24#include "llvm/IR/Constants.h"
25#include "llvm/IR/Function.h"
26#include "llvm/IR/GlobalVariable.h"
27#include "llvm/IR/IntrinsicInst.h"
28#include "llvm/IR/Intrinsics.h"
30using namespace CodeGen;
37class AggExprEmitter :
public StmtVisitor<AggExprEmitter> {
58 void withReturnValueSlot(
const Expr *E,
63 : CGF(cgf), Builder(CGF.Builder), Dest(Dest),
64 IsResultUnused(IsResultUnused) { }
73 void EmitAggLoadOfLValue(
const Expr *E);
88 void EmitMoveFromReturnSlot(
const Expr *E,
RValue Src);
90 void EmitArrayInit(
Address DestPtr, llvm::ArrayType *AType,
QualType ArrayQTy,
95 if (CGF.
getLangOpts().getGC() && TypeRequiresGCollection(T))
100 bool TypeRequiresGCollection(
QualType T);
111 void VisitStmt(
Stmt *S) {
133 if (llvm::Value *Result =
ConstantEmitter(CGF).tryEmitConstantExpr(E)) {
138 if (Result->getType() != StoreDest.
getType())
149 void VisitDeclRefExpr(
DeclRefExpr *E) { EmitAggLoadOfLValue(E); }
150 void VisitMemberExpr(
MemberExpr *ME) { EmitAggLoadOfLValue(ME); }
151 void VisitUnaryDeref(
UnaryOperator *E) { EmitAggLoadOfLValue(E); }
152 void VisitStringLiteral(
StringLiteral *E) { EmitAggLoadOfLValue(E); }
155 EmitAggLoadOfLValue(E);
158 EmitAggLoadOfLValue(E);
163 void VisitCallExpr(
const CallExpr *E);
164 void VisitStmtExpr(
const StmtExpr *E);
166 void VisitPointerToDataMemberBinaryOperator(
const BinaryOperator *BO);
176 EmitAggLoadOfLValue(E);
187 llvm::Value *outerBegin =
nullptr);
191 CodeGenFunction::CXXDefaultArgExprScope
Scope(CGF, DAE);
195 CodeGenFunction::CXXDefaultInitExprScope
Scope(CGF, DIE);
205 void VisitCXXTypeidExpr(
CXXTypeidExpr *E) { EmitAggLoadOfLValue(E); }
212 return EmitFinalDestCopy(E->
getType(), LV);
216 bool NeedsDestruction =
219 if (NeedsDestruction)
222 if (NeedsDestruction)
238 EmitFinalDestCopy(E->
getType(), Res);
250void AggExprEmitter::EmitAggLoadOfLValue(
const Expr *E) {
259 EmitFinalDestCopy(E->
getType(), LV);
263bool AggExprEmitter::TypeRequiresGCollection(
QualType T) {
266 if (!RecordTy)
return false;
270 if (isa<CXXRecordDecl>(Record) &&
271 (cast<CXXRecordDecl>(Record)->hasNonTrivialCopyConstructor() ||
272 !cast<CXXRecordDecl>(Record)->hasTrivialDestructor()))
276 return Record->hasObjectMember();
279void AggExprEmitter::withReturnValueSlot(
282 bool RequiresDestruction =
298 llvm::Value *LifetimeSizePtr =
nullptr;
299 llvm::IntrinsicInst *LifetimeStartInst =
nullptr;
304 llvm::TypeSize
Size =
307 if (LifetimeSizePtr) {
309 cast<llvm::IntrinsicInst>(std::prev(Builder.GetInsertPoint()));
310 assert(LifetimeStartInst->getIntrinsicID() ==
311 llvm::Intrinsic::lifetime_start &&
312 "Last insertion wasn't a lifetime.start?");
328 EmitFinalDestCopy(E->
getType(), Src);
330 if (!RequiresDestruction && LifetimeStartInst) {
341 assert(src.
isAggregate() &&
"value must be aggregate value!");
343 EmitFinalDestCopy(
type, srcLV, EVK_RValue);
360 if (SrcValueKind == EVK_RValue) {
381 EmitCopy(
type, Dest, srcAgg);
417 assert(Array.isSimple() &&
"initializer_list array not a simple lvalue");
418 Address ArrayPtr = Array.getAddress(CGF);
422 assert(
ArrayType &&
"std::initializer_list constructed from non-array");
427 if (Field ==
Record->field_end()) {
433 if (!
Field->getType()->isPointerType() ||
443 llvm::Value *
Zero = llvm::ConstantInt::get(CGF.
PtrDiffTy, 0);
444 llvm::Value *IdxStart[] = {
Zero,
Zero };
445 llvm::Value *ArrayStart = Builder.CreateInBoundsGEP(
450 if (Field ==
Record->field_end()) {
457 if (
Field->getType()->isPointerType() &&
461 llvm::Value *IdxEnd[] = {
Zero,
Size };
462 llvm::Value *ArrayEnd = Builder.CreateInBoundsGEP(
480 if (isa<ImplicitValueInitExpr>(E))
483 if (
auto *ILE = dyn_cast<InitListExpr>(E)) {
484 if (ILE->getNumInits())
489 if (
auto *Cons = dyn_cast_or_null<CXXConstructExpr>(E))
490 return Cons->getConstructor()->isDefaultConstructor() &&
491 Cons->getConstructor()->isTrivial();
499void AggExprEmitter::EmitArrayInit(
Address DestPtr, llvm::ArrayType *AType,
502 uint64_t NumInitElements = Args.size();
504 uint64_t NumArrayElements = AType->getNumElements();
505 assert(NumInitElements <= NumArrayElements);
512 llvm::Value *zero = llvm::ConstantInt::get(CGF.
SizeTy, 0);
513 llvm::Value *indices[] = { zero, zero };
514 llvm::Value *begin = Builder.CreateInBoundsGEP(
526 if (NumInitElements * elementSize.
getQuantity() > 16 &&
531 if (llvm::Constant *
C =
532 Emitter.tryEmitForInitializer(ExprToVisit, AS, ArrayQTy)) {
533 auto GV =
new llvm::GlobalVariable(
535 true, llvm::GlobalValue::PrivateLinkage,
C,
537 nullptr, llvm::GlobalVariable::NotThreadLocal,
542 Address GVAddr(GV, GV->getValueType(), Align);
543 EmitFinalDestCopy(ArrayQTy, CGF.
MakeAddrLValue(GVAddr, ArrayQTy));
554 llvm::Instruction *cleanupDominator =
nullptr;
561 "arrayinit.endOfInit");
562 cleanupDominator = Builder.CreateStore(begin, endOfInit);
573 llvm::Value *one = llvm::ConstantInt::get(CGF.
SizeTy, 1);
580 llvm::Value *element = begin;
583 for (uint64_t i = 0; i != NumInitElements; ++i) {
586 element = Builder.CreateInBoundsGEP(
587 llvmElementType, element, one,
"arrayinit.element");
592 if (endOfInit.
isValid()) Builder.CreateStore(element, endOfInit);
596 Address(element, llvmElementType, elementAlign), elementType);
597 EmitInitializationToLValue(Args[i], elementLV);
606 if (NumInitElements != NumArrayElements &&
607 !(Dest.
isZeroed() && hasTrivialFiller &&
614 if (NumInitElements) {
615 element = Builder.CreateInBoundsGEP(
616 llvmElementType, element, one,
"arrayinit.start");
617 if (endOfInit.
isValid()) Builder.CreateStore(element, endOfInit);
621 llvm::Value *end = Builder.CreateInBoundsGEP(
622 llvmElementType, begin,
623 llvm::ConstantInt::get(CGF.
