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Diffstat (limited to 'tensorflow/compiler/xla/service/llvm_ir/sort_util.h')
-rw-r--r-- | tensorflow/compiler/xla/service/llvm_ir/sort_util.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tensorflow/compiler/xla/service/llvm_ir/sort_util.h b/tensorflow/compiler/xla/service/llvm_ir/sort_util.h new file mode 100644 index 0000000000..e75f9b08fb --- /dev/null +++ b/tensorflow/compiler/xla/service/llvm_ir/sort_util.h @@ -0,0 +1,39 @@ +/* Copyright 2018 The TensorFlow Authors. All Rights Reserved. + +Licensed 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 under the License. +==============================================================================*/ + +#ifndef TENSORFLOW_COMPILER_XLA_SERVICE_LLVM_IR_SORT_UTIL_H_ +#define TENSORFLOW_COMPILER_XLA_SERVICE_LLVM_IR_SORT_UTIL_H_ + +#include "llvm/IR/Value.h" +#include "tensorflow/compiler/xla/service/gpu/partition_assignment.h" +#include "tensorflow/compiler/xla/service/llvm_ir/ir_array.h" +#include "tensorflow/core/lib/core/status.h" +#include "tensorflow/core/lib/core/stringpiece.h" +#include "tensorflow/core/platform/types.h" + +namespace xla { +namespace llvm_ir { +// Emits llvm IR to do pairwise comparisons/swaps in the 'dimension_to_sort' +// dimension of 'keys_array'. All other dimensions are kept as-is. This +// implements the inner loop of BitonicSort. If 'launch_dimensions' is nullptr, +// the inner compare loop will not be parallelized. +Status EmitSortInPlace(int64 dimension_to_sort, const IrArray& keys_array, + tensorflow::StringPiece name, llvm::Value* xor_mask, + llvm::IRBuilder<>* b, + const gpu::LaunchDimensions* launch_dimensions); +} // namespace llvm_ir +} // namespace xla + +#endif // TENSORFLOW_COMPILER_XLA_SERVICE_LLVM_IR_SORT_UTIL_H_ |