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locks; strict;
comment	@// @;


1.1
date	2017.01.11.10.35.42;	author joerg;	state Exp;
branches
	1.1.1.1;
next	;
commitid	CNnUNfII1jgNmxBz;

1.1.1.1
date	2017.01.11.10.35.42;	author joerg;	state Exp;
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	1.1.1.1.4.1
	1.1.1.1.16.1;
next	1.1.1.2;
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1.1.1.2
date	2019.11.13.22.19.28;	author joerg;	state dead;
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next	;
commitid	QD8YATxuNG34YJKB;

1.1.1.1.4.1
date	2017.01.11.10.35.42;	author pgoyette;	state dead;
branches;
next	1.1.1.1.4.2;
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1.1.1.1.4.2
date	2017.03.20.06.52.42;	author pgoyette;	state Exp;
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1.1.1.1.16.1
date	2020.04.13.07.46.39;	author martin;	state dead;
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next	;
commitid	X01YhRUPVUDaec4C;


desc
@@


1.1
log
@Initial revision
@
text
@//===-- MPIBugReporter.cpp - bug reporter -----------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file defines prefabricated reports which are emitted in
/// case of MPI related bugs, detected by path-sensitive analysis.
///
//===----------------------------------------------------------------------===//

#include "MPIBugReporter.h"
#include "MPIChecker.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"

namespace clang {
namespace ento {
namespace mpi {

void MPIBugReporter::reportDoubleNonblocking(
    const CallEvent &MPICallEvent, const ento::mpi::Request &Req,
    const MemRegion *const RequestRegion,
    const ExplodedNode *const ExplNode,
    BugReporter &BReporter) const {

  std::string ErrorText;
  ErrorText = "Double nonblocking on request " +
              RequestRegion->getDescriptiveName() + ". ";

  auto Report = llvm::make_unique<BugReport>(*DoubleNonblockingBugType,
                                             ErrorText, ExplNode);

  Report->addRange(MPICallEvent.getSourceRange());
  SourceRange Range = RequestRegion->sourceRange();

  if (Range.isValid())
    Report->addRange(Range);

  Report->addVisitor(llvm::make_unique<RequestNodeVisitor>(
      RequestRegion, "Request is previously used by nonblocking call here. "));
  Report->markInteresting(RequestRegion);

  BReporter.emitReport(std::move(Report));
}

void MPIBugReporter::reportMissingWait(
    const ento::mpi::Request &Req, const MemRegion *const RequestRegion,
    const ExplodedNode *const ExplNode,
    BugReporter &BReporter) const {
  std::string ErrorText{"Request " + RequestRegion->getDescriptiveName() +
                        " has no matching wait. "};

  auto Report =
      llvm::make_unique<BugReport>(*MissingWaitBugType, ErrorText, ExplNode);

  SourceRange Range = RequestRegion->sourceRange();
  if (Range.isValid())
    Report->addRange(Range);
  Report->addVisitor(llvm::make_unique<RequestNodeVisitor>(
      RequestRegion, "Request is previously used by nonblocking call here. "));
  Report->markInteresting(RequestRegion);

  BReporter.emitReport(std::move(Report));
}

void MPIBugReporter::reportUnmatchedWait(
    const CallEvent &CE, const clang::ento::MemRegion *const RequestRegion,
    const ExplodedNode *const ExplNode,
    BugReporter &BReporter) const {
  std::string ErrorText{"Request " + RequestRegion->getDescriptiveName() +
                        " has no matching nonblocking call. "};

  auto Report =
      llvm::make_unique<BugReport>(*UnmatchedWaitBugType, ErrorText, ExplNode);

  Report->addRange(CE.getSourceRange());
  SourceRange Range = RequestRegion->sourceRange();
  if (Range.isValid())
    Report->addRange(Range);

  BReporter.emitReport(std::move(Report));
}

std::shared_ptr<PathDiagnosticPiece>
MPIBugReporter::RequestNodeVisitor::VisitNode(const ExplodedNode *N,
                                              const ExplodedNode *PrevN,
                                              BugReporterContext &BRC,
                                              BugReport &BR) {

  if (IsNodeFound)
    return nullptr;

  const Request *const Req = N->getState()->get<RequestMap>(RequestRegion);
  const Request *const PrevReq =
      PrevN->getState()->get<RequestMap>(RequestRegion);

  // Check if request was previously unused or in a different state.
  if ((Req && !PrevReq) || (Req->CurrentState != PrevReq->CurrentState)) {
    IsNodeFound = true;