SizeTy, NumArrayElements),
"arrayinit.end");
625 llvm::BasicBlock *entryBB = Builder.GetInsertBlock();
630 llvm::PHINode *currentElement =
631 Builder.CreatePHI(element->getType(), 2,
"arrayinit.cur");
632 currentElement->addIncoming(element, entryBB);
641 CodeGenFunction::RunCleanupsScope CleanupsScope(CGF);
643 Address(currentElement, llvmElementType, elementAlign), elementType);
645 EmitInitializationToLValue(ArrayFiller, elementLV);
647 EmitNullInitializationToLValue(elementLV);
651 llvm::Value *nextElement = Builder.CreateInBoundsGEP(
652 llvmElementType, currentElement, one,
"arrayinit.next");
655 if (endOfInit.
isValid()) Builder.CreateStore(nextElement, endOfInit);
658 llvm::Value *done = Builder.CreateICmpEQ(nextElement, end,
661 Builder.CreateCondBr(done, endBB, bodyBB);
662 currentElement->addIncoming(nextElement, Builder.GetInsertBlock());
693 EmitAggLoadOfLValue(E);
719 if (
auto castE = dyn_cast<CastExpr>(op)) {
720 if (castE->getCastKind() == kind)
721 return castE->getSubExpr();
726void AggExprEmitter::VisitCastExpr(
CastExpr *E) {
727 if (
const auto *ECE = dyn_cast<ExplicitCastExpr>(E))
732 assert(isa<CXXDynamicCastExpr>(E) &&
"CK_Dynamic without a dynamic_cast?");
734 CodeGenFunction::TCK_Load);
763 case CK_LValueToRValueBitCast: {
775 llvm::Value *SizeVal = llvm::ConstantInt::get(
778 Builder.CreateMemCpy(DestAddress, SourceAddress, SizeVal);
782 case CK_DerivedToBase:
783 case CK_BaseToDerived:
784 case CK_UncheckedDerivedToBase: {
785 llvm_unreachable(
"cannot perform hierarchy conversion in EmitAggExpr: "
786 "should have been unpacked before we got here");
789 case CK_NonAtomicToAtomic:
790 case CK_AtomicToNonAtomic: {
791 bool isToAtomic = (E->
getCastKind() == CK_NonAtomicToAtomic);
796 if (isToAtomic) std::swap(
atomicType, valueType);
809 (isToAtomic ? CK_AtomicToNonAtomic : CK_NonAtomicToAtomic);
816 "peephole significantly changed types?");
854 return EmitFinalDestCopy(valueType, rvalue);
856 case CK_AddressSpaceConversion:
859 case CK_LValueToRValue:
882 case CK_UserDefinedConversion:
883 case CK_ConstructorConversion:
886 "Implicit cast types must be compatible");
890 case CK_LValueBitCast:
891 llvm_unreachable(
"should not be emitting lvalue bitcast as rvalue");
895 case CK_ArrayToPointerDecay:
896 case CK_FunctionToPointerDecay:
897 case CK_NullToPointer:
898 case CK_NullToMemberPointer:
899 case CK_BaseToDerivedMemberPointer:
900 case CK_DerivedToBaseMemberPointer:
901 case CK_MemberPointerToBoolean:
902 case CK_ReinterpretMemberPointer:
903 case CK_IntegralToPointer:
904 case CK_PointerToIntegral:
905 case CK_PointerToBoolean:
908 case CK_IntegralCast:
909 case CK_BooleanToSignedIntegral:
910 case CK_IntegralToBoolean:
911 case CK_IntegralToFloating:
912 case CK_FloatingToIntegral:
913 case CK_FloatingToBoolean:
914 case CK_FloatingCast:
915 case CK_CPointerToObjCPointerCast:
916 case CK_BlockPointerToObjCPointerCast:
917 case CK_AnyPointerToBlockPointerCast:
918 case CK_ObjCObjectLValueCast:
919 case CK_FloatingRealToComplex:
920 case CK_FloatingComplexToReal:
921 case CK_FloatingComplexToBoolean:
922 case CK_FloatingComplexCast:
923 case CK_FloatingComplexToIntegralComplex:
924 case CK_IntegralRealToComplex:
925 case CK_IntegralComplexToReal:
926 case CK_IntegralComplexToBoolean:
927 case CK_IntegralComplexCast:
928 case CK_IntegralComplexToFloatingComplex:
929 case CK_ARCProduceObject:
930 case CK_ARCConsumeObject:
931 case CK_ARCReclaimReturnedObject:
932 case CK_ARCExtendBlockObject:
933 case CK_CopyAndAutoreleaseBlockObject:
934 case CK_BuiltinFnToFnPtr:
935 case CK_ZeroToOCLOpaqueType:
938 case CK_IntToOCLSampler:
939 case CK_FloatingToFixedPoint:
940 case CK_FixedPointToFloating:
941 case CK_FixedPointCast:
942 case CK_FixedPointToBoolean:
943 case CK_FixedPointToIntegral:
944 case CK_IntegralToFixedPoint:
945 llvm_unreachable(
"cast kind invalid for aggregate types");
949void AggExprEmitter::VisitCallExpr(
const CallExpr *E) {
951 EmitAggLoadOfLValue(E);
971void AggExprEmitter::VisitStmtExpr(
const StmtExpr *E) {
972 CodeGenFunction::StmtExprEvaluation eval(CGF);
985 const char *NameSuffix =
"") {
988 ArgTy = CT->getElementType();
992 "member pointers may only be compared for equality");
994 CGF, LHS, RHS, MPT,
false);
1000 llvm::CmpInst::Predicate FCmp;
1001 llvm::CmpInst::Predicate SCmp;
1002 llvm::CmpInst::Predicate UCmp;
1004 CmpInstInfo InstInfo = [&]() -> CmpInstInfo {
1005 using FI = llvm::FCmpInst;
1006 using II = llvm::ICmpInst;
1009 return {
"cmp.lt", FI::FCMP_OLT, II::ICMP_SLT, II::ICMP_ULT};
1011 return {
"cmp.gt", FI::FCMP_OGT, II::ICMP_SGT, II::ICMP_UGT};
1013 return {
"cmp.eq", FI::FCMP_OEQ, II::ICMP_EQ, II::ICMP_EQ};
1015 llvm_unreachable(
"Unrecognised CompareKind enum");
1019 return Builder.CreateFCmp(InstInfo.FCmp, LHS, RHS,
1020 llvm::Twine(InstInfo.Name) + NameSuffix);
1024 return Builder.CreateICmp(Inst, LHS, RHS,
1025 llvm::Twine(InstInfo.Name) + NameSuffix);
1028 llvm_unreachable(
"unsupported aggregate binary expression should have "
1029 "already been handled");
1033 using llvm::BasicBlock;
1034 using llvm::PHINode;
1041 "cannot copy non-trivially copyable aggregate");
1053 auto EmitOperand = [&](
Expr *E) -> std::pair<Value *, Value *> {
1062 auto LHSValues = EmitOperand(E->
getLHS()),
1063 RHSValues = EmitOperand(E->
getRHS());
1066 Value *Cmp =
EmitCompare(Builder, CGF, E, LHSValues.first, RHSValues.first,
1067 K, IsComplex ?
".r" :
"");
1072 RHSValues.second, K,
".i");
1073 return Builder.CreateAnd(Cmp, CmpImag,
"and.eq");
1076 return Builder.getInt(VInfo->getIntValue());
1084 Builder.CreateSelect(EmitCmp(
CK_Less), EmitCmpRes(CmpInfo.
