[llvm] c4a5519 - [ADT] Use DenseMap::contains in EquivalenceClasses.h (NFC) (#161120)

[via llvm-commits]

Author: Kazu Hirata
Date: 2025-09-29T07:54:14-07:00
New Revision: c4a55190a50a986da985d586631979653d679275

URL: https://github.com/llvm/llvm-project/commit/c4a55190a50a986da985d586631979653d679275
DIFF: https://github.com/llvm/llvm-project/commit/c4a55190a50a986da985d586631979653d679275.diff

LOG: [ADT] Use DenseMap::contains in EquivalenceClasses.h (NFC) (#161120)

While I am at it, this patch adds [[nodiscard]].

Added: 
    

Modified: 
    llvm/include/llvm/ADT/EquivalenceClasses.h

Removed: 
    


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diff  --git a/llvm/include/llvm/ADT/EquivalenceClasses.h b/llvm/include/llvm/ADT/EquivalenceClasses.h
index 1a2331c1a0322..7df0d1557af87 100644
--- a/llvm/include/llvm/ADT/EquivalenceClasses.h
+++ b/llvm/include/llvm/ADT/EquivalenceClasses.h
@@ -180,8 +180,8 @@ template <class ElemTy> class EquivalenceClasses {
   }
 
   /// Returns true if \p V is contained an equivalence class.
-  bool contains(const ElemTy &V) const {
-    return TheMapping.find(V) != TheMapping.end();
+  [[nodiscard]] bool contains(const ElemTy &V) const {
+    return TheMapping.contains(V);
   }
 
   /// getLeaderValue - Return the leader for the specified value that is in the