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

[Michael Kruse via llvm-commits]

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@@ -521,6 +521,38 @@ 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;
+
+        bool ProcessLoads = false;
+        for (auto *U : Ptr->users()) {
+          auto *CurLoad = dyn_cast<LoadInst>(U);
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Meinersbur wrote:

`LAI.getInstructionsForAccess(Ptr, false)` should already contain all the LoadInsts. No need to iterate over all instructions.

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