[llvm] [AArch64] Codegen for AArch64 Return Address Signing Hardening (PR #176187)

[Anatoly Trosinenko via llvm-commits]

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@@ -10514,6 +10514,23 @@ AArch64InstrInfo::getOutliningCandidateInfo(
                                    ->getInfo<AArch64FunctionInfo>()
                                    ->getSignReturnAddressCondition();
   if (RASignCondition != SignReturnAddress::None) {
+    // Candidates that have Return Address Signing Hardening enabled are
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atrosinenko wrote:

[nit] #176171 switched to the term "... Authentication Hardening"

https://github.com/llvm/llvm-project/pull/176187