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

kazutakahirata · mahesh-attarde · commit 8bfd053a7e55 · 2025-10-02T21:15:49.000-07:00
While I am at it, this patch adds [[nodiscard]].
diff --git 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

Original file line number	Diff line number	Diff line change
`@@ -180,8 +180,8 @@ template <class ElemTy> class EquivalenceClasses {`
`180`	`180`	`}`
`181`	`181`
`182`	`182`	`/// Returns true if \p V is contained an equivalence class.`
`183`		`- bool contains(const ElemTy &V) const {`
`184`		`- return TheMapping.find(V) != TheMapping.end();`
	`183`	`+ [[nodiscard]] bool contains(const ElemTy &V) const {`
	`184`	`+ return TheMapping.contains(V);`
`185`	`185`	`}`
`186`	`186`
`187`	`187`	`/// getLeaderValue - Return the leader for the specified value that is in the`