[clang] [clang][AArch64] Pass down stack clash protection options to LLVM/Backend (PR #68993)

[Momchil Velikov via cfe-commits]

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@@ -1076,6 +1076,16 @@ void CodeGenModule::Release() {
                                 "sign-return-address-with-bkey", 1);
   }
 
+  if (Arch == llvm::Triple::aarch64 || Arch == llvm::Triple::aarch64_be) {
----------------
momchil-velikov wrote:

Stack probing needs to be enabled by module-level attributes or it won't have 
effect in LLVM generated functions.

https://github.com/llvm/llvm-project/pull/68993
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