//
//===----------------------------------------------------------------------===//
-#include "clang/AST/APValue.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Attr.h"
#include "clang/AST/DeclCXX.h"
#include <cstring>
using namespace clang;
-const CXXRecordDecl *Expr::getBestDynamicClassType() const {
- const Expr *E = ignoreParenBaseCasts();
+const Expr *Expr::getBestDynamicClassTypeExpr() const {
+ const Expr *E = this;
+ while (true) {
+ E = E->ignoreParenBaseCasts();
+
+ // Follow the RHS of a comma operator.
+ if (auto *BO = dyn_cast<BinaryOperator>(E)) {
+ if (BO->getOpcode() == BO_Comma) {
+ E = BO->getRHS();
+ continue;
+ }
+ }
+
+ // Step into initializer for materialized temporaries.
+ if (auto *MTE = dyn_cast<MaterializeTemporaryExpr>(E)) {
+ E = MTE->GetTemporaryExpr();
+ continue;
+ }
+ break;
+ }
+
+ return E;
+}
+
+const CXXRecordDecl *Expr::getBestDynamicClassType() const {
+ const Expr *E = getBestDynamicClassTypeExpr();
QualType DerivedType = E->getType();
if (const PointerType *PTy = DerivedType->getAs<PointerType>())
DerivedType = PTy->getPointeeType();
DeclRefExpr::DeclRefExpr(const ASTContext &Ctx,
NestedNameSpecifierLoc QualifierLoc,
SourceLocation TemplateKWLoc,
- ValueDecl *D, bool RefersToEnclosingLocal,
+ ValueDecl *D, bool RefersToEnclosingVariableOrCapture,
const DeclarationNameInfo &NameInfo,
NamedDecl *FoundD,
const TemplateArgumentListInfo *TemplateArgs,
D(D), Loc(NameInfo.getLoc()), DNLoc(NameInfo.getInfo()) {
DeclRefExprBits.HasQualifier = QualifierLoc ? 1 : 0;
if (QualifierLoc) {
- getInternalQualifierLoc() = QualifierLoc;
+ new (getTrailingObjects<NestedNameSpecifierLoc>())
+ NestedNameSpecifierLoc(QualifierLoc);
auto *NNS = QualifierLoc.getNestedNameSpecifier();
if (NNS->isInstantiationDependent())
ExprBits.InstantiationDependent = true;
}
DeclRefExprBits.HasFoundDecl = FoundD ? 1 : 0;
if (FoundD)
- getInternalFoundDecl() = FoundD;
+ *getTrailingObjects<NamedDecl *>() = FoundD;
DeclRefExprBits.HasTemplateKWAndArgsInfo
= (TemplateArgs || TemplateKWLoc.isValid()) ? 1 : 0;
- DeclRefExprBits.RefersToEnclosingLocal = RefersToEnclosingLocal;
+ DeclRefExprBits.RefersToEnclosingVariableOrCapture =
+ RefersToEnclosingVariableOrCapture;
if (TemplateArgs) {
bool Dependent = false;
bool InstantiationDependent = false;
bool ContainsUnexpandedParameterPack = false;
- getTemplateKWAndArgsInfo()->initializeFrom(TemplateKWLoc, *TemplateArgs,
- Dependent,
- InstantiationDependent,
- ContainsUnexpandedParameterPack);
+ getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
+ TemplateKWLoc, *TemplateArgs, getTrailingObjects<TemplateArgumentLoc>(),
+ Dependent, InstantiationDependent, ContainsUnexpandedParameterPack);
assert(!Dependent && "built a DeclRefExpr with dependent template args");
ExprBits.InstantiationDependent |= InstantiationDependent;
ExprBits.ContainsUnexpandedParameterPack |= ContainsUnexpandedParameterPack;
} else if (TemplateKWLoc.isValid()) {
- getTemplateKWAndArgsInfo()->initializeFrom(TemplateKWLoc);
+ getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
+ TemplateKWLoc);
}
DeclRefExprBits.HadMultipleCandidates = 0;
NestedNameSpecifierLoc QualifierLoc,
SourceLocation TemplateKWLoc,
ValueDecl *D,
- bool RefersToEnclosingLocal,
+ bool RefersToEnclosingVariableOrCapture,
SourceLocation NameLoc,
QualType T,
ExprValueKind VK,
NamedDecl *FoundD,
const TemplateArgumentListInfo *TemplateArgs) {
return Create(Context, QualifierLoc, TemplateKWLoc, D,
- RefersToEnclosingLocal,
+ RefersToEnclosingVariableOrCapture,
DeclarationNameInfo(D->getDeclName(), NameLoc),
T, VK, FoundD, TemplateArgs);
}
NestedNameSpecifierLoc QualifierLoc,
SourceLocation TemplateKWLoc,
ValueDecl *D,
- bool RefersToEnclosingLocal,
+ bool RefersToEnclosingVariableOrCapture,
const DeclarationNameInfo &NameInfo,
QualType T,
ExprValueKind VK,
if (D == FoundD)
FoundD = nullptr;
- std::size_t Size = sizeof(DeclRefExpr);
- if (QualifierLoc)
- Size += sizeof(NestedNameSpecifierLoc);
- if (FoundD)
- Size += sizeof(NamedDecl *);
- if (TemplateArgs)
- Size += ASTTemplateKWAndArgsInfo::sizeFor(TemplateArgs->size());
- else if (TemplateKWLoc.isValid())
- Size += ASTTemplateKWAndArgsInfo::sizeFor(0);
+ bool HasTemplateKWAndArgsInfo = TemplateArgs || TemplateKWLoc.isValid();
+ std::size_t Size =
+ totalSizeToAlloc<NestedNameSpecifierLoc, NamedDecl *,
+ ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
+ QualifierLoc ? 1 : 0, FoundD ? 1 : 0,
+ HasTemplateKWAndArgsInfo ? 1 : 0,
+ TemplateArgs ? TemplateArgs->size() : 0);
- void *Mem = Context.Allocate(Size, llvm::alignOf<DeclRefExpr>());
+ void *Mem = Context.Allocate(Size, alignof(DeclRefExpr));
return new (Mem) DeclRefExpr(Context, QualifierLoc, TemplateKWLoc, D,
- RefersToEnclosingLocal,
+ RefersToEnclosingVariableOrCapture,
NameInfo, FoundD, TemplateArgs, T, VK);
}
bool HasFoundDecl,
bool HasTemplateKWAndArgsInfo,
unsigned NumTemplateArgs) {
- std::size_t Size = sizeof(DeclRefExpr);
- if (HasQualifier)
- Size += sizeof(NestedNameSpecifierLoc);
- if (HasFoundDecl)
- Size += sizeof(NamedDecl *);
- if (HasTemplateKWAndArgsInfo)
- Size += ASTTemplateKWAndArgsInfo::sizeFor(NumTemplateArgs);
-
- void *Mem = Context.Allocate(Size, llvm::alignOf<DeclRefExpr>());
+ assert(NumTemplateArgs == 0 || HasTemplateKWAndArgsInfo);
+ std::size_t Size =
+ totalSizeToAlloc<NestedNameSpecifierLoc, NamedDecl *,
+ ASTTemplateKWAndArgsInfo, TemplateArgumentLoc>(
+ HasQualifier ? 1 : 0, HasFoundDecl ? 1 : 0, HasTemplateKWAndArgsInfo,
+ NumTemplateArgs);
+ void *Mem = Context.Allocate(Size, alignof(DeclRefExpr));
return new (Mem) DeclRefExpr(EmptyShell());
}
else
MC->mangleName(ND, Out);
- Out.flush();
if (!Buffer.empty() && Buffer.front() == '\01')
return Buffer.substr(1);
return Buffer.str();
}
return "";
}
- if (auto *BD = dyn_cast<BlockDecl>(CurrentDecl)) {
- std::unique_ptr<MangleContext> MC;
- MC.reset(Context.createMangleContext());
- SmallString<256> Buffer;
- llvm::raw_svector_ostream Out(Buffer);
+ if (isa<BlockDecl>(CurrentDecl)) {
+ // For blocks we only emit something if it is enclosed in a function
+ // For top-level block we'd like to include the name of variable, but we
+ // don't have it at this point.
auto DC = CurrentDecl->getDeclContext();
if (DC->isFileContext())
- MC->mangleGlobalBlock(BD, /*ID*/ nullptr, Out);
- else if (const auto *CD = dyn_cast<CXXConstructorDecl>(DC))
- MC->mangleCtorBlock(CD, /*CT*/ Ctor_Complete, BD, Out);
- else if (const auto *DD = dyn_cast<CXXDestructorDecl>(DC))
- MC->mangleDtorBlock(DD, /*DT*/ Dtor_Complete, BD, Out);
- else
- MC->mangleBlock(DC, BD, Out);
+ return "";
+
+ SmallString<256> Buffer;
+ llvm::raw_svector_ostream Out(Buffer);
+ if (auto *DCBlock = dyn_cast<BlockDecl>(DC))
+ // For nested blocks, propagate up to the parent.
+ Out << ComputeName(IT, DCBlock);
+ else if (auto *DCDecl = dyn_cast<Decl>(DC))
+ Out << ComputeName(IT, DCDecl) << "_block_invoke";
return Out.str();
}
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(CurrentDecl)) {
FT = dyn_cast<FunctionProtoType>(AFT);
if (IT == FuncSig) {
- switch (FT->getCallConv()) {
+ switch (AFT->getCallConv()) {
case CC_C: POut << "__cdecl "; break;
case CC_X86StdCall: POut << "__stdcall "; break;
case CC_X86FastCall: POut << "__fastcall "; break;
case CC_X86ThisCall: POut << "__thiscall "; break;
case CC_X86VectorCall: POut << "__vectorcall "; break;
+ case CC_X86RegCall: POut << "__regcall "; break;
// Only bother printing the conventions that MSVC knows about.
default: break;
}
if (FT->isVariadic()) {
if (FD->getNumParams()) POut << ", ";
POut << "...";
+ } else if ((IT == FuncSig || !Context.getLangOpts().CPlusPlus) &&
+ !Decl->getNumParams()) {
+ POut << "void";
}
}
POut << ")";
if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) {
- const FunctionType *FT = MD->getType()->castAs<FunctionType>();
+ assert(FT && "We must have a written prototype in this case.");
if (FT->isConst())
POut << " const";
if (FT->isVolatile())
Out << Proto;
- Out.flush();
return Name.str().str();
}
if (const CapturedDecl *CD = dyn_cast<CapturedDecl>(CurrentDecl)) {
MD->getSelector().print(Out);
Out << ']';
- Out.flush();
return Name.str().str();
}
if (isa<TranslationUnitDecl>(CurrentDecl) && IT == PrettyFunction) {
const llvm::fltSemantics &FloatingLiteral::getSemantics() const {
switch(FloatingLiteralBits.Semantics) {
case IEEEhalf:
- return llvm::APFloat::IEEEhalf;
+ return llvm::APFloat::IEEEhalf();
case IEEEsingle:
- return llvm::APFloat::IEEEsingle;
+ return llvm::APFloat::IEEEsingle();
case IEEEdouble:
- return llvm::APFloat::IEEEdouble;
+ return llvm::APFloat::IEEEdouble();
case x87DoubleExtended:
- return llvm::APFloat::x87DoubleExtended;
+ return llvm::APFloat::x87DoubleExtended();
case IEEEquad:
- return llvm::APFloat::IEEEquad;
+ return llvm::APFloat::IEEEquad();
case PPCDoubleDouble:
- return llvm::APFloat::PPCDoubleDouble;
+ return llvm::APFloat::PPCDoubleDouble();
}
llvm_unreachable("Unrecognised floating semantics");
}
void FloatingLiteral::setSemantics(const llvm::fltSemantics &Sem) {
- if (&Sem == &llvm::APFloat::IEEEhalf)
+ if (&Sem == &llvm::APFloat::IEEEhalf())
FloatingLiteralBits.Semantics = IEEEhalf;
- else if (&Sem == &llvm::APFloat::IEEEsingle)
+ else if (&Sem == &llvm::APFloat::IEEEsingle())
FloatingLiteralBits.Semantics = IEEEsingle;
- else if (&Sem == &llvm::APFloat::IEEEdouble)
+ else if (&Sem == &llvm::APFloat::IEEEdouble())
FloatingLiteralBits.Semantics = IEEEdouble;
- else if (&Sem == &llvm::APFloat::x87DoubleExtended)
+ else if (&Sem == &llvm::APFloat::x87DoubleExtended())
FloatingLiteralBits.Semantics = x87DoubleExtended;
- else if (&Sem == &llvm::APFloat::IEEEquad)
+ else if (&Sem == &llvm::APFloat::IEEEquad())
FloatingLiteralBits.Semantics = IEEEquad;
- else if (&Sem == &llvm::APFloat::PPCDoubleDouble)
+ else if (&Sem == &llvm::APFloat::PPCDoubleDouble())
FloatingLiteralBits.Semantics = PPCDoubleDouble;
else
llvm_unreachable("Unknown floating semantics");
double FloatingLiteral::getValueAsApproximateDouble() const {
llvm::APFloat V = getValue();
bool ignored;
- V.convert(llvm::APFloat::IEEEdouble, llvm::APFloat::rmNearestTiesToEven,
+ V.convert(llvm::APFloat::IEEEdouble(), llvm::APFloat::rmNearestTiesToEven,
&ignored);
return V.convertToDouble();
}
// Allocate enough space for the StringLiteral plus an array of locations for
// any concatenated string tokens.
