From 51da12680f9dd06caa550522f05a4820131887be Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Tue, 2 Feb 2021 10:23:14 -0800
Subject: [PATCH] [ConstraintElimination] Fix -Wunused-function in
 -DLLVM_ENABLE_ASSERTIONS=off build

---
 llvm/lib/Transforms/Scalar/ConstraintElimination.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
index f190ddc..e5b171f 100644
--- a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
@@ -216,6 +216,7 @@ struct StackEntry {
 };
 } // namespace
 
+#ifndef NDEBUG
 static void dumpWithNames(ConstraintTy &C,
                           DenseMap<Value *, unsigned> &Value2Index) {
   SmallVector<std::string> Names(Value2Index.size(), "");
@@ -226,6 +227,7 @@ static void dumpWithNames(ConstraintTy &C,
   CS.addVariableRowFill(C.Coefficients);
   CS.dump(Names);
 }
+#endif
 
 static bool eliminateConstraints(Function &F, DominatorTree &DT) {
   bool Changed = false;
-- 
2.7.4