New tests for VK_KHR_synchronization2
This change adds none_stage tests that exercise PIPELINE_STAGE_NONE
as well as MEMORY_ACCESS_READ|WRITE_BIT and new generic layouts.
Event tests were also extends to test GPU-only scenarios using new
VK_EVENT_CREATE_DEVICE_ONLY_BIT_KHR.
Components: Vulkan
VK-GL-CTS issue: 2365
New tests:
dEQP-VK.synchronization2.basic.event.*_device_only
dEQP-VK.synchronization2.none_stage.*
Affects:
dEQP-VK.synchronization*
Change-Id: I86e056054a6541526140fd15fb53bef9359b6b28