    ProgramPoint P = PrevN->getLocation();
    PathDiagnosticLocation L =
        PathDiagnosticLocation::create(P, BRC.getSourceManager());

    return std::make_shared<PathDiagnosticEventPiece>(L, ErrorText);
  }

  return nullptr;
}

} // end of namespace: mpi
} // end of namespace: ento
} // end of namespace: clang
@


1.1.1.1
log
@Import Clang pre-4.0.0 r291444.
@
text
@@


1.1.1.1.16.1
log
@Mostly merge changes from HEAD upto 20200411
@
text
@@


1.1.1.2
log
@Mark old LLVM instance as dead.
@
text
@@


1.1.1.1.4.1
log
@file MPIBugReporter.cpp was added on branch pgoyette-localcount on 2017-03-20 06:52:42 +0000
@
text
@d1 117
@


1.1.1.1.4.2
log
@Sync with HEAD
@
text
@a0 117
//===-- MPIBugReporter.cpp - bug reporter -----------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file defines prefabricated reports which are emitted in
/// case of MPI related bugs, detected by path-sensitive analysis.
///
//===----------------------------------------------------------------------===//

#include "MPIBugReporter.h"
#include "MPIChecker.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"

namespace clang {
namespace ento {
namespace mpi {

void MPIBugReporter::reportDoubleNonblocking(
    const CallEvent &MPICallEvent, const ento::mpi::Request &Req,
    const MemRegion *const RequestRegion,
    const ExplodedNode *const ExplNode,
    BugReporter &BReporter) const {

  std::string ErrorText;
  ErrorText = "Double nonblocking on request " +
              RequestRegion->getDescriptiveName() + ". ";

  auto Report = llvm::make_unique<BugReport>(*DoubleNonblockingBugType,
                                             ErrorText, ExplNode);

  Report->addRange(MPICallEvent.getSourceRange());
  SourceRange Range = RequestRegion->sourceRange();

  if (Range.isValid())
    Report->addRange(Range);

  Report->addVisitor(llvm::make_unique<RequestNodeVisitor>(
      RequestRegion, "Request is previously used by nonblocking call here. "));
  Report->markInteresting(RequestRegion);

  BReporter.emitReport(std::move(Report));
}

void MPIBugReporter::reportMissingWait(
    const ento::mpi::Request &Req, const MemRegion *const RequestRegion,
    const ExplodedNode *const ExplNode,
    BugReporter &BReporter) const {
  std::string ErrorText{"Request " + RequestRegion->getDescriptiveName() +
                        " has no matching wait. "};

  auto Report =
      llvm::make_unique<BugReport>(*MissingWaitBugType, ErrorText, ExplNode);

  SourceRange Range = RequestRegion->sourceRange();
  if (Range.isValid())
    Report->addRange(Range);
  Report->addVisitor(llvm::make_unique<RequestNodeVisitor>(
      RequestRegion, "Request is previously used by nonblocking call here. "));
  Report->markInteresting(RequestRegion);

  BReporter.emitReport(std::move(Report));
}

void MPIBugReporter::reportUnmatchedWait(
    const CallEvent &CE, const clang::ento::MemRegion *const RequestRegion,
    const ExplodedNode *const ExplNode,
    BugReporter &BReporter) const {
  std::string ErrorText{"Request " + RequestRegion->getDescriptiveName() +
                        " has no matching nonblocking call. "};

  auto Report =
      llvm::make_unique<BugReport>(*UnmatchedWaitBugType, ErrorText, ExplNode);

  Report->addRange(CE.getSourceRange());
  SourceRange Range = RequestRegion->sourceRange();
  if (Range.isValid())
    Report->addRange(Range);

  BReporter.emitReport(std::move(Report));
}

std::shared_ptr<PathDiagnosticPiece>
MPIBugReporter::RequestNodeVisitor::VisitNode(const ExplodedNode *N,
                                              const ExplodedNode *PrevN,
                                              BugReporterContext &BRC,
                                              BugReport &BR) {

  if (IsNodeFound)
    return nullptr;

  const Request *const Req = N->getState()->get<RequestMap>(RequestRegion);
  const Request *const PrevReq =
      PrevN->getState()->get<RequestMap>(RequestRegion);

  // Check if request was previously unused or in a different state.
  if ((Req && !PrevReq) || (Req->CurrentState != PrevReq->CurrentState)) {
    IsNodeFound = true;

    ProgramPoint P = PrevN->getLocation();
    PathDiagnosticLocation L =
        PathDiagnosticLocation::create(P, BRC.getSourceManager());

    return std::make_shared<PathDiagnosticEventPiece>(L, ErrorText);
  }

  return nullptr;
}

} // end of namespace: mpi
} // end of namespace: ento
} // end of namespace: clang
@