[Analysis] Avoid repeated hash lookups (NFC)

[kazutakahirata]

No description provided.

[llvmbot]

@llvm/pr-subscribers-llvm-analysis

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/126402.diff

1 Files Affected:

• (modified) llvm/lib/Analysis/DependenceGraphBuilder.cpp (+2-2)

diff --git a/llvm/lib/Analysis/DependenceGraphBuilder.cpp b/llvm/lib/Analysis/DependenceGraphBuilder.cpp
index 7ee2adf49ebb410..82e9dcfbab23f3f 100644
--- a/llvm/lib/Analysis/DependenceGraphBuilder.cpp
+++ b/llvm/lib/Analysis/DependenceGraphBuilder.cpp
@@ -241,8 +241,8 @@ template <class G> void AbstractDependenceGraphBuilder<G>::createDefUseEdges() {
         if (!UI)
           continue;
         NodeType *DstNode = nullptr;
-        if (IMap.find(UI) != IMap.end())
-          DstNode = IMap.find(UI)->second;
+        if (auto It = IMap.find(UI); It != IMap.end())
+          DstNode = It->second;
 
         // In the case of loops, the scope of the subgraph is all the
         // basic blocks (and instructions within them) belonging to the loop. We

[kazutakahirata]

@nikic Friendly ping. Thanks!