[llvm] [clang] [RISCV] Add support for Smepmp 1.0 (PR #78489)

[Craig Topper via cfe-commits]

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@@ -116,6 +116,7 @@
 
 // CHECK-NOT: __riscv_smaia {{.*$}}
 // CHECK-NOT: __riscv_ssaia {{.*$}}
+// CHECK-NOT: __riscv_smepmp {{.*$}}
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topperc wrote:

This is the experimental extension section according to the comment on 115. I guess we're bad at moving things out of this section when they go non-experimental

https://github.com/llvm/llvm-project/pull/78489