getLess()),
1086 Select = Builder.CreateSelect(EmitCmp(
CK_Equal),
1088 SelectOne,
"sel.eq");
1090 Value *SelectEq = Builder.CreateSelect(
1095 SelectEq,
"sel.gt");
1096 Select = Builder.CreateSelect(
1097 EmitCmp(
CK_Less), EmitCmpRes(CmpInfo.
getLess()), SelectGT,
"sel.lt");
1112void AggExprEmitter::VisitBinaryOperator(
const BinaryOperator *E) {
1114 VisitPointerToDataMemberBinaryOperator(E);
1119void AggExprEmitter::VisitPointerToDataMemberBinaryOperator(
1122 EmitFinalDestCopy(E->
getType(), LV);
1132 if (
const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) {
1133 const VarDecl *var = dyn_cast<VarDecl>(DRE->getDecl());
1134 return (var && var->
hasAttr<BlocksAttr>());
1143 if (op->isAssignmentOp() || op->isPtrMemOp())
1147 if (op->getOpcode() == BO_Comma)
1155 = dyn_cast<AbstractConditionalOperator>(E)) {
1161 = dyn_cast<OpaqueValueExpr>(E)) {
1162 if (
const Expr *src = op->getSourceExpr())
1169 }
else if (
const CastExpr *
cast = dyn_cast<CastExpr>(E)) {
1170 if (
cast->getCastKind() == CK_LValueToRValue)
1176 }
else if (
const UnaryOperator *uop = dyn_cast<UnaryOperator>(E)) {
1180 }
else if (
const MemberExpr *mem = dyn_cast<MemberExpr>(E)) {
1196 &&
"Invalid assignment");
1251 EmitFinalDestCopy(E->
getType(), LHS);
1259void AggExprEmitter::
1266 CodeGenFunction::OpaqueValueMapping binding(CGF, E);
1268 CodeGenFunction::ConditionalEvaluation eval(CGF);
1274 bool destructNonTrivialCStruct =
1275 !isExternallyDestructed &&
1277 isExternallyDestructed |= destructNonTrivialCStruct;
1286 assert(CGF.
HaveInsertPoint() &&
"expression evaluation ended with no IP!");
1287 CGF.
Builder.CreateBr(ContBlock);
1300 if (destructNonTrivialCStruct)
1307void AggExprEmitter::VisitChooseExpr(
const ChooseExpr *CE) {
1311void AggExprEmitter::VisitVAArgExpr(
VAArgExpr *VE) {
1336 if (!wasExternallyDestructed)
1346void AggExprEmitter::VisitCXXInheritedCtorInitExpr(
1355AggExprEmitter::VisitLambdaExpr(
LambdaExpr *E) {
1362 llvm::Instruction *CleanupDominator =
nullptr;
1367 i != e; ++i, ++CurField) {
1370 if (CurField->hasCapturedVLAType()) {
1375 EmitInitializationToLValue(*i, LV);
1379 CurField->getType().isDestructedType()) {
1382 if (!CleanupDominator)
1385 llvm::Constant::getNullValue(CGF.
Int8PtrTy),
1397 for (
unsigned i = Cleanups.size(); i != 0; --i)
1401 if (CleanupDominator)
1402 CleanupDominator->eraseFromParent();
1406 CodeGenFunction::RunCleanupsScope cleanups(CGF);
1429 case CK_UserDefinedConversion:
1430 case CK_ConstructorConversion:
1436 case CK_BooleanToSignedIntegral:
1437 case CK_FloatingCast:
1438 case CK_FloatingComplexCast:
1439 case CK_FloatingComplexToBoolean:
1440 case CK_FloatingComplexToIntegralComplex:
1441 case CK_FloatingComplexToReal:
1442 case CK_FloatingRealToComplex:
1443 case CK_FloatingToBoolean:
1444 case CK_FloatingToIntegral:
1445 case CK_IntegralCast:
1446 case CK_IntegralComplexCast:
1447 case CK_IntegralComplexToBoolean:
1448 case CK_IntegralComplexToFloatingComplex:
1449 case CK_IntegralComplexToReal:
1450 case CK_IntegralRealToComplex:
1451 case CK_IntegralToBoolean:
1452 case CK_IntegralToFloating:
1454 case CK_IntegralToPointer:
1455 case CK_PointerToIntegral:
1457 case CK_VectorSplat:
1459 case CK_NonAtomicToAtomic:
1460 case CK_AtomicToNonAtomic:
1463 case CK_BaseToDerivedMemberPointer:
1464 case CK_DerivedToBaseMemberPointer:
1465 case CK_MemberPointerToBoolean:
1466 case CK_NullToMemberPointer:
1467 case CK_ReinterpretMemberPointer:
1471 case CK_AnyPointerToBlockPointerCast:
1472 case CK_BlockPointerToObjCPointerCast:
1473 case CK_CPointerToObjCPointerCast:
1474 case CK_ObjCObjectLValueCast:
1475 case CK_IntToOCLSampler:
1476 case CK_ZeroToOCLOpaqueType:
1480 case CK_FixedPointCast:
1481 case CK_FixedPointToBoolean:
1482 case CK_FixedPointToFloating:
1483 case CK_FixedPointToIntegral:
1484 case CK_FloatingToFixedPoint:
1485 case CK_IntegralToFixedPoint:
1489 case CK_AddressSpaceConversion:
1490 case CK_BaseToDerived:
1491 case CK_DerivedToBase:
1493 case CK_NullToPointer:
1494 case CK_PointerToBoolean:
1499 case CK_ARCConsumeObject:
1500 case CK_ARCExtendBlockObject:
1501 case CK_ARCProduceObject:
1502 case CK_ARCReclaimReturnedObject:
1503 case CK_CopyAndAutoreleaseBlockObject:
1504 case CK_ArrayToPointerDecay:
1505 case CK_FunctionToPointerDecay:
1506 case CK_BuiltinFnToFnPtr:
1508 case CK_LValueBitCast:
1509 case CK_LValueToRValue:
1510 case CK_LValueToRValueBitCast:
1511 case CK_UncheckedDerivedToBase:
1514 llvm_unreachable(
"Unhandled clang::CastKind enum");
1522 while (
auto *CE = dyn_cast<CastExpr>(E)) {
1530 return IL->getValue() == 0;
1533 return FL->getValue().isPosZero();
1535 if ((isa<ImplicitValueInitExpr>(E) || isa<CXXScalarValueInitExpr>(E)) &&
1539 if (
const CastExpr *ICE = dyn_cast<CastExpr>(E))
1540 return ICE->getCastKind() == CK_NullToPointer &&
1545 return CL->getValue() == 0;
1553AggExprEmitter::EmitInitializationToLValue(
Expr *E,
LValue LV) {
1560 }
else if (isa<ImplicitValueInitExpr>(E) || isa<CXXScalarValueInitExpr>(E)) {
1561 return EmitNullInitializationToLValue(LV);
1562 }
else if (isa<NoInitExpr>(E)) {
1565 }
else if (
type->isReferenceType()) {
1589 llvm_unreachable(
"bad evaluation kind");
1592void AggExprEmitter::EmitNullInitializationToLValue(
LValue lv) {
1625void AggExprEmitter::VisitInitListExpr(
InitListExpr *E) {
1632 VisitCXXParenListOrInitListExpr(
1636void AggExprEmitter::VisitCXXParenListOrInitListExpr(
1645 if (llvm::Constant *
C =
1646 CGF.
CGM.EmitConstantExpr(ExprToVisit, ExprToVisit->
getType(), &CGF)) {
1647 llvm::GlobalVariable* GV =
1648 new llvm::GlobalVariable(CGF.
