I've tested this patch against the VK-CTS push constant 16-bit tests,
and enabled storagePushConstant16 at VK_KHR_16bit_storage. All test pass
without any extra modification.
dEQP-VK.spirv_assembly.instruction.compute.16bit_storage.push_constant.*
dEQP-VK.spirv_assembly.instruction.graphics.16bit_
This rewires the logic for assigning uniform locations to work in terms
of "complex alignments". The basic idea is that, as we walk the list of
instructions, we keep track of the alignment and continuity requirements
of each slot and assert that the alignments all match up. We then use
those alig
