[llvm-branch-commits] [llvm] [AArch64][PAC] Lower authenticated calls with ptrauth bundles. (PR #85736)

[Ahmed Bougacha via llvm-branch-commits]

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@@ -8640,6 +8642,15 @@ void SelectionDAGBuilder::LowerCallTo(const CallBase &CB, SDValue Callee,
           CB.countOperandBundlesOfType(LLVMContext::OB_preallocated) != 0)
       .setCFIType(CFIType)
       .setConvergenceControlToken(ConvControlToken);
+
+  // Set the pointer authentication info if we have it.
+  if (PAI) {
+    if (!TLI.supportPtrAuthBundles())
+      report_fatal_error(
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ahmedbougacha wrote:

I don't think testing this one is reasonable;  we couldn't even put it in AArch64 and would have to pollute another innocent backend

https://github.com/llvm/llvm-project/pull/85736