[clang] [libclang] Avoid repeated hash lookups (NFC) (PR #111087)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/111087.diff


1 Files Affected:

- (modified) clang/tools/libclang/CXIndexDataConsumer.cpp (+2-8) 


``````````diff
diff --git a/clang/tools/libclang/CXIndexDataConsumer.cpp b/clang/tools/libclang/CXIndexDataConsumer.cpp
index 8d364ed8876a12..ced94e13baf12e 100644
--- a/clang/tools/libclang/CXIndexDataConsumer.cpp
+++ b/clang/tools/libclang/CXIndexDataConsumer.cpp
@@ -952,18 +952,12 @@ void CXIndexDataConsumer::addContainerInMap(const DeclContext *DC,
   if (!DC)
     return;
 
-  ContainerMapTy::iterator I = ContainerMap.find(DC);
-  if (I == ContainerMap.end()) {
-    if (container)
-      ContainerMap[DC] = container;
-    return;
-  }
   // Allow changing the container of a previously seen DeclContext so we
   // can handle invalid user code, like a function re-definition.
   if (container)
-    I->second = container;
+    ContainerMap[DC] = container;
   else
-    ContainerMap.erase(I);
+    ContainerMap.erase(DC);
 }
 
 CXIdxClientEntity CXIndexDataConsumer::getClientEntity(const Decl *D) const {

``````````

</details>


https://github.com/llvm/llvm-project/pull/111087