[clang] [PAC][clang] Fix ptrauth module flags behavior (PR #204226)

[Jakub Chlanda via cfe-commits]

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@@ -1480,14 +1480,17 @@ void CodeGenModule::Release() {
     if (!LangOpts.isSignReturnAddressWithAKey())
       getModule().addModuleFlag(llvm::Module::Min,
                                 "sign-return-address-with-bkey", 2);
-
-    if (LangOpts.PointerAuthELFGOT)
-      getModule().addModuleFlag(llvm::Module::Error, "ptrauth-elf-got", 1);
+  }
+  if (T.isAArch64()) {
+    getModule().addModuleFlag(
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jchlanda wrote:

Should `"ptrauth-elf-got"` also be under `isOSLinux`?

https://github.com/llvm/llvm-project/pull/204226