[0051] Specifying base alignment in SPIR-V #802
Description
Which proposal does this relate to?
0051-byte-address-buffer-alignment.md
Describe the issue or outstanding question.
The proposal says:
Buffer objects can carry base alignment information in their descriptors, while individual buffer access operations can specify per-operation alignment requirements through existing SPIR-V alignment parameters, requiring no new SPIR-V instructions or capabilities.
Which "buffer descriptor" is this referring to?
In SPIR-V, buffers are specified as decorated pointers, and AFAIK Vulkan SPIR-V does not have a way to specify a base alignment for these pointers.
There is the Alignment decoration that can be attached to pointers, but it is exclusive to the Kernel capability (aka OpenCL).