- void *Mem = C.Allocate(sizeof(StringLiteral)+
- sizeof(SourceLocation)*(NumStrs-1),
- llvm::alignOf<StringLiteral>());
+ void *Mem =
+ C.Allocate(sizeof(StringLiteral) + sizeof(SourceLocation) * (NumStrs - 1),
+ alignof(StringLiteral));
StringLiteral *SL = new (Mem) StringLiteral(Ty);
// OPTIMIZE: could allocate this appended to the StringLiteral.
StringLiteral *StringLiteral::CreateEmpty(const ASTContext &C,
unsigned NumStrs) {
- void *Mem = C.Allocate(sizeof(StringLiteral)+
- sizeof(SourceLocation)*(NumStrs-1),
- llvm::alignOf<StringLiteral>());
+ void *Mem =
+ C.Allocate(sizeof(StringLiteral) + sizeof(SourceLocation) * (NumStrs - 1),
+ alignof(StringLiteral));
StringLiteral *SL = new (Mem) StringLiteral(QualType());
SL->CharByteWidth = 0;
SL->Length = 0;
// Handle some common non-printable cases to make dumps prettier.
case '\\': OS << "\\\\"; break;
case '"': OS << "\\\""; break;
- case '\n': OS << "\\n"; break;
- case '\t': OS << "\\t"; break;
case '\a': OS << "\\a"; break;
case '\b': OS << "\\b"; break;
+ case '\f': OS << "\\f"; break;
+ case '\n': OS << "\\n"; break;
+ case '\r': OS << "\\r"; break;
+ case '\t': OS << "\\t"; break;
+ case '\v': OS << "\\v"; break;
}
}
OS << '"';
void StringLiteral::setString(const ASTContext &C, StringRef Str,
StringKind Kind, bool IsPascal) {
//FIXME: we assume that the string data comes from a target that uses the same
- // code unit size and endianess for the type of string.
+ // code unit size and endianness for the type of string.
this->Kind = Kind;
this->IsPascal = IsPascal;
break;
}
default:
- assert(false && "unsupported CharByteWidth");
+ llvm_unreachable("unsupported CharByteWidth");
}
}
/// can have escape sequences in them in addition to the usual trigraph and
/// escaped newline business. This routine handles this complexity.
///
-SourceLocation StringLiteral::
-getLocationOfByte(unsigned ByteNo, const SourceManager &SM,
- const LangOptions &Features, const TargetInfo &Target) const {
+/// The *StartToken sets the first token to be searched in this function and
+/// the *StartTokenByteOffset is the byte offset of the first token. Before
+/// returning, it updates the *StartToken to the TokNo of the token being found
+/// and sets *StartTokenByteOffset to the byte offset of the token in the
+/// string.
+/// Using these two parameters can reduce the time complexity from O(n^2) to
+/// O(n) if one wants to get the location of byte for all the tokens in a
+/// string.
+///
+SourceLocation
+StringLiteral::getLocationOfByte(unsigned ByteNo, const SourceManager &SM,
+ const LangOptions &Features,
+ const TargetInfo &Target, unsigned *StartToken,
+ unsigned *StartTokenByteOffset) const {
assert((Kind == StringLiteral::Ascii || Kind == StringLiteral::UTF8) &&
"Only narrow string literals are currently supported");
// Loop over all of the tokens in this string until we find the one that
// contains the byte we're looking for.
unsigned TokNo = 0;
+ unsigned StringOffset = 0;
+ if (StartToken)
+ TokNo = *StartToken;
+ if (StartTokenByteOffset) {
+ StringOffset = *StartTokenByteOffset;
+ ByteNo -= StringOffset;
+ }
while (1) {
assert(TokNo < getNumConcatenated() && "Invalid byte number!");
SourceLocation StrTokLoc = getStrTokenLoc(TokNo);
// the string literal, not the identifier for the macro it is potentially
// expanded through.
SourceLocation StrTokSpellingLoc = SM.getSpellingLoc(StrTokLoc);
-
+
// Re-lex the token to get its length and original spelling.
- std::pair<FileID, unsigned> LocInfo =SM.getDecomposedLoc(StrTokSpellingLoc);
+ std::pair<FileID, unsigned> LocInfo =
+ SM.getDecomposedLoc(StrTokSpellingLoc);
bool Invalid = false;
StringRef Buffer = SM.getBufferData(LocInfo.first, &Invalid);
- if (Invalid)
+ if (Invalid) {
+ if (StartTokenByteOffset != nullptr)
+ *StartTokenByteOffset = StringOffset;
+ if (StartToken != nullptr)
+ *StartToken = TokNo;
return StrTokSpellingLoc;
-
+ }
+
const char *StrData = Buffer.data()+LocInfo.second;
// Create a lexer starting at the beginning of this token.
// If the byte is in this token, return the location of the byte.
if (ByteNo < TokNumBytes ||
(ByteNo == TokNumBytes && TokNo == getNumConcatenated() - 1)) {
- unsigned Offset = SLP.getOffsetOfStringByte(TheTok, ByteNo);
-
+ unsigned Offset = SLP.getOffsetOfStringByte(TheTok, ByteNo);
+
// Now that we know the offset of the token in the spelling, use the
// preprocessor to get the offset in the original source.
+ if (StartTokenByteOffset != nullptr)
+ *StartTokenByteOffset = StringOffset;
+ if (StartToken != nullptr)
+ *StartToken = TokNo;
return Lexer::AdvanceToTokenCharacter(StrTokLoc, Offset, SM, Features);
}
-
+
// Move to the next string token.
+ StringOffset += TokNumBytes;
++TokNo;
ByteNo -= TokNumBytes;
}
/// corresponds to, e.g. "sizeof" or "[pre]++".
StringRef UnaryOperator::getOpcodeStr(Opcode Op) {
switch (Op) {
- case UO_PostInc: return "++";
- case UO_PostDec: return "--";
- case UO_PreInc: return "++";
- case UO_PreDec: return "--";
- case UO_AddrOf: return "&";
- case UO_Deref: return "*";
- case UO_Plus: return "+";
- case UO_Minus: return "-";
- case UO_Not: return "~";
- case UO_LNot: return "!";
- case UO_Real: return "__real";
- case UO_Imag: return "__imag";
- case UO_Extension: return "__extension__";
+#define UNARY_OPERATION(Name, Spelling) case UO_##Name: return Spelling;
+#include "clang/AST/OperationKinds.def"
}
llvm_unreachable("Unknown unary operator");
}
case OO_Minus: return UO_Minus;
case OO_Tilde: return UO_Not;
case OO_Exclaim: return UO_LNot;
+ case OO_Coawait: return UO_Coawait;
}
}
case UO_Minus: return OO_Minus;
case UO_Not: return OO_Tilde;
case UO_LNot: return OO_Exclaim;
+ case UO_Coawait: return OO_Coawait;
default: return OO_None;
}
}
// Postfix Operators.
//===----------------------------------------------------------------------===//
-CallExpr::CallExpr(const ASTContext& C, StmtClass SC, Expr *fn,
- unsigned NumPreArgs, ArrayRef<Expr*> args, QualType t,
+CallExpr::CallExpr(const ASTContext &C, StmtClass SC, Expr *fn,
+ ArrayRef<Expr *> preargs, ArrayRef<Expr *> args, QualType t,
ExprValueKind VK, SourceLocation rparenloc)
- : Expr(SC, t, VK, OK_Ordinary,
- fn->isTypeDependent(),
- fn->isValueDependent(),
- fn->isInstantiationDependent(),
- fn->containsUnexpandedParameterPack()),
- NumArgs(args.size()) {
-
- SubExprs = new (C) Stmt*[args.size()+PREARGS_START+NumPreArgs];
+ : Expr(SC, t, VK, OK_Ordinary, fn->isTypeDependent(),
+ fn->isValueDependent(), fn->isInstantiationDependent(),
+ fn->containsUnexpandedParameterPack()),
+ NumArgs(args.size()) {
+
+ unsigned NumPreArgs = preargs.size();
+ SubExprs = new (C) Stmt *[args.size()+PREARGS_START+NumPreArgs];
SubExprs[FN] = fn;
+ for (unsigned i = 0; i != NumPreArgs; ++i) {
+ updateDependenciesFromArg(preargs[i]);
+ SubExprs[i+PREARGS_START] = preargs[i];
+ }
for (unsigned i = 0; i != args.size(); ++i) {
- if (args[i]->isTypeDependent())
- ExprBits.TypeDependent = true;
- if (args[i]->isValueDependent())
- ExprBits.ValueDependent = true;
- if (args[i]->isInstantiationDependent())
- ExprBits.InstantiationDependent = true;
- if (args[i]->containsUnexpandedParameterPack())
- ExprBits.ContainsUnexpandedParameterPack = true;
-
+ updateDependenciesFromArg(args[i]);
SubExprs[i+PREARGS_START+NumPreArgs] = args[i];
}
RParenLoc = rparenloc;
}
-CallExpr::CallExpr(const ASTContext& C, Expr *fn, ArrayRef<Expr*> args,
- QualType t, ExprValueKind VK, SourceLocation rparenloc)
- : Expr(CallExprClass, t, VK, OK_Ordinary,
- fn->isTypeDependent(),
- fn->isValueDependent(),
- fn->isInstantiationDependent(),
- fn->containsUnexpandedParameterPack()),
- NumArgs(args.size()) {
-
- SubExprs = new (C) Stmt*[args.size()+PREARGS_START];
- SubExprs[FN] = fn;
- for (unsigned i = 0; i != args.size(); ++i) {
- if (args[i]->isTypeDependent())
- ExprBits.TypeDependent = true;
- if (args[i]->isValueDependent())
- ExprBits.ValueDependent = true;
- if (args[i]->isInstantiationDependent())
- ExprBits.InstantiationDependent = true;
- if (args[i]->containsUnexpandedParameterPack())
- ExprBits.ContainsUnexpandedParameterPack = true;
+CallExpr::CallExpr(const ASTContext &C, StmtClass SC, Expr *fn,
+ ArrayRef<Expr *> args, QualType t, ExprValueKind VK,
+ SourceLocation rparenloc)
+ : CallExpr(C, SC, fn, ArrayRef<Expr *>(), args, t, VK, rparenloc) {}
- SubExprs[i+PREARGS_START] = args[i];
- }
-
- CallExprBits.NumPreArgs = 0;
- RParenLoc = rparenloc;
+CallExpr::CallExpr(const ASTContext &C, Expr *fn, ArrayRef<Expr *> args,
+ QualType t, ExprValueKind VK, SourceLocation rparenloc)
+ : CallExpr(C, CallExprClass, fn, ArrayRef<Expr *>(), args, t, VK, rparenloc) {
}
CallExpr::CallExpr(const ASTContext &C, StmtClass SC, EmptyShell Empty)
- : Expr(SC, Empty), SubExprs(nullptr), NumArgs(0) {
- // FIXME: Why do we allocate this?
