[Bug gcov-profile/77378] [7 Regression] tree-profile and libgcov assume long long atomic operations are supported

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77378

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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   Target Milestone|---                         |7.0

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
I suppose we need a configure check or target hook/macro for the native atomics
support presence.  I'm sure such already exists and we do not want to get
libatomic calls for the instrumentation.