From 400a9d35015b1b8e56b5916e31c8be87851b799b Mon Sep 17 00:00:00 2001
From: Chuanqi Xu <yedeng.yd@linux.alibaba.com>
Date: Tue, 25 May 2021 20:33:46 +0800
Subject: [PATCH] [NFC] [Coroutines] Remove unused variable: UnreachableCache

---
 llvm/lib/Transforms/Coroutines/CoroSplit.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/llvm/lib/Transforms/Coroutines/CoroSplit.cpp b/llvm/lib/Transforms/Coroutines/CoroSplit.cpp
index a1c0f4f8c0add..fb3f3cf3fc256 100644
--- a/llvm/lib/Transforms/Coroutines/CoroSplit.cpp
+++ b/llvm/lib/Transforms/Coroutines/CoroSplit.cpp
@@ -661,7 +661,6 @@ void CoroCloner::salvageDebugInfo() {
   // Remove all salvaged dbg.declare intrinsics that became
   // either unreachable or stale due to the CoroSplit transformation.
   DominatorTree DomTree(*NewF);
-  SmallDenseMap<BasicBlock *, bool, 8> UnreachableCache;
   auto IsUnreachableBlock = [&](BasicBlock *BB) {
     return !isPotentiallyReachable(&NewF->getEntryBlock(), BB, nullptr,
                                    &DomTree);