CGM.
getModule(),
C->getType(),
true,
1649 llvm::GlobalValue::InternalLinkage,
C,
"");
1650 EmitFinalDestCopy(ExprToVisit->
getType(),
1664 InitExprs, ArrayFiller);
1669 "Only support structs/unions here!");
1675 unsigned NumInitElements = InitExprs.size();
1681 llvm::Instruction *cleanupDominator =
nullptr;
1683 cleanups.push_back(cleanup);
1684 if (!cleanupDominator)
1690 unsigned curInitIndex = 0;
1693 if (
auto *CXXRD = dyn_cast<CXXRecordDecl>(record)) {
1694 assert(NumInitElements >= CXXRD->getNumBases() &&
1695 "missing initializer for base class");
1696 for (
auto &
Base : CXXRD->bases()) {
1697 assert(!
Base.isVirtual() &&
"should not see vbases here");
1698 auto *BaseRD =
Base.getType()->getAsCXXRecordDecl();
1708 CGF.
EmitAggExpr(InitExprs[curInitIndex++], AggSlot);
1711 Base.getType().isDestructedType()) {
1719 CodeGenFunction::FieldConstructionScope FCS(CGF, Dest.
getAddress());
1724 if (!InitializedFieldInUnion) {
1730 for (
const auto *Field : record->
fields())
1731 assert((
Field->isUnnamedBitfield() ||
Field->isAnonymousStructOrUnion()) &&
"Only unnamed bitfields or ananymous class allowed");
1740 if (NumInitElements) {
1742 EmitInitializationToLValue(InitExprs[0], FieldLoc);
1745 EmitNullInitializationToLValue(FieldLoc);
1753 for (
const auto *field : record->
fields()) {
1755 if (field->getType()->isIncompleteArrayType())
1759 if (field->isUnnamedBitfield())
1765 if (curInitIndex == NumInitElements && Dest.
isZeroed() &&
1774 if (curInitIndex < NumInitElements) {
1776 EmitInitializationToLValue(InitExprs[curInitIndex++], LV);
1779 EmitNullInitializationToLValue(LV);
1785 bool pushedCleanup =
false;
1787 = field->getType().isDestructedType()) {
1793 pushedCleanup =
true;
1799 if (!pushedCleanup && LV.
isSimple())
1800 if (llvm::GetElementPtrInst *GEP =
1801 dyn_cast<llvm::GetElementPtrInst>(LV.
getPointer(CGF)))
1802 if (GEP->use_empty())
1803 GEP->eraseFromParent();
1808 assert((cleanupDominator || cleanups.empty()) &&
1809 "Missing cleanupDominator before deactivating cleanup blocks");
1810 for (
unsigned i = cleanups.size(); i != 0; --i)
1814 if (cleanupDominator)
1815 cleanupDominator->eraseFromParent();
1819 llvm::Value *outerBegin) {
1821 CodeGenFunction::OpaqueValueMapping binding(CGF, E->
getCommonExpr());
1830 llvm::Value *zero = llvm::ConstantInt::get(CGF.
SizeTy, 0);
1831 llvm::Value *indices[] = {zero, zero};
1832 llvm::Value *begin = Builder.CreateInBoundsGEP(
1849 llvm::BasicBlock *entryBB = Builder.GetInsertBlock();
1854 llvm::PHINode *index =
1855 Builder.CreatePHI(zero->getType(), 2,
"arrayinit.index");
1856 index->addIncoming(zero, entryBB);
1857 llvm::Value *element =
1858 Builder.CreateInBoundsGEP(llvmElementType, begin, index);
1864 if (outerBegin->getType() != element->getType())
1865 outerBegin = Builder.CreateBitCast(outerBegin, element->getType());
1878 CodeGenFunction::RunCleanupsScope CleanupsScope(CGF);
1879 CodeGenFunction::ArrayInitLoopExprScope
Scope(CGF, index);
1881 Address(element, llvmElementType, elementAlign), elementType);
1889 AggExprEmitter(CGF, elementSlot,
false)
1890 .VisitArrayInitLoopExpr(InnerLoop, outerBegin);
1892 EmitInitializationToLValue(E->
getSubExpr(), elementLV);
1896 llvm::Value *nextIndex = Builder.CreateNUWAdd(
1897 index, llvm::ConstantInt::get(CGF.
SizeTy, 1),
"arrayinit.next");
1898 index->addIncoming(nextIndex, Builder.GetInsertBlock());
1901 llvm::Value *done = Builder.CreateICmpEQ(
1902 nextIndex, llvm::ConstantInt::get(CGF.
SizeTy, numElements),
1905 Builder.CreateCondBr(done, endBB, bodyBB);
1918 EmitInitializationToLValue(E->
getBase(), DestLV);
1930 if (
auto *MTE = dyn_cast<MaterializeTemporaryExpr>(E))
1931 E = MTE->getSubExpr();
1941 ILE = dyn_cast<InitListExpr>(ILE->
getInit(0));
1949 if (!RT->isUnionType()) {
1953 unsigned ILEElement = 0;
1954 if (
auto *CXXRD = dyn_cast<CXXRecordDecl>(SD))
1955 while (ILEElement != CXXRD->getNumBases())
1958 for (
const auto *Field : SD->
fields()) {
1961 if (Field->getType()->isIncompleteArrayType() ||
1964 if (Field->isUnnamedBitfield())
1970 if (Field->getType()->isReferenceType())
1977 return NumNonZeroBytes;
1983 for (
unsigned i = 0, e = ILE->
getNumInits(); i != e; ++i)
1985 return NumNonZeroBytes;
2002 const CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl());
2015 if (NumNonZeroBytes*4 > Size)
2019 llvm::Constant *SizeVal = CGF.
Builder.getInt64(Size.getQuantity());
2038 "Invalid aggregate expression to emit");
2040 "slot has bits but no address");
2045 AggExprEmitter(*
this, Slot, Slot.
isIgnored()).Visit(
const_cast<Expr*
>(E));
2091 getContext().getASTRecordLayout(BaseRD).getSize() <=
2110 assert((
Record->hasTrivialCopyConstructor() ||
2111 Record->hasTrivialCopyAssignment() ||
2112 Record->hasTrivialMoveConstructor() ||
2113 Record->hasTrivialMoveAssignment() ||
2114 Record->hasAttr<TrivialABIAttr>() ||
Record->isUnion()) &&
2115 "Trying to aggregate-copy a type without a trivial copy/move "
2116 "constructor or assignment operator");
2125 if (
getTargetHooks().emitCUDADeviceBuiltinSurfaceDeviceCopy(*
this, Dest,
2129 if (
getTargetHooks().emitCUDADeviceBuiltinTextureDeviceCopy(*
this, Dest,
2155 llvm::Value *SizeVal =
nullptr;
2158 if (
auto *VAT = dyn_cast_or_null<VariableArrayType>(
2164 SizeVal =
Builder.CreateNUWMul(
2194 if (
Record->hasObjectMember()) {
2216 Inst->setMetadata(llvm::LLVMContext::MD_tbaa_struct, TBAAStructTag);
Defines the clang::ASTContext interface.