- SubExprs = new (C) Stmt*[PREARGS_START];
- CallExprBits.NumPreArgs = 0;
-}
+ : CallExpr(C, SC, /*NumPreArgs=*/0, Empty) {}
CallExpr::CallExpr(const ASTContext &C, StmtClass SC, unsigned NumPreArgs,
EmptyShell Empty)
: Expr(SC, Empty), SubExprs(nullptr), NumArgs(0) {
// FIXME: Why do we allocate this?
- SubExprs = new (C) Stmt*[PREARGS_START+NumPreArgs];
+ SubExprs = new (C) Stmt*[PREARGS_START+NumPreArgs]();
CallExprBits.NumPreArgs = NumPreArgs;
}
+void CallExpr::updateDependenciesFromArg(Expr *Arg) {
+ if (Arg->isTypeDependent())
+ ExprBits.TypeDependent = true;
+ if (Arg->isValueDependent())
+ ExprBits.ValueDependent = true;
+ if (Arg->isInstantiationDependent())
+ ExprBits.InstantiationDependent = true;
+ if (Arg->containsUnexpandedParameterPack())
+ ExprBits.ContainsUnexpandedParameterPack = true;
+}
+
+FunctionDecl *CallExpr::getDirectCallee() {
+ return dyn_cast_or_null<FunctionDecl>(getCalleeDecl());
+}
+
Decl *CallExpr::getCalleeDecl() {
- Expr *CEE = getCallee()->IgnoreParenImpCasts();
+ return getCallee()->getReferencedDeclOfCallee();
+}
+
+Decl *Expr::getReferencedDeclOfCallee() {
+ Expr *CEE = IgnoreParenImpCasts();
while (SubstNonTypeTemplateParmExpr *NTTP
= dyn_cast<SubstNonTypeTemplateParmExpr>(CEE)) {
return nullptr;
}
-FunctionDecl *CallExpr::getDirectCallee() {
- return dyn_cast_or_null<FunctionDecl>(getCalleeDecl());
-}
-
/// setNumArgs - This changes the number of arguments present in this call.
/// Any orphaned expressions are deleted by this, and any new operands are set
/// to null.
return FDecl->getBuiltinID();
}
-bool CallExpr::isUnevaluatedBuiltinCall(ASTContext &Ctx) const {
+bool CallExpr::isUnevaluatedBuiltinCall(const ASTContext &Ctx) const {
if (unsigned BI = getBuiltinCallee())
return Ctx.BuiltinInfo.isUnevaluated(BI);
return false;
}
-QualType CallExpr::getCallReturnType() const {
- QualType CalleeType = getCallee()->getType();
- if (const PointerType *FnTypePtr = CalleeType->getAs<PointerType>())
+QualType CallExpr::getCallReturnType(const ASTContext &Ctx) const {
+ const Expr *Callee = getCallee();
+ QualType CalleeType = Callee->getType();
+ if (const auto *FnTypePtr = CalleeType->getAs<PointerType>()) {
CalleeType = FnTypePtr->getPointeeType();
- else if (const BlockPointerType *BPT = CalleeType->getAs<BlockPointerType>())
+ } else if (const auto *BPT = CalleeType->getAs<BlockPointerType>()) {
CalleeType = BPT->getPointeeType();
- else if (CalleeType->isSpecificPlaceholderType(BuiltinType::BoundMember))
+ } else if (CalleeType->isSpecificPlaceholderType(BuiltinType::BoundMember)) {
+ if (isa<CXXPseudoDestructorExpr>(Callee->IgnoreParens()))
+ return Ctx.VoidTy;
+
// This should never be overloaded and so should never return null.
- CalleeType = Expr::findBoundMemberType(getCallee());
-
+ CalleeType = Expr::findBoundMemberType(Callee);
+ }
+
const FunctionType *FnType = CalleeType->castAs<FunctionType>();
return FnType->getReturnType();
}
ArrayRef<OffsetOfNode> comps,
ArrayRef<Expr*> exprs,
SourceLocation RParenLoc) {
- void *Mem = C.Allocate(sizeof(OffsetOfExpr) +
- sizeof(OffsetOfNode) * comps.size() +
- sizeof(Expr*) * exprs.size());
+ void *Mem = C.Allocate(
+ totalSizeToAlloc<OffsetOfNode, Expr *>(comps.size(), exprs.size()));
return new (Mem) OffsetOfExpr(C, type, OperatorLoc, tsi, comps, exprs,
RParenLoc);
OffsetOfExpr *OffsetOfExpr::CreateEmpty(const ASTContext &C,
unsigned numComps, unsigned numExprs) {
- void *Mem = C.Allocate(sizeof(OffsetOfExpr) +
- sizeof(OffsetOfNode) * numComps +
- sizeof(Expr*) * numExprs);
+ void *Mem =
+ C.Allocate(totalSizeToAlloc<OffsetOfNode, Expr *>(numComps, numExprs));
return new (Mem) OffsetOfExpr(numComps, numExprs);
}
}
}
-IdentifierInfo *OffsetOfExpr::OffsetOfNode::getFieldName() const {
+IdentifierInfo *OffsetOfNode::getFieldName() const {
assert(getKind() == Field || getKind() == Identifier);
if (getKind() == Field)
return getField()->getIdentifier();
return reinterpret_cast<IdentifierInfo *> (Data & ~(uintptr_t)Mask);
}
-MemberExpr *MemberExpr::Create(const ASTContext &C, Expr *base, bool isarrow,
- NestedNameSpecifierLoc QualifierLoc,
- SourceLocation TemplateKWLoc,
- ValueDecl *memberdecl,
- DeclAccessPair founddecl,
- DeclarationNameInfo nameinfo,
- const TemplateArgumentListInfo *targs,
- QualType ty,
- ExprValueKind vk,
- ExprObjectKind ok) {
- std::size_t Size = sizeof(MemberExpr);
+UnaryExprOrTypeTraitExpr::UnaryExprOrTypeTraitExpr(
+ UnaryExprOrTypeTrait ExprKind, Expr *E, QualType resultType,
+ SourceLocation op, SourceLocation rp)
+ : Expr(UnaryExprOrTypeTraitExprClass, resultType, VK_RValue, OK_Ordinary,
+ false, // Never type-dependent (C++ [temp.dep.expr]p3).
+ // Value-dependent if the argument is type-dependent.
+ E->isTypeDependent(), E->isInstantiationDependent(),
+ E->containsUnexpandedParameterPack()),
+ OpLoc(op), RParenLoc(rp) {
+ UnaryExprOrTypeTraitExprBits.Kind = ExprKind;
+ UnaryExprOrTypeTraitExprBits.IsType = false;
+ Argument.Ex = E;
+
+ // Check to see if we are in the situation where alignof(decl) should be
+ // dependent because decl's alignment is dependent.
+ if (ExprKind == UETT_AlignOf) {
+ if (!isValueDependent() || !isInstantiationDependent()) {
+ E = E->IgnoreParens();
+
+ const ValueDecl *D = nullptr;
+ if (const auto *DRE = dyn_cast<DeclRefExpr>(E))
+ D = DRE->getDecl();
+ else if (const auto *ME = dyn_cast<MemberExpr>(E))
+ D = ME->getMemberDecl();
+
+ if (D) {
+ for (const auto *I : D->specific_attrs<AlignedAttr>()) {
+ if (I->isAlignmentDependent()) {
+ setValueDependent(true);
+ setInstantiationDependent(true);
+ break;
+ }
+ }
+ }
+ }
+ }
+}
+
+MemberExpr *MemberExpr::Create(
+ const ASTContext &C, Expr *base, bool isarrow, SourceLocation OperatorLoc,
+ NestedNameSpecifierLoc QualifierLoc, SourceLocation TemplateKWLoc,
+ ValueDecl *memberdecl, DeclAccessPair founddecl,
+ DeclarationNameInfo nameinfo, const TemplateArgumentListInfo *targs,
+ QualType ty, ExprValueKind vk, ExprObjectKind ok) {
bool hasQualOrFound = (QualifierLoc ||
founddecl.getDecl() != memberdecl ||
founddecl.getAccess() != memberdecl->getAccess());
- if (hasQualOrFound)
- Size += sizeof(MemberNameQualifier);
- if (targs)
- Size += ASTTemplateKWAndArgsInfo::sizeFor(targs->size());
- else if (TemplateKWLoc.isValid())
- Size += ASTTemplateKWAndArgsInfo::sizeFor(0);
+ bool HasTemplateKWAndArgsInfo = targs || TemplateKWLoc.isValid();
+ std::size_t Size =
+ totalSizeToAlloc<MemberExprNameQualifier, ASTTemplateKWAndArgsInfo,
+ TemplateArgumentLoc>(hasQualOrFound ? 1 : 0,
+ HasTemplateKWAndArgsInfo ? 1 : 0,
+ targs ? targs->size() : 0);
- void *Mem = C.Allocate(Size, llvm::alignOf<MemberExpr>());
- MemberExpr *E = new (Mem) MemberExpr(base, isarrow, memberdecl, nameinfo,
- ty, vk, ok);
+ void *Mem = C.Allocate(Size, alignof(MemberExpr));
+ MemberExpr *E = new (Mem)
+ MemberExpr(base, isarrow, OperatorLoc, memberdecl, nameinfo, ty, vk, ok);
if (hasQualOrFound) {
// FIXME: Wrong. We should be looking at the member declaration we found.
E->HasQualifierOrFoundDecl = true;
- MemberNameQualifier *NQ = E->getMemberQualifier();
+ MemberExprNameQualifier *NQ =
+ E->getTrailingObjects<MemberExprNameQualifier>();
NQ->QualifierLoc = QualifierLoc;
NQ->FoundDecl = founddecl;
}
bool Dependent = false;
bool InstantiationDependent = false;
bool ContainsUnexpandedParameterPack = false;
- E->getTemplateKWAndArgsInfo()->initializeFrom(TemplateKWLoc, *targs,
- Dependent,
- InstantiationDependent,
- ContainsUnexpandedParameterPack);
+ E->getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
+ TemplateKWLoc, *targs, E->getTrailingObjects<TemplateArgumentLoc>(),
+ Dependent, InstantiationDependent, ContainsUnexpandedParameterPack);
if (InstantiationDependent)
E->setInstantiationDependent(true);
} else if (TemplateKWLoc.isValid()) {
- E->getTemplateKWAndArgsInfo()->initializeFrom(TemplateKWLoc);
+ E->getTrailingObjects<ASTTemplateKWAndArgsInfo>()->initializeFrom(
+ TemplateKWLoc);
}
return E;
goto CheckNoBasePath;
case CK_AddressSpaceConversion:
- assert(getType()->isPointerType());
- assert(getSubExpr()->getType()->isPointerType());
+ assert(getType()->isPointerType() || getType()->isBlockPointerType());
+ assert(getSubExpr()->getType()->isPointerType() ||
+ getSubExpr()->getType()->isBlockPointerType());
assert(getType()->getPointeeType().getAddressSpace() !=
getSubExpr()->getType()->getPointeeType().getAddressSpace());
+ LLVM_FALLTHROUGH;
// These should not have an inheritance path.
