25#include "llvm/IR/Constants.h"
26#include "llvm/IR/Function.h"
27#include "llvm/IR/GlobalVariable.h"
28#include "llvm/IR/Instruction.h"
29#include "llvm/IR/IntrinsicInst.h"
30#include "llvm/IR/Intrinsics.h"
32using namespace CodeGen;
43class AggExprEmitter :
public StmtVisitor<AggExprEmitter> {
64 void withReturnValueSlot(
const Expr *
E,
69 : CGF(cgf), Builder(CGF.Builder), Dest(Dest),
70 IsResultUnused(IsResultUnused) { }
79 void EmitAggLoadOfLValue(
const Expr *
E);
84 CodeGenFunction::ExprValueKind SrcValueKind =
85 CodeGenFunction::EVK_NonRValue);
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) {
127 return Visit(
E->getReplacement());
138 if (Result->getType() != StoreDest.
getType())
145 return Visit(
E->getSubExpr());
149 void VisitDeclRefExpr(
DeclRefExpr *
E) { EmitAggLoadOfLValue(
E); }
150 void VisitMemberExpr(
MemberExpr *ME) { EmitAggLoadOfLValue(ME); }
155 EmitAggLoadOfLValue(
E);
158 EmitAggLoadOfLValue(
E);
166 void VisitPointerToDataMemberBinaryOperator(
const BinaryOperator *BO);
171 Visit(
E->getSemanticForm());
176 EmitAggLoadOfLValue(
E);
187 llvm::Value *outerBegin =
nullptr);
191 CodeGenFunction::CXXDefaultArgExprScope
Scope(CGF, DAE);
195 CodeGenFunction::CXXDefaultInitExprScope
Scope(CGF, DIE);
212 return EmitFinalDestCopy(
E->
getType(), LV);
216 bool NeedsDestruction =
219 if (NeedsDestruction)
222 if (NeedsDestruction)
238 EmitFinalDestCopy(
E->
getType(), Res);
241 Visit(
E->getSelectedExpr());
253void AggExprEmitter::EmitAggLoadOfLValue(
const Expr *
E) {
262 EmitFinalDestCopy(
E->
getType(), LV);
266bool AggExprEmitter::TypeRequiresGCollection(
QualType T) {
269 if (!RecordTy)
return false;
273 if (isa<CXXRecordDecl>(
Record) &&
274 (cast<CXXRecordDecl>(
Record)->hasNonTrivialCopyConstructor() ||
275 !cast<CXXRecordDecl>(
Record)->hasTrivialDestructor()))
282void AggExprEmitter::withReturnValueSlot(
285 bool RequiresDestruction =
295 (RequiresDestruction && Dest.
isIgnored());
301 llvm::Value *LifetimeSizePtr =
nullptr;
302 llvm::IntrinsicInst *LifetimeStartInst =
nullptr;
307 llvm::TypeSize
Size =
310 if (LifetimeSizePtr) {
312 cast<llvm::IntrinsicInst>(std::prev(Builder.GetInsertPoint()));
313 assert(LifetimeStartInst->getIntrinsicID() ==
314 llvm::Intrinsic::lifetime_start &&
315 "Last insertion wasn't a lifetime.start?");
332 EmitFinalDestCopy(
E->
getType(), Src);
334 if (!RequiresDestruction && LifetimeStartInst) {
345 assert(src.
isAggregate() &&
"value must be aggregate value!");
347 EmitFinalDestCopy(
type, srcLV, CodeGenFunction::EVK_RValue);
351void AggExprEmitter::EmitFinalDestCopy(
353 CodeGenFunction::ExprValueKind SrcValueKind) {
365 if (SrcValueKind == CodeGenFunction::EVK_RValue) {
386 EmitCopy(
type, Dest, srcAgg);
422 assert(Array.isSimple() &&
"initializer_list array not a simple lvalue");
423 Address ArrayPtr = Array.getAddress();
427 assert(
ArrayType &&
"std::initializer_list constructed from non-array");
431 assert(Field !=
Record->field_end() &&
434 "Expected std::initializer_list first field to be const E *");
443 assert(Field !=
Record->field_end() &&
444 "Expected std::initializer_list to have two fields");
454 assert(
Field->getType()->isPointerType() &&
457 "Expected std::initializer_list second field to be const E *");
458 llvm::Value *
Zero = llvm::ConstantInt::get(CGF.
