[llvm] [Coroutines] Avoid repeated hash lookups (NFC) (PR #126432)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-coroutines

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/126432.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/Coroutines/CoroFrame.cpp (+4-3) 


``````````diff
diff --git a/llvm/lib/Transforms/Coroutines/CoroFrame.cpp b/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
index c56d1bf33efd877..4104e4e533e9d86 100644
--- a/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
+++ b/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
@@ -752,13 +752,14 @@ static void buildFrameDebugInfo(Function &F, coro::Shape &Shape,
                                   dwarf::DW_ATE_unsigned_char)});
 
   for (auto *V : FrameData.getAllDefs()) {
-    if (!DIVarCache.contains(V))
+    auto It = DIVarCache.find(V);
+    if (It == DIVarCache.end())
       continue;
 
     auto Index = FrameData.getFieldIndex(V);
 
-    NameCache.insert({Index, DIVarCache[V]->getName()});
-    TyCache.insert({Index, DIVarCache[V]->getType()});
+    NameCache.insert({Index, It->second->getName()});
+    TyCache.insert({Index, It->second->getType()});
   }
 
   // Cache from index to (Align, Offset Pair)

``````````

</details>


https://github.com/llvm/llvm-project/pull/126432