[llvm] [Scalar] Avoid repeated hash lookups (NFC) (PR #130547)

[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/130547.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/Scalar/CallSiteSplitting.cpp (+4-3) 


``````````diff
diff --git a/llvm/lib/Transforms/Scalar/CallSiteSplitting.cpp b/llvm/lib/Transforms/Scalar/CallSiteSplitting.cpp
index e644636d42f63..2e955e061111f 100644
--- a/llvm/lib/Transforms/Scalar/CallSiteSplitting.cpp
+++ b/llvm/lib/Transforms/Scalar/CallSiteSplitting.cpp
@@ -397,9 +397,10 @@ static void splitCallSite(CallBase &CB,
         continue;
       PHINode *NewPN = PHINode::Create(CurrentI->getType(), Preds.size());
       NewPN->setDebugLoc(CurrentI->getDebugLoc());
-      for (auto &Mapping : ValueToValueMaps)
-        NewPN->addIncoming(Mapping[CurrentI],
-                           cast<Instruction>(Mapping[CurrentI])->getParent());
+      for (auto &Mapping : ValueToValueMaps) {
+        Value *V = Mapping[CurrentI];
+        NewPN->addIncoming(V, cast<Instruction>(V)->getParent());
+      }
       NewPN->insertBefore(*TailBB, TailBB->begin());
       CurrentI->replaceAllUsesWith(NewPN);
     }

``````````

</details>


https://github.com/llvm/llvm-project/pull/130547