[clang] [llvm] [CodeGen][AArch64][FMV] PAC the stub_helper's frame on arm64e (PR #84704)

[Ahmed Bougacha via llvm-commits]

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@@ -2085,6 +2099,37 @@ void AArch64AsmPrinter::emitMachOIFuncStubHelperBody(Module &M,
                                    .addImm(2),
                                *STI);
 
+  if (TM.getTargetTriple().isArm64e()) {
+    //   autibsp
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ahmedbougacha wrote:

There is not, but send me your patch and I'll tack it onto the relevant commit (and split the tail-call check emission into a helper)

https://github.com/llvm/llvm-project/pull/84704