[llvm] [IPO] Avoid repeated hash lookups (NFC) (PR #108796)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-transforms

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/108796.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/IPO/OpenMPOpt.cpp (+2-2) 


``````````diff
diff --git a/llvm/lib/Transforms/IPO/OpenMPOpt.cpp b/llvm/lib/Transforms/IPO/OpenMPOpt.cpp
index cd94661bbe07f7..28da864cad0ffc 100644
--- a/llvm/lib/Transforms/IPO/OpenMPOpt.cpp
+++ b/llvm/lib/Transforms/IPO/OpenMPOpt.cpp
@@ -2364,8 +2364,8 @@ struct AAICVTrackerFunction : public AAICVTracker {
       /// TODO: Figure out a way to avoid adding entry in
       /// ICVReplacementValuesMap
       Instruction *Entry = &F->getEntryBlock().front();
-      if (HasChanged == ChangeStatus::CHANGED && !ValuesMap.count(Entry))
-        ValuesMap.insert(std::make_pair(Entry, nullptr));
+      if (HasChanged == ChangeStatus::CHANGED)
+        ValuesMap.try_emplace(Entry);
     }
 
     return HasChanged;

``````````

</details>


https://github.com/llvm/llvm-project/pull/108796