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llvm-svn: 100991
This commit is contained in:
Anders Carlsson 2010-04-11 22:07:06 +00:00
parent b41c633a34
commit d78b224e91
1 changed files with 46 additions and 46 deletions
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92
clang/lib/CodeGen/CGVTables.cpp
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@ -1142,17 +1142,17 @@ private:
/// method.
const uint64_t BaseOffsetInLayoutClass;
/// VtableIndex - The index in the vtable that this method has.
/// VTableIndex - The index in the vtable that this method has.
/// (For destructors, this is the index of the complete destructor).
const uint64_t VtableIndex;
const uint64_t VTableIndex;
MethodInfo(uint64_t BaseOffset, uint64_t BaseOffsetInLayoutClass,
uint64_t VtableIndex)
uint64_t VTableIndex)
: BaseOffset(BaseOffset),
BaseOffsetInLayoutClass(BaseOffsetInLayoutClass),
VtableIndex(VtableIndex) { }
VTableIndex(VTableIndex) { }
MethodInfo() : BaseOffset(0), BaseOffsetInLayoutClass(0), VtableIndex(0) { }
MethodInfo() : BaseOffset(0), BaseOffsetInLayoutClass(0), VTableIndex(0) { }
};
typedef llvm::DenseMap<const CXXMethodDecl *, MethodInfo> MethodInfoMapTy;
@ -1161,11 +1161,11 @@ private:
/// currently building.
MethodInfoMapTy MethodInfoMap;
typedef llvm::DenseMap<uint64_t, ThunkInfo> VtableThunksMapTy;
typedef llvm::DenseMap<uint64_t, ThunkInfo> VTableThunksMapTy;
/// VTableThunks - The thunks by vtable index in the vtable currently being
/// built.
VtableThunksMapTy VTableThunks;
VTableThunksMapTy VTableThunks;
typedef llvm::SmallVector<ThunkInfo, 1> ThunkInfoVectorTy;
typedef llvm::DenseMap<const CXXMethodDecl *, ThunkInfoVectorTy> ThunksMapTy;
@ -1240,25 +1240,25 @@ private:
uint64_t FirstBaseOffsetInLayoutClass,
PrimaryBasesSetVectorTy &PrimaryBases);
// LayoutVtable - Layout the vtable for the given base class, including its
// LayoutVTable - Layout the vtable for the given base class, including its
// secondary vtables and any vtables for virtual bases.
void LayoutVtable();
void LayoutVTable();
/// LayoutPrimaryAndSecondaryVtables - Layout the primary vtable for the
/// LayoutPrimaryAndSecondaryVTables - Layout the primary vtable for the
/// given base subobject, as well as all its secondary vtables.
///
/// \param BaseIsVirtualInLayoutClass - Whether the base subobject is virtual
/// in the layout class.
void LayoutPrimaryAndSecondaryVtables(BaseSubobject Base,
void LayoutPrimaryAndSecondaryVTables(BaseSubobject Base,
bool BaseIsVirtualInLayoutClass,
uint64_t OffsetInLayoutClass);
/// LayoutSecondaryVtables - Layout the secondary vtables for the given base
/// LayoutSecondaryVTables - Layout the secondary vtables for the given base
/// subobject.
///
/// \param BaseIsMorallyVirtual whether the base subobject is a virtual base
/// or a direct or indirect base of a virtual base.
void LayoutSecondaryVtables(BaseSubobject Base, bool BaseIsMorallyVirtual,
void LayoutSecondaryVTables(BaseSubobject Base, bool BaseIsMorallyVirtual,
uint64_t OffsetInLayoutClass);
/// DeterminePrimaryVirtualBases - Determine the primary virtual bases in this
@ -1267,14 +1267,14 @@ private:
uint64_t OffsetInLayoutClass,
VisitedVirtualBasesSetTy &VBases);
/// LayoutVtablesForVirtualBases - Layout vtables for all virtual bases of the
/// LayoutVTablesForVirtualBases - Layout vtables for all virtual bases of the
/// given base (excluding any primary bases).
void LayoutVtablesForVirtualBases(const CXXRecordDecl *RD,
void LayoutVTablesForVirtualBases(const CXXRecordDecl *RD,
VisitedVirtualBasesSetTy &VBases);
/// isBuildingConstructionVtable - Return whether this vtable builder is
/// isBuildingConstructionVTable - Return whether this vtable builder is
/// building a construction vtable.
bool isBuildingConstructorVtable() const {
bool isBuildingConstructorVTable() const {
return MostDerivedClass != LayoutClass;
}
@ -1288,7 +1288,7 @@ public:
LayoutClass(LayoutClass), Context(MostDerivedClass->getASTContext()),
Overriders(MostDerivedClass, MostDerivedClassOffset, LayoutClass) {
LayoutVtable();
LayoutVTable();
}
ThunksMapTy::const_iterator thunks_begin() const {
@ -1325,11 +1325,11 @@ public:
return AddressPoints.end();
}
VtableThunksMapTy::const_iterator vtable_thunks_begin() const {
VTableThunksMapTy::const_iterator vtable_thunks_begin() const {
return VTableThunks.begin();
}
VtableThunksMapTy::const_iterator vtable_thunks_end() const {
VTableThunksMapTy::const_iterator vtable_thunks_end() const {
return VTableThunks.end();
}
@ -1338,7 +1338,7 @@ public:
};
void VTableBuilder::AddThunk(const CXXMethodDecl *MD, const ThunkInfo &Thunk) {
assert(!isBuildingConstructorVtable() &&
assert(!isBuildingConstructorVTable() &&
"Can't add thunks for construction vtable");
llvm::SmallVector<ThunkInfo, 1> &ThunksVector = Thunks[MD];
@ -1379,8 +1379,8 @@ void VTableBuilder::ComputeThisAdjustments() {
const MethodInfo &MethodInfo = I->second;
// Ignore adjustments for unused function pointers.
uint64_t VtableIndex = MethodInfo.VtableIndex;
if (Components[VtableIndex].getKind() ==
uint64_t VTableIndex = MethodInfo.VTableIndex;
if (Components[VTableIndex].getKind() ==
VTableComponent::CK_UnusedFunctionPointer)
continue;
@ -1396,7 +1396,7 @@ void VTableBuilder::ComputeThisAdjustments() {
// While the thunk itself might be needed by vtables in subclasses or
// in construction vtables, there doesn't seem to be a reason for using
// the thunk in this vtable. Still, we do so to match gcc.
if (VTableThunks.lookup(VtableIndex).Return.isEmpty())
if (VTableThunks.lookup(VTableIndex).Return.isEmpty())
continue;
}
@ -1407,23 +1407,23 @@ void VTableBuilder::ComputeThisAdjustments() {
continue;
// Add it.
VTableThunks[VtableIndex].This = ThisAdjustment;
VTableThunks[VTableIndex].This = ThisAdjustment;
if (isa<CXXDestructorDecl>(MD)) {
// Add an adjustment for the deleting destructor as well.
VTableThunks[VtableIndex + 1].This = ThisAdjustment;
VTableThunks[VTableIndex + 1].This = ThisAdjustment;
}
}
/// Clear the method info map.
MethodInfoMap.clear();
if (isBuildingConstructorVtable()) {
if (isBuildingConstructorVTable()) {
// We don't need to