[Migrated] How to get spir-v with OpCapability Kernel?

Issue automatically imported from old repo: https://github.com/EmbarkStudios/rust-gpu/issues/1094

Originally creatd by jczaja on 2023-09-22T07:57:23Z

Hi,

I have a dummy compute kernel:

#[spirv(compute(threads(768)))]
pub fn main_cs(
    #[spirv(global_invocation_id)] id: UVec3,
    #[spirv(storage_buffer, descriptor_set = 0, binding = 0)] prime_indices: &mut [u32],
) {
    let index = id.x as usize;
    prime_indices[index] = collatz(prime_indices[index]).1u32;
}

I can run it using Vulkano abd it works, but I wanted to run this spir-v kernel using Intel Level Zero and this did not work. Problem is that Intel Level zero is OpenCL like API and it require that SPIR-V is :

OpCapability Kernel
OpMemoryModel Physical64 OpenCL
..

while my dummy compute kernel as SPIR-V contains:

OpCapability Shader 
OpMemoryModel Logical Simple 
...

How can I compiler my rust compute shader so it is of SPIR-V form OpCapability Kernel ?

La issue nomina un kernel di calcolo Rust fittizio, Vulkano, Intel Level Zero e le capacità SPIR-V e il modello di memoria richiesti, ma non indica alcun file o test del repository. Inizia tracciando il modo in cui rust-gpu genera SPIR-V per gli shader di calcolo e confronta quell’output con le regole di validazione di Level Zero. Il lavoro è completo quando viene identificato un percorso supportato verso la forma richiesta oppure viene documentata chiaramente la limitazione.