Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 219 deletions

diff --git a/gnu/llvm/tools/clang/lib/StaticAnalyzer/Checkers/NonNullParamChecker.cpp b/gnu/llvm/tools/clang/lib/StaticAnalyzer/Checkers/NonNullParamChecker.cpp
deleted file mode 100644
index 3c4363b6850..00000000000
--- a/gnu/llvm/tools/clang/lib/StaticAnalyzer/Checkers/NonNullParamChecker.cpp
+++ /dev/null
@@ -1,219 +0,0 @@
-//===--- NonNullParamChecker.cpp - Undefined arguments checker -*- C++ -*--===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This defines NonNullParamChecker, which checks for arguments expected not to
-// be null due to:
-//   - the corresponding parameters being declared to have nonnull attribute
-//   - the corresponding parameters being references; since the call would form
-//     a reference to a null pointer
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/StaticAnalyzer/Checkers/BuiltinCheckerRegistration.h"
-#include "clang/AST/Attr.h"
-#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
-#include "clang/StaticAnalyzer/Core/Checker.h"
-#include "clang/StaticAnalyzer/Core/CheckerManager.h"
-#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
-#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
-
-using namespace clang;
-using namespace ento;
-
-namespace {
-class NonNullParamChecker
-  : public Checker< check::PreCall, EventDispatcher<ImplicitNullDerefEvent> > {
-  mutable std::unique_ptr<BugType> BTAttrNonNull;
-  mutable std::unique_ptr<BugType> BTNullRefArg;
-
-public:
-
-  void checkPreCall(const CallEvent &Call, CheckerContext &C) const;
-
-  std::unique_ptr<BugReport>
-  genReportNullAttrNonNull(const ExplodedNode *ErrorN, const Expr *ArgE) const;
-  std::unique_ptr<BugReport>
-  genReportReferenceToNullPointer(const ExplodedNode *ErrorN,
-                                  const Expr *ArgE) const;
-};
-} // end anonymous namespace
-
-/// \return Bitvector marking non-null attributes.
-static llvm::SmallBitVector getNonNullAttrs(const CallEvent &Call) {
-  const Decl *FD = Call.getDecl();
-  unsigned NumArgs = Call.getNumArgs();
-  llvm::SmallBitVector AttrNonNull(NumArgs);
-  for (const auto *NonNull : FD->specific_attrs<NonNullAttr>()) {
-    if (!NonNull->args_size()) {
-      AttrNonNull.set(0, NumArgs);
-      break;
-    }
-    for (const ParamIdx &Idx : NonNull->args()) {
-      unsigned IdxAST = Idx.getASTIndex();
-      if (IdxAST >= NumArgs)
-        continue;
-      AttrNonNull.set(IdxAST);
-    }
-  }
-  return AttrNonNull;
-}
-
-void NonNullParamChecker::checkPreCall(const CallEvent &Call,
-                                       CheckerContext &C) const {
-  if (!Call.getDecl())
-    return;
-
-  llvm::SmallBitVector AttrNonNull = getNonNullAttrs(Call);
-  unsigned NumArgs = Call.getNumArgs();
-
-  ProgramStateRef state = C.getState();
-  ArrayRef<ParmVarDecl*> parms = Call.parameters();
-
-  for (unsigned idx = 0; idx < NumArgs; ++idx) {
-    // For vararg functions, a corresponding parameter decl may not exist.
-    bool HasParam = idx < parms.size();
-
-    // Check if the parameter is a reference. We want to report when reference
-    // to a null pointer is passed as a parameter.
-    bool haveRefTypeParam =
-        HasParam ? parms[idx]->getType()->isReferenceType() : false;
-    bool haveAttrNonNull = AttrNonNull[idx];
-
-    // Check if the parameter is also marked 'nonnull'.
-    if (!haveAttrNonNull && HasParam)
-      haveAttrNonNull = parms[idx]->hasAttr<NonNullAttr>();
-
-    if (!haveAttrNonNull && !haveRefTypeParam)
-      continue;
-
-    // If the value is unknown or undefined, we can't perform this check.
-    const Expr *ArgE = Call.getArgExpr(idx);
-    SVal V = Call.getArgSVal(idx);
-    auto DV = V.getAs<DefinedSVal>();
-    if (!DV)
-      continue;
-
-    assert(!haveRefTypeParam || DV->getAs<Loc>());
-
-    // Process the case when the argument is not a location.
-    if (haveAttrNonNull && !DV->getAs<Loc>()) {
-      // If the argument is a union type, we want to handle a potential
-      // transparent_union GCC extension.
