| 1 | //===-- Error.h -------------------------------------------------*- 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 | #ifndef LLVM_TOOLS_LLVM_EXEGESIS_ERROR_H |
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| 10 | #define LLVM_TOOLS_LLVM_EXEGESIS_ERROR_H |
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| 11 | |
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| 12 | #include "llvm/ADT/Twine.h" |
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| 13 | #include "llvm/Support/Error.h" |
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| 14 | |
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| 15 | namespace llvm { |
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| 16 | namespace exegesis { |
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| 17 | |
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| 18 | // A class representing failures that happened within llvm-exegesis, they are |
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| 19 | // used to report informations to the user. |
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| 20 | class Failure : public StringError { |
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| 21 | public: |
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| 22 | Failure(const Twine &S) : StringError(S, inconvertibleErrorCode()) {} |
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| 23 | }; |
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| 24 | |
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| 25 | // A class representing failures that happened during clustering calculations. |
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| 26 | class ClusteringError : public ErrorInfo<ClusteringError> { |
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| 27 | public: |
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| 28 | static char ID; |
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| 29 | ClusteringError(const Twine &S) : Msg(S.str()) {} |
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| 30 | |
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| 31 | void log(raw_ostream &OS) const override; |
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| 32 | |
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| 33 | std::error_code convertToErrorCode() const override; |
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| 34 | |
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| 35 | private: |
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| 36 | std::string Msg; |
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| 37 | }; |
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| 38 | |
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| 39 | // A class representing a non-descript snippet execution failure. This class |
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| 40 | // is designed to sub-classed into more specific failures that contain |
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| 41 | // additional data about the specific error that they represent. Instead of |
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| 42 | // halting the program, the errors are reported in the output. |
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| 43 | class SnippetExecutionFailure : public ErrorInfo<SnippetExecutionFailure> { |
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| 44 | public: |
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| 45 | static char ID; |
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| 46 | |
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| 47 | std::error_code convertToErrorCode() const override; |
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| 48 | }; |
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| 49 | |
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| 50 | // A class representing specifically segmentation faults that happen during |
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| 51 | // snippet execution. |
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| 52 | class SnippetSegmentationFault : public SnippetExecutionFailure { |
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| 53 | public: |
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| 54 | static char ID; |
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| 55 | SnippetSegmentationFault(intptr_t SegFaultAddress) |
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| 56 | : Address(SegFaultAddress){}; |
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| 57 | |
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| 58 | intptr_t getAddress() { return Address; } |
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| 59 | |
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| 60 | void log(raw_ostream &OS) const override; |
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| 61 | |
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| 62 | private: |
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| 63 | intptr_t Address; |
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| 64 | }; |
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| 65 | |
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| 66 | // A class representing all other non-specific failures that happen during |
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| 67 | // snippet execution. |
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| 68 | class SnippetSignal : public SnippetExecutionFailure { |
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| 69 | public: |
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| 70 | static char ID; |
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| 71 | SnippetSignal(int Signal) : SignalNumber(Signal){}; |
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| 72 | |
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| 73 | void log(raw_ostream &OS) const override; |
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| 74 | |
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| 75 | private: |
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| 76 | int SignalNumber; |
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| 77 | }; |
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| 78 | |
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| 79 | } // namespace exegesis |
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| 80 | } // namespace llvm |
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| 81 | |
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| 82 | #endif |
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| 83 | |
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