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

[Kazu Hirata via llvm-commits]

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

None

>From 005ddadef39856cacdb285dc6bd9e162b37c6229 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Sun, 9 Feb 2025 09:14:58 -0800
Subject: [PATCH] [Coroutines] Avoid repeated hash lookups (NFC)

---
 llvm/lib/Transforms/Coroutines/CoroFrame.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

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)