-      if (!ArgE)
-        continue;
-
-      QualType T = ArgE->getType();
-      const RecordType *UT = T->getAsUnionType();
-      if (!UT || !UT->getDecl()->hasAttr<TransparentUnionAttr>())
-        continue;
-
-      auto CSV = DV->getAs<nonloc::CompoundVal>();
-
-      // FIXME: Handle LazyCompoundVals?
-      if (!CSV)
-        continue;
-
-      V = *(CSV->begin());
-      DV = V.getAs<DefinedSVal>();
-      assert(++CSV->begin() == CSV->end());
-      // FIXME: Handle (some_union){ some_other_union_val }, which turns into
-      // a LazyCompoundVal inside a CompoundVal.
-      if (!V.getAs<Loc>())
-        continue;
-
-      // Retrieve the corresponding expression.
-      if (const auto *CE = dyn_cast<CompoundLiteralExpr>(ArgE))
-        if (const auto *IE = dyn_cast<InitListExpr>(CE->getInitializer()))
-          ArgE = dyn_cast<Expr>(*(IE->begin()));
-    }
-
-    ConstraintManager &CM = C.getConstraintManager();
-    ProgramStateRef stateNotNull, stateNull;
-    std::tie(stateNotNull, stateNull) = CM.assumeDual(state, *DV);
-
-    // Generate an error node.  Check for a null node in case
-    // we cache out.
-    if (stateNull && !stateNotNull) {
-      if (ExplodedNode *errorNode = C.generateErrorNode(stateNull)) {
-
-        std::unique_ptr<BugReport> R;
-        if (haveAttrNonNull)
-          R = genReportNullAttrNonNull(errorNode, ArgE);
-        else if (haveRefTypeParam)
-          R = genReportReferenceToNullPointer(errorNode, ArgE);
-
-        // Highlight the range of the argument that was null.
-        R->addRange(Call.getArgSourceRange(idx));
-
-        // Emit the bug report.
-        C.emitReport(std::move(R));
-      }
-
-      // Always return.  Either we cached out or we just emitted an error.
-      return;
-    }
-
-    if (stateNull) {
-      if (ExplodedNode *N = C.generateSink(stateNull, C.getPredecessor())) {
-        ImplicitNullDerefEvent event = {
-          V, false, N, &C.getBugReporter(),
-          /*IsDirectDereference=*/haveRefTypeParam};
-        dispatchEvent(event);
-      }
-    }
-
-    // If a pointer value passed the check we should assume that it is
-    // indeed not null from this point forward.
-    state = stateNotNull;
-  }
-
-  // If we reach here all of the arguments passed the nonnull check.
-  // If 'state' has been updated generated a new node.
-  C.addTransition(state);
-}
-
-std::unique_ptr<BugReport>
-NonNullParamChecker::genReportNullAttrNonNull(const ExplodedNode *ErrorNode,
-                                              const Expr *ArgE) const {
-  // Lazily allocate the BugType object if it hasn't already been
-  // created. Ownership is transferred to the BugReporter object once
-  // the BugReport is passed to 'EmitWarning'.
-  if (!BTAttrNonNull)
-    BTAttrNonNull.reset(new BugType(
-        this, "Argument with 'nonnull' attribute passed null", "API"));
-
-  auto R = llvm::make_unique<BugReport>(
-      *BTAttrNonNull,
-      "Null pointer passed as an argument to a 'nonnull' parameter", ErrorNode);
-  if (ArgE)
-    bugreporter::trackExpressionValue(ErrorNode, ArgE, *R);
-
-  return R;
-}
-
-std::unique_ptr<BugReport> NonNullParamChecker::genReportReferenceToNullPointer(
-    const ExplodedNode *ErrorNode, const Expr *ArgE) const {
-  if (!BTNullRefArg)
-    BTNullRefArg.reset(new BuiltinBug(this, "Dereference of null pointer"));
-
-  auto R = llvm::make_unique<BugReport>(
-      *BTNullRefArg, "Forming reference to null pointer", ErrorNode);
-  if (ArgE) {
-    const Expr *ArgEDeref = bugreporter::getDerefExpr(ArgE);
-    if (!ArgEDeref)
-      ArgEDeref = ArgE;
-    bugreporter::trackExpressionValue(ErrorNode, ArgEDeref, *R);
-  }
-  return R;
-
-}
-
-void ento::registerNonNullParamChecker(CheckerManager &mgr) {
-  mgr.registerChecker<NonNullParamChecker>();
-}