[llvm] [IR] Correct Value::use_iterator::value_type. (PR #120609)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-ir

Author: Craig Topper (topperc)

<details>
<summary>Changes</summary>

operator* for this iterator returns Use& so I think the value_type should be Use not Use*.

Noticed while comparing with SDNode::use_iterator.

---
Full diff: https://github.com/llvm/llvm-project/pull/120609.diff


1 Files Affected:

- (modified) llvm/include/llvm/IR/Value.h (+1-1) 


``````````diff
diff --git a/llvm/include/llvm/IR/Value.h b/llvm/include/llvm/IR/Value.h
index d444a768a65436..011aedece94ab7 100644
--- a/llvm/include/llvm/IR/Value.h
+++ b/llvm/include/llvm/IR/Value.h
@@ -131,7 +131,7 @@ class Value {
 
   public:
     using iterator_category = std::forward_iterator_tag;
-    using value_type = UseT *;
+    using value_type = UseT;
     using difference_type = std::ptrdiff_t;
     using pointer = value_type *;
     using reference = value_type &;

``````````

</details>


https://github.com/llvm/llvm-project/pull/120609