[clang] [clang] Implement function pointer type discrimination (PR #96992)

[Daniil Kovalev via cfe-commits]

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@@ -4228,6 +4228,8 @@ defm ptrauth_vtable_pointer_address_discrimination :
 defm ptrauth_vtable_pointer_type_discrimination :
   OptInCC1FFlag<"ptrauth-vtable-pointer-type-discrimination", "Enable type discrimination of vtable pointers">;
 defm ptrauth_init_fini : OptInCC1FFlag<"ptrauth-init-fini", "Enable signing of function pointers in init/fini arrays">;
+defm ptrauth_function_pointer_type_discrimination : OptInCC1FFlag<"ptrauth-function-pointer-type-discrimination",
+  "Enabling type discrimination on C function pointers">;
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kovdan01 wrote:

Nit: above, "Enable" is used instead of "Enabling". Consider using "Enable" here as well to keep things consistent. Feel free to ignore though.

https://github.com/llvm/llvm-project/pull/96992