Voicevox_SugaYoshihide
/
voice_bridge
/torch
/include
/ATen
/CompositeImplicitAutogradNestedTensorFunctions.h
// TODO Undo all logic introduced for Note [Avoiding Include Cycles In Static Dispatch] | |
// Code introduced to avoid cyclic dependency in static dispatch is no longer | |
// needed as static dispatch logic is moved from TensorBody.h, which caused cycles in the first place, | |
// to Operators.cpp for supporting multiple backends with multiple kernels. | |
// | |
// Note [Avoiding Include Cycles In Static Dispatch] | |
// In order to avoid #include cycles in the static dispatch build, we've carefully split out | |
// the static function definition files into {DispatchKey}Functions.h and {DispatchKey}Functions_inl.h. | |
// | |
// Without this split, the include cycle looks like TensorBody.h -> CPUFunctions.h -> TensorBody.h. | |
// - TensorBody.h #includes CPUFunctions.h in the static dispatch build, because the tensor methods | |
// all need to call into the fastpath C++ API defined in CPUFunctions.h. The methods are also all | |
// directly inlined into TensorBody.h. | |
// - CPUFunctions.h #includes TensorBody.h because it contains function declarations for the entire C++ API, | |
// which include functions that have defaultable optional<Tensor> arguments. | |
// That requires knowing the full Tensor class definition. | |
// | |
// We break the cycle by doing the following: | |
// - Split out CPUFunction.h into two files: CPUFunctions.h and CPUFunctions_inl.h | |
// - CPUFunction.h is a dummy file that just includes the Tensor class and includes CPUFunctions_inl., | |
// - CPUFunctions_inl.h includes everything else | |
// - (only in the static dispatch build) TensorBody.h makes sure to finish defining the Tensor class, | |
// and then it includes CPUFunctions_inl.h. | |
// - All other files that want the cpu fastpath functions can include CPUFunctions.h directly. | |
// - This also means that static dispatch build, CPUFunctions.h only needs to | |
// #include TensorBody.h, and it will automatically bring in CPUFunctions_inl.h. | |