| 1 | //===-- MPITypes.h - Functionality to model MPI concepts --------*- 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 | /// \file |
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| 10 | /// This file provides definitions to model concepts of MPI. The mpi::Request |
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| 11 | /// class defines a wrapper class, in order to make MPI requests trackable for |
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| 12 | /// path-sensitive analysis. |
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| 13 | /// |
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| 14 | //===----------------------------------------------------------------------===// |
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| 15 | |
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| 16 | #ifndef LLVM_CLANG_LIB_STATICANALYZER_CHECKERS_MPICHECKER_MPITYPES_H |
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| 17 | #define LLVM_CLANG_LIB_STATICANALYZER_CHECKERS_MPICHECKER_MPITYPES_H |
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| 18 | |
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| 19 | #include "clang/StaticAnalyzer/Checkers/MPIFunctionClassifier.h" |
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| 20 | #include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h" |
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| 21 | #include "llvm/ADT/SmallSet.h" |
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| 22 | |
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| 23 | namespace clang { |
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| 24 | namespace ento { |
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| 25 | namespace mpi { |
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| 26 | |
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| 27 | class Request { |
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| 28 | public: |
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| 29 | enum State : unsigned char { Nonblocking, Wait }; |
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| 30 | |
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| 31 | Request(State S) : CurrentState{S} {} |
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| 32 | |
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| 33 | void Profile(llvm::FoldingSetNodeID &Id) const { |
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| 34 | Id.AddInteger(I: CurrentState); |
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| 35 | } |
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| 36 | |
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| 37 | bool operator==(const Request &ToCompare) const { |
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| 38 | return CurrentState == ToCompare.CurrentState; |
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| 39 | } |
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| 40 | |
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| 41 | const State CurrentState; |
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| 42 | }; |
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| 43 | |
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| 44 | // The RequestMap stores MPI requests which are identified by their memory |
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| 45 | // region. Requests are used in MPI to complete nonblocking operations with wait |
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| 46 | // operations. A custom map implementation is used, in order to make it |
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| 47 | // available in an arbitrary amount of translation units. |
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| 48 | struct RequestMap {}; |
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| 49 | typedef llvm::ImmutableMap<const clang::ento::MemRegion *, |
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| 50 | clang::ento::mpi::Request> |
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| 51 | RequestMapImpl; |
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| 52 | |
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| 53 | } // end of namespace: mpi |
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| 54 | |
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| 55 | template <> |
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| 56 | struct ProgramStateTrait<mpi::RequestMap> |
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| 57 | : public ProgramStatePartialTrait<mpi::RequestMapImpl> { |
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| 58 | static void *GDMIndex() { |
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| 59 | static int index = 0; |
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| 60 | return &index; |
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| 61 | } |
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| 62 | }; |
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| 63 | |
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| 64 | } // end of namespace: ento |
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| 65 | } // end of namespace: clang |
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| 66 | #endif |
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| 67 | |
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