case CK_Dynamic:
case CK_ToUnion:
case CK_ToVoid:
case CK_VectorSplat:
case CK_IntegralCast:
+ case CK_BooleanToSignedIntegral:
case CK_IntegralToFloating:
case CK_FloatingToIntegral:
case CK_FloatingCast:
case CK_ARCReclaimReturnedObject:
case CK_ARCExtendBlockObject:
case CK_ZeroToOCLEvent:
+ case CK_ZeroToOCLQueue:
+ case CK_IntToOCLSampler:
assert(!getType()->isBooleanType() && "unheralded conversion to bool");
goto CheckNoBasePath;
const char *CastExpr::getCastKindName() const {
switch (getCastKind()) {
- case CK_Dependent:
- return "Dependent";
- case CK_BitCast:
- return "BitCast";
- case CK_LValueBitCast:
- return "LValueBitCast";
- case CK_LValueToRValue:
- return "LValueToRValue";
- case CK_NoOp:
- return "NoOp";
- case CK_BaseToDerived:
- return "BaseToDerived";
- case CK_DerivedToBase:
- return "DerivedToBase";
- case CK_UncheckedDerivedToBase:
- return "UncheckedDerivedToBase";
- case CK_Dynamic:
- return "Dynamic";
- case CK_ToUnion:
- return "ToUnion";
- case CK_ArrayToPointerDecay:
- return "ArrayToPointerDecay";
- case CK_FunctionToPointerDecay:
- return "FunctionToPointerDecay";
- case CK_NullToMemberPointer:
- return "NullToMemberPointer";
- case CK_NullToPointer:
- return "NullToPointer";
- case CK_BaseToDerivedMemberPointer:
- return "BaseToDerivedMemberPointer";
- case CK_DerivedToBaseMemberPointer:
- return "DerivedToBaseMemberPointer";
- case CK_ReinterpretMemberPointer:
- return "ReinterpretMemberPointer";
- case CK_UserDefinedConversion:
- return "UserDefinedConversion";
- case CK_ConstructorConversion:
- return "ConstructorConversion";
- case CK_IntegralToPointer:
- return "IntegralToPointer";
- case CK_PointerToIntegral:
- return "PointerToIntegral";
- case CK_PointerToBoolean:
- return "PointerToBoolean";
- case CK_ToVoid:
- return "ToVoid";
- case CK_VectorSplat:
- return "VectorSplat";
- case CK_IntegralCast:
- return "IntegralCast";
- case CK_IntegralToBoolean:
- return "IntegralToBoolean";
- case CK_IntegralToFloating:
- return "IntegralToFloating";
- case CK_FloatingToIntegral:
- return "FloatingToIntegral";
- case CK_FloatingCast:
- return "FloatingCast";
- case CK_FloatingToBoolean:
- return "FloatingToBoolean";
- case CK_MemberPointerToBoolean:
- return "MemberPointerToBoolean";
- case CK_CPointerToObjCPointerCast:
- return "CPointerToObjCPointerCast";
- case CK_BlockPointerToObjCPointerCast:
- return "BlockPointerToObjCPointerCast";
- case CK_AnyPointerToBlockPointerCast:
- return "AnyPointerToBlockPointerCast";
- case CK_ObjCObjectLValueCast:
- return "ObjCObjectLValueCast";
- case CK_FloatingRealToComplex:
- return "FloatingRealToComplex";
- case CK_FloatingComplexToReal:
- return "FloatingComplexToReal";
- case CK_FloatingComplexToBoolean:
- return "FloatingComplexToBoolean";
- case CK_FloatingComplexCast:
- return "FloatingComplexCast";
- case CK_FloatingComplexToIntegralComplex:
- return "FloatingComplexToIntegralComplex";
- case CK_IntegralRealToComplex:
- return "IntegralRealToComplex";
- case CK_IntegralComplexToReal:
- return "IntegralComplexToReal";
- case CK_IntegralComplexToBoolean:
- return "IntegralComplexToBoolean";
- case CK_IntegralComplexCast:
- return "IntegralComplexCast";
- case CK_IntegralComplexToFloatingComplex:
- return "IntegralComplexToFloatingComplex";
- case CK_ARCConsumeObject:
- return "ARCConsumeObject";
- case CK_ARCProduceObject:
- return "ARCProduceObject";
- case CK_ARCReclaimReturnedObject:
- return "ARCReclaimReturnedObject";
- case CK_ARCExtendBlockObject:
- return "ARCExtendBlockObject";
- case CK_AtomicToNonAtomic:
- return "AtomicToNonAtomic";
- case CK_NonAtomicToAtomic:
- return "NonAtomicToAtomic";
- case CK_CopyAndAutoreleaseBlockObject:
- return "CopyAndAutoreleaseBlockObject";
- case CK_BuiltinFnToFnPtr:
- return "BuiltinFnToFnPtr";
- case CK_ZeroToOCLEvent:
- return "ZeroToOCLEvent";
- case CK_AddressSpaceConversion:
- return "AddressSpaceConversion";
+#define CAST_OPERATION(Name) case CK_##Name: return #Name;
+#include "clang/AST/OperationKinds.def"
}
-
llvm_unreachable("Unhandled cast kind!");
}
+namespace {
+ Expr *skipImplicitTemporary(Expr *expr) {
+ // Skip through reference binding to temporary.
+ if (MaterializeTemporaryExpr *Materialize
+ = dyn_cast<MaterializeTemporaryExpr>(expr))
+ expr = Materialize->GetTemporaryExpr();
+
+ // Skip any temporary bindings; they're implicit.
+ if (CXXBindTemporaryExpr *Binder = dyn_cast<CXXBindTemporaryExpr>(expr))
+ expr = Binder->getSubExpr();
+
+ return expr;
+ }
+}
+
Expr *CastExpr::getSubExprAsWritten() {
Expr *SubExpr = nullptr;
CastExpr *E = this;
do {
- SubExpr = E->getSubExpr();
+ SubExpr = skipImplicitTemporary(E->getSubExpr());
- // Skip through reference binding to temporary.
- if (MaterializeTemporaryExpr *Materialize
- = dyn_cast<MaterializeTemporaryExpr>(SubExpr))
- SubExpr = Materialize->GetTemporaryExpr();
-
- // Skip any temporary bindings; they're implicit.
- if (CXXBindTemporaryExpr *Binder = dyn_cast<CXXBindTemporaryExpr>(SubExpr))
- SubExpr = Binder->getSubExpr();
-
// Conversions by constructor and conversion functions have a
// subexpression describing the call; strip it off.
if (E->getCastKind() == CK_ConstructorConversion)
- SubExpr = cast<CXXConstructExpr>(SubExpr)->getArg(0);
- else if (E->getCastKind() == CK_UserDefinedConversion)
- SubExpr = cast<CXXMemberCallExpr>(SubExpr)->getImplicitObjectArgument();
+ SubExpr =
+ skipImplicitTemporary(cast<CXXConstructExpr>(SubExpr)->getArg(0));
+ else if (E->getCastKind() == CK_UserDefinedConversion) {
+ assert((isa<CXXMemberCallExpr>(SubExpr) ||
+ isa<BlockExpr>(SubExpr)) &&
+ "Unexpected SubExpr for CK_UserDefinedConversion.");
+ if (isa<CXXMemberCallExpr>(SubExpr))
+ SubExpr = cast<CXXMemberCallExpr>(SubExpr)->getImplicitObjectArgument();
+ }
// If the subexpression we're left with is an implicit cast, look
// through that, too.
CXXBaseSpecifier **CastExpr::path_buffer() {
switch (getStmtClass()) {
#define ABSTRACT_STMT(x)
-#define CASTEXPR(Type, Base) \
- case Stmt::Type##Class: \
- return reinterpret_cast<CXXBaseSpecifier**>(static_cast<Type*>(this)+1);
+#define CASTEXPR(Type, Base) \
+ case Stmt::Type##Class: \
+ return static_cast<Type *>(this)->getTrailingObjects<CXXBaseSpecifier *>();
#define STMT(Type, Base)
#include "clang/AST/StmtNodes.inc"
default:
}
}
-void CastExpr::setCastPath(const CXXCastPath &Path) {
- assert(Path.size() == path_size());
- memcpy(path_buffer(), Path.data(), Path.size() * sizeof(CXXBaseSpecifier*));
-}
-
ImplicitCastExpr *ImplicitCastExpr::Create(const ASTContext &C, QualType T,
CastKind Kind, Expr *Operand,
const CXXCastPath *BasePath,
ExprValueKind VK) {
unsigned PathSize = (BasePath ? BasePath->size() : 0);
- void *Buffer =
- C.Allocate(sizeof(ImplicitCastExpr) + PathSize * sizeof(CXXBaseSpecifier*));
+ void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
ImplicitCastExpr *E =
new (Buffer) ImplicitCastExpr(T, Kind, Operand, PathSize, VK);
- if (PathSize) E->setCastPath(*BasePath);
+ if (PathSize)
+ std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
+ E->getTrailingObjects<CXXBaseSpecifier *>());
return E;
}
ImplicitCastExpr *ImplicitCastExpr::CreateEmpty(const ASTContext &C,
unsigned PathSize) {
- void *Buffer =
- C.Allocate(sizeof(ImplicitCastExpr) + PathSize * sizeof(CXXBaseSpecifier*));
+ void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
return new (Buffer) ImplicitCastExpr(EmptyShell(), PathSize);
}
TypeSourceInfo *WrittenTy,
SourceLocation L, SourceLocation R) {
unsigned PathSize = (BasePath ? BasePath->size() : 0);
- void *Buffer =
- C.Allocate(sizeof(CStyleCastExpr) + PathSize * sizeof(CXXBaseSpecifier*));
+ void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
CStyleCastExpr *E =
new (Buffer) CStyleCastExpr(T, VK, K, Op, PathSize, WrittenTy, L, R);
- if (PathSize) E->setCastPath(*BasePath);
+ if (PathSize)
+ std::uninitialized_copy_n(BasePath->data(), BasePath->size(),
+ E->getTrailingObjects<CXXBaseSpecifier *>());
return E;
}
CStyleCastExpr *CStyleCastExpr::CreateEmpty(const ASTContext &C,
unsigned PathSize) {
- void *Buffer =
- C.Allocate(sizeof(CStyleCastExpr) + PathSize * sizeof(CXXBaseSpecifier*));
+ void *Buffer = C.Allocate(totalSizeToAlloc<CXXBaseSpecifier *>(PathSize));
return new (Buffer) CStyleCastExpr(EmptyShell(), PathSize);
}
/// corresponds to, e.g. "<<=".
StringRef BinaryOperator::getOpcodeStr(Opcode Op) {
switch (Op) {
- case BO_PtrMemD: return ".*";
- case BO_PtrMemI: return "->*";
- case BO_Mul: return "*";
- case BO_Div: return "/";
- case BO_Rem: return "%";
- case BO_Add: return "+";
- case BO_Sub: return "-";
- case BO_Shl: return "<<";
- case BO_Shr: return ">>";
- case BO_LT: return "<";
- case BO_GT: return ">";
- case BO_LE: return "<=";
- case BO_GE: return ">=";
- case BO_EQ: return "==";
- case BO_NE: return "!=";
- case BO_And: return "&";
- case BO_Xor: return "^";
- case BO_Or: return "|";
- case BO_LAnd: return "&&";
- case BO_LOr: return "||";
- case BO_Assign: return "=";
- case BO_MulAssign: return "*=";
- case BO_DivAssign: return "/=";
- case BO_RemAssign: return "%=";
- case BO_AddAssign: return "+=";
- case BO_SubAssign: return "-=";
- case BO_ShlAssign: return "<<=";
- case BO_ShrAssign: return ">>=";
- case BO_AndAssign: return "&=";
- case BO_XorAssign: return "^=";
- case BO_OrAssign: return "|=";
- case BO_Comma: return ",";
+#define BINARY_OPERATION(Name, Spelling) case BO_##Name: return Spelling;
+#include "clang/AST/OperationKinds.def"
}
-
llvm_unreachable("Invalid OpCode!");
}
return isa<StringLiteral>(Init) || isa<ObjCEncodeExpr>(Init);
}
+bool InitListExpr::isTransparent() const {
+ assert(isSemanticForm() && "syntactic form never semantically transparent");
+
+ // A glvalue InitListExpr is always just sugar.
+ if (isGLValue()) {
+ assert(getNumInits() == 1 && "multiple inits in glvalue init list");
+ return true;
+ }
+
+ // Otherwise, we're sugar if and only if we have exactly one initializer that
+ // is of the same type.
+ if (getNumInits() != 1 || !getInit(0))
+ return false;
+
+ // Don't confuse aggregate initialization of a struct X { X &x; }; with a
+ // transparent struct copy.