PtrDiffTy, 0);
459 llvm::Value *IdxEnd[] = {
Zero,
Size };
460 llvm::Value *ArrayEnd = Builder.CreateInBoundsGEP(
466 assert(++Field ==
Record->field_end() &&
467 "Expected std::initializer_list to only have two fields");
476 if (isa<ImplicitValueInitExpr>(
E))
479 if (
auto *ILE = dyn_cast<InitListExpr>(
E)) {
480 if (ILE->getNumInits())
485 if (
auto *Cons = dyn_cast_or_null<CXXConstructExpr>(
E))
486 return Cons->getConstructor()->isDefaultConstructor() &&
487 Cons->getConstructor()->isTrivial();
495void AggExprEmitter::EmitArrayInit(
Address DestPtr, llvm::ArrayType *AType,
498 uint64_t NumInitElements = Args.size();
500 uint64_t NumArrayElements = AType->getNumElements();
501 for (
const auto *
Init : Args) {
502 if (
const auto *Embed = dyn_cast<EmbedExpr>(
Init->IgnoreParenImpCasts())) {
503 NumInitElements += Embed->getDataElementCount() - 1;
504 if (NumInitElements > NumArrayElements) {
505 NumInitElements = NumArrayElements;
511 assert(NumInitElements <= NumArrayElements);
523 if (NumInitElements * elementSize.
getQuantity() > 16 &&
531 if (llvm::Constant *
C =
532 Emitter.tryEmitForInitializer(ExprToVisit, AS, GVArrayQTy)) {
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, GVArrayQTy));
553 CodeGenFunction::CleanupDeactivationScope deactivation(CGF);
557 CodeGenFunction::AllocaTrackerRAII allocaTracker(CGF);
562 llvm::Instruction *dominatingIP =
563 Builder.CreateFlagLoad(llvm::ConstantInt::getNullValue(CGF.
Int8PtrTy));
565 "arrayinit.endOfInit");
566 Builder.CreateStore(begin, endOfInit);
571 .AddAuxAllocas(allocaTracker.Take());
577 llvm::Value *one = llvm::ConstantInt::get(CGF.
SizeTy, 1);
580 llvm::Value *element = begin;
581 if (ArrayIndex > 0) {
582 element = Builder.CreateInBoundsGEP(
583 llvmElementType, begin,
584 llvm::ConstantInt::get(CGF.
SizeTy, ArrayIndex),
"arrayinit.element");
590 Builder.CreateStore(element, endOfInit);
594 Address(element, llvmElementType, elementAlign), elementType);
595 EmitInitializationToLValue(
Init, elementLV);
599 unsigned ArrayIndex = 0;
601 for (uint64_t i = 0; i != NumInitElements; ++i) {
602 if (ArrayIndex >= NumInitElements)
604 if (
auto *EmbedS = dyn_cast<EmbedExpr>(Args[i]->IgnoreParenImpCasts())) {
605 EmbedS->doForEachDataElement(Emit, ArrayIndex);
607 Emit(Args[i], ArrayIndex);
618 if (NumInitElements != NumArrayElements &&
619 !(Dest.
isZeroed() && hasTrivialFiller &&
626 llvm::Value *element = begin;
627 if (NumInitElements) {
628 element = Builder.CreateInBoundsGEP(
629 llvmElementType, element,
630 llvm::ConstantInt::get(CGF.
SizeTy, NumInitElements),
632 if (endOfInit.
isValid()) Builder.CreateStore(element, endOfInit);
636 llvm::Value *end = Builder.CreateInBoundsGEP(
637 llvmElementType, begin,
638 llvm::ConstantInt::get(CGF.
SizeTy, NumArrayElements),
"arrayinit.end");
640 llvm::BasicBlock *entryBB = Builder.GetInsertBlock();
645 llvm::PHINode *currentElement =
646 Builder.CreatePHI(element->getType(), 2,
"arrayinit.cur");
647 currentElement->addIncoming(element, entryBB);
656 CodeGenFunction::RunCleanupsScope CleanupsScope(CGF);
658 Address(currentElement, llvmElementType, elementAlign), elementType);
660 EmitInitializationToLValue(ArrayFiller, elementLV);
662 EmitNullInitializationToLValue(elementLV);
666 llvm::Value *nextElement = Builder.CreateInBoundsGEP(
667 llvmElementType, currentElement, one,
"arrayinit.next");
670 if (endOfInit.
