project_6/upstream_ref/ds_vllm/csrc/torch_utils.h

#pragma once

// Shared TORCH_UTILS_CHECK across both libtorch stable and unstable source
// files. Keep this header free of CUTLASS/CUTE so attention/quant headers can
// use it.
//
// If TORCH_TARGET_VERSION is defined, we are building _C_stable_libtorch.so so
// use STD_TORCH_CHECK via header-only.
// Otherwise, use TORCH_CHECK via torch/all.h.

#ifdef TORCH_TARGET_VERSION
  #include <torch/headeronly/util/Exception.h>
  #define TORCH_UTILS_CHECK STD_TORCH_CHECK
#else
  #include <torch/all.h>
  #define TORCH_UTILS_CHECK TORCH_CHECK
#endif
ref(upstream): FULL TREE — Deep-Spark xllm (1470) + ds_vllm csrc/models (703) Replaces cherry-picked upstream_ref with complete source trees. xllm/ — Iluvatar official C++ inference engine (15MB, 1470 files) Complete: kernels → layers → models → runtime → scheduler → api Excluded: .git, binary images, third_party submodule checkouts ds_vllm/ — Iluvatar official vllm fork (8MB, 703 files) Included: csrc/ (ALL CUDA kernels), fused_moe/, qwen3_5 model, _custom_ops Excluded: tests, benchmarks, docs, examples (not needed for reference) Critical call chains now fully traceable: MoE: moe_topk_softmax_kernels.cuh → ixformer.h → fused_moe.cpp → layer GDN: qwen3_gated_delta_net_base.cpp → qwen3_5_gated_delta_net.cpp Attention: ixformer.h → xllm_paged_attention → attention.cpp 2026-08-10 02:53:54 +00:00			`#pragma once`

			`// Shared TORCH_UTILS_CHECK across both libtorch stable and unstable source`
			`// files. Keep this header free of CUTLASS/CUTE so attention/quant headers can`
			`// use it.`
			`//`
			`// If TORCH_TARGET_VERSION is defined, we are building _C_stable_libtorch.so so`
			`// use STD_TORCH_CHECK via header-only.`
			`// Otherwise, use TORCH_CHECK via torch/all.h.`

			`#ifdef TORCH_TARGET_VERSION`
			`#include <torch/headeronly/util/Exception.h>`
			`#define TORCH_UTILS_CHECK STD_TORCH_CHECK`
			`#else`
			`#include <torch/all.h>`
			`#define TORCH_UTILS_CHECK TORCH_CHECK`
			`#endif`