[llvm] [DebugInfo][LoopLoadElim] Fix missing debug location updates (PR #91839)

[Orlando Cazalet-Hyams via llvm-commits]

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@@ -0,0 +1,85 @@
+; RUN: opt -passes=loop-load-elim -S < %s | FileCheck %s
+
+; LoopLoadElimination's propagateStoredValueToLoadUsers() replaces the
+; `load` (`%a`) with an hoisted initial `load` and a `phi` that forwards
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OCHyams wrote:

```suggestion
; `load` (`%a`) with a hoisted initial `load` and a `phi` that forwards
```

https://github.com/llvm/llvm-project/pull/91839