+ if (!getInit(0)->isRValue() && getType()->isRecordType())
+ return false;
+
+ return getType().getCanonicalType() ==
+ getInit(0)->getType().getCanonicalType();
+}
+
SourceLocation InitListExpr::getLocStart() const {
if (InitListExpr *SyntacticForm = getSyntacticForm())
return SyntacticForm->getLocStart();
case UO_LNot:
case UO_Deref:
break;
+ case UO_Coawait:
+ // This is just the 'operator co_await' call inside the guts of a
+ // dependent co_await call.
case UO_PostInc:
case UO_PostDec:
case UO_PreInc:
case OO_Greater:
case OO_GreaterEqual:
case OO_LessEqual:
- if (Op->getCallReturnType()->isReferenceType() ||
- Op->getCallReturnType()->isVoidType())
+ if (Op->getCallReturnType(Ctx)->isReferenceType() ||
+ Op->getCallReturnType(Ctx)->isVoidType())
break;
WarnE = this;
Loc = Op->getOperatorLoc();
}
// Fallthrough for generic call handling.
+ LLVM_FALLTHROUGH;
}
case CallExprClass:
case CXXMemberCallExprClass:
// If this is a direct call, get the callee.
const CallExpr *CE = cast<CallExpr>(this);
if (const Decl *FD = CE->getCalleeDecl()) {
+ const FunctionDecl *Func = dyn_cast<FunctionDecl>(FD);
+ bool HasWarnUnusedResultAttr = Func ? Func->hasUnusedResultAttr()
+ : FD->hasAttr<WarnUnusedResultAttr>();
+
// If the callee has attribute pure, const, or warn_unused_result, warn
// about it. void foo() { strlen("bar"); } should warn.
//
// Note: If new cases are added here, DiagnoseUnusedExprResult should be
// updated to match for QoI.
- if (FD->hasAttr<WarnUnusedResultAttr>() ||
+ if (HasWarnUnusedResultAttr ||
FD->hasAttr<PureAttr>() || FD->hasAttr<ConstAttr>()) {
WarnE = this;
Loc = CE->getCallee()->getLocStart();
}
if (const ObjCMethodDecl *MD = ME->getMethodDecl())
- if (MD->hasAttr<WarnUnusedResultAttr>() ||
- (MD->isPropertyAccessor() && !MD->getReturnType()->isVoidType() &&
- !ME->getReceiverType()->isObjCIdType())) {
+ if (MD->hasAttr<WarnUnusedResultAttr>()) {
WarnE = this;
Loc = getExprLoc();
return true;
// effects (e.g. a placement new with an uninitialized POD).
case CXXDeleteExprClass:
return false;
+ case MaterializeTemporaryExprClass:
+ return cast<MaterializeTemporaryExpr>(this)->GetTemporaryExpr()
+ ->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx);
case CXXBindTemporaryExprClass:
- return (cast<CXXBindTemporaryExpr>(this)
- ->getSubExpr()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx));
+ return cast<CXXBindTemporaryExpr>(this)->getSubExpr()
+ ->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx);
case ExprWithCleanupsClass:
- return (cast<ExprWithCleanups>(this)
- ->getSubExpr()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx));
+ return cast<ExprWithCleanups>(this)->getSubExpr()
+ ->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx);
}
}
return type;
}
- assert(isa<UnresolvedMemberExpr>(expr));
+ assert(isa<UnresolvedMemberExpr>(expr) || isa<CXXPseudoDestructorExpr>(expr));
return QualType();
}
const Expr *Exp = cast<CompoundLiteralExpr>(this)->getInitializer();
return Exp->isConstantInitializer(Ctx, false, Culprit);
}
+ case DesignatedInitUpdateExprClass: {
+ const DesignatedInitUpdateExpr *DIUE = cast<DesignatedInitUpdateExpr>(this);
+ return DIUE->getBase()->isConstantInitializer(Ctx, false, Culprit) &&
+ DIUE->getUpdater()->isConstantInitializer(Ctx, false, Culprit);
+ }
case InitListExprClass: {
const InitListExpr *ILE = cast<InitListExpr>(this);
if (ILE->getType()->isArrayType()) {
break;
}
case ImplicitValueInitExprClass:
+ case NoInitExprClass:
return true;
case ParenExprClass:
return cast<ParenExpr>(this)->getSubExpr()
CE->getCastKind() == CK_ToUnion ||
CE->getCastKind() == CK_ConstructorConversion ||
CE->getCastKind() == CK_NonAtomicToAtomic ||
- CE->getCastKind() == CK_AtomicToNonAtomic)
+ CE->getCastKind() == CK_AtomicToNonAtomic ||
+ CE->getCastKind() == CK_IntToOCLSampler)
return CE->getSubExpr()->isConstantInitializer(Ctx, false, Culprit);
break;
return cast<CXXDefaultInitExpr>(this)->getExpr()
->isConstantInitializer(Ctx, false, Culprit);
}
- if (isEvaluatable(Ctx))
+ // Allow certain forms of UB in constant initializers: signed integer
+ // overflow and floating-point division by zero. We'll give a warning on
+ // these, but they're common enough that we have to accept them.
+ if (isEvaluatable(Ctx, SE_AllowUndefinedBehavior))
return true;
if (Culprit)
*Culprit = this;
return false;
}
-bool Expr::HasSideEffects(const ASTContext &Ctx) const {
+namespace {
+ /// \brief Look for any side effects within a Stmt.
+ class SideEffectFinder : public ConstEvaluatedExprVisitor<SideEffectFinder> {
+ typedef ConstEvaluatedExprVisitor<SideEffectFinder> Inherited;
+ const bool IncludePossibleEffects;
+ bool HasSideEffects;
+
+ public:
+ explicit SideEffectFinder(const ASTContext &Context, bool IncludePossible)
+ : Inherited(Context),
+ IncludePossibleEffects(IncludePossible), HasSideEffects(false) { }
+
+ bool hasSideEffects() const { return HasSideEffects; }
+
+ void VisitExpr(const Expr *E) {
+ if (!HasSideEffects &&
+ E->HasSideEffects(Context, IncludePossibleEffects))
+ HasSideEffects = true;
+ }
+ };
+}
+
+bool Expr::HasSideEffects(const ASTContext &Ctx,
+ bool IncludePossibleEffects) const {
+ // In circumstances where we care about definite side effects instead of
+ // potential side effects, we want to ignore expressions that are part of a
+ // macro expansion as a potential side effect.
+ if (!IncludePossibleEffects && getExprLoc().isMacroID())
+ return false;
+
if (isInstantiationDependent())
- return true;
+ return IncludePossibleEffects;
switch (getStmtClass()) {
case NoStmtClass:
case UnaryExprOrTypeTraitExprClass:
case AddrLabelExprClass:
case GNUNullExprClass:
+ case ArrayInitIndexExprClass:
+ case NoInitExprClass:
case CXXBoolLiteralExprClass:
case CXXNullPtrLiteralExprClass:
case CXXThisExprClass:
case ObjCStringLiteralClass:
case ObjCEncodeExprClass:
case ObjCBoolLiteralExprClass:
+ case ObjCAvailabilityCheckExprClass:
case CXXUuidofExprClass:
case OpaqueValueExprClass:
// These never have a side-effect.
return false;
case CallExprClass:
+ case CXXOperatorCallExprClass:
+ case CXXMemberCallExprClass:
+ case CUDAKernelCallExprClass:
+ case UserDefinedLiteralClass: {
+ // We don't know a call definitely has side effects, except for calls
+ // to pure/const functions that definitely don't.
+ // If the call itself is considered side-effect free, check the operands.
+ const Decl *FD = cast<CallExpr>(this)->getCalleeDecl();
+ bool IsPure = FD && (FD->hasAttr<ConstAttr>() || FD->hasAttr<PureAttr>());
+ if (IsPure || !IncludePossibleEffects)
+ break;
+ return true;
+ }
+
+ case BlockExprClass:
+ case CXXBindTemporaryExprClass:
+ if (!IncludePossibleEffects)
+ break;
+ return true;
+
case MSPropertyRefExprClass:
+ case MSPropertySubscriptExprClass:
case CompoundAssignOperatorClass:
case VAArgExprClass:
case AtomicExprClass:
- case StmtExprClass:
- case CXXOperatorCallExprClass:
- case CXXMemberCallExprClass:
- case UserDefinedLiteralClass:
case CXXThrowExprClass:
case CXXNewExprClass:
case CXXDeleteExprClass:
- case ExprWithCleanupsClass:
- case CXXBindTemporaryExprClass:
- case BlockExprClass:
- case CUDAKernelCallExprClass:
+ case CoawaitExprClass:
+ case DependentCoawaitExprClass:
+ case CoyieldExprClass:
// These always have a side-effect.
return true;
+ case StmtExprClass: {
+ // StmtExprs have a side-effect if any substatement does.
+ SideEffectFinder Finder(Ctx, IncludePossibleEffects);
+ Finder.Visit(cast<StmtExpr>(this)->getSubStmt());
+ return Finder.hasSideEffects();
+ }
+
+ case ExprWithCleanupsClass:
+ if (IncludePossibleEffects)
+ if (cast<ExprWithCleanups>(this)->cleanupsHaveSideEffects())
+ return true;
+ break;
+
case ParenExprClass:
case ArraySubscriptExprClass:
+ case OMPArraySectionExprClass:
case MemberExprClass:
case ConditionalOperatorClass:
case BinaryConditionalOperatorClass:
case CompoundLiteralExprClass:
case ExtVectorElementExprClass:
case DesignatedInitExprClass:
+ case DesignatedInitUpdateExprClass:
+ case ArrayInitLoopExprClass:
case ParenListExprClass:
case CXXPseudoDestructorExprClass:
case CXXStdInitializerListExprClass:
case InitListExprClass:
// FIXME: The children for an InitListExpr doesn't include the array filler.
if (const Expr *E = cast<InitListExpr>(this)->getArrayFiller())
- if (E->HasSideEffects(Ctx))
+ if (E->HasSideEffects(Ctx, IncludePossibleEffects))
return true;
break;
case GenericSelectionExprClass:
return cast<GenericSelectionExpr>(this)->getResultExpr()->
- HasSideEffects(Ctx);
+ HasSideEffects(Ctx, IncludePossibleEffects);
case ChooseExprClass:
- return cast<ChooseExpr>(this)->getChosenSubExpr()->HasSideEffects(Ctx);
+ return cast<ChooseExpr>(this)->getChosenSubExpr()->HasSideEffects(
+ Ctx, IncludePossibleEffects);
case CXXDefaultArgExprClass:
- return cast<CXXDefaultArgExpr>(this)->getExpr()->HasSideEffects(Ctx);
+ return cast<CXXDefaultArgExpr>(this)->getExpr()->HasSideEffects(
+ Ctx, IncludePossibleEffects);
- case CXXDefaultInitExprClass:
- if (const Expr *E = cast<CXXDefaultInitExpr>(this)->getExpr())
- return E->HasSideEffects(Ctx);
+ case CXXDefaultInitExprClass: {
+ const FieldDecl *FD = cast<CXXDefaultInitExpr>(this)->getField();
+ if (const Expr *E = FD->getInClassInitializer())
+ return E->HasSideEffects(Ctx, IncludePossibleEffects);
// If we've not yet parsed the initializer, assume it has side-effects.
return true;
+ }
case CXXDynamicCastExprClass: {
// A dynamic_cast expression has side-effects if it can throw.
case CXXReinterpretCastExprClass:
case CXXConstCastExprClass:
case CXXFunctionalCastExprClass: {
+ // While volatile reads are side-effecting in both C and C++, we treat them
+ // as having possible (not definite) side-effects. This allows idiomatic
+ // code to behave without warning, such as sizeof(*v) for a volatile-
+ // qualified pointer.
