Struct PtxBackend 

pub struct PtxBackend { /* private fields */ }

PTX backend — Backend impl wrapping a MultiEmitterBackend so the v0.1.0 scaffold drives through the same routing the future rustc_codegen_nvvm + aprender-gpu quorum will use.

Implementations

impl PtxBackend

pub fn new() -> Self

pub fn new_with_matmul_specialist() -> Self

PMAT-280 — End-to-end validation constructor for Section 29’s multi-emitter routing.

Builds a PtxBackend whose MultiEmitterBackend carries the ScaffoldPtxEmitter in the general slot AND a [MatmulSpecialistEmitter] in the specialist slot under QuorumPolicy::PreferSpecialist. The specialist matches only modules whose name starts with matmul_ — the shape filter real specialists like aprender-gpu would use to claim GEMM-shaped kernels.

This isn’t registered in default_session() — production at v0.1.0+ still uses PtxBackend::new. The constructor exists so tests + future integrations can exercise the MultiEmitterBackend::new_with_specialist path against real production code (not just mock tests). It’s the smallest concrete proof that the §29 routing layer is end-to-end usable, ahead of the heavy rustc_codegen_nvvm / aprender-gpu integrations that will eventually replace these placeholders.

Trait Implementations

impl Backend for PtxBackend

fn name(&self) -> &'static str

Human-readable backend name, e.g. “rust”, “ptx”, “wgsl”.

fn targets(&self) -> &[Target]

Targets this backend can emit. Each Target variant is owned by exactly one Backend impl (target_ownership invariant).

fn lower( &self, module: &Module, config: &BackendConfig, ) -> Result<Artifact, BackendError>

Lower a meta-HIR module under the given config to an Artifact.

impl Default for PtxBackend

fn default() -> Self

Returns the “default value” for a type.