testsuite: tweak constexpr-lamda1.C [PR118053]

I forgot to add the -O necessary to reproduce the bug before pushing the
fix.

	PR c++/118053

gcc/testsuite/ChangeLog:

	* g++.dg/cpp1y/constexpr-lambda1.C: Add -O.

diff --git a/gcc/testsuite/g++.dg/cpp1y/constexpr-lambda1.C b/gcc/testsuite/g++.dg/cpp1y/constexpr-lambda1.C
index 68152e26b89934befdf3cb34dd52f6a7e59829ad..dca3920ddc0ce91f72ecaa7bc12e1527be086b54 100644 (file)
--- a/gcc/testsuite/g++.dg/cpp1y/constexpr-lambda1.C
+++ b/gcc/testsuite/g++.dg/cpp1y/constexpr-lambda1.C
@@ -1,5 +1,6 @@
 // PR c++/118053
 // { dg-do compile { target c++14 } }
+// { dg-additional-options -O }
 
 template <typename _Tp> struct vector {
   _Tp * _M_finish;