isValid()) Builder.CreateStore(nextElement, endOfInit);
673 llvm::Value *done = Builder.CreateICmpEQ(nextElement, end,
676 Builder.CreateCondBr(done, endBB, bodyBB);
677 currentElement->addIncoming(nextElement, Builder.GetInsertBlock());
688 Visit(
E->getSubExpr());
705 EmitAggLoadOfLValue(
E);
731 if (
auto castE = dyn_cast<CastExpr>(op)) {
732 if (castE->getCastKind() == kind)
733 return castE->getSubExpr();
738void AggExprEmitter::VisitCastExpr(
CastExpr *
E) {
739 if (
const auto *ECE = dyn_cast<ExplicitCastExpr>(
E))
741 switch (
E->getCastKind()) {
744 assert(isa<CXXDynamicCastExpr>(
E) &&
"CK_Dynamic without a dynamic_cast?");
746 CodeGenFunction::TCK_Load);
769 EmitInitializationToLValue(
E->getSubExpr(),
774 case CK_LValueToRValueBitCast: {
784 llvm::Value *SizeVal = llvm::ConstantInt::get(
787 Builder.CreateMemCpy(DestAddress, SourceAddress, SizeVal);
791 case CK_DerivedToBase:
792 case CK_BaseToDerived:
793 case CK_UncheckedDerivedToBase: {
794 llvm_unreachable(
"cannot perform hierarchy conversion in EmitAggExpr: "
795 "should have been unpacked before we got here");
798 case CK_NonAtomicToAtomic:
799 case CK_AtomicToNonAtomic: {
800 bool isToAtomic = (
E->getCastKind() == CK_NonAtomicToAtomic);
805 if (isToAtomic) std::swap(
atomicType, valueType);
814 return Visit(
E->getSubExpr());
818 (isToAtomic ? CK_AtomicToNonAtomic : CK_NonAtomicToAtomic);
825 "peephole significantly changed types?");
863 return EmitFinalDestCopy(valueType, rvalue);
865 case CK_AddressSpaceConversion:
866 return Visit(
E->getSubExpr());
868 case CK_LValueToRValue:
878 Visit(
E->getSubExpr());
889 case CK_HLSLArrayRValue:
890 Visit(
E->getSubExpr());
894 case CK_UserDefinedConversion:
895 case CK_ConstructorConversion:
898 "Implicit cast types must be compatible");
899 Visit(
E->getSubExpr());
902 case CK_LValueBitCast:
903 llvm_unreachable(
"should not be emitting lvalue bitcast as rvalue");
907 case CK_ArrayToPointerDecay:
908 case CK_FunctionToPointerDecay:
909 case CK_NullToPointer:
910 case CK_NullToMemberPointer:
911 case CK_BaseToDerivedMemberPointer:
912 case CK_DerivedToBaseMemberPointer:
913 case CK_MemberPointerToBoolean:
914 case CK_ReinterpretMemberPointer:
915 case CK_IntegralToPointer:
916 case CK_PointerToIntegral:
917 case CK_PointerToBoolean:
920 case CK_IntegralCast:
921 case CK_BooleanToSignedIntegral:
922 case CK_IntegralToBoolean:
923 case CK_IntegralToFloating:
924 case CK_FloatingToIntegral:
925 case CK_FloatingToBoolean:
926 case CK_FloatingCast:
927 case CK_CPointerToObjCPointerCast:
928 case CK_BlockPointerToObjCPointerCast:
929 case CK_AnyPointerToBlockPointerCast:
930 case CK_ObjCObjectLValueCast:
931 case CK_FloatingRealToComplex:
932 case CK_FloatingComplexToReal:
933 case CK_FloatingComplexToBoolean:
934 case CK_FloatingComplexCast:
935 case CK_FloatingComplexToIntegralComplex:
936 case CK_IntegralRealToComplex:
937 case CK_IntegralComplexToReal:
938 case CK_IntegralComplexToBoolean:
939 case CK_IntegralComplexCast:
940 case CK_IntegralComplexToFloatingComplex:
941 case CK_ARCProduceObject:
942 case CK_ARCConsumeObject:
943 case CK_ARCReclaimReturnedObject:
944 case CK_ARCExtendBlockObject:
945 case CK_CopyAndAutoreleaseBlockObject:
946 case CK_BuiltinFnToFnPtr:
947 case CK_ZeroToOCLOpaqueType:
949 case CK_HLSLVectorTruncation:
951 case CK_IntToOCLSampler:
952 case CK_FloatingToFixedPoint:
953 case CK_FixedPointToFloating:
954 case CK_FixedPointCast:
955 case CK_FixedPointToBoolean:
956 case CK_FixedPointToIntegral:
957 case CK_IntegralToFixedPoint:
958 llvm_unreachable(
"cast kind invalid for aggregate types");
962void AggExprEmitter::VisitCallExpr(
const CallExpr *
E) {
963 if (
E->getCallReturnType(CGF.