+ if (!IncludePossibleEffects)
+ break;
+
const CastExpr *CE = cast<CastExpr>(this);
if (CE->getCastKind() == CK_LValueToRValue &&
CE->getSubExpr()->getType().isVolatileQualified())
case CXXConstructExprClass:
case CXXTemporaryObjectExprClass: {
const CXXConstructExpr *CE = cast<CXXConstructExpr>(this);
- if (!CE->getConstructor()->isTrivial())
+ if (!CE->getConstructor()->isTrivial() && IncludePossibleEffects)
return true;
// A trivial constructor does not add any side-effects of its own. Just look
// at its arguments.
break;
}
+ case CXXInheritedCtorInitExprClass: {
+ const auto *ICIE = cast<CXXInheritedCtorInitExpr>(this);
+ if (!ICIE->getConstructor()->isTrivial() && IncludePossibleEffects)
+ return true;
+ break;
+ }
+
case LambdaExprClass: {
const LambdaExpr *LE = cast<LambdaExpr>(this);
for (LambdaExpr::capture_iterator I = LE->capture_begin(),
const Expr *Subexpr = *I;
if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(Subexpr))
Subexpr = OVE->getSourceExpr();
- if (Subexpr->HasSideEffects(Ctx))
+ if (Subexpr->HasSideEffects(Ctx, IncludePossibleEffects))
return true;
}
return false;
case ObjCBoxedExprClass:
case ObjCArrayLiteralClass:
case ObjCDictionaryLiteralClass:
- case ObjCMessageExprClass:
case ObjCSelectorExprClass:
case ObjCProtocolExprClass:
- case ObjCPropertyRefExprClass:
case ObjCIsaExprClass:
case ObjCIndirectCopyRestoreExprClass:
case ObjCSubscriptRefExprClass:
case ObjCBridgedCastExprClass:
- // FIXME: Classify these cases better.
- return true;
+ case ObjCMessageExprClass:
+ case ObjCPropertyRefExprClass:
+ // FIXME: Classify these cases better.
+ if (IncludePossibleEffects)
+ return true;
+ break;
}
// Recurse to children.
- for (const_child_range SubStmts = children(); SubStmts; ++SubStmts)
- if (const Stmt *S = *SubStmts)
- if (cast<Expr>(S)->HasSideEffects(Ctx))
- return true;
+ for (const Stmt *SubStmt : children())
+ if (SubStmt &&
+ cast<Expr>(SubStmt)->HasSideEffects(Ctx, IncludePossibleEffects))
+ return true;
return false;
}
namespace {
/// \brief Look for a call to a non-trivial function within an expression.
- class NonTrivialCallFinder : public EvaluatedExprVisitor<NonTrivialCallFinder>
+ class NonTrivialCallFinder : public ConstEvaluatedExprVisitor<NonTrivialCallFinder>
{
- typedef EvaluatedExprVisitor<NonTrivialCallFinder> Inherited;
-
+ typedef ConstEvaluatedExprVisitor<NonTrivialCallFinder> Inherited;
+
bool NonTrivial;
public:
- explicit NonTrivialCallFinder(ASTContext &Context)
+ explicit NonTrivialCallFinder(const ASTContext &Context)
: Inherited(Context), NonTrivial(false) { }
bool hasNonTrivialCall() const { return NonTrivial; }
-
- void VisitCallExpr(CallExpr *E) {
- if (CXXMethodDecl *Method
- = dyn_cast_or_null<CXXMethodDecl>(E->getCalleeDecl())) {
+
+ void VisitCallExpr(const CallExpr *E) {
+ if (const CXXMethodDecl *Method
+ = dyn_cast_or_null<const CXXMethodDecl>(E->getCalleeDecl())) {
if (Method->isTrivial()) {
// Recurse to children of the call.
Inherited::VisitStmt(E);
NonTrivial = true;
}
-
- void VisitCXXConstructExpr(CXXConstructExpr *E) {
+
+ void VisitCXXConstructExpr(const CXXConstructExpr *E) {
if (E->getConstructor()->isTrivial()) {
// Recurse to children of the call.
Inherited::VisitStmt(E);
NonTrivial = true;
}
-
- void VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
+
+ void VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *E) {
if (E->getTemporary()->getDestructor()->isTrivial()) {
Inherited::VisitStmt(E);
return;
};
}
-bool Expr::hasNonTrivialCall(ASTContext &Ctx) {
+bool Expr::hasNonTrivialCall(const ASTContext &Ctx) const {
NonTrivialCallFinder Finder(Ctx);
Finder.Visit(this);
return Finder.hasNonTrivialCall();
// Check that it is a cast to void*.
if (const PointerType *PT = CE->getType()->getAs<PointerType>()) {
QualType Pointee = PT->getPointeeType();
- if (!Pointee.hasQualifiers() &&
- Pointee->isVoidType() && // to void*
- CE->getSubExpr()->getType()->isIntegerType()) // from int.
+ Qualifiers Q = Pointee.getQualifiers();
+ // In OpenCL v2.0 generic address space acts as a placeholder
+ // and should be ignored.
+ bool IsASValid = true;
+ if (Ctx.getLangOpts().OpenCLVersion >= 200) {
+ if (Pointee.getAddressSpace() == LangAS::opencl_generic)
+ Q.removeAddressSpace();
+ else
+ IsASValid = false;
+ }
+
+ if (IsASValid && !Q.hasQualifiers() &&
+ Pointee->isVoidType() && // to void*
+ CE->getSubExpr()->getType()->isIntegerType()) // from int.
return CE->getSubExpr()->isNullPointerConstant(Ctx, NPC);
}
}
if (Ivar->isBitField())
return Ivar;
- if (DeclRefExpr *DeclRef = dyn_cast<DeclRefExpr>(E))
+ if (DeclRefExpr *DeclRef = dyn_cast<DeclRefExpr>(E)) {
if (FieldDecl *Field = dyn_cast<FieldDecl>(DeclRef->getDecl()))
if (Field->isBitField())
return Field;
+ if (BindingDecl *BD = dyn_cast<BindingDecl>(DeclRef->getDecl()))
+ if (Expr *E = BD->getBinding())
+ return E->getSourceBitField();
+ }
+
if (BinaryOperator *BinOp = dyn_cast<BinaryOperator>(E)) {
if (BinOp->isAssignmentOp() && BinOp->getLHS())
return BinOp->getLHS()->getSourceBitField();
}
bool Expr::refersToVectorElement() const {
+ // FIXME: Why do we not just look at the ObjectKind here?
const Expr *E = this->IgnoreParens();
while (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) {
if (isa<ExtVectorElementExpr>(E))
return true;
+ if (auto *DRE = dyn_cast<DeclRefExpr>(E))
+ if (auto *BD = dyn_cast<BindingDecl>(DRE->getDecl()))
+ if (auto *E = BD->getBinding())
+ return E->refersToVectorElement();
+
+ return false;
+}
+
+bool Expr::refersToGlobalRegisterVar() const {
+ const Expr *E = this->IgnoreParenImpCasts();
+
+ if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E))
+ if (const auto *VD = dyn_cast<VarDecl>(DRE->getDecl()))
+ if (VD->getStorageClass() == SC_Register &&
+ VD->hasAttr<AsmLabelAttr>() && !VD->isLocalVarDecl())
+ return true;
+
return false;
}
/// getEncodedElementAccess - We encode the fields as a llvm ConstantArray.
void ExtVectorElementExpr::getEncodedElementAccess(
- SmallVectorImpl<unsigned> &Elts) const {
+ SmallVectorImpl<uint32_t> &Elts) const {
StringRef Comp = Accessor->getName();
- if (Comp[0] == 's' || Comp[0] == 'S')
+ bool isNumericAccessor = false;
+ if (Comp[0] == 's' || Comp[0] == 'S') {
Comp = Comp.substr(1);
+ isNumericAccessor = true;
+ }
bool isHi = Comp == "hi";
bool isLo = Comp == "lo";
else if (isOdd)
Index = 2 * i + 1;
else
- Index = ExtVectorType::getAccessorIdx(Comp[i]);
+ Index = ExtVectorType::getAccessorIdx(Comp[i], isNumericAccessor);
Elts.push_back(Index);
}
}
-ObjCMessageExpr::ObjCMessageExpr(QualType T,
- ExprValueKind VK,
- SourceLocation LBracLoc,
- SourceLocation SuperLoc,
- bool IsInstanceSuper,
- QualType SuperType,
- Selector Sel,
- ArrayRef<SourceLocation> SelLocs,
- SelectorLocationsKind SelLocsK,
- ObjCMethodDecl *Method,
- ArrayRef<Expr *> Args,
- SourceLocation RBracLoc,
- bool isImplicit)
- : Expr(ObjCMessageExprClass, T, VK, OK_Ordinary,
- /*TypeDependent=*/false, /*ValueDependent=*/false,
- /*InstantiationDependent=*/false,
- /*ContainsUnexpandedParameterPack=*/false),
- SelectorOrMethod(reinterpret_cast<uintptr_t>(Method? Method
- : Sel.getAsOpaquePtr())),
- Kind(IsInstanceSuper? SuperInstance : SuperClass),
- HasMethod(Method != nullptr), IsDelegateInitCall(false),
- IsImplicit(isImplicit), SuperLoc(SuperLoc), LBracLoc(LBracLoc),
- RBracLoc(RBracLoc)
-{
- initArgsAndSelLocs(Args, SelLocs, SelLocsK);
- setReceiverPointer(SuperType.getAsOpaquePtr());
-}
-
-ObjCMessageExpr::ObjCMessageExpr(QualType T,
- ExprValueKind VK,
- SourceLocation LBracLoc,
- TypeSourceInfo *Receiver,
- Selector Sel,
- ArrayRef<SourceLocation> SelLocs,
- SelectorLocationsKind SelLocsK,
- ObjCMethodDecl *Method,
- ArrayRef<Expr *> Args,
- SourceLocation RBracLoc,
- bool isImplicit)
- : Expr(ObjCMessageExprClass, T, VK, OK_Ordinary, T->isDependentType(),
- T->isDependentType(), T->isInstantiationDependentType(),
- T->containsUnexpandedParameterPack()),
- SelectorOrMethod(reinterpret_cast<uintptr_t>(Method? Method
- : Sel.getAsOpaquePtr())),
- Kind(Class),
- HasMethod(Method != nullptr), IsDelegateInitCall(false),
- IsImplicit(isImplicit), LBracLoc(LBracLoc), RBracLoc(RBracLoc)
-{
- initArgsAndSelLocs(Args, SelLocs, SelLocsK);
- setReceiverPointer(Receiver);
-}
-
-ObjCMessageExpr::ObjCMessageExpr(QualType T,
- ExprValueKind VK,
- SourceLocation LBracLoc,
- Expr *Receiver,
- Selector Sel,
- ArrayRef<SourceLocation> SelLocs,
- SelectorLocationsKind SelLocsK,
- ObjCMethodDecl *Method,
- ArrayRef<Expr *> Args,
- SourceLocation RBracLoc,
- bool isImplicit)
- : Expr(ObjCMessageExprClass, T, VK, OK_Ordinary, Receiver->isTypeDependent(),
- Receiver->isTypeDependent(),
- Receiver->isInstantiationDependent(),
- Receiver->containsUnexpandedParameterPack()),
- SelectorOrMethod(reinterpret_cast<uintptr_t>(Method? Method
- : Sel.getAsOpaquePtr())),
- Kind(Instance),
- HasMethod(Method != nullptr), IsDelegateInitCall(false),
- IsImplicit(isImplicit), LBracLoc(LBracLoc), RBracLoc(RBracLoc)
-{
- initArgsAndSelLocs(Args, SelLocs, SelLocsK);
- setReceiverPointer(Receiver);
-}
-
-void ObjCMessageExpr::initArgsAndSelLocs(ArrayRef<Expr *> Args,
- ArrayRef<SourceLocation> SelLocs,
- SelectorLocationsKind SelLocsK) {
- setNumArgs(Args.size());
- Expr **MyArgs = getArgs();
- for (unsigned I = 0; I != Args.size(); ++I) {
- if (Args[I]->isTypeDependent())
- ExprBits.TypeDependent = true;
- if (Args[I]->isValueDependent())
- ExprBits.ValueDependent = true;
- if (Args[I]->isInstantiationDependent())
- ExprBits.InstantiationDependent = true;
- if (Args[I]->containsUnexpandedParameterPack())
- ExprBits.ContainsUnexpandedParameterPack = true;
-
- MyArgs[I] = Args[I];
- }
-
- SelLocsKind = SelLocsK;
- if (!isImplicit()) {
- if (SelLocsK == SelLoc_NonStandard)
- std::copy(SelLocs.begin(), SelLocs.end(), getStoredSelLocs());
- }
-}
-
-ObjCMessageExpr *ObjCMessageExpr::Create(const ASTContext &Context, QualType T,
- ExprValueKind VK,
- SourceLocation LBracLoc,
- SourceLocation SuperLoc,
- bool IsInstanceSuper,
- QualType SuperType,
- Selector Sel,
- ArrayRef<SourceLocation> SelLocs,
- ObjCMethodDecl *Method,
- ArrayRef<Expr *> Args,
- SourceLocation RBracLoc,
- bool isImplicit) {
- assert((!SelLocs.empty() || isImplicit) &&
- "No selector locs for non-implicit message");
- ObjCMessageExpr *Mem;
- SelectorLocationsKind SelLocsK = SelectorLocationsKind();
- if (isImplicit)
- Mem = alloc(Context, Args.size(), 0);
