[llvm] [BOLT] Avoid repeated hash lookups (NFC) (PR #111782)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-bolt

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/111782.diff


1 Files Affected:

- (modified) bolt/lib/Profile/YAMLProfileReader.cpp (+1-5) 


``````````diff
diff --git a/bolt/lib/Profile/YAMLProfileReader.cpp b/bolt/lib/Profile/YAMLProfileReader.cpp
index 67ed32017667d6..fe0fcfdcd42f9b 100644
--- a/bolt/lib/Profile/YAMLProfileReader.cpp
+++ b/bolt/lib/Profile/YAMLProfileReader.cpp
@@ -643,11 +643,7 @@ size_t YAMLProfileReader::matchWithNameSimilarity(BinaryContext &BC) {
     // equal number of blocks.
     if (NamespaceToProfiledBFSizesIt->second.count(BF->size()) == 0)
       continue;
-    auto NamespaceToBFsIt = NamespaceToBFs.find(Namespace);
-    if (NamespaceToBFsIt == NamespaceToBFs.end())
-      NamespaceToBFs[Namespace] = {BF};
-    else
-      NamespaceToBFsIt->second.push_back(BF);
+    NamespaceToBFs[Namespace].push_back(BF);
   }
 
   // Iterates through all profiled functions and binary functions belonging to

``````````

</details>


https://github.com/llvm/llvm-project/pull/111782