[llvm] [ADT] Fix a comment typo in SmallPtrSet (NFC) (PR #152565)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-adt

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

In the large mode, SmallPtrSet uses quadratic probing with ProbeAmt++
just like DenseMap.


---
Full diff: https://github.com/llvm/llvm-project/pull/152565.diff


1 Files Affected:

- (modified) llvm/include/llvm/ADT/SmallPtrSet.h (+1-1) 


``````````diff
diff --git a/llvm/include/llvm/ADT/SmallPtrSet.h b/llvm/include/llvm/ADT/SmallPtrSet.h
index 892040ef4cab1..d49ef1d4fbc57 100644
--- a/llvm/include/llvm/ADT/SmallPtrSet.h
+++ b/llvm/include/llvm/ADT/SmallPtrSet.h
@@ -46,7 +46,7 @@ namespace llvm {
 /// sets are often small.  In this case, no memory allocation is used, and only
 /// light-weight and cache-efficient scanning is used.
 ///
-/// Large sets use a classic exponentially-probed hash table.  Empty buckets are
+/// Large sets use a classic quadratically-probed hash table.  Empty buckets are
 /// represented with an illegal pointer value (-1) to allow null pointers to be
 /// inserted.  Tombstones are represented with another illegal pointer value
 /// (-2), to allow deletion.  The hash table is resized when the table is 3/4 or

``````````

</details>


https://github.com/llvm/llvm-project/pull/152565