[llvm] [IR][NFC] Add LoadStoreProperties to copy load/store attrs (PR #206470)

[Antonio Frighetto via llvm-commits]

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@@ -172,6 +172,14 @@ class AllocaInst : public UnaryInstruction {
   }
 };
 
+/// A structure representing the attributes of a load or store instruction.
+struct LoadStoreInstAttributes {
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antoniofrighetto wrote:

Right, I don't think that should be too much of a problem. We simply add it alongside its first user (which happens to be the load instruction).

https://github.com/llvm/llvm-project/pull/206470