static CharUnits GetNumNonZeroBytesInInit(const Expr *E, CodeGenFunction &CGF)
GetNumNonZeroBytesInInit - Get an approximate count of the number of non-zero bytes that will be stor...
static Expr * findPeephole(Expr *op, CastKind kind, const ASTContext &ctx)
Attempt to look through various unimportant expressions to find a cast of the given kind.
static bool isBlockVarRef(const Expr *E)
Is the value of the given expression possibly a reference to or into a __block variable?
static bool isTrivialFiller(Expr *E)
Determine if E is a trivial array filler, that is, one that is equivalent to zero-initialization.
static bool isSimpleZero(const Expr *E, CodeGenFunction &CGF)
isSimpleZero - If emitting this value will obviously just cause a store of zero to memory,...
static llvm::Value * EmitCompare(CGBuilderTy &Builder, CodeGenFunction &CGF, const BinaryOperator *E, llvm::Value *LHS, llvm::Value *RHS, CompareKind Kind, const char *NameSuffix="")
static bool castPreservesZero(const CastExpr *CE)
Determine whether the given cast kind is known to always convert values with all zero bits in their v...
static void CheckAggExprForMemSetUse(AggValueSlot &Slot, const Expr *E, CodeGenFunction &CGF)
CheckAggExprForMemSetUse - If the initializer is large and has a lot of zeros in it,...
Defines the C++ Decl subclasses, other than those for templates (found in DeclTemplate....
Defines the C++ template declaration subclasses.
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
const ConstantArrayType * getAsConstantArrayType(QualType T) const
CharUnits getTypeAlignInChars(QualType T) const
Return the ABI-specified alignment of a (complete) type T, in characters.
const ASTRecordLayout & getASTRecordLayout(const RecordDecl *D) const
Get or compute information about the layout of the specified record (struct/union/class) D,...
bool hasSameType(QualType T1, QualType T2) const
Determine whether the given types T1 and T2 are equivalent.
QualType getBaseElementType(const ArrayType *VAT) const
Return the innermost element type of an array type.
ComparisonCategories CompCategories
Types and expressions required to build C++2a three-way comparisons using operator<=>,...
CanQualType getSizeType() const
Return the unique type for "size_t" (C99 7.17), defined in <stddef.h>.
TypeInfoChars getTypeInfoDataSizeInChars(QualType T) const
TypeInfoChars getTypeInfoInChars(const Type *T) const
bool hasSameUnqualifiedType(QualType T1, QualType T2) const
Determine whether the given types are equivalent after cvr-qualifiers have been removed.
const ArrayType * getAsArrayType(QualType T) const
Type Query functions.
CharUnits getTypeSizeInChars(QualType T) const
Return the size of the specified (complete) type T, in characters.
CharUnits toCharUnitsFromBits(int64_t BitSize) const
Convert a size in bits to a size in characters.
unsigned getTargetAddressSpace(LangAS AS) const
ASTRecordLayout - This class contains layout information for one RecordDecl, which is a struct/union/...
uint64_t getFieldOffset(unsigned FieldNo) const
getFieldOffset - Get the offset of the given field index, in bits.
CharUnits getBaseClassOffset(const CXXRecordDecl *Base) const
getBaseClassOffset - Get the offset, in chars, for the given base class.
CharUnits getNonVirtualSize() const
getNonVirtualSize - Get the non-virtual size (in chars) of an object, which is the size of the object...
AbstractConditionalOperator - An abstract base class for ConditionalOperator and BinaryConditionalOpe...
Expr * getTrueExpr() const
Expr * getFalseExpr() const
Represents a loop initializing the elements of an array.
llvm::APInt getArraySize() const
OpaqueValueExpr * getCommonExpr() const
Get the common subexpression shared by all initializations (the source array).
Expr * getSubExpr() const
Get the initializer to use for each array element.
ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting.
Represents an array type, per C99 6.7.5.2 - Array Declarators.
QualType getElementType() const
AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*, __atomic_load,...
QualType getValueType() const
Gets the type contained by this atomic type, i.e.
A builtin binary operation expression such as "x + y" or "x <= y".
Represents binding an expression to a temporary.
CXXTemporary * getTemporary()
const Expr * getSubExpr() const
Represents a call to a C++ constructor.
A default argument (C++ [dcl.fct.default]).
A use of a default initializer in a constructor or in aggregate initialization.
Expr * getExpr()
Get the initialization expression that will be used.
Represents a call to an inherited base class constructor from an inheriting constructor.
bool constructsVBase() const
Determine whether this constructor is actually constructing a base class (rather than a complete obje...
CXXConstructorDecl * getConstructor() const
Get the constructor that this expression will call.
bool inheritedFromVBase() const
Determine whether the inherited constructor is inherited from a virtual base of the object we constru...
Represents a list-initialization with parenthesis.
ArrayRef< Expr * > getInitExprs()
FieldDecl * getInitializedFieldInUnion()
Represents a C++ struct/union/class.
bool isTriviallyCopyable() const
Determine whether this class is considered trivially copyable per (C++11 [class]p6).
bool hasUserDeclaredConstructor() const
Determine whether this class has any user-declared constructors.
A rewritten comparison expression that was originally written using operator syntax.
Expr * getSemanticForm()
Get an equivalent semantic form for this expression.
An expression "T()" which creates a value-initialized rvalue of type T, which is a non-class type.
Implicit construction of a std::initializer_list<T> object from an array temporary within list-initia...
A C++ throw-expression (C++ [except.throw]).
A C++ typeid expression (C++ [expr.typeid]), which gets the type_info that corresponds to the supplie...
CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]).
QualType getCallReturnType(const ASTContext &Ctx) const
getCallReturnType - Get the return type of the call expr.
CastExpr - Base class for type casts, including both implicit casts (ImplicitCastExpr) and explicit c...
CastKind getCastKind() const
CharUnits - This is an opaque type for sizes expressed in character units.
llvm::Align getAsAlign() const
getAsAlign - Returns Quantity as a valid llvm::Align, Beware llvm::Align assumes power of two 8-bit b...
QuantityType getQuantity() const
getQuantity - Get the raw integer representation of this quantity.
static CharUnits One()
One - Construct a CharUnits quantity of one.
CharUnits alignmentOfArrayElement(CharUnits elementSize) const
Given that this is the alignment of the first element of an array, return the minimum alignment of an...
static CharUnits fromQuantity(QuantityType Quantity)
fromQuantity - Construct a CharUnits quantity from a raw integer type.
static CharUnits Zero()
Zero - Construct a CharUnits quantity of zero.
ChooseExpr - GNU builtin-in function __builtin_choose_expr.
Expr * getChosenSubExpr() const
getChosenSubExpr - Return the subexpression chosen according to the condition.
Represents a 'co_await' expression.
CharUnits getAlignment() const
Return the alignment of this pointer.
llvm::Type * getElementType() const
Return the type of the values stored in this address.
llvm::Value * getPointer() const
llvm::PointerType * getType() const
Return the type of the pointer value.
void setVolatile(bool flag)
static AggValueSlot ignored()
ignored - Returns an aggregate value slot indicating that the aggregate value is being ignored.
