commit 34e4034a9fceed99b0d63ad1f4357ea7920630bb
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Sun Jul 31 20:23:20 2016 +0100

    Ensure std::atomic test is compiled with optimization
    
    	* testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc:
    	Ensure test is compiled with optimization.

diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc b/libstdc++-v3/testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc
index f4a88f6..b8f263f 100644
--- a/libstdc++-v3/testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc
+++ b/libstdc++-v3/testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc
@@ -1,5 +1,5 @@
 // { dg-do compile { target i?86-*-* x86_64-*-* } }
-// { dg-options "-std=gnu++11 -g0 -fno-exceptions -fno-asynchronous-unwind-tables" }
+// { dg-options "-std=gnu++11 -O2 -g0 -fno-exceptions -fno-asynchronous-unwind-tables" }
 // { dg-additional-options "-march=i486" { target ia32 } }
 // { dg-final { scan-assembler-times "xacquire\|\.byte\[^\n\r]*0xf2" 14 } }
 // { dg-final { scan-assembler-times "xrelease\|\.byte\[^\n\r]*0xf3" 14 } }