From a4070a5e77283912eb29e79efd4fb872fdb9ec90 Mon Sep 17 00:00:00 2001
From: Adrian Kuegel <akuegel@google.com>
Date: Wed, 29 Jun 2022 09:10:20 +0200
Subject: [PATCH] [mlir][Presburger] Fix warning Wreturn-std-move (NFC)

---
 mlir/lib/Analysis/Presburger/PresburgerRelation.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mlir/lib/Analysis/Presburger/PresburgerRelation.cpp b/mlir/lib/Analysis/Presburger/PresburgerRelation.cpp
index a2e524ea9fd7..15e186996333 100644
--- a/mlir/lib/Analysis/Presburger/PresburgerRelation.cpp
+++ b/mlir/lib/Analysis/Presburger/PresburgerRelation.cpp
@@ -13,6 +13,8 @@
 #include "llvm/ADT/ScopeExit.h"
 #include "llvm/ADT/SmallBitVector.h"
 
+#include <utility>
+
 using namespace mlir;
 using namespace presburger;
 
@@ -144,7 +146,7 @@ PresburgerRelation PresburgerRelation::computeReprWithOnlyDivLocals() const {
   PresburgerRelation result(getSpace());
   for (const IntegerRelation &disjunct : disjuncts)
     result.unionInPlace(disjunct.computeReprWithOnlyDivLocals());
-  return result;
+  return std::move(result);
 }
 
 /// Return the set difference b \ s.