1 /* Copyright 2018 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #ifndef TENSORFLOW_COMPILER_XLA_SERVICE_LLVM_IR_BUFFER_ASSIGNMENT_UTIL_H_ 17 #define TENSORFLOW_COMPILER_XLA_SERVICE_LLVM_IR_BUFFER_ASSIGNMENT_UTIL_H_ 18 19 #include "tensorflow/compiler/xla/service/buffer_assignment.h" 20 21 namespace xla { 22 namespace llvm_ir { 23 // Sanitizes the HLO constant instruction name so that it can be used for the 24 // name of the corresponding constant buffer. In particular, it replaces . and 25 // - with _. 26 string SanitizeConstantName(const HloInstruction& instr); 27 string SanitizeConstantName(absl::string_view name); 28 29 string ConstantHloToGlobalName(const HloInstruction& instr); 30 string ConstantNameToGlobalName(absl::string_view name); 31 32 // In XLA:GPU we map constant buffer allocations to globals in the generated 33 // LLVM IR. This function gives us the name of the global variable a constant 34 // buffer is mapped to. Not used on XLA:CPU. 35 string ConstantBufferAllocationToGlobalName(const BufferAllocation& allocation); 36 37 // Returns the Literal corresponding to `allocation`, which must be a constant 38 // allocation. 39 const Literal& LiteralForConstantAllocation(const BufferAllocation& allocation); 40 } // namespace llvm_ir 41 } // namespace xla 42 43 #endif // TENSORFLOW_COMPILER_XLA_SERVICE_LLVM_IR_BUFFER_ASSIGNMENT_UTIL_H_ 44