[llvm] [clang] [RISCV] Add -march support for many of the S extensions mentioned in the profile specification. (PR #79399)

[Luke Lau via cfe-commits]

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@@ -91,9 +91,24 @@ on support follow.
      ``E``            Supported (`See note <#riscv-rve-note>`__)
      ``H``            Assembly Support
      ``M``            Supported
+     ``Shcounterenw`` Assembly Support
+     ``Shgatpa``      Assembly Support
+     ``Shtvala``      Assembly Support
+     ``Shvsatpa``    Assembly Support
+     ``Shvstvala``    Assembly Support
+     ``Shvstvecd``    Assembly Support
      ``Smaia``        Supported
      ``Smepmp``       Supported
      ``Ssaia``        Supported
+     ``Ssccptr``      Assembly Support
+     ``Sscounterenw`` Assembly Support
+     ``Sstc``         Assembly Support
+     ``Sstvala``      Assembly Support
+     ``Sstvecd``      Assembly Support
+     ``ssu64xl``      Assembly Support
+     ``Svade``        Assembly Support
+     ``Svadu``        Assembly Support
+     ``Svbare``       Assembly Support
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lukel97 wrote:

Should these link to the #riscv-profiles-extensions-note like with the Z extensions from the profiles spec?

https://github.com/llvm/llvm-project/pull/79399