[llvm] [LoopDist] Add some runtime checks for cross partition loads (PR #145623)

[Florian Hahn via llvm-commits]

================
@@ -521,6 +521,21 @@ class InstPartitionContainer {
           Partition = -1;
       }
       assert(Partition != -2 && "Pointer not belonging to any partition");
+      // All the store context uses of our address were processed,
+      // Now make sure we don't have cross partition loads.
+      if (RtPtrCheck->Pointers[I].IsWritePtr) {
+        if (Ptr->hasOneUse() || Partition == -1)
+          continue;
+
+        for (User *U : Ptr->users())
----------------
fhahn wrote:

Hmm, do we ensure we also handle cases where `Ptr` is used by loads with another pointer-op in between?

https://github.com/llvm/llvm-project/pull/145623