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1 //===- DebugTranslation.h - MLIR to LLVM Debug conversion -------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // This file implements the translation between an MLIR debug information and
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10 // the corresponding LLVMIR representation.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #ifndef MLIR_LIB_TARGET_LLVMIR_DEBUGTRANSLATION_H_
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15 #define MLIR_LIB_TARGET_LLVMIR_DEBUGTRANSLATION_H_
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16
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17 #include "mlir/IR/Location.h"
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18 #include "llvm/ADT/SmallString.h"
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19 #include "llvm/ADT/StringMap.h"
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20 #include "llvm/IR/DIBuilder.h"
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21
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22 namespace mlir {
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23 class Operation;
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24
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25 namespace LLVM {
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26 class LLVMFuncOp;
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27
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28 namespace detail {
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29 class DebugTranslation {
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30 public:
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31 DebugTranslation(Operation *module, llvm::Module &llvmModule);
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32
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33 /// Finalize the translation of debug information.
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34 void finalize();
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35
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36 /// Translate the given location to an llvm debug location.
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37 const llvm::DILocation *translateLoc(Location loc, llvm::DILocalScope *scope);
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38
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39 /// Translate the debug information for the given function.
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40 void translate(LLVMFuncOp func, llvm::Function &llvmFunc);
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41
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42 private:
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43 /// Translate the given location to an llvm debug location with the given
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44 /// scope and inlinedAt parameters.
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45 const llvm::DILocation *translateLoc(Location loc, llvm::DILocalScope *scope,
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46 const llvm::DILocation *inlinedAt);
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47
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48 /// Create an llvm debug file for the given file path.
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49 llvm::DIFile *translateFile(StringRef fileName);
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50
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51 /// A mapping between mlir location+scope and the corresponding llvm debug
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52 /// metadata.
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53 DenseMap<std::pair<Location, llvm::DILocalScope *>, const llvm::DILocation *>
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54 locationToLoc;
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55
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56 /// A mapping between filename and llvm debug file.
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207
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57 /// TODO: Change this to DenseMap<Identifier, ...> when we can
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150
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58 /// access the Identifier filename in FileLineColLoc.
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59 llvm::StringMap<llvm::DIFile *> fileMap;
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60
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61 /// A string containing the current working directory of the compiler.
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62 SmallString<256> currentWorkingDir;
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63
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64 /// Debug information fields.
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65 llvm::DIBuilder builder;
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66 llvm::LLVMContext &llvmCtx;
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67 llvm::DICompileUnit *compileUnit;
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68 };
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69
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70 } // end namespace detail
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71 } // end namespace LLVM
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72 } // end namespace mlir
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73
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74 #endif // MLIR_LIB_TARGET_LLVMIR_DEBUGTRANSLATION_H_
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