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-rw-r--r--lib/AST/APValue.cpp93
1 files changed, 51 insertions, 42 deletions
diff --git a/lib/AST/APValue.cpp b/lib/AST/APValue.cpp
index 541836b21b70..0fa0216d9dac 100644
--- a/lib/AST/APValue.cpp
+++ b/lib/AST/APValue.cpp
@@ -34,7 +34,7 @@ namespace {
struct APValue::LV : LVBase {
static const unsigned InlinePathSpace =
- (MaxSize - sizeof(LVBase)) / sizeof(LValuePathEntry);
+ (DataSize - sizeof(LVBase)) / sizeof(LValuePathEntry);
/// Path - The sequence of base classes, fields and array indices to follow to
/// walk from Base to the subobject. When performing GCC-style folding, there
@@ -75,7 +75,7 @@ namespace {
struct APValue::MemberPointerData : MemberPointerBase {
static const unsigned InlinePathSpace =
- (MaxSize - sizeof(MemberPointerBase)) / sizeof(const CXXRecordDecl*);
+ (DataSize - sizeof(MemberPointerBase)) / sizeof(const CXXRecordDecl*);
typedef const CXXRecordDecl *PathElem;
union {
PathElem Path[InlinePathSpace];
@@ -117,7 +117,7 @@ APValue::StructData::~StructData() {
delete [] Elts;
}
-APValue::UnionData::UnionData() : Field(0), Value(new APValue) {}
+APValue::UnionData::UnionData() : Field(nullptr), Value(new APValue) {}
APValue::UnionData::~UnionData () {
delete Value;
}
@@ -136,7 +136,7 @@ APValue::APValue(const APValue &RHS) : Kind(Uninitialized) {
break;
case Vector:
MakeVector();
- setVector(((const Vec *)(const char *)RHS.Data)->Elts,
+ setVector(((const Vec *)(const char *)RHS.Data.buffer)->Elts,
RHS.getVectorLength());
break;
case ComplexInt:
@@ -188,27 +188,27 @@ APValue::APValue(const APValue &RHS) : Kind(Uninitialized) {
void APValue::DestroyDataAndMakeUninit() {
if (Kind == Int)
- ((APSInt*)(char*)Data)->~APSInt();
+ ((APSInt*)(char*)Data.buffer)->~APSInt();
else if (Kind == Float)
- ((APFloat*)(char*)Data)->~APFloat();
+ ((APFloat*)(char*)Data.buffer)->~APFloat();
else if (Kind == Vector)
- ((Vec*)(char*)Data)->~Vec();
+ ((Vec*)(char*)Data.buffer)->~Vec();
else if (Kind == ComplexInt)
- ((ComplexAPSInt*)(char*)Data)->~ComplexAPSInt();
+ ((ComplexAPSInt*)(char*)Data.buffer)->~ComplexAPSInt();
else if (Kind == ComplexFloat)
- ((ComplexAPFloat*)(char*)Data)->~ComplexAPFloat();
+ ((ComplexAPFloat*)(char*)Data.buffer)->~ComplexAPFloat();
else if (Kind == LValue)
- ((LV*)(char*)Data)->~LV();
+ ((LV*)(char*)Data.buffer)->~LV();
else if (Kind == Array)
- ((Arr*)(char*)Data)->~Arr();
+ ((Arr*)(char*)Data.buffer)->~Arr();
else if (Kind == Struct)
- ((StructData*)(char*)Data)->~StructData();
+ ((StructData*)(char*)Data.buffer)->~StructData();
else if (Kind == Union)
- ((UnionData*)(char*)Data)->~UnionData();
+ ((UnionData*)(char*)Data.buffer)->~UnionData();
else if (Kind == MemberPointer)
- ((MemberPointerData*)(char*)Data)->~MemberPointerData();
+ ((MemberPointerData*)(char*)Data.buffer)->~MemberPointerData();
else if (Kind == AddrLabelDiff)
- ((AddrLabelDiffData*)(char*)Data)->~AddrLabelDiffData();
+ ((AddrLabelDiffData*)(char*)Data.buffer)->~AddrLabelDiffData();
Kind = Uninitialized;
}
@@ -239,19 +239,20 @@ bool APValue::needsCleanup() const {
"same size.");
return getComplexIntReal().needsCleanup();
case LValue:
- return reinterpret_cast<const LV *>(Data)->hasPathPtr();