Address getAddress() const
CharUnits getPreferredSize(ASTContext &Ctx, QualType Type) const
Get the preferred size to use when storing a value to this slot.
static AggValueSlot forLValue(const LValue &LV, CodeGenFunction &CGF, IsDestructed_t isDestructed, NeedsGCBarriers_t needsGC, IsAliased_t isAliased, Overlap_t mayOverlap, IsZeroed_t isZeroed=IsNotZeroed, IsSanitizerChecked_t isChecked=IsNotSanitizerChecked)
NeedsGCBarriers_t requiresGCollection() const
void setExternallyDestructed(bool destructed=true)
void setZeroed(bool V=true)
llvm::Value * getPointer() const
IsZeroed_t isZeroed() const
Qualifiers getQualifiers() const
IsAliased_t isPotentiallyAliased() const
static AggValueSlot forAddr(Address addr, Qualifiers quals, IsDestructed_t isDestructed, NeedsGCBarriers_t needsGC, IsAliased_t isAliased, Overlap_t mayOverlap, IsZeroed_t isZeroed=IsNotZeroed, IsSanitizerChecked_t isChecked=IsNotSanitizerChecked)
forAddr - Make a slot for an aggregate value.
IsDestructed_t isExternallyDestructed() const
Overlap_t mayOverlap() const
A scoped helper to set the current debug location to the specified location or preferred location of ...
Address CreateElementBitCast(Address Addr, llvm::Type *Ty, const llvm::Twine &Name="")
Cast the element type of the given address to a different type, preserving information like the align...
llvm::CallInst * CreateMemSet(Address Dest, llvm::Value *Value, llvm::Value *Size, bool IsVolatile=false)
Address CreateStructGEP(Address Addr, unsigned Index, const llvm::Twine &Name="")
llvm::CallInst * CreateMemCpy(Address Dest, Address Src, llvm::Value *Size, bool IsVolatile=false)
llvm::LoadInst * CreateAlignedLoad(llvm::Type *Ty, llvm::Value *Addr, CharUnits Align, const llvm::Twine &Name="")
virtual llvm::Value * EmitMemberPointerComparison(CodeGenFunction &CGF, llvm::Value *L, llvm::Value *R, const MemberPointerType *MPT, bool Inequality)
Emit a comparison between two member pointers. Returns an i1.
virtual void EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF, Address DestPtr, Address SrcPtr, llvm::Value *Size)=0
CodeGenFunction - This class organizes the per-function state that is used while generating LLVM code...
void EmitNullInitialization(Address DestPtr, QualType Ty)
EmitNullInitialization - Generate code to set a value of the given type to null, If the type contains...
llvm::Value * EmitLifetimeStart(llvm::TypeSize Size, llvm::Value *Addr)
void DeactivateCleanupBlock(EHScopeStack::stable_iterator Cleanup, llvm::Instruction *DominatingIP)
DeactivateCleanupBlock - Deactivates the given cleanup block.
static TypeEvaluationKind getEvaluationKind(QualType T)
getEvaluationKind - Return the TypeEvaluationKind of QualType T.
LValue getOrCreateOpaqueLValueMapping(const OpaqueValueExpr *e)
Given an opaque value expression, return its LValue mapping if it exists, otherwise create one.
LValue EmitAggExprToLValue(const Expr *E)
EmitAggExprToLValue - Emit the computation of the specified expression of aggregate type into a tempo...
void EmitLifetimeEnd(llvm::Value *Size, llvm::Value *Addr)
void EmitStoreThroughLValue(RValue Src, LValue Dst, bool isInit=false)
EmitStoreThroughLValue - Store the specified rvalue into the specified lvalue, where both are guarant...
void pushLifetimeExtendedDestroy(CleanupKind kind, Address addr, QualType type, Destroyer *destroyer, bool useEHCleanupForArray)
static bool hasScalarEvaluationKind(QualType T)
void pushIrregularPartialArrayCleanup(llvm::Value *arrayBegin, Address arrayEndPointer, QualType elementType, CharUnits elementAlignment, Destroyer *destroyer)
llvm::Value * emitArrayLength(const ArrayType *arrayType, QualType &baseType, Address &addr)
emitArrayLength - Compute the length of an array, even if it's a VLA, and drill down to the base elem...
AggValueSlot::Overlap_t getOverlapForBaseInit(const CXXRecordDecl *RD, const CXXRecordDecl *BaseRD, bool IsVirtual)
Determine whether a base class initialization may overlap some other object.
LValue EmitLValue(const Expr *E, KnownNonNull_t IsKnownNonNull=NotKnownNonNull)
EmitLValue - Emit code to compute a designator that specifies the location of the expression.
RValue EmitAtomicLoad(LValue LV, SourceLocation SL, AggValueSlot Slot=AggValueSlot::ignored())
bool hasVolatileMember(QualType T)
hasVolatileMember - returns true if aggregate type has a volatile member.
void callCStructCopyAssignmentOperator(LValue Dst, LValue Src)
void callCStructMoveConstructor(LValue Dst, LValue Src)
void callCStructCopyConstructor(LValue Dst, LValue Src)
llvm::BasicBlock * createBasicBlock(const Twine &name="", llvm::Function *parent=nullptr, llvm::BasicBlock *before=nullptr)
createBasicBlock - Create an LLVM basic block.
const LangOptions & getLangOpts() const
LValue EmitLValueForFieldInitialization(LValue Base, const FieldDecl *Field)
EmitLValueForFieldInitialization - Like EmitLValueForField, except that if the Field is a reference,...
void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false)
EmitBlock - Emit the given block.
llvm::AllocaInst * CreateTempAlloca(llvm::Type *Ty, const Twine &Name="tmp", llvm::Value *ArraySize=nullptr)
CreateTempAlloca - This creates an alloca and inserts it into the entry block if ArraySize is nullptr...
void EmitInheritedCXXConstructorCall(const CXXConstructorDecl *D, bool ForVirtualBase, Address This, bool InheritedFromVBase, const CXXInheritedCtorInitExpr *E)
Emit a call to a constructor inherited from a base class, passing the current constructor's arguments...
RValue EmitObjCMessageExpr(const ObjCMessageExpr *E, ReturnValueSlot Return=ReturnValueSlot())
void EmitIgnoredExpr(const Expr *E)
EmitIgnoredExpr - Emit an expression in a context which ignores the result.
llvm::Type * ConvertTypeForMem(QualType T)
void EmitScalarInit(const Expr *init, const ValueDecl *D, LValue lvalue, bool capturedByInit)
LValue EmitCheckedLValue(const Expr *E, TypeCheckKind TCK)
Same as EmitLValue but additionally we generate checking code to guard against undefined behavior.
void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, llvm::BasicBlock *FalseBlock, uint64_t TrueCount, Stmt::Likelihood LH=Stmt::LH_None)
EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g.
Destroyer * getDestroyer(QualType::DestructionKind destructionKind)
void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, llvm::Value **Result=nullptr)
EmitStoreThroughBitfieldLValue - Store Src into Dst with same constraints as EmitStoreThroughLValue.
const TargetInfo & getTarget() const
llvm::Value * getTypeSize(QualType Ty)
Returns calculated size of the specified type.
void EmitComplexExprIntoLValue(const Expr *E, LValue dest, bool isInit)
EmitComplexExprIntoLValue - Emit the given expression of complex type and place its result into the s...
void pushFullExprCleanup(CleanupKind kind, As... A)
pushFullExprCleanup - Push a cleanup to be run at the end of the current full-expression.
RValue EmitAnyExpr(const Expr *E, AggValueSlot aggSlot=AggValueSlot::ignored(), bool ignoreResult=false)
EmitAnyExpr - Emit code to compute the specified expression which can have any type.
