[clang] [llvm] [RISCV][MC] Support experimental extensions Zvbc32e and Zvkgs (PR #103709)

[Craig Topper via cfe-commits]

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@@ -750,8 +750,13 @@ Error RISCVISAInfo::checkDependency() {
     return getError(
         "'zvbc' requires 'v' or 'zve64*' extension to also be specified");
 
-  if ((Exts.count("zvkb") || Exts.count("zvkg") || Exts.count("zvkned") ||
-       Exts.count("zvknha") || Exts.count("zvksed") || Exts.count("zvksh")) &&
+  if (Exts.count("zvbc32e") && !Exts.count("zve32x"))
+    return getError(
+        "'zvbc32e' requires 'v' or 'zve32*' extension to also be specified");
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topperc wrote:

Can we say "requires 'v' or 'zve*' extension to also be specified" like the Zvk extension? That way the way the user doesn't need to think about Zve64* implying Zve32x.

https://github.com/llvm/llvm-project/pull/103709