+ return reinterpret_cast<const LV *>(Data.buffer)->hasPathPtr();
case MemberPointer:
- return reinterpret_cast<const MemberPointerData *>(Data)->hasPathPtr();
+ return reinterpret_cast<const MemberPointerData *>(Data.buffer)
+ ->hasPathPtr();
}
llvm_unreachable("Unknown APValue kind!");
}
void APValue::swap(APValue &RHS) {
std::swap(Kind, RHS.Kind);
- char TmpData[MaxSize];
- memcpy(TmpData, Data, MaxSize);
- memcpy(Data, RHS.Data, MaxSize);
- memcpy(RHS.Data, TmpData, MaxSize);
+ char TmpData[DataSize];
+ memcpy(TmpData, Data.buffer, DataSize);
+ memcpy(Data.buffer, RHS.Data.buffer, DataSize);
+ memcpy(RHS.Data.buffer, TmpData, DataSize);
}
void APValue::dump() const {
@@ -402,8 +403,13 @@ void APValue::printPretty(raw_ostream &Out, ASTContext &Ctx, QualType Ty) const{
if (const ValueDecl *VD = Base.dyn_cast<const ValueDecl*>())
Out << *VD;
- else
- Base.get<const Expr*>()->printPretty(Out, 0, Ctx.getPrintingPolicy());
+ else {
+ assert(Base.get<const Expr *>() != nullptr &&
+ "Expecting non-null Expr");
+ Base.get<const Expr*>()->printPretty(Out, nullptr,
+ Ctx.getPrintingPolicy());
+ }
+
if (!O.isZero()) {
Out << " + " << (O / S);
if (IsReference)
@@ -424,12 +430,13 @@ void APValue::printPretty(raw_ostream &Out, ASTContext &Ctx, QualType Ty) const{
ElemTy = VD->getType();
} else {
const Expr *E = Base.get<const Expr*>();
- E->printPretty(Out, 0, Ctx.getPrintingPolicy());
+ assert(E != nullptr && "Expecting non-null Expr");
+ E->printPretty(Out, nullptr, Ctx.getPrintingPolicy());
ElemTy = E->getType();
}
ArrayRef<LValuePathEntry> Path = getLValuePath();
- const CXXRecordDecl *CastToBase = 0;
+ const CXXRecordDecl *CastToBase = nullptr;
for (unsigned I = 0, N = Path.size(); I != N; ++I) {
if (ElemTy->getAs<RecordType>()) {
// The lvalue refers to a class type, so the next path entry is a base
@@ -498,8 +505,7 @@ void APValue::printPretty(raw_ostream &Out, ASTContext &Ctx, QualType Ty) const{
First = false;
}
}
- for (RecordDecl::field_iterator FI = RD->field_begin();
- FI != RD->field_end(); ++FI) {
+ for (const auto *FI : RD->fields()) {
if (!First)
Out << ", ";
if (FI->isUnnamedBitfield()) continue;
@@ -546,39 +552,39 @@ std::string APValue::getAsString(ASTContext &Ctx, QualType Ty) const {
const APValue::LValueBase APValue::getLValueBase() const {
assert(isLValue() && "Invalid accessor");
- return ((const LV*)(const void*)Data)->BaseAndIsOnePastTheEnd.getPointer();
+ return ((const LV*)(const void*)Data.buffer)->BaseAndIsOnePastTheEnd.getPointer();
}
bool APValue::isLValueOnePastTheEnd() const {
assert(isLValue() && "Invalid accessor");
- return ((const LV*)(const void*)Data)->BaseAndIsOnePastTheEnd.getInt();
+ return ((const LV*)(const void*)Data.buffer)->BaseAndIsOnePastTheEnd.getInt();
}
CharUnits &APValue::getLValueOffset() {
assert(isLValue() && "Invalid accessor");
- return ((LV*)(void*)Data)->Offset;
+ return ((LV*)(void*)Data.buffer)->Offset;
}
bool APValue::hasLValuePath() const {
assert(isLValue() && "Invalid accessor");
- return ((const LV*)(const char*)Data)->hasPath();
+ return ((const LV*)(const char*)Data.buffer)->hasPath();
}
ArrayRef<APValue::LValuePathEntry> APValue::getLValuePath() const {
