[llvm] [AArch64][PAC] Support ptrauth builtins and -fptrauth-intrinsics. (PR #65996)

[Anatoly Trosinenko via llvm-commits]

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@@ -3867,6 +3867,14 @@ defm strict_return : BoolFOption<"strict-return",
             " of a non-void function as unreachable">,
   PosFlag<SetTrue>>;
 
+let Group = f_Group in {
+  let Visibility = [ClangOption,CC1Option] in {
+    def fptrauth_intrinsics : Flag<["-"], "fptrauth-intrinsics">,
+      HelpText<"Enable pointer-authentication intrinsics">;
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atrosinenko wrote:

> Enable pointer-authentication intrinsics

Probably extra "-".

https://github.com/llvm/llvm-project/pull/65996