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

[Kazu Hirata via cfe-commits]

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

None

>From df0ae6125e18bae6e90863300e12d094654b7b1f Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Thu, 3 Oct 2024 08:45:56 -0700
Subject: [PATCH] [libclang] Avoid repeated hash lookups (NFC)

---
 clang/tools/libclang/CXIndexDataConsumer.cpp | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

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 {