[PATCH] D141032: [Clang][RISCV] Expose vlenb to user

[Yueh-Ting (eop) Chen via Phabricator via cfe-commits]

eopXD added a comment.

Upon a second thought, with future extensions of the intrinsics, we will add rounding mode and exception intrinsics. The exposure of vxsat, vxrm, and vcsr in vread_csr and vwrite_csr will confuse user and we should remove them. Furthermore, vstart is pretty much always kept to zero, and intrinsic users probably should not have access to them.

With the considerations above, I think vread_csr and vwrite_csr can be removed in the future when the rounding mode and exception intrinsics are added. This is why this patch is opening up a separate function to provide access to vlenb and not choose to extend another member in the enum.


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  https://reviews.llvm.org/D141032/new/

https://reviews.llvm.org/D141032