[llvm-branch-commits] Add llvm.protected.field.ptr intrinsic and pre-ISel lowering. (PR #151647)

[Nikita Popov via llvm-branch-commits]

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@@ -461,6 +463,162 @@ bool PreISelIntrinsicLowering::expandMemIntrinsicUses(
   return Changed;
 }
 
+namespace {
+
+enum class PointerEncoding {
+  Rotate,
+  PACCopyable,
+  PACNonCopyable,
+};
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nikic wrote:

Unused?

https://github.com/llvm/llvm-project/pull/151647