[clang] [llvm] [RISCV] Support spacemit vsmtvdotii externsions (PR #202533)

[Luke Lau via cfe-commits]

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@@ -867,6 +867,8 @@ def VR : VReg<!listconcat(VM1VTs, VMaskVTs),
   let DecoderMethod = "DecodeSimpleRegisterClass<RISCV::V0, 32>";
 }
 
+// def VRV0V1 : VReg<!listconcat(VM1VTs, VMaskVTs), (add V0, V1), 1>;
+
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lukel97 wrote:

Looks like a leftover comment?

https://github.com/llvm/llvm-project/pull/202533