From 1f6a329f79b3568d379142f921f59c4143ddaa14 Mon Sep 17 00:00:00 2001
From: Duncan Sands <baldrick@free.fr>
Date: Fri, 12 Aug 2011 14:54:45 +0000
Subject: Silence a bunch (but not all) "variable written but not read"
 warnings when building with assertions disabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137460 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/RegisterScavenging.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'lib/CodeGen/RegisterScavenging.cpp')

diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp
index 9e9a145b0a..ca02aa1b81 100644
--- a/lib/CodeGen/RegisterScavenging.cpp
+++ b/lib/CodeGen/RegisterScavenging.cpp
@@ -206,6 +206,7 @@ void RegScavenger::forward() {
             break;
           }
         assert(SubUsed && "Using an undefined register!");
+        (void)SubUsed;
       }
       assert((!EarlyClobberRegs.test(Reg) || MI->isRegTiedToDefOperand(i)) &&
              "Using an early clobbered register!");
-- 
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