41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
/* Copyright 2022 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_RESHAPE_DECOMPOSER_H_
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#define XLA_SERVICE_RESHAPE_DECOMPOSER_H_
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#include "xla/service/hlo_pass_interface.h"
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namespace xla {
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// Decomposes a reshape which does not satisfy the ReshapeIsBitcast precondition
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// into a bitcast and a copy (physical transposition). Tries to create only one
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// transposition, but when it's not possible, creates two.
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//
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// Postcondition: All reshapes are turned into bitcasts.
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class ReshapeDecomposer : public HloModulePass {
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public:
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absl::string_view name() const override { return "reshape-decomposer"; }
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using HloPassInterface::Run;
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StatusOr<bool> Run(
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HloModule* module,
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const absl::flat_hash_set<absl::string_view>& execution_threads) override;
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};
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} // namespace xla
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#endif // XLA_SERVICE_RESHAPE_DECOMPOSER_H_
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