lib/Sema/SemaExpr.cpp

530   const auto *UO = dyn_cast<UnaryOperator>(E->IgnoreParenCasts());
531   if (UO && UO->getOpcode() == UO_Deref &&
532       UO->getSubExpr()->getType()->isPointerType()) {
534         UO->getSubExpr()->getType()->getPointeeType().getAddressSpace();
537         UO->getSubExpr()->IgnoreParenCasts()->isNullPointerConstant(
539         !UO->getType().isVolatileQualified()) {
540       S.DiagRuntimeBehavior(UO->getOperatorLoc(), UO,
542                                 << UO->getSubExpr()->getSourceRange());
543       S.DiagRuntimeBehavior(UO->getOperatorLoc(), UO,
11277   UnaryOperator *UO = dyn_cast<UnaryOperator>(LHS.get()->IgnoreImpCasts());
11278   if (!UO || UO->getOpcode() != UO_LNot) return;
11284   Expr *SubExpr = UO->getSubExpr()->IgnoreImpCasts();
11289   S.Diag(UO->getOperatorLoc(), diag::warn_logical_not_on_lhs_of_check)
11298   S.Diag(UO->getOperatorLoc(), diag::note_logical_not_fix)
11309   S.Diag(UO->getOperatorLoc(), diag::note_logical_not_silence_with_parens)
12225     if (const auto *UO = dyn_cast<UnaryOperator>(XorRHS.get())) {
12226       UnaryOperatorKind Opc = UO->getOpcode();
12229       RHSInt = dyn_cast<IntegerLiteral>(UO->getSubExpr());
13052     if (UnaryOperator *UO = dyn_cast<UnaryOperator>(RHSCheck)) {
13053       if ((UO->getOpcode() == UO_Plus || UO->getOpcode() == UO_Minus) &&
13054           Loc.isFileID() && UO->getOperatorLoc().isFileID() &&
13056           Loc.getLocWithOffset(1) == UO->getOperatorLoc() &&
13059           Loc.getLocWithOffset(2) != UO->getSubExpr()->getBeginLoc() &&
13060           UO->getSubExpr()->getBeginLoc().isFileID()) {
13062           << (UO->getOpcode() == UO_Plus ? "+" : "-")
13063           << SourceRange(UO->getOperatorLoc(), UO->getOperatorLoc());
13369     UnaryOperator *UO = cast<UnaryOperator>(E);
13371     switch(UO->getOpcode()) {
13375       return getPrimaryDecl(UO->getSubExpr());
14852   auto *UO =
14856   if (Opc == UO_Deref && UO->getType()->hasAttr(attr::NoDeref) &&
14857       !isa<ArrayType>(UO->getType().getDesugaredType(Context)) &&
14859     ExprEvalContexts.back().PossibleDerefs.insert(UO);
14863     return convertVector(UO, Context.HalfTy, *this);
14864   return UO;
18165     auto *UO = cast<UnaryOperator>(E);
18166     if (UO->getOpcode() != UO_Extension)
18168     ExprResult Sub = Rebuild(UO->getSubExpr());
18171     return S.BuildUnaryOp(nullptr, UO->getOperatorLoc(), UO_Extension,