[llvm] [IROutliner] Avoid repeated hash lookups (NFC) (PR #107726)

[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/107726.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/IPO/IROutliner.cpp (+1-2) 


``````````diff
diff --git a/llvm/lib/Transforms/IPO/IROutliner.cpp b/llvm/lib/Transforms/IPO/IROutliner.cpp
index 96c803c0186ef4..aecae7c59afa43 100644
--- a/llvm/lib/Transforms/IPO/IROutliner.cpp
+++ b/llvm/lib/Transforms/IPO/IROutliner.cpp
@@ -1333,11 +1333,10 @@ findExtractedOutputToOverallOutputMapping(Module &M, OutlinableRegion &Region,
       if (!isa<PointerType>(Group.ArgumentTypes[Jdx]))
         continue;
 
-      if (AggArgsUsed.contains(Jdx))
+      if (!AggArgsUsed.insert(Jdx).second)
         continue;
 
       TypeFound = true;
-      AggArgsUsed.insert(Jdx);
       Region.ExtractedArgToAgg.insert(std::make_pair(OriginalIndex, Jdx));
       Region.AggArgToExtracted.insert(std::make_pair(Jdx, OriginalIndex));
       AggArgIdx = Jdx;

``````````

</details>


https://github.com/llvm/llvm-project/pull/107726