mutator.h

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 * distributed with this work for additional information
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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
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 * KIND, either express or implied.  See the License for the
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#ifndef TVM_META_SCHEDULE_MUTATOR_H_
#define TVM_META_SCHEDULE_MUTATOR_H_
 
#include <tvm/ffi/function.h>
#include <tvm/ffi/optional.h>
#include <tvm/ffi/reflection/registry.h>
#include <tvm/runtime/object.h>
#include <tvm/support/random_engine.h>
#include <tvm/tir/schedule/schedule.h>
#include <tvm/tir/schedule/trace.h>
 
namespace tvm {
namespace meta_schedule {
 
class TuneContext;
class Mutator;
 
class MutatorNode : public runtime::Object {
 public:
  virtual ~MutatorNode() = default;
 
  static void RegisterReflection() {
    // No fields to register
  }
 
  virtual void InitializeWithTuneContext(const TuneContext& context) = 0;
 
  virtual ffi::Optional<tir::Trace> Apply(
      const tir::Trace& trace, support::LinearCongruentialEngine::TRandState* rand_state) = 0;
 
  virtual Mutator Clone() const = 0;
 
  static constexpr const bool _type_mutable = true;
  TVM_FFI_DECLARE_OBJECT_INFO("meta_schedule.Mutator", MutatorNode, Object);
};
 
class Mutator : public runtime::ObjectRef {
 public:
  using FInitializeWithTuneContext = ffi::TypedFunction<void(const TuneContext&)>;
  using FApply = ffi::TypedFunction<ffi::Optional<tir::Trace>(
      const tir::Trace&, support::LinearCongruentialEngine::TRandState rand_state)>;
  using FClone = ffi::TypedFunction<Mutator()>;
  using FAsString = ffi::TypedFunction<ffi::String()>;
  TVM_DLL static Mutator MutateTileSize();
  TVM_DLL static Mutator MutateParallel(int64_t max_jobs_per_core);
  TVM_DLL static Mutator MutateUnroll();
  TVM_DLL static Mutator MutateComputeLocation();
  TVM_DLL static Mutator MutateThreadBinding();
  TVM_DLL static Mutator PyMutator(FInitializeWithTuneContext f_initialize_with_tune_context,
                                   FApply f_apply, FClone f_clone, FAsString f_as_string);
  TVM_DLL static ffi::Map<Mutator, FloatImm, void> DefaultLLVM();
  TVM_DLL static ffi::Map<Mutator, FloatImm, void> DefaultCUDA();
  TVM_DLL static ffi::Map<Mutator, FloatImm, void> DefaultCUDATensorCore();
  TVM_DLL static ffi::Map<Mutator, FloatImm, void> DefaultHexagon();
 
  TVM_FFI_DEFINE_OBJECT_REF_METHODS_NULLABLE(Mutator, ObjectRef, MutatorNode);
};
 
class PyMutatorNode : public MutatorNode {
 public:
  using FInitializeWithTuneContext = Mutator::FInitializeWithTuneContext;
  using FApply = Mutator::FApply;
  using FClone = Mutator::FClone;
  using FAsString = Mutator::FAsString;
  FInitializeWithTuneContext f_initialize_with_tune_context;
  FApply f_apply;
  FClone f_clone;
  FAsString f_as_string;
 
  static void RegisterReflection() {
    // `f_initialize_with_tune_context` is not registered
    // `f_apply` is not registered
    // `f_clone` is not registered
    // `f_as_string` is not registered
  }
 
  void InitializeWithTuneContext(const TuneContext& context) final;
  ffi::Optional<tir::Trace> Apply(const tir::Trace& trace,
                                  support::LinearCongruentialEngine::TRandState* rand_state) final;
  Mutator Clone() const final;
  TVM_FFI_DECLARE_OBJECT_INFO_FINAL("meta_schedule.PyMutator", PyMutatorNode, MutatorNode);
};
 
}  // namespace meta_schedule
}  // namespace tvm
 
#endif  // TVM_META_SCHEDULE_MUTATOR_H_