From e346ea990528d93758ed216c53b2ef86ea82ff72 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Tue, 20 Oct 2020 11:02:23 +0100
Subject: [PATCH] [InstCombine] SimplifyDemandedUseBits - pass APInt by const
 reference. NFCI.

---
 llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
index 1b8519b0..805eab0 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
@@ -339,7 +339,7 @@ Value *InstCombinerImpl::SimplifyDemandedUseBits(Value *V, APInt DemandedMask,
     // we can. This helps not break apart (or helps put back together)
     // canonical patterns like min and max.
     auto CanonicalizeSelectConstant = [](Instruction *I, unsigned OpNo,
-                                         APInt DemandedMask) {
+                                         const APInt &DemandedMask) {
       const APInt *SelC;
       if (!match(I->getOperand(OpNo), m_APInt(SelC)))
         return false;
-- 
2.7.4