buffer_region.h

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * 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,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 */
#ifndef TVM_TIRX_BUFFER_REGION_H_
#define TVM_TIRX_BUFFER_REGION_H_
 
#include <tvm/ffi/reflection/registry.h>
#include <tvm/ir/expr.h>
#include <tvm/tirx/buffer.h>
 
namespace tvm {
namespace tirx {
 
class BufferRegionTypeNode : public TypeNode {
 public:
  static void RegisterReflection() {
    namespace refl = tvm::ffi::reflection;
    refl::ObjectDef<BufferRegionTypeNode>();
  }
 
  TVM_FFI_DECLARE_OBJECT_INFO_FINAL("tirx.BufferRegionType", BufferRegionTypeNode, TypeNode);
};
 
class BufferRegionType : public Type {
 public:
  TVM_DLL BufferRegionType();
 
  TVM_FFI_DEFINE_OBJECT_REF_METHODS_NOTNULLABLE(BufferRegionType, Type, BufferRegionTypeNode);
};
 
class BufferRegionNode : public ExprNode {
 public:
  BufferVar buffer;
  ffi::Array<Range> region;
 
  static void RegisterReflection() {
    namespace refl = tvm::ffi::reflection;
    refl::ObjectDef<BufferRegionNode>()
        .def_ro("buffer", &BufferRegionNode::buffer, refl::AttachFieldFlag::SEqHashDefRecursive())
        .def_ro("region", &BufferRegionNode::region);
  }
 
  static constexpr TVMFFISEqHashKind _type_s_eq_hash_kind = kTVMFFISEqHashKindTreeNode;
  TVM_FFI_DECLARE_OBJECT_INFO_FINAL("tirx.BufferRegion", BufferRegionNode, ExprNode);
};
 
class BufferRegion : public Expr {
 public:
  TVM_DLL explicit BufferRegion(BufferVar buffer, ffi::Array<Range> region, Span span = Span());
 
  TVM_DLL static BufferRegion FullRegion(BufferVar buffer);
  TVM_DLL static BufferRegion FromPoint(BufferVar buffer, ffi::Array<PrimExpr> indices);
 
  TVM_FFI_DEFINE_OBJECT_REF_METHODS_NULLABLE(BufferRegion, Expr, BufferRegionNode);
  TVM_DEFINE_OBJECT_REF_COW_METHOD(BufferRegionNode);
};
 
}  // namespace tirx
}  // namespace tvm
 
#endif  // TVM_TIRX_BUFFER_REGION_H_