[clang] [Clang][AArch64] Add missing SME functions to header file. (PR #75791)

[Paul Walker via cfe-commits]

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@@ -10570,6 +10570,26 @@ Value *CodeGenFunction::EmitAArch64BuiltinExpr(unsigned BuiltinID,
     return Builder.CreateCall(F, llvm::ConstantInt::get(Int32Ty, HintID));
   }
 
+  if (BuiltinID == clang::AArch64::BI__builtin_arm_get_sme_state) {
+    // Create call to __arm_sme_state and store the results to the two pointers.
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paulwalker-arm wrote:

I see what you mean. In which case I thinking creating specific builtins to avoid having to go through memory would be better because I don’t get the point of creating a builtin that has a less efficient interface than the function it targets.  That said, I’ll not push for it if you feel this implementation is better.

https://github.com/llvm/llvm-project/pull/75791