Module host 

Single-op CPU reference evaluation via rlx-cpu’s thunk executor (the same kernels the CPU backend uses, so results are bit-for-bit the reference).

Two callers:

• On a host with no Level Zero device (the macOS dev box / CI), backend.rs walks the whole legalized graph through this evaluator — every op is served by the CPU reference, so the backend is fully correct without Intel HW.
• On Intel hardware, ops with no native SPIR-V kernel yet route here (read from the USM arena, eval, write back) — exactly rlx-vulkan’s host-fallback.

Enums

HostBuf

One host-eval input: f32 activations, or raw bytes for a packed quant weight (U8/I8 operands such as the GGUF weight of Op::DequantMatMul).

Functions

eval

Run a single op on the CPU reference and return its f32 output. inputs[i] is (declared_shape, buffer).