And add tests for the GCC intrinsics and for std::atomic.
Task-number: QTBUG-43794
Change-Id: Ic5d393bfd36e48a193fcffff13b9b2dbaee80469
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
This simplifies the code a lot and avoids silly mistakes where a
specific integer type is missing (such as char16_t).
Change-Id: Id91dfd1919e783e0a9af7bfa093ca560a01b22d1
Reviewed-by: Lars Knoll <lars.knoll@digia.com>