Remove unused variables throughout the code base and enable the
`-Wunused-variable` warning flag globally to prevent new unused
variable issues being introduced in the future.
This is mostly a non-functional change, with one exception:
- In `test_conformance/api/test_kernel_arg_info.cpp`, an error check
of the clGetDeviceInfo return value was added.
Signed-off-by: Sven van Haastregt <sven.vanhaastregt@arm.com>
* Skip sub_group_dispatch.
If sub groups aren't supported, skip the test.
* Do not test for cl_khr_subgroups as the extension requires IFP.
3.0 allows sub groups *without* IFP so the check was invalid.
code for test_api sub_group_dispatch. Although subgroups
is a core feature there is no separate 2.1 language spec
so we use the 2.0 with the pragma.
Signed-off-by: John Kesapides <john.kesapides@arm.com>