getContext())->isReferenceType()) {
964 EmitAggLoadOfLValue(
E);
984void AggExprEmitter::VisitStmtExpr(
const StmtExpr *
E) {
985 CodeGenFunction::StmtExprEvaluation eval(CGF);
998 const char *NameSuffix =
"") {
1001 ArgTy = CT->getElementType();
1005 "member pointers may only be compared for equality");
1007 CGF, LHS, RHS, MPT,
false);
1011 struct CmpInstInfo {
1013 llvm::CmpInst::Predicate FCmp;
1014 llvm::CmpInst::Predicate SCmp;
1015 llvm::CmpInst::Predicate UCmp;
1017 CmpInstInfo InstInfo = [&]() -> CmpInstInfo {
1018 using FI = llvm::FCmpInst;
1019 using II = llvm::ICmpInst;
1022 return {
"cmp.lt", FI::FCMP_OLT, II::ICMP_SLT, II::ICMP_ULT};
1024 return {
"cmp.gt", FI::FCMP_OGT, II::ICMP_SGT, II::ICMP_UGT};
1026 return {
"cmp.eq", FI::FCMP_OEQ, II::ICMP_EQ, II::ICMP_EQ};
1028 llvm_unreachable(
"Unrecognised CompareKind enum");
1032 return Builder.CreateFCmp(InstInfo.FCmp, LHS, RHS,
1033 llvm::Twine(InstInfo.Name) + NameSuffix);
1037 return Builder.CreateICmp(Inst, LHS, RHS,
1038 llvm::Twine(InstInfo.Name) + NameSuffix);
1041 llvm_unreachable(
"unsupported aggregate binary expression should have "
1042 "already been handled");
1046 using llvm::BasicBlock;
1047 using llvm::PHINode;
1054 "cannot copy non-trivially copyable aggregate");
1066 auto EmitOperand = [&](
Expr *
E) -> std::pair<Value *, Value *> {
1075 auto LHSValues = EmitOperand(
E->getLHS()),
1076 RHSValues = EmitOperand(
E->getRHS());
1080 K, IsComplex ?
".r" :
"");
1085 RHSValues.second, K,
".i");
1086 return Builder.CreateAnd(Cmp, CmpImag,
"and.eq");
1089 return Builder.getInt(VInfo->getIntValue());
1097 Builder.CreateSelect(EmitCmp(
CK_Less), EmitCmpRes(CmpInfo.
getLess()),
1099 Select = Builder.CreateSelect(EmitCmp(
CK_Equal),
1101 SelectOne,
"sel.eq");
1103 Value *SelectEq = Builder.CreateSelect(
1108 SelectEq,
"sel.gt");
1109 Select = Builder.CreateSelect(
1110 EmitCmp(
CK_Less), EmitCmpRes(CmpInfo.
getLess()), SelectGT,
"sel.lt");
1126 if (
E->getOpcode() == BO_PtrMemD ||
E->getOpcode() == BO_PtrMemI)
1127 VisitPointerToDataMemberBinaryOperator(
E);
1132void AggExprEmitter::VisitPointerToDataMemberBinaryOperator(
1135 EmitFinalDestCopy(
E->
getType(), LV);
1145 if (
const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(
E)) {
1146 const VarDecl *var = dyn_cast<VarDecl>(DRE->getDecl());
1147 return (var && var->hasAttr<BlocksAttr>());
1156 if (op->isAssignmentOp() || op->isPtrMemOp())
1160 if (op->getOpcode() == BO_Comma)
1168 = dyn_cast<AbstractConditionalOperator>(
E)) {
1174 = dyn_cast<OpaqueValueExpr>(
E)) {
1175 if (
const Expr *src = op->getSourceExpr())
1183 if (
cast->getCastKind() == CK_LValueToRValue)
1189 }
else if (
const UnaryOperator *uop = dyn_cast<UnaryOperator>(
E)) {
1193 }
else if (
const MemberExpr *mem = dyn_cast<MemberExpr>(
E)) {
1209 &&
"Invalid assignment");
1218 EnsureDest(
E->getRHS()->
getType());
1246 EnsureDest(
E->getRHS()->
getType());
1264 EmitFinalDestCopy(
E->
getType(), LHS);
1272void AggExprEmitter::
1279 CodeGenFunction::OpaqueValueMapping binding(CGF,
E);
1281 CodeGenFunction::ConditionalEvaluation eval(CGF);
1287 bool destructNonTrivialCStruct =
1288 !isExternallyDestructed &&
1290 isExternallyDestructed |= destructNonTrivialCStruct;
1299 Visit(
E->getTrueExpr());
1302 assert(CGF.