- else
- Mem = alloc(Context, Args, RBracLoc, SelLocs, Sel, SelLocsK);
- return new (Mem) ObjCMessageExpr(T, VK, LBracLoc, SuperLoc, IsInstanceSuper,
- SuperType, Sel, SelLocs, SelLocsK,
- Method, Args, RBracLoc, isImplicit);
-}
-
-ObjCMessageExpr *ObjCMessageExpr::Create(const ASTContext &Context, QualType T,
- ExprValueKind VK,
- SourceLocation LBracLoc,
- TypeSourceInfo *Receiver,
- Selector Sel,
- ArrayRef<SourceLocation> SelLocs,
- ObjCMethodDecl *Method,
- ArrayRef<Expr *> Args,
- SourceLocation RBracLoc,
- bool isImplicit) {
- assert((!SelLocs.empty() || isImplicit) &&
- "No selector locs for non-implicit message");
- ObjCMessageExpr *Mem;
- SelectorLocationsKind SelLocsK = SelectorLocationsKind();
- if (isImplicit)
- Mem = alloc(Context, Args.size(), 0);
- else
- Mem = alloc(Context, Args, RBracLoc, SelLocs, Sel, SelLocsK);
- return new (Mem) ObjCMessageExpr(T, VK, LBracLoc, Receiver, Sel,
- SelLocs, SelLocsK, Method, Args, RBracLoc,
- isImplicit);
-}
-
-ObjCMessageExpr *ObjCMessageExpr::Create(const ASTContext &Context, QualType T,
- ExprValueKind VK,
- SourceLocation LBracLoc,
- Expr *Receiver,
- Selector Sel,
- ArrayRef<SourceLocation> SelLocs,
- ObjCMethodDecl *Method,
- ArrayRef<Expr *> Args,
- SourceLocation RBracLoc,
- bool isImplicit) {
- assert((!SelLocs.empty() || isImplicit) &&
- "No selector locs for non-implicit message");
- ObjCMessageExpr *Mem;
- SelectorLocationsKind SelLocsK = SelectorLocationsKind();
- if (isImplicit)
- Mem = alloc(Context, Args.size(), 0);
- else
- Mem = alloc(Context, Args, RBracLoc, SelLocs, Sel, SelLocsK);
- return new (Mem) ObjCMessageExpr(T, VK, LBracLoc, Receiver, Sel,
- SelLocs, SelLocsK, Method, Args, RBracLoc,
- isImplicit);
-}
-
-ObjCMessageExpr *ObjCMessageExpr::CreateEmpty(const ASTContext &Context,
- unsigned NumArgs,
- unsigned NumStoredSelLocs) {
- ObjCMessageExpr *Mem = alloc(Context, NumArgs, NumStoredSelLocs);
- return new (Mem) ObjCMessageExpr(EmptyShell(), NumArgs);
-}
-
-ObjCMessageExpr *ObjCMessageExpr::alloc(const ASTContext &C,
- ArrayRef<Expr *> Args,
- SourceLocation RBraceLoc,
- ArrayRef<SourceLocation> SelLocs,
- Selector Sel,
- SelectorLocationsKind &SelLocsK) {
- SelLocsK = hasStandardSelectorLocs(Sel, SelLocs, Args, RBraceLoc);
- unsigned NumStoredSelLocs = (SelLocsK == SelLoc_NonStandard) ? SelLocs.size()
- : 0;
- return alloc(C, Args.size(), NumStoredSelLocs);
-}
-
-ObjCMessageExpr *ObjCMessageExpr::alloc(const ASTContext &C,
- unsigned NumArgs,
- unsigned NumStoredSelLocs) {
- unsigned Size = sizeof(ObjCMessageExpr) + sizeof(void *) +
- NumArgs * sizeof(Expr *) + NumStoredSelLocs * sizeof(SourceLocation);
- return (ObjCMessageExpr *)C.Allocate(Size,
- llvm::AlignOf<ObjCMessageExpr>::Alignment);
-}
-
-void ObjCMessageExpr::getSelectorLocs(
- SmallVectorImpl<SourceLocation> &SelLocs) const {
- for (unsigned i = 0, e = getNumSelectorLocs(); i != e; ++i)
- SelLocs.push_back(getSelectorLoc(i));
-}
-
-SourceRange ObjCMessageExpr::getReceiverRange() const {
- switch (getReceiverKind()) {
- case Instance:
- return getInstanceReceiver()->getSourceRange();
-
- case Class:
- return getClassReceiverTypeInfo()->getTypeLoc().getSourceRange();
-
- case SuperInstance:
- case SuperClass:
- return getSuperLoc();
- }
-
- llvm_unreachable("Invalid ReceiverKind!");
-}
-
-Selector ObjCMessageExpr::getSelector() const {
- if (HasMethod)
- return reinterpret_cast<const ObjCMethodDecl *>(SelectorOrMethod)
- ->getSelector();
- return Selector(SelectorOrMethod);
-}
-
-QualType ObjCMessageExpr::getReceiverType() const {
- switch (getReceiverKind()) {
- case Instance:
- return getInstanceReceiver()->getType();
- case Class:
- return getClassReceiver();
- case SuperInstance:
- case SuperClass:
- return getSuperType();
- }
-
- llvm_unreachable("unexpected receiver kind");
-}
-
-ObjCInterfaceDecl *ObjCMessageExpr::getReceiverInterface() const {
- QualType T = getReceiverType();
-
- if (const ObjCObjectPointerType *Ptr = T->getAs<ObjCObjectPointerType>())
- return Ptr->getInterfaceDecl();
-
- if (const ObjCObjectType *Ty = T->getAs<ObjCObjectType>())
- return Ty->getInterface();
-
- return nullptr;
-}
-
-StringRef ObjCBridgedCastExpr::getBridgeKindName() const {
- switch (getBridgeKind()) {
- case OBC_Bridge:
- return "__bridge";
- case OBC_BridgeTransfer:
- return "__bridge_transfer";
- case OBC_BridgeRetained:
- return "__bridge_retained";
- }
-
- llvm_unreachable("Invalid BridgeKind!");
-}
-
ShuffleVectorExpr::ShuffleVectorExpr(const ASTContext &C, ArrayRef<Expr*> args,
QualType Type, SourceLocation BLoc,
SourceLocation RP)
}
DesignatedInitExpr::DesignatedInitExpr(const ASTContext &C, QualType Ty,
- unsigned NumDesignators,
- const Designator *Designators,
+ llvm::ArrayRef<Designator> Designators,
SourceLocation EqualOrColonLoc,
bool GNUSyntax,
ArrayRef<Expr*> IndexExprs,
Init->isInstantiationDependent(),
Init->containsUnexpandedParameterPack()),
EqualOrColonLoc(EqualOrColonLoc), GNUSyntax(GNUSyntax),
- NumDesignators(NumDesignators), NumSubExprs(IndexExprs.size() + 1) {
+ NumDesignators(Designators.size()), NumSubExprs(IndexExprs.size() + 1) {
this->Designators = new (C) Designator[NumDesignators];
// Record the initializer itself.
- child_range Child = children();
+ child_iterator Child = child_begin();
*Child++ = Init;
// Copy the designators and their subexpressions, computing
// Compute type- and value-dependence.
Expr *Index = IndexExprs[IndexIdx];
if (Index->isTypeDependent() || Index->isValueDependent())
- ExprBits.ValueDependent = true;
+ ExprBits.TypeDependent = ExprBits.ValueDependent = true;
if (Index->isInstantiationDependent())
ExprBits.InstantiationDependent = true;
// Propagate unexpanded parameter packs.
Expr *End = IndexExprs[IndexIdx + 1];
if (Start->isTypeDependent() || Start->isValueDependent() ||
End->isTypeDependent() || End->isValueDependent()) {
- ExprBits.ValueDependent = true;
+ ExprBits.TypeDependent = ExprBits.ValueDependent = true;
ExprBits.InstantiationDependent = true;
} else if (Start->isInstantiationDependent() ||
End->isInstantiationDependent()) {
}
DesignatedInitExpr *
-DesignatedInitExpr::Create(const ASTContext &C, Designator *Designators,
- unsigned NumDesignators,
+DesignatedInitExpr::Create(const ASTContext &C,
+ llvm::ArrayRef<Designator> Designators,
ArrayRef<Expr*> IndexExprs,
SourceLocation ColonOrEqualLoc,
bool UsesColonSyntax, Expr *Init) {
- void *Mem = C.Allocate(sizeof(DesignatedInitExpr) +
- sizeof(Stmt *) * (IndexExprs.size() + 1), 8);
- return new (Mem) DesignatedInitExpr(C, C.VoidTy, NumDesignators, Designators,
+ void *Mem = C.Allocate(totalSizeToAlloc<Stmt *>(IndexExprs.size() + 1),
+ alignof(DesignatedInitExpr));
+ return new (Mem) DesignatedInitExpr(C, C.VoidTy, Designators,
ColonOrEqualLoc, UsesColonSyntax,
IndexExprs, Init);
}
DesignatedInitExpr *DesignatedInitExpr::CreateEmpty(const ASTContext &C,
unsigned NumIndexExprs) {
- void *Mem = C.Allocate(sizeof(DesignatedInitExpr) +
- sizeof(Stmt *) * (NumIndexExprs + 1), 8);
+ void *Mem = C.Allocate(totalSizeToAlloc<Stmt *>(NumIndexExprs + 1),
+ alignof(DesignatedInitExpr));
return new (Mem) DesignatedInitExpr(NumIndexExprs + 1);
}
SourceLocation DesignatedInitExpr::getLocStart() const {
SourceLocation StartLoc;
- Designator &First =
- *const_cast<DesignatedInitExpr*>(this)->designators_begin();
+ auto *DIE = const_cast<DesignatedInitExpr *>(this);
+ Designator &First = *DIE->getDesignator(0);
if (First.isFieldDesignator()) {
if (GNUSyntax)
StartLoc = SourceLocation::getFromRawEncoding(First.Field.FieldLoc);
Expr *DesignatedInitExpr::getArrayIndex(const Designator& D) const {
assert(D.Kind == Designator::ArrayDesignator && "Requires array designator");
- Stmt *const *SubExprs = reinterpret_cast<Stmt *const *>(this + 1);
- return cast<Expr>(*(SubExprs + D.ArrayOrRange.Index + 1));
+ return getSubExpr(D.ArrayOrRange.Index + 1);
}
Expr *DesignatedInitExpr::getArrayRangeStart(const Designator &D) const {
assert(D.Kind == Designator::ArrayRangeDesignator &&
"Requires array range designator");
- Stmt *const *SubExprs = reinterpret_cast<Stmt *const *>(this + 1);
- return cast<Expr>(*(SubExprs + D.ArrayOrRange.Index + 1));
+ return getSubExpr(D.ArrayOrRange.Index + 1);
}
Expr *DesignatedInitExpr::getArrayRangeEnd(const Designator &D) const {
assert(D.Kind == Designator::ArrayRangeDesignator &&
"Requires array range designator");
- Stmt *const *SubExprs = reinterpret_cast<Stmt *const *>(this + 1);
- return cast<Expr>(*(SubExprs + D.ArrayOrRange.Index + 2));
+ return getSubExpr(D.ArrayOrRange.Index + 2);
}
/// \brief Replaces the designator at index @p Idx with the series
NumDesignators = NumDesignators - 1 + NumNewDesignators;
}
+DesignatedInitUpdateExpr::DesignatedInitUpdateExpr(const ASTContext &C,
+ SourceLocation lBraceLoc, Expr *baseExpr, SourceLocation rBraceLoc)
+ : Expr(DesignatedInitUpdateExprClass, baseExpr->getType(), VK_RValue,
+ OK_Ordinary, false, false, false, false) {
+ BaseAndUpdaterExprs[0] = baseExpr;
+
+ InitListExpr *ILE = new (C) InitListExpr(C, lBraceLoc, None, rBraceLoc);
+ ILE->setType(baseExpr->getType());
+ BaseAndUpdaterExprs[1] = ILE;
+}
+
+SourceLocation DesignatedInitUpdateExpr::getLocStart() const {
+ return getBase()->getLocStart();
+}
+
+SourceLocation DesignatedInitUpdateExpr::getLocEnd() const {
+ return getBase()->getLocEnd();
+}
+
ParenListExpr::ParenListExpr(const ASTContext& C, SourceLocation lparenloc,
ArrayRef<Expr*> exprs,
SourceLocation rparenloc)
PseudoObjectExpr *PseudoObjectExpr::Create(const ASTContext &Context,
EmptyShell sh,
unsigned numSemanticExprs) {
- void *buffer = Context.Allocate(sizeof(PseudoObjectExpr) +
- (1 + numSemanticExprs) * sizeof(Expr*),
- llvm::alignOf<PseudoObjectExpr>());
+ void *buffer =
+ Context.Allocate(totalSizeToAlloc<Expr *>(1 + numSemanticExprs),
+ alignof(PseudoObjectExpr));
return new(buffer) PseudoObjectExpr(sh, numSemanticExprs);
}
assert(semantics[resultIndex]->getObjectKind() == OK_Ordinary);
}
- void *buffer = C.Allocate(sizeof(PseudoObjectExpr) +
- (1 + semantics.size()) * sizeof(Expr*),
- llvm::alignOf<PseudoObjectExpr>());
+ void *buffer = C.Allocate(totalSizeToAlloc<Expr *>(semantics.size() + 1),
+ alignof(PseudoObjectExpr));
return new(buffer) PseudoObjectExpr(type, VK, syntax, semantics,
resultIndex);
}
}
}
-//===----------------------------------------------------------------------===//
-// ExprIterator.
