][RISCV] Document status of scalar crypto extensions

[Philip Reames via Phabricator via llvm-commits]

reames added inline comments.


================
Comment at: llvm/docs/RISCVUsage.rst:96
+``Zbkb``, ``Zbkx``
+  Pattern matching support for these instructions is incomplete.
+
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craig.topper wrote:
> Can you file an issue for what is missing?
This wasn't a deep dive.

For Zbkb, I had observed we could use PACK variants for building constants or build_vectors of small vector types.  Not clear how much we can/should push here.  

For Zbkx, we appear to have no pattern matching beyond intrinsics.  


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  https://reviews.llvm.org/D133373/new/

https://reviews.llvm.org/D133373