From 1723592cef9164c8e72d57417f5a33162b867f63 Mon Sep 17 00:00:00 2001
From: David Callahan <dcallahan@fb.com>
Date: Fri, 22 Jan 2016 13:34:32 -0800
Subject: [PATCH] avoid aggressive optimization

Summary: GCC will now dead-code eliminate the folly-based version of this test without a mechanisms to force the result to be live.

Reviewed By: ttsugriy

Differential Revision: D2854633

fb-gh-sync-id: 0e3841ed22c040fda7653bcfb5a3f19ca3d1f835
---
 folly/test/AsciiCaseInsensitiveBenchmark.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/folly/test/AsciiCaseInsensitiveBenchmark.cpp b/folly/test/AsciiCaseInsensitiveBenchmark.cpp
index 00865763..f075f941 100644
--- a/folly/test/AsciiCaseInsensitiveBenchmark.cpp
+++ b/folly/test/AsciiCaseInsensitiveBenchmark.cpp
@@ -100,6 +100,7 @@ inline void test_operator_on_search(int iters) {
       cmp
     ) - lorem_ipsum.begin();
   }
+  doNotOptimizeAway(dummy);
 }
 
 BENCHMARK(LegacyCaseInsensitiveCheck, iters) {
-- 
2.34.1