[clang] [AST] Avoid repeated hash lookups (NFC) (PR #110947)

[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/110947.diff


1 Files Affected:

- (modified) clang/lib/AST/ASTContext.cpp (-2) 


``````````diff
diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index 735def67f7840f..a81429ad6a2380 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -14439,8 +14439,6 @@ bool ASTContext::useAbbreviatedThunkName(GlobalDecl VirtualMethodDecl,
         Mangler->mangleThunk(Method, Thunk, /* elideOverrideInfo */ false,
                              mangledNameStream);
 
-      if (Thunks.find(ElidedName) == Thunks.end())
-        Thunks[ElidedName] = {};
       Thunks[ElidedName].push_back(std::string(MangledName));
     }
   }

``````````

</details>


https://github.com/llvm/llvm-project/pull/110947