[llvm] [IR] Fix nested constant to instruction conversion (PR #69682)

[Wenju He via llvm-commits]

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@@ -85,9 +90,11 @@ bool convertUsersOfConstantsToInstructions(ArrayRef<Constant *> Consts) {
       if (auto *C = dyn_cast<Constant>(U.get())) {
         if (ExpandableUsers.contains(C)) {
           Changed = true;
-          Instruction *NI = expandUser(BI, C);
-          InstructionWorklist.insert(NI);
-          U.set(NI);
+          auto NewInsts = expandUser(BI, C);
+          for (auto *NI : NewInsts)
+            NI->setDebugLoc(BI->getDebugLoc());
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wenju-he wrote:

Thank you for the review. I didn't notice this problem. I've updated to use debug loc from the original inst

https://github.com/llvm/llvm-project/pull/69682