-//===----------------------------------------------------------------------===//
-
-Expr* ExprIterator::operator[](size_t idx) { return cast<Expr>(I[idx]); }
-Expr* ExprIterator::operator*() const { return cast<Expr>(*I); }
-Expr* ExprIterator::operator->() const { return cast<Expr>(*I); }
-const Expr* ConstExprIterator::operator[](size_t idx) const {
- return cast<Expr>(I[idx]);
-}
-const Expr* ConstExprIterator::operator*() const { return cast<Expr>(*I); }
-const Expr* ConstExprIterator::operator->() const { return cast<Expr>(*I); }
-
//===----------------------------------------------------------------------===//
// Child Iterators for iterating over subexpressions/substatements
//===----------------------------------------------------------------------===//
// UnaryExprOrTypeTraitExpr
Stmt::child_range UnaryExprOrTypeTraitExpr::children() {
+ const_child_range CCR =
+ const_cast<const UnaryExprOrTypeTraitExpr *>(this)->children();
+ return child_range(cast_away_const(CCR.begin()), cast_away_const(CCR.end()));
+}
+
+Stmt::const_child_range UnaryExprOrTypeTraitExpr::children() const {
// If this is of a type and the type is a VLA type (and not a typedef), the
// size expression of the VLA needs to be treated as an executable expression.
// Why isn't this weirdness documented better in StmtIterator?
if (isArgumentType()) {
- if (const VariableArrayType* T = dyn_cast<VariableArrayType>(
- getArgumentType().getTypePtr()))
- return child_range(child_iterator(T), child_iterator());
- return child_range();
+ if (const VariableArrayType *T =
+ dyn_cast<VariableArrayType>(getArgumentType().getTypePtr()))
+ return const_child_range(const_child_iterator(T), const_child_iterator());
+ return const_child_range(const_child_iterator(), const_child_iterator());
}
- return child_range(&Argument.Ex, &Argument.Ex + 1);
-}
-
-// ObjCMessageExpr
-Stmt::child_range ObjCMessageExpr::children() {
- Stmt **begin;
- if (getReceiverKind() == Instance)
- begin = reinterpret_cast<Stmt **>(this + 1);
- else
- begin = reinterpret_cast<Stmt **>(getArgs());
- return child_range(begin,
- reinterpret_cast<Stmt **>(getArgs() + getNumArgs()));
-}
-
-ObjCArrayLiteral::ObjCArrayLiteral(ArrayRef<Expr *> Elements,
- QualType T, ObjCMethodDecl *Method,
- SourceRange SR)
- : Expr(ObjCArrayLiteralClass, T, VK_RValue, OK_Ordinary,
- false, false, false, false),
- NumElements(Elements.size()), Range(SR), ArrayWithObjectsMethod(Method)
-{
- Expr **SaveElements = getElements();
- for (unsigned I = 0, N = Elements.size(); I != N; ++I) {
- if (Elements[I]->isTypeDependent() || Elements[I]->isValueDependent())
- ExprBits.ValueDependent = true;
- if (Elements[I]->isInstantiationDependent())
- ExprBits.InstantiationDependent = true;
- if (Elements[I]->containsUnexpandedParameterPack())
- ExprBits.ContainsUnexpandedParameterPack = true;
-
- SaveElements[I] = Elements[I];
- }
-}
-
-ObjCArrayLiteral *ObjCArrayLiteral::Create(const ASTContext &C,
- ArrayRef<Expr *> Elements,
- QualType T, ObjCMethodDecl * Method,
- SourceRange SR) {
- void *Mem = C.Allocate(sizeof(ObjCArrayLiteral)
- + Elements.size() * sizeof(Expr *));
- return new (Mem) ObjCArrayLiteral(Elements, T, Method, SR);
-}
-
-ObjCArrayLiteral *ObjCArrayLiteral::CreateEmpty(const ASTContext &C,
- unsigned NumElements) {
-
- void *Mem = C.Allocate(sizeof(ObjCArrayLiteral)
- + NumElements * sizeof(Expr *));
- return new (Mem) ObjCArrayLiteral(EmptyShell(), NumElements);
-}
-
-ObjCDictionaryLiteral::ObjCDictionaryLiteral(
- ArrayRef<ObjCDictionaryElement> VK,
- bool HasPackExpansions,
- QualType T, ObjCMethodDecl *method,
- SourceRange SR)
- : Expr(ObjCDictionaryLiteralClass, T, VK_RValue, OK_Ordinary, false, false,
- false, false),
- NumElements(VK.size()), HasPackExpansions(HasPackExpansions), Range(SR),
- DictWithObjectsMethod(method)
-{
- KeyValuePair *KeyValues = getKeyValues();
- ExpansionData *Expansions = getExpansionData();
- for (unsigned I = 0; I < NumElements; I++) {
- if (VK[I].Key->isTypeDependent() || VK[I].Key->isValueDependent() ||
- VK[I].Value->isTypeDependent() || VK[I].Value->isValueDependent())
- ExprBits.ValueDependent = true;
- if (VK[I].Key->isInstantiationDependent() ||
- VK[I].Value->isInstantiationDependent())
- ExprBits.InstantiationDependent = true;
- if (VK[I].EllipsisLoc.isInvalid() &&
- (VK[I].Key->containsUnexpandedParameterPack() ||
- VK[I].Value->containsUnexpandedParameterPack()))
- ExprBits.ContainsUnexpandedParameterPack = true;
-
- KeyValues[I].Key = VK[I].Key;
- KeyValues[I].Value = VK[I].Value;
- if (Expansions) {
- Expansions[I].EllipsisLoc = VK[I].EllipsisLoc;
- if (VK[I].NumExpansions)
- Expansions[I].NumExpansionsPlusOne = *VK[I].NumExpansions + 1;
- else
- Expansions[I].NumExpansionsPlusOne = 0;
- }
- }
-}
-
-ObjCDictionaryLiteral *
-ObjCDictionaryLiteral::Create(const ASTContext &C,
- ArrayRef<ObjCDictionaryElement> VK,
- bool HasPackExpansions,
- QualType T, ObjCMethodDecl *method,
- SourceRange SR) {
- unsigned ExpansionsSize = 0;
- if (HasPackExpansions)
- ExpansionsSize = sizeof(ExpansionData) * VK.size();
-
- void *Mem = C.Allocate(sizeof(ObjCDictionaryLiteral) +
- sizeof(KeyValuePair) * VK.size() + ExpansionsSize);
- return new (Mem) ObjCDictionaryLiteral(VK, HasPackExpansions, T, method, SR);
-}
-
-ObjCDictionaryLiteral *
-ObjCDictionaryLiteral::CreateEmpty(const ASTContext &C, unsigned NumElements,
- bool HasPackExpansions) {
- unsigned ExpansionsSize = 0;
- if (HasPackExpansions)
- ExpansionsSize = sizeof(ExpansionData) * NumElements;
- void *Mem = C.Allocate(sizeof(ObjCDictionaryLiteral) +
- sizeof(KeyValuePair) * NumElements + ExpansionsSize);
- return new (Mem) ObjCDictionaryLiteral(EmptyShell(), NumElements,
- HasPackExpansions);
-}
-
-ObjCSubscriptRefExpr *ObjCSubscriptRefExpr::Create(const ASTContext &C,
- Expr *base,
- Expr *key, QualType T,
- ObjCMethodDecl *getMethod,
- ObjCMethodDecl *setMethod,
- SourceLocation RB) {
- void *Mem = C.Allocate(sizeof(ObjCSubscriptRefExpr));
- return new (Mem) ObjCSubscriptRefExpr(base, key, T, VK_LValue,
- OK_ObjCSubscript,
- getMethod, setMethod, RB);
+ return const_child_range(&Argument.Ex, &Argument.Ex + 1);
}
AtomicExpr::AtomicExpr(SourceLocation BLoc, ArrayRef<Expr*> args,
}
llvm_unreachable("unknown atomic op");
}
+
+QualType OMPArraySectionExpr::getBaseOriginalType(const Expr *Base) {
+ unsigned ArraySectionCount = 0;
+ while (auto *OASE = dyn_cast<OMPArraySectionExpr>(Base->IgnoreParens())) {
+ Base = OASE->getBase();
+ ++ArraySectionCount;
+ }
+ while (auto *ASE =
+ dyn_cast<ArraySubscriptExpr>(Base->IgnoreParenImpCasts())) {
+ Base = ASE->getBase();
+ ++ArraySectionCount;
+ }
+ Base = Base->IgnoreParenImpCasts();
+ auto OriginalTy = Base->getType();
+ if (auto *DRE = dyn_cast<DeclRefExpr>(Base))
+ if (auto *PVD = dyn_cast<ParmVarDecl>(DRE->getDecl()))
+ OriginalTy = PVD->getOriginalType().getNonReferenceType();
+
+ for (unsigned Cnt = 0; Cnt < ArraySectionCount; ++Cnt) {
+ if (OriginalTy->isAnyPointerType())
+ OriginalTy = OriginalTy->getPointeeType();
+ else {
+ assert (OriginalTy->isArrayType());
+ OriginalTy = OriginalTy->castAsArrayTypeUnsafe()->getElementType();
+ }
+ }
+ return OriginalTy;
+}
projects / clang / blobdiff