RValue EmitCoyieldExpr(const CoyieldExpr &E, AggValueSlot aggSlot=AggValueSlot::ignored(), bool ignoreResult=false)
bool HaveInsertPoint() const
HaveInsertPoint - True if an insertion point is defined.
void ErrorUnsupported(const Stmt *S, const char *Type)
ErrorUnsupported - Print out an error that codegen doesn't support the specified stmt yet.
AggValueSlot::Overlap_t getOverlapForFieldInit(const FieldDecl *FD)
Determine whether a field initialization may overlap some other object.
void EmitAggregateCopy(LValue Dest, LValue Src, QualType EltTy, AggValueSlot::Overlap_t MayOverlap, bool isVolatile=false)
EmitAggregateCopy - Emit an aggregate copy.
const TargetCodeGenInfo & getTargetHooks() const
RValue EmitReferenceBindingToExpr(const Expr *E)
Emits a reference binding to the passed in expression.
void EmitAggExpr(const Expr *E, AggValueSlot AS)
EmitAggExpr - Emit the computation of the specified expression of aggregate type.
Address EmitCompoundStmt(const CompoundStmt &S, bool GetLast=false, AggValueSlot AVS=AggValueSlot::ignored())
void EmitCXXTemporary(const CXXTemporary *Temporary, QualType TempType, Address Ptr)
void EmitAggregateStore(llvm::Value *Val, Address Dest, bool DestIsVolatile)
Build all the stores needed to initialize an aggregate at Dest with the value Val.
RValue EmitPseudoObjectRValue(const PseudoObjectExpr *e, AggValueSlot slot=AggValueSlot::ignored())
ASTContext & getContext() const
Address CreateMemTemp(QualType T, const Twine &Name="tmp", Address *Alloca=nullptr)
CreateMemTemp - Create a temporary memory object of the given type, with appropriate alignmen and cas...
void EmitCXXThrowExpr(const CXXThrowExpr *E, bool KeepInsertionPoint=true)
void pushDestroy(QualType::DestructionKind dtorKind, Address addr, QualType type)
Address GetAddressOfDirectBaseInCompleteClass(Address Value, const CXXRecordDecl *Derived, const CXXRecordDecl *Base, bool BaseIsVirtual)
GetAddressOfBaseOfCompleteClass - Convert the given pointer to a complete class to the given direct b...
void callCStructMoveAssignmentOperator(LValue Dst, LValue Src)
bool needsEHCleanup(QualType::DestructionKind kind)
Determines whether an EH cleanup is required to destroy a type with the given destruction kind.
CleanupKind getCleanupKind(QualType::DestructionKind kind)
void EmitCXXConstructExpr(const CXXConstructExpr *E, AggValueSlot Dest)
llvm::Type * ConvertType(QualType T)
Address EmitVAArg(VAArgExpr *VE, Address &VAListAddr)
Generate code to get an argument from the passed in pointer and update it accordingly.
CodeGenTypes & getTypes() const
RValue EmitCoawaitExpr(const CoawaitExpr &E, AggValueSlot aggSlot=AggValueSlot::ignored(), bool ignoreResult=false)
llvm::Value * EmitDynamicCast(Address V, const CXXDynamicCastExpr *DCE)
uint64_t getProfileCount(const Stmt *S)
Get the profiler's count for the given statement.
LValue EmitPseudoObjectLValue(const PseudoObjectExpr *e)
static bool hasAggregateEvaluationKind(QualType T)
LValue MakeAddrLValue(Address Addr, QualType T, AlignmentSource Source=AlignmentSource::Type)
void EmitLambdaVLACapture(const VariableArrayType *VAT, LValue LV)
void EmitAtomicStore(RValue rvalue, LValue lvalue, bool isInit)
AggValueSlot CreateAggTemp(QualType T, const Twine &Name="tmp", Address *Alloca=nullptr)
CreateAggTemp - Create a temporary memory object for the given aggregate type.
RValue EmitCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue=ReturnValueSlot())
llvm::Value * EmitScalarExpr(const Expr *E, bool IgnoreResultAssign=false)
EmitScalarExpr - Emit the computation of the specified expression of LLVM scalar type,...
bool LValueIsSuitableForInlineAtomic(LValue Src)
void incrementProfileCounter(const Stmt *S, llvm::Value *StepV=nullptr)
Increment the profiler's counter for the given statement by StepV.
void pushRegularPartialArrayCleanup(llvm::Value *arrayBegin, llvm::Value *arrayEnd, QualType elementType, CharUnits elementAlignment, Destroyer *destroyer)
void EmitStoreOfScalar(llvm::Value *Value, Address Addr, bool Volatile, QualType Ty, AlignmentSource Source=AlignmentSource::Type, bool isInit=false, bool isNontemporal=false)
EmitStoreOfScalar - Store a scalar value to an address, taking care to appropriately convert from the...
RValue EmitAtomicExpr(AtomicExpr *E)
LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E)
This class organizes the cross-function state that is used while generating LLVM code.
void EmitExplicitCastExprType(const ExplicitCastExpr *E, CodeGenFunction *CGF=nullptr)
Emit type info if type of an expression is a variably modified type.
llvm::MDNode * getTBAAStructInfo(QualType QTy)
llvm::Module & getModule() const
bool isPaddedAtomicType(QualType type)
void ErrorUnsupported(const Stmt *S, const char *Type)
Print out an error that codegen doesn't support the specified stmt yet.
TBAAAccessInfo mergeTBAAInfoForMemoryTransfer(TBAAAccessInfo DestInfo, TBAAAccessInfo SrcInfo)
mergeTBAAInfoForMemoryTransfer - Get merged TBAA information for the purposes of memory transfer call...
const LangOptions & getLangOpts() const
const llvm::DataLayout & getDataLayout() const
CGCXXABI & getCXXABI() const
void DecorateInstructionWithTBAA(llvm::Instruction *Inst, TBAAAccessInfo TBAAInfo)
DecorateInstructionWithTBAA - Decorate the instruction with a TBAA tag.
ASTContext & getContext() const
const CodeGenOptions & getCodeGenOpts() const
CGObjCRuntime & getObjCRuntime()
Return a reference to the configured Objective-C runtime.
llvm::Constant * EmitNullConstant(QualType T)
Return the result of value-initializing the given type, i.e.
bool isPointerZeroInitializable(QualType T)
Check if the pointer type can be zero-initialized (in the C++ sense) with an LLVM zeroinitializer.
bool isZeroInitializable(QualType T)
IsZeroInitializable - Return whether a type can be zero-initialized (in the C++ sense) with an LLVM z...
A saved depth on the scope stack.
stable_iterator stable_begin() const
Create a stable reference to the top of the EH stack.
LValue - This represents an lvalue references.
Address getAddress(CodeGenFunction &CGF) const
llvm::Value * getPointer(CodeGenFunction &CGF) const
TBAAAccessInfo getTBAAInfo() const
void setNonGC(bool Value)
RValue - This trivial value class is used to represent the result of an expression that is evaluated.
static RValue get(llvm::Value *V)
llvm::Value * getAggregatePointer() const
static RValue getAggregate(Address addr, bool isVolatile=false)
Address getAggregateAddress() const
getAggregateAddr() - Return the Value* of the address of the aggregate.
llvm::Value * getScalarVal() const
getScalarVal() - Return the Value* of this scalar value.
std::pair< llvm::Value *, llvm::Value * > getComplexVal() const
getComplexVal - Return the real/imag components of this complex value.
