[SYCL] Force sycl::vec as device-copyable #9923
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For a type to be implicitly device-copyable in SYCL it must either be trivially-copyable or explicitly specialize
is_device_copyable
. Currentlysycl::vec
isn't the former due to a work-around in the copy ctor. However, this work-around should not have an effect on whether it can actually be copied to device. As such, this commit adds an explcit specialization ofis_device_copyable
forvec
to stay in place until the copy ctor has been fixed.