[llvm] [Transforms] Avoid repeated hash lookups (NFC) (PR #130238)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/130238

None

>From 33c33495eb9ccf8fa5c85c32292ca0dbe5f8ef6a Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Thu, 6 Mar 2025 09:04:52 -0800
Subject: [PATCH] [Transforms] 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 62fa3af502e29..2f5f1089067bf 100644
--- a/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
+++ b/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
@@ -785,7 +785,8 @@ static void buildFrameDebugInfo(Function &F, coro::Shape &Shape,
   // fields confilicts with each other.
   unsigned UnknownTypeNum = 0;
   for (unsigned Index = 0; Index < FrameTy->getNumElements(); Index++) {
-    if (!OffsetCache.contains(Index))
+    auto OCIt = OffsetCache.find(Index);
+    if (OCIt == OffsetCache.end())
       continue;
 
     std::string Name;
@@ -797,8 +798,8 @@ static void buildFrameDebugInfo(Function &F, coro::Shape &Shape,
     Type *Ty = FrameTy->getElementType(Index);
     assert(Ty->isSized() && "We can't handle type which is not sized.\n");
     SizeInBits = Layout.getTypeSizeInBits(Ty).getFixedValue();
-    AlignInBits = OffsetCache[Index].first * 8;
-    OffsetInBits = OffsetCache[Index].second * 8;
+    AlignInBits = OCIt->second.first * 8;
+    OffsetInBits = OCIt->second.second * 8;
 
     if (auto It = NameCache.find(Index); It != NameCache.end()) {
       Name = It->second.str();