[Bug c++/69078] [C++14] function local static not initialized when only used in a generic/variadic lambda

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69078

Christophe Lyon <clyon at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |clyon at gcc dot gnu.org

--- Comment #5 from Christophe Lyon <clyon at gcc dot gnu.org> ---
Hi,
I couldn't find the email where this patch was posted, so I reply here.

I've noticed that the new testcase:
> 	PR c++/69078
> 	* g++.dg/cpp1y/lambda-generic-69078-1.C: New.

fails on arm-none-eabi
--with-mode default
--with-cpu default
--with-fpu default

(that is, when the default arm target is an old, less-capable cpu).

The test fails to link for lack of __sync_synchronize.

In other occasions, a fix for this kind of problem was to add
// { dg-require-thread-fence "" }
but this doesn't work here, as this dg proc is only defined in the libstdc++
testsuite.

How to skip it here?