My main problem with SPIR-V specialization today is that it doesn't affect the shader interface. For WebGPU, we don't want to validate presence of resources tha

My main problem with SPIR-V specialization today is that it doesn't affect the shader interface. For WebGPU, we don't want to validate presence of resources that the user doesn't need, we don't want to allocate registers for them in our pipeline layouts, etc. I think having this ability is critical.