[llvm] [BOLT][AArch64] Handle OpNegateRAState to enable optimizing binaries with pac-ret hardening (PR #120064)

[Paschalis Mpeis via llvm-commits]

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@@ -385,9 +395,14 @@ Error BinaryFunctionPassManager::runAllPasses(BinaryContext &BC) {
 
   Manager.registerPass(std::make_unique<ValidateMemRefs>(NeverPrint));
 
-  if (opts::Instrument)
+  if (opts::Instrument) {
+    if (opts::AllowPacret) {
+      BC.errs() << "BOLT-ERROR: Instrumenting binaries with pac-ret hardening "
+                   "is not supported.\n";
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paschalis-mpeis wrote:

Can you add a third (minimal) lit test to cover this case?

https://github.com/llvm/llvm-project/pull/120064