From 3e5ee194c00dc0303593340daaba3bacbf1caa68 Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Tue, 30 Mar 2021 19:27:10 -0700
Subject: [PATCH] [SimpleLoopUnswitch] Fix -Wunused-variable in
 -DLLVM_ENABLE_ASSERTIONS=off builds after
 431a40e1e28f181e87dd247b91a5e6872dd64ab4

---
 llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
index d1121ec..6d425a6 100644
--- a/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
+++ b/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
@@ -1996,6 +1996,7 @@ static void unswitchNontrivialInvariants(
   int ClonedSucc = 0;
   if (!FullUnswitch) {
     Value *Cond = BI->getCondition();
+    (void)Cond;
     assert((match(Cond, m_LogicalAnd()) ^ match(Cond, m_LogicalOr())) &&
            "Only `or`, `and`, an `select` instructions can combine "
            "invariants being unswitched.");
-- 
2.7.4