[clang] [llvm] [RISCV][llvm] Support Smpmpmt version 0.6 (PR #166322)

[Craig Topper via llvm-commits]

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@@ -956,6 +956,9 @@ def FeatureStdExtSsdbltrp
 def FeatureStdExtSmepmp
     : RISCVExtension<1, 0, "Enhanced Physical Memory Protection">;
 
+def FeatureStdExtSmpmpmt
+    : RISCVExtension<0, 6, "PMP-based Memory Types Extension">;
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topperc wrote:

Shouldn't this be RISCVExperimentalExtension until it is ratified?

https://github.com/llvm/llvm-project/pull/166322