61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/* Copyright 2017 The OpenXLA Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#ifndef XLA_SERVICE_LOGICAL_BUFFER_H_
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#define XLA_SERVICE_LOGICAL_BUFFER_H_
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#include <string>
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#include "absl/types/span.h"
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#include "xla/hlo/ir/hlo_instruction.h"
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#include "xla/service/buffer_value.h"
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#include "xla/service/hlo.pb.h"
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#include "xla/shape_util.h"
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#include "xla/types.h"
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#include "xla/xla_data.pb.h"
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#include "tsl/lib/gtl/int_type.h"
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namespace xla {
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// TuplePointsToAnalysis uses this subclass of BufferValue.
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class LogicalBuffer : public BufferValue {
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public:
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LogicalBuffer(HloInstruction* instruction, const ShapeIndex& index, Id id);
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// Return the instruction that defines the buffer.
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HloInstruction* instruction() const override { return instruction_; }
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// Return the index within the output of the instruction where the buffer is
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// defined. Index used defined as in ShapeUtil::GetSubshape()
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const ShapeIndex& index() const override { return index_; }
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// Return the shape of the buffer. This reference points into the shape field
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// of the instruction defining the buffer. Therefore, the returned shape will
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// contain the layout of instruction, if any.
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const Shape& shape() const override {
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return ShapeUtil::GetSubshape(instruction_->shape(), index_);
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}
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std::string ToString() const override;
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private:
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HloInstruction* instruction_;
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ShapeIndex index_;
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};
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} // namespace xla
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#endif // XLA_SERVICE_LOGICAL_BUFFER_H_
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