[llvm] [aarch64] XOR the frame pointer with the stack cookie when protecting the stack (PR #161114)

[Pan Tao via llvm-commits]

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@@ -28965,7 +28965,25 @@ void AArch64TargetLowering::ReplaceNodeResults(
 bool AArch64TargetLowering::useLoadStackGuardNode(const Module &M) const {
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PanTao2 wrote:

I added the EOR instruction in AArch64InstrInfo::expandPostRAPseudo. Could you please further review it?

https://github.com/llvm/llvm-project/pull/161114