From d12317ef904d705cbc5d42784aea2abc27836467 Mon Sep 17 00:00:00 2001
From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Thu, 23 Feb 2017 22:47:56 +0000
Subject: [PATCH] [CodeGen] Silence unused variable warning in Release builds.

llvm-svn: 296034
---
 clang/lib/CodeGen/CGVTables.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/clang/lib/CodeGen/CGVTables.cpp b/clang/lib/CodeGen/CGVTables.cpp
index 947997935d11..9d8abfaf585d 100644
--- a/clang/lib/CodeGen/CGVTables.cpp
+++ b/clang/lib/CodeGen/CGVTables.cpp
@@ -284,7 +284,9 @@ void CodeGenFunction::EmitCallAndReturnForThunk(llvm::Constant *CalleePtr,
   if (isa<CXXDestructorDecl>(MD))
     CGM.getCXXABI().adjustCallArgsForDestructorThunk(*this, CurGD, CallArgs);
 
+#ifndef NDEBUG
   unsigned PrefixArgs = CallArgs.size() - 1;
+#endif
   // Add the rest of the arguments.
   for (const ParmVarDecl *PD : MD->parameters())
     EmitDelegateCallArg(CallArgs, PD, SourceLocation());