[llvm] [MemoryBuiltins] Cache the result of ObjectOffsetSizeVisitor::visit. #64796 (PR #65326)

[Bevin Hansson via llvm-commits]

bevin-hansson wrote:

Aha, alright. I suppose it makes sense, the tests are probably not built with something like _FORTIFY_SOURCE that would use the intrinsic.

Is the remaining regression acceptable?

https://github.com/llvm/llvm-project/pull/65326