[llvm-branch-commits] Add pointer field protection feature. (PR #133538)

[Peter Collingbourne via llvm-branch-commits]

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@@ -362,6 +362,17 @@ class LangOptionsBase {
     BKey
   };
 
+  enum class PointerFieldProtectionKind {
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pcc wrote:

I think that allowing this level of customization should be implemented as part of the separate opt-in solution (e.g. it may be a property of the qualifier). It is generally a reasonable assumption that operator new is the same for all types. In the unlikely case that it isn't, we aren't really doing anything wrong by using the malloc-derived decision here. It just means that we lose some entropy from the type or the pointer tag.

https://github.com/llvm/llvm-project/pull/133538