[PATCH] D95588: [RISCV] Implement the MC layer support of P extension

[Jim Lin via Phabricator via llvm-commits]

Jim added a comment.

In D95588#3622052 <https://reviews.llvm.org/D95588#3622052>, @sunshaoce wrote:

> Hello @Jim! We are developing the P extension, are you still maintaining this patch? Or would you mind co-development together?

Yes, I am still on developing the P extension. But it seems spec has the issue https://github.com/riscv/riscv-p-spec/issues/137 need to clarify.
And some instruction (CLZ, FSR and FSRI) in Zbpbo only be aliased to B extension on RV32. It is complicated if P extension are enabled on RV64.


Repository:
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  https://reviews.llvm.org/D95588/new/

https://reviews.llvm.org/D95588