Revert D13304654: [pytorch][PR] Introduce LegacyTHDispatcher for disp…

…atching to TH functions.

Differential Revision:
D13304654

Original commit changeset: cfe3e1a28adc

fbshipit-source-id: 06669d3c88f83e1d959e2c266fd608316539d42a

aten/src/ATen/Context.cpp

@@ -111,17 +111,6 @@ TypeExtendedInterface& getType(const Tensor& t) {
   return getType(t.unsafeGetTensorImpl());
 }
 
-LegacyTHDispatcher& getLegacyTHDispatcher(TensorOptions options) {
-  return globalContext().getLegacyTHDispatcher(
-            options.backend(), typeMetaToScalarType(options.dtype()));
-}
-
-LegacyTHDispatcher& getLegacyTHDispatcher(const TensorImpl* impl) {
-  Backend backend = tensorTypeIdToBackend(impl->type_id());
-  return globalContext().getLegacyTHDispatcher(
-            backend, typeMetaToScalarType(impl->dtype()));
-}
-
 Allocator* getCPUAllocator() {
   return getTHDefaultAllocator();
 }

aten/src/ATen/Context.h

@@ -4,8 +4,6 @@
 #include "ATen/Type.h"
 #include "ATen/TypeExtendedInterface.h"
 #include "ATen/Utils.h"
-#include "ATen/LegacyTHDispatch.h"
-#include "ATen/LegacyTHDispatcher.h"
 #include "ATen/core/ATenGeneral.h"
 #include "ATen/core/Generator.h"
 #include "ATen/core/LegacyTypeDispatch.h"
@@ -41,21 +39,13 @@ class CAFFE2_API Context {
   TypeExtendedInterface & getType(Backend p, ScalarType s, bool is_variable) {
     return static_cast<TypeExtendedInterface&>(globalLegacyTypeDispatch().getType(p, s, is_variable));
   }
-  LegacyTHDispatcher& getLegacyTHDispatcher(Backend p, ScalarType s) {
-    return globalLegacyTHDispatch().getLegacyTHDispatcher(p, s);
-  }
   // The passed in Type must be delete'able
   // TODO: Just make it take a unique_ptr
   void registerType(Backend b, ScalarType s, Type* t) {
     globalLegacyTypeDispatch().registerType(b, s,
       LegacyTypeDispatch::TypeUniquePtr{t, LegacyTypeDeleter([](Type* p) { delete p; }) });
   }
 
-  void registerLegacyTHDispatcher(Backend b, ScalarType s, LegacyTHDispatcher* t) {
-    globalLegacyTHDispatch().registerDispatcher(b, s,
-      LegacyTHDispatch::LegacyTHDispatcherUniquePtr{t, LegacyTHDispatcherDeleter([](LegacyTHDispatcher* p) { delete p; }) });
-  }
-
   Generator & defaultGenerator(DeviceType device_type) {
     initCUDAIfNeeded(device_type);
     initHIPIfNeeded(device_type);
@@ -192,9 +182,6 @@ static inline TypeExtendedInterface& HIP(ScalarType s) {
   return getNonVariableType(Backend::HIP, s);
 }
 
-CAFFE2_API LegacyTHDispatcher& getLegacyTHDispatcher(TensorOptions options);
-CAFFE2_API LegacyTHDispatcher& getLegacyTHDispatcher(const Tensor&);
-
 static inline bool hasCUDA() {
   return globalContext().hasCUDA();
 }

aten/src/ATen/gen.py

@@ -119,8 +119,6 @@ def check_all_files_written(self):
 TYPE_DEFAULT_H = CodeTemplate.from_file(TEMPLATE_PATH + "/TypeDefault.h")
 TYPE_DEFAULT_CPP = CodeTemplate.from_file(TEMPLATE_PATH + "/TypeDefault.cpp")
 
-LEGACY_TH_DISPATCHER_H = CodeTemplate.from_file(TEMPLATE_PATH + "/LegacyTHDispatcher.h")
-
 REGISTER_CPU_H = CodeTemplate.from_file(TEMPLATE_PATH + "/RegisterCPU.h")
 REGISTER_CPU_CPP = CodeTemplate.from_file(TEMPLATE_PATH + "/RegisterCPU.cpp")
 
@@ -346,7 +344,6 @@ def declare_outputs():
     for f in core_files:
         core_file_manager.will_write(f)
     files = ['Declarations.yaml', 'TypeExtendedInterface.h', 'TypeDefault.cpp', 'TypeDefault.h',
-             'LegacyTHDispatcher.h',
              'Functions.h', 'NativeFunctions.h', 'RegisterCPU.cpp', 'RegisterCPU.h']
     for f in files:
         file_manager.will_write(f)
@@ -426,8 +423,6 @@ def generate_outputs():
     file_manager.write('TypeDefault.h', TYPE_DEFAULT_H, top_env)
     file_manager.write('TypeDefault.cpp', TYPE_DEFAULT_CPP, top_env)
 
-    file_manager.write('LegacyTHDispatcher.h', LEGACY_TH_DISPATCHER_H, top_env)
-
     file_manager.write('RegisterCPU.h', REGISTER_CPU_H, top_env)
     file_manager.write('RegisterCPU.cpp', REGISTER_CPU_CPP, top_env)