assert(isLValue() && hasLValuePath() && "Invalid accessor");
- const LV &LVal = *((const LV*)(const char*)Data);
+ const LV &LVal = *((const LV*)(const char*)Data.buffer);
return ArrayRef<LValuePathEntry>(LVal.getPath(), LVal.PathLength);
}
unsigned APValue::getLValueCallIndex() const {
assert(isLValue() && "Invalid accessor");
- return ((const LV*)(const char*)Data)->CallIndex;
+ return ((const LV*)(const char*)Data.buffer)->CallIndex;
}
void APValue::setLValue(LValueBase B, const CharUnits &O, NoLValuePath,
unsigned CallIndex) {
assert(isLValue() && "Invalid accessor");
- LV &LVal = *((LV*)(char*)Data);
+ LV &LVal = *((LV*)(char*)Data.buffer);
LVal.BaseAndIsOnePastTheEnd.setPointer(B);
LVal.BaseAndIsOnePastTheEnd.setInt(false);
LVal.Offset = O;
@@ -590,7 +596,7 @@ void APValue::setLValue(LValueBase B, const CharUnits &O,
ArrayRef<LValuePathEntry> Path, bool IsOnePastTheEnd,
unsigned CallIndex) {
assert(isLValue() && "Invalid accessor");
- LV &LVal = *((LV*)(char*)Data);
+ LV &LVal = *((LV*)(char*)Data.buffer);
LVal.BaseAndIsOnePastTheEnd.setPointer(B);
LVal.BaseAndIsOnePastTheEnd.setInt(IsOnePastTheEnd);
LVal.Offset = O;
@@ -601,39 +607,42 @@ void APValue::setLValue(LValueBase B, const CharUnits &O,
const ValueDecl *APValue::getMemberPointerDecl() const {
assert(isMemberPointer() && "Invalid accessor");
- const MemberPointerData &MPD = *((const MemberPointerData*)(const char*)Data);
+ const MemberPointerData &MPD =
+ *((const MemberPointerData *)(const char *)Data.buffer);
return MPD.MemberAndIsDerivedMember.getPointer();
}
bool APValue::isMemberPointerToDerivedMember() const {
assert(isMemberPointer() && "Invalid accessor");
- const MemberPointerData &MPD = *((const MemberPointerData*)(const char*)Data);
+ const MemberPointerData &MPD =
+ *((const MemberPointerData *)(const char *)Data.buffer);
return MPD.MemberAndIsDerivedMember.getInt();
}
ArrayRef<const CXXRecordDecl*> APValue::getMemberPointerPath() const {
assert(isMemberPointer() && "Invalid accessor");
- const MemberPointerData &MPD = *((const MemberPointerData*)(const char*)Data);
+ const MemberPointerData &MPD =
+ *((const MemberPointerData *)(const char *)Data.buffer);
return ArrayRef<const CXXRecordDecl*>(MPD.getPath(), MPD.PathLength);
}
void APValue::MakeLValue() {
assert(isUninit() && "Bad state change");
- assert(sizeof(LV) <= MaxSize && "LV too big");
- new ((void*)(char*)Data) LV();
+ static_assert(sizeof(LV) <= DataSize, "LV too big");
+ new ((void*)(char*)Data.buffer) LV();
Kind = LValue;
}
void APValue::MakeArray(unsigned InitElts, unsigned Size) {
assert(isUninit() && "Bad state change");
- new ((void*)(char*)Data) Arr(InitElts, Size);
+ new ((void*)(char*)Data.buffer) Arr(InitElts, Size);
Kind = Array;
}
void APValue::MakeMemberPointer(const ValueDecl *Member, bool IsDerivedMember,
ArrayRef<const CXXRecordDecl*> Path) {
assert(isUninit() && "Bad state change");
- MemberPointerData *MPD = new ((void*)(char*)Data) MemberPointerData;
+ MemberPointerData *MPD = new ((void*)(char*)Data.buffer) MemberPointerData;
Kind = MemberPointer;
MPD->MemberAndIsDerivedMember.setPointer(Member);
MPD->MemberAndIsDerivedMember.setInt(IsDerivedMember);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-18 11:06:49 +0000