xref: /aosp_15_r20/external/pytorch/torch/csrc/lazy/generated/README.md (revision da0073e96a02ea20f0ac840b70461e3646d07c45) 
1This folder contains generated sources for the lazy torchscript backend.
2
3The main input file that drives which operators get codegen support for torchscript backend is
4[../../../../aten/src/ATen/native/ts_native_functions.yaml](../../../../aten/src/ATen/native/ts_native_functions.yaml)
5
6The code generator lives at `torchgen/gen_lazy_tensor.py`.
7
8It is called automatically by the torch autograd codegen (`tools/setup_helpers/generate_code.py`)
9as a part of the build process in OSS builds (CMake/Bazel) and Buck.
10
11External backends (e.g. torch/xla) call `gen_lazy_tensor.py` directly,
12and feed it command line args indicating where the output files should go.
13
14For more information on codegen, see these resources:
15* Info about lazy tensor codegen: [gen_lazy_tensor.py docs](../../../../torchgen/gen_lazy_tensor.py)
16* Lazy TorchScript backend native functions: [ts_native_functions.yaml](../../../../aten/src/ATen/native/ts_native_functions.yaml)
17* Source of truth for native func definitions [ATen native_functions.yaml](../../../../aten/src/ATen/native/native_functions.yaml)
18* Info about native functions [ATen nativefunc README.md](../../../../aten/src/ATen/native/README.md)
19