[clang] [llvm] [RISCV] Add Smrnmi extension (PR #111668)

[Craig Topper via cfe-commits]

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@@ -66,6 +66,8 @@ def riscv_sret_glue : SDNode<"RISCVISD::SRET_GLUE", SDTNone,
                              [SDNPHasChain, SDNPOptInGlue]>;
 def riscv_mret_glue : SDNode<"RISCVISD::MRET_GLUE", SDTNone,
                              [SDNPHasChain, SDNPOptInGlue]>;
+def riscv_mnret_glue : SDNode<"RISCVISD::MNRET_GLUE", SDTNone,
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topperc wrote:

RISCVISD::MNRET_GLUE isn't defined in this patch so it should definitely be removed.

https://github.com/llvm/llvm-project/pull/111668