42 lines
1.5 KiB
C++
42 lines
1.5 KiB
C++
/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
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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 TENSORFLOW_COMPILER_XLA_SERVICE_CONVERT_OPERAND_FOLDING_H_
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#define TENSORFLOW_COMPILER_XLA_SERVICE_CONVERT_OPERAND_FOLDING_H_
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#include "tensorflow/compiler/xla/service/hlo_module.h"
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#include "tensorflow/compiler/xla/service/op_expander_pass.h"
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namespace xla {
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// Folds Convert operands to wider types into instructions that supports wider
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// result accumulation than the shape inference type.
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//
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// e.g. s32 hlo(s32 convert(s8), s32 convert(s8)) -> s32 hlo(s8, s8)
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class ConvertOperandFolding : public OpExpanderPass {
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public:
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absl::string_view name() const override { return "convert_operand_folding"; }
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protected:
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bool InstructionMatchesPattern(HloInstruction* instruction) override;
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StatusOr<HloInstruction*> ExpandInstruction(
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HloInstruction* instruction) override;
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};
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} // namespace xla
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#endif // TENSORFLOW_COMPILER_XLA_SERVICE_CONVERT_OPERAND_FOLDING_H_
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