ReturnValueSlot - Contains the address where the return value of a function can be stored,...
const ComparisonCategoryInfo & getInfoForType(QualType Ty) const
Return the comparison category information as specified by getCategoryForType(Ty).
bool isPartial() const
True iff the comparison is not totally ordered.
const ValueInfo * getLess() const
const ValueInfo * getUnordered() const
const CXXRecordDecl * Record
The declaration for the comparison category type from the standard library.
const ValueInfo * getGreater() const
const ValueInfo * getEqualOrEquiv() const
Complex values, per C99 6.2.5p11.
CompoundLiteralExpr - [C99 6.5.2.5].
const Expr * getInitializer() const
Represents the canonical version of C arrays with a specified constant size.
ConstantExpr - An expression that occurs in a constant context and optionally the result of evaluatin...
Represents a 'co_yield' expression.
specific_decl_iterator - Iterates over a subrange of declarations stored in a DeclContext,...
A reference to a declared variable, function, enum, etc.
InitListExpr * getUpdater() const
Represents an expression – generally a full-expression – that introduces cleanups to be run at the en...
This represents one expression.
Expr * IgnoreParenNoopCasts(const ASTContext &Ctx) LLVM_READONLY
Skip past any parenthese and casts which do not change the value (including ptr->int casts of the sam...
Expr * IgnoreParens() LLVM_READONLY
Skip past any parentheses which might surround this expression until reaching a fixed point.
bool HasSideEffects(const ASTContext &Ctx, bool IncludePossibleEffects=true) const
HasSideEffects - This routine returns true for all those expressions which have any effect other than...
SourceLocation getExprLoc() const LLVM_READONLY
getExprLoc - Return the preferred location for the arrow when diagnosing a problem with a generic exp...
Represents a member of a struct/union/class.
unsigned getFieldIndex() const
Returns the index of this field within its record, as appropriate for passing to ASTRecordLayout::get...
const RecordDecl * getParent() const
Returns the parent of this field declaration, which is the struct in which this field is defined.
const Expr * getSubExpr() const
Represents a C11 generic selection.
Represents an implicitly-generated value initialization of an object of a given type.
Describes an C or C++ initializer list.
bool isTransparent() const
Is this a transparent initializer list (that is, an InitListExpr that is purely syntactic,...
FieldDecl * getInitializedFieldInUnion()
If this initializes a union, specifies which field in the union to initialize.
unsigned getNumInits() const
bool hadArrayRangeDesignator() const
Expr * getArrayFiller()
If this initializer list initializes an array with more elements than there are initializers in the l...
const Expr * getInit(unsigned Init) const
ArrayRef< Expr * > inits()
A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked l...
capture_init_iterator capture_init_end()
Retrieve the iterator pointing one past the last initialization argument for this lambda expression.
Expr *const * const_capture_init_iterator
Const iterator that walks over the capture initialization arguments.
capture_init_iterator capture_init_begin()
Retrieve the first initialization argument for this lambda expression (which initializes the first ca...
CXXRecordDecl * getLambdaClass() const
Retrieve the class that corresponds to the lambda.
Represents a prvalue temporary that is written into memory so that a reference can bind to it.
Expr * getSubExpr() const
Retrieve the temporary-generating subexpression whose value will be materialized into a glvalue.
MemberExpr - [C99 6.5.2.3] Structure and Union Members.
A pointer to member type per C++ 8.3.3 - Pointers to members.
Represents a place-holder for an object not to be initialized by anything.
ObjCIvarRefExpr - A reference to an ObjC instance variable.
An expression that sends a message to the given Objective-C object or class.
OpaqueValueExpr - An expression referring to an opaque object of a fixed type and value class.
Expr * getSourceExpr() const
The source expression of an opaque value expression is the expression which originally generated the ...
ParenExpr - This represents a parethesized expression, e.g.
const Expr * getSubExpr() const
[C99 6.4.2.2] - A predefined identifier such as func.
PseudoObjectExpr - An expression which accesses a pseudo-object l-value.
A (possibly-)qualified type.
bool isVolatileQualified() const
Determine whether this type is volatile-qualified.
bool isTriviallyCopyableType(const ASTContext &Context) const
Return true if this is a trivially copyable type (C++0x [basic.types]p9)
LangAS getAddressSpace() const
Return the address space of this type.
DestructionKind isDestructedType() const
Returns a nonzero value if objects of this type require non-trivial work to clean up after.
bool isPODType(const ASTContext &Context) const
Determine whether this is a Plain Old Data (POD) type (C++ 3.9p10).
@ PCK_Struct
The type is a struct containing a field whose type is neither PCK_Trivial nor PCK_VolatileTrivial.
The collection of all-type qualifiers we support.
Represents a struct/union/class.
bool hasObjectMember() const
field_range fields() const
field_iterator field_begin() const
A helper class that allows the use of isa/cast/dyncast to detect TagType objects of structs/unions/cl...
RecordDecl * getDecl() const
Scope - A scope is a transient data structure that is used while parsing the program.
StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}).
CompoundStmt * getSubStmt()
RetTy Visit(PTR(Stmt) S, ParamTys... P)
StmtVisitor - This class implements a simple visitor for Stmt subclasses.
Stmt - This represents one statement.
StringLiteral - This represents a string literal expression, e.g.
Represents a reference to a non-type template parameter that has been substituted with a template arg...
Expr * getReplacement() const
uint64_t getPointerWidth(LangAS AddrSpace) const
Return the width of pointers on this target, for the specified address space.
bool isPointerType() const
const T * castAs() const
Member-template castAs<specific type>.
bool isReferenceType() const
bool isCUDADeviceBuiltinSurfaceType() const
Check if the type is the CUDA device builtin surface type.
bool isIntegralOrEnumerationType() const
Determine whether this type is an integral or enumeration type.
bool isAnyComplexType() const
bool hasSignedIntegerRepresentation() const
Determine whether this type has an signed integer representation of some sort, e.g....
bool isMemberPointerType() const
bool isAtomicType() const
bool isCUDADeviceBuiltinTextureType() const
Check if the type is the CUDA device builtin texture type.
bool hasFloatingRepresentation() const
Determine whether this type has a floating-point representation of some sort, e.g....
bool isRealFloatingType() const
Floating point categories.
const T * getAs() const
Member-template getAs<specific type>'.
bool isNullPtrType() const
bool isRecordType() const
UnaryOperator - This represents the unary-expression's (except sizeof and alignof),...
Expr * getSubExpr() const
Represents a call to the builtin function __builtin_va_arg.
Represents a variable declaration or definition.
@ EHCleanup
Denotes a cleanup that should run when a scope is exited using exceptional control flow (a throw stat...
const internal::VariadicAllOfMatcher< Type > type
Matches Types in the clang AST.
const AstTypeMatcher< AtomicType > atomicType
Matches atomic types.
bool Zero(InterpState &S, CodePtr OpPC)
bool GE(InterpState &S, CodePtr OpPC)
@ C
Languages that the frontend can parse and compile.
LangAS
Defines the address space values used by the address space qualifier of QualType.
CastKind
CastKind - The kind of operation required for a conversion.
ExprValueKind
The categorization of expression values, currently following the C++11 scheme.
U cast(CodeGen::Address addr)
llvm::IntegerType * Int8Ty
i8, i16, i32, and i64
llvm::IntegerType * SizeTy
llvm::PointerType * Int8PtrTy
llvm::IntegerType * PtrDiffTy
CharUnits getPointerAlign() const