[llvm] [Hexagon] Avoid repeated hash lookups (NFC) (PR #127578)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-hexagon

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/127578.diff


1 Files Affected:

- (modified) llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp (+2-2) 


``````````diff
diff --git a/llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp b/llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp
index 4e4467c76aff5..0760d712f9afd 100644
--- a/llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp
@@ -1174,8 +1174,8 @@ auto AlignVectors::realignLoadGroup(IRBuilderBase &Builder,
   for (const ByteSpan::Block &B : VSpan) {
     ByteSpan ASection = ASpan.section(B.Pos, B.Seg.Size);
     for (const ByteSpan::Block &S : ASection) {
-      EarliestUser[S.Seg.Val] = std::min(
-          EarliestUser[S.Seg.Val], earliestUser(B.Seg.Val->uses()), isEarlier);
+      auto &EU = EarliestUser[S.Seg.Val];
+      EU = std::min(EU, earliestUser(B.Seg.Val->uses()), isEarlier);
     }
   }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/127578