HaveInsertPoint() &&
"expression evaluation ended with no IP!");
1303 CGF.
Builder.CreateBr(ContBlock);
1315 Visit(
E->getFalseExpr());
1318 if (destructNonTrivialCStruct)
1327void AggExprEmitter::VisitChooseExpr(
const ChooseExpr *CE) {
1331void AggExprEmitter::VisitVAArgExpr(
VAArgExpr *VE) {
1351 Visit(
E->getSubExpr());
1354 if (!wasExternallyDestructed)
1364void AggExprEmitter::VisitCXXInheritedCtorInitExpr(
1368 E->getConstructor(),
E->constructsVBase(), Slot.
getAddress(),
1369 E->inheritedFromVBase(),
E);
1379 CodeGenFunction::CleanupDeactivationScope scope(CGF);
1383 e =
E->capture_init_end();
1384 i != e; ++i, ++CurField) {
1387 if (CurField->hasCapturedVLAType()) {
1392 EmitInitializationToLValue(*i, LV);
1396 CurField->getType().isDestructedType()) {
1400 CurField->getType(),
1407 CodeGenFunction::RunCleanupsScope cleanups(CGF);
1408 Visit(
E->getSubExpr());
1430 case CK_UserDefinedConversion:
1431 case CK_ConstructorConversion:
1437 case CK_BooleanToSignedIntegral:
1438 case CK_FloatingCast:
1439 case CK_FloatingComplexCast:
1440 case CK_FloatingComplexToBoolean:
1441 case CK_FloatingComplexToIntegralComplex:
1442 case CK_FloatingComplexToReal:
1443 case CK_FloatingRealToComplex:
1444 case CK_FloatingToBoolean:
1445 case CK_FloatingToIntegral:
1446 case CK_IntegralCast:
1447 case CK_IntegralComplexCast:
1448 case CK_IntegralComplexToBoolean:
1449 case CK_IntegralComplexToFloatingComplex:
1450 case CK_IntegralComplexToReal:
1451 case CK_IntegralRealToComplex:
1452 case CK_IntegralToBoolean:
1453 case CK_IntegralToFloating:
1455 case CK_IntegralToPointer:
1456 case CK_PointerToIntegral:
1458 case CK_VectorSplat:
1460 case CK_NonAtomicToAtomic:
1461 case CK_AtomicToNonAtomic:
1462 case CK_HLSLVectorTruncation:
1465 case CK_BaseToDerivedMemberPointer:
1466 case CK_DerivedToBaseMemberPointer:
1467 case CK_MemberPointerToBoolean:
1468 case CK_NullToMemberPointer:
1469 case CK_ReinterpretMemberPointer:
1473 case CK_AnyPointerToBlockPointerCast:
1474 case CK_BlockPointerToObjCPointerCast:
1475 case CK_CPointerToObjCPointerCast:
1476 case CK_ObjCObjectLValueCast:
1477 case CK_IntToOCLSampler:
1478 case CK_ZeroToOCLOpaqueType:
1482 case CK_FixedPointCast:
1483 case CK_FixedPointToBoolean:
1484 case CK_FixedPointToFloating:
1485 case CK_FixedPointToIntegral:
1486 case CK_FloatingToFixedPoint:
1487 case CK_IntegralToFixedPoint:
1491 case CK_AddressSpaceConversion:
1492 case CK_BaseToDerived:
1493 case CK_DerivedToBase:
1495 case CK_NullToPointer:
1496 case CK_PointerToBoolean:
1501 case CK_ARCConsumeObject:
1502 case CK_ARCExtendBlockObject:
1503 case CK_ARCProduceObject:
1504 case CK_ARCReclaimReturnedObject:
1505 case CK_CopyAndAutoreleaseBlockObject:
1506 case CK_ArrayToPointerDecay:
1507 case CK_FunctionToPointerDecay:
1508 case CK_BuiltinFnToFnPtr:
1510 case CK_LValueBitCast:
1511 case CK_LValueToRValue:
1512 case CK_LValueToRValueBitCast:
1513 case CK_UncheckedDerivedToBase:
1514 case CK_HLSLArrayRValue:
1517 llvm_unreachable(
"Unhandled clang::CastKind enum");
1525 while (
auto *CE = dyn_cast<CastExpr>(
E)) {
1533 return IL->getValue() == 0;
1536 return FL->getValue().isPosZero();
1538 if ((isa<ImplicitValueInitExpr>(
E) || isa<CXXScalarValueInitExpr>(
E)) &&
1542 if (
const CastExpr *ICE = dyn_cast<CastExpr>(
E))
1543 return ICE->getCastKind() == CK_NullToPointer &&
1548 return CL->getValue() == 0;
1556AggExprEmitter::EmitInitializationToLValue(
Expr *
E,
LValue LV) {
1563 }
else if (isa<ImplicitValueInitExpr>(
E) || isa<CXXScalarValueInitExpr>(
E)) {
1564 return EmitNullInitializationToLValue(LV);
1565 }
else if (isa<NoInitExpr>(
E)) {
1568 }
else if (
type->isReferenceType()) {
1592 llvm_unreachable(
"bad evaluation kind");
1595void AggExprEmitter::EmitNullInitializationToLValue(
LValue lv) {
1623 VisitCXXParenListOrInitListExpr(
E,
E->getInitExprs(),
1624 E->getInitializedFieldInUnion(),
1625 E->getArrayFiller());
1629 if (
E->hadArrayRangeDesignator())
1632 if (
E->isTransparent())
1633 return Visit(
E->getInit(0));
1635 VisitCXXParenListOrInitListExpr(
1636 E,
E->inits(),
E->getInitializedFieldInUnion(),
E->getArrayFiller());
1639void AggExprEmitter::VisitCXXParenListOrInitListExpr(
1648 if (llvm::Constant *
C =
1649 CGF.
CGM.EmitConstantExpr(ExprToVisit, ExprToVisit->
getType(), &CGF)) {
1650 llvm::GlobalVariable* GV =
1651 new llvm::GlobalVariable(CGF.
CGM.
getModule(),
C->getType(),
true,
1652 llvm::GlobalValue::InternalLinkage,
C,
"");
1653 EmitFinalDestCopy(ExprToVisit->
getType(),
1667 InitExprs, ArrayFiller);
1673 assert(InitExprs.size() == 0 &&
1674 "you can only use an empty initializer with VLAs");
1680 "Only support structs/unions here!");
1686 unsigned NumInitElements = InitExprs.size();
1692 CodeGenFunction::CleanupDeactivationScope DeactivateCleanups(CGF);
1694 unsigned curInitIndex = 0;
1697 if (
auto *CXXRD = dyn_cast<CXXRecordDecl>(record)) {
1698 assert(NumInitElements >= CXXRD->getNumBases() &&
1699 "missing initializer for base class");
1700 for (
auto &
Base : CXXRD->bases()) {
1701 assert(!
Base.isVirtual() &&
"should not see vbases here");
1702 auto *BaseRD =
Base.getType()->getAsCXXRecordDecl();
1712 CGF.
EmitAggExpr(InitExprs[curInitIndex++], AggSlot);
1715 Base.getType().isDestructedType())
1721 CodeGenFunction::FieldConstructionScope FCS(CGF, Dest.
getAddress());
1726 if (!InitializedFieldInUnion) {
1732 for (
const auto *Field : record->
fields())
1734 (
Field->isUnnamedBitField() ||
Field->isAnonymousStructOrUnion()) &&
1735 "Only unnamed bitfields or anonymous class allowed");
1744 if (NumInitElements) {
1746 EmitInitializationToLValue(InitExprs[0], FieldLoc);
1749 EmitNullInitializationToLValue(FieldLoc);
1757 for (
const auto *field : record->
fields()) {
1759 if (field->getType()->isIncompleteArrayType())
1763 if (field->isUnnamedBitField())
1769 if (curInitIndex == NumInitElements && Dest.
isZeroed() &&
1778 if (curInitIndex < NumInitElements) {
1780 EmitInitializationToLValue(InitExprs[curInitIndex++], LV);
1783 EmitNullInitializationToLValue(LV);
1790 = field->getType().isDestructedType()) {
1802 llvm::Value *outerBegin) {
1804 CodeGenFunction::OpaqueValueMapping binding(CGF,
E->getCommonExpr());
1807 uint64_t numElements =
E->getArraySize().getZExtValue();
1813 llvm::Value *zero = llvm::ConstantInt::get(CGF.
SizeTy, 0);
1814 llvm::Value *indices[] = {zero, zero};
1815 llvm::Value *begin = Builder.CreateInBoundsGEP(destPtr.
getElementType(),
1817 indices,
"arrayinit.begin");
1832 llvm::BasicBlock *entryBB = Builder.GetInsertBlock();
1837 llvm::PHINode *index =
1838 Builder.CreatePHI(zero->getType(), 2,
"arrayinit.index");
1839 index->addIncoming(zero, entryBB);
1840 llvm::Value *element =
1841 Builder.CreateInBoundsGEP(llvmElementType, begin, index);
1847 if (outerBegin->getType() != element->getType())
1848 outerBegin = Builder.CreateBitCast(outerBegin, element->getType());
1861 CodeGenFunction::RunCleanupsScope CleanupsScope(CGF);
1862 CodeGenFunction::ArrayInitLoopExprScope
Scope(CGF, index);
1864 Address(element, llvmElementType, elementAlign), elementType);
1872 AggExprEmitter(CGF, elementSlot,
false)
1873 .VisitArrayInitLoopExpr(InnerLoop, outerBegin);
1875 EmitInitializationToLValue(
E->getSubExpr(), elementLV);
1879 llvm::Value *nextIndex = Builder.CreateNUWAdd(
1880 index, llvm::ConstantInt::get(CGF.
SizeTy, 1),
"arrayinit.next");
1881 index->addIncoming(nextIndex, Builder.GetInsertBlock());
1884 llvm::Value *done = Builder.CreateICmpEQ(
1885 nextIndex, llvm::ConstantInt::get(CGF.
SizeTy, numElements),
1888 Builder.CreateCondBr(done, endBB, bodyBB);
1901 EmitInitializationToLValue(
E->getBase(), DestLV);
1902 VisitInitListExpr(
E->getUpdater());
1913 if (
auto *MTE = dyn_cast<MaterializeTemporaryExpr>(
E))
1914 E = MTE->getSubExpr();
1924 ILE = dyn_cast<InitListExpr>(ILE->
getInit(0));
1932 if (!RT->isUnionType()) {
1936 unsigned ILEElement = 0;
1937 if (
auto *CXXRD = dyn_cast<CXXRecordDecl>(SD))
1938 while (ILEElement != CXXRD->getNumBases())
1941 for (
const auto *Field : SD->
fields()) {
1944 if (Field->getType()->isIncompleteArrayType() ||
1947 if (Field->isUnnamedBitField())
1953 if (Field->getType()->isReferenceType())
1960 return NumNonZeroBytes;
1966 for (
unsigned i = 0, e = ILE->
getNumInits(); i != e; ++i)
1968 return NumNonZeroBytes;
1985 const CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl());
1998 if (NumNonZeroBytes*4 > Size)
2002 llvm::Constant *SizeVal = CGF.
Builder.getInt64(Size.getQuantity());
2020 "Invalid aggregate expression to emit");
2022 "slot has bits but no address");
2027 AggExprEmitter(*
this, Slot, Slot.
isIgnored()).Visit(
const_cast<Expr*
>(
E));
2044 return AggExprEmitter(*
this, Dest, Dest.
isIgnored())
2045 .EmitFinalDestCopy(
Type, Src, SrcKind);
2080 getContext().getASTRecordLayout(BaseRD).getSize() <=
2099 assert((
Record->hasTrivialCopyConstructor() ||
2100 Record->hasTrivialCopyAssignment() ||
2101 Record->hasTrivialMoveConstructor() ||
2102 Record->hasTrivialMoveAssignment() ||
2103 Record->hasAttr<TrivialABIAttr>() ||
Record->isUnion()) &&
2104 "Trying to aggregate-copy a type without a trivial copy/move "
2105 "constructor or assignment operator");
2114 if (
getTargetHooks().emitCUDADeviceBuiltinSurfaceDeviceCopy(*
this, Dest,
2118 if (
getTargetHooks().emitCUDADeviceBuiltinTextureDeviceCopy(*
this, Dest,
2144 llvm::Value *SizeVal =
nullptr;
2147 if (
auto *VAT = dyn_cast_or_null<VariableArrayType>(
2153 SizeVal =
Builder.CreateNUWMul(
2183 if (
Record->hasObjectMember()) {
2205 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.
llvm::MachO::Record Record
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>.
QualType removeAddrSpaceQualType(QualType T) const
Remove any existing address space on the type and returns the type with qualifiers intact (or that's ...
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.
QualType getAddrSpaceQualType(QualType T, LangAS AddressSpace) const
Return the uniqued reference to the type for an address space qualified type with the specified type ...
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...
Represents a loop initializing the elements of an array.
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.
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.
Represents a list-initialization with parenthesis.
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.
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]).
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.
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.
Like RawAddress, an abstract representation of an aligned address, but the pointer contained in this ...
llvm::Value * emitRawPointer(CodeGenFunction &CGF) const
Return the pointer contained in this class after authenticating it and adding offset to it if necessa...
CharUnits getAlignment() const
llvm::Type * getElementType() const
Return the type of the values stored in this address.
Address withElementType(llvm::Type *ElemTy) const
Return address with different element type, but same pointer and alignment.
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.
NeedsGCBarriers_t requiresGCollection() const
void setExternallyDestructed(bool destructed=true)
void setZeroed(bool V=true)
IsZeroed_t isZeroed() const
Qualifiers getQualifiers() const
static AggValueSlot forLValue(const LValue &LV, IsDestructed_t isDestructed, NeedsGCBarriers_t needsGC, IsAliased_t isAliased, Overlap_t mayOverlap, IsZeroed_t isZeroed=IsNotZeroed, IsSanitizerChecked_t isChecked=IsNotSanitizerChecked)
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
llvm::Value * emitRawPointer(CodeGenFunction &CGF) const
A scoped helper to set the current debug location to the specified location or preferred location of ...
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)
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.
void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, llvm::BasicBlock *FalseBlock, uint64_t TrueCount, Stmt::Likelihood LH=Stmt::LH_None, const Expr *ConditionalOp=nullptr)
EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g.
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)
llvm::SmallVector< DeferredDeactivateCleanup > DeferredDeactivationCleanupStack
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.
void pushDestroyAndDeferDeactivation(QualType::DestructionKind dtorKind, Address addr, QualType type)
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.
RawAddress CreateMemTemp(QualType T, const Twine &Name="tmp", RawAddress *Alloca=nullptr)
CreateMemTemp - Create a temporary memory object of the given type, with appropriate alignmen and cas...
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.
AggValueSlot CreateAggTemp(QualType T, const Twine &Name="tmp", RawAddress *Alloca=nullptr)
CreateAggTemp - Create a temporary memory object for the given aggregate 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 EmitVAArg(VAArgExpr *VE, Address &VAListAddr, AggValueSlot Slot=AggValueSlot::ignored())
Generate code to get an argument from the passed in pointer and update it accordingly.
RValue EmitPseudoObjectRValue(const PseudoObjectExpr *e, AggValueSlot slot=AggValueSlot::ignored())
ASTContext & getContext() const
void EmitAggFinalDestCopy(QualType Type, AggValueSlot Dest, const LValue &Src, ExprValueKind SrcKind)
EmitAggFinalDestCopy - Emit copy of the specified aggregate into destination address.
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)
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)
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.
LangAS GetGlobalConstantAddressSpace() const
Return the AST address space of constant literal, which is used to emit the constant literal as globa...
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.
iterator find(stable_iterator save) const
Turn a stable reference to a scope depth into a unstable pointer to the EH stack.
LValue - This represents an lvalue references.
Address getAddress() 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.
llvm::Value * getAggregatePointer(QualType PointeeType, CodeGenFunction &CGF) const
static RValue get(llvm::Value *V)
static RValue getAggregate(Address addr, bool isVolatile=false)
Convert an Address to an RValue.
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.
An abstract representation of an aligned address.
llvm::Value * getPointer() const
static RawAddress invalid()
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].
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.
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 parentheses and casts which do not change the value (including ptr->int casts of the sa...
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.
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,...
unsigned getNumInits() const
const Expr * getInit(unsigned Init) const
A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked l...
Expr *const * const_capture_init_iterator
Const iterator that walks over the capture initialization arguments.
Represents a prvalue temporary that is written into memory so that a reference can bind to it.
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 parenthesized 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;}).
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...
uint64_t getPointerWidth(LangAS AddrSpace) const
Return the width of pointers on this target, for the specified address space.
The base class of the type hierarchy.
bool isConstantArrayType() const
bool isPointerType() const
const T * castAs() const
Member-template castAs<specific type>.
bool isVariableArrayType() 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),...
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)
The JSON file list parser is used to communicate input to InstallAPI.
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.
const FunctionProtoType * T
U cast(CodeGen::Address addr)
Diagnostic wrappers for TextAPI types for error reporting.
cl::opt< bool > EnableSingleByteCoverage
llvm::IntegerType * Int8Ty
i8, i16, i32, and i64
llvm::IntegerType * SizeTy
llvm::PointerType * Int8PtrTy
llvm::IntegerType * PtrDiffTy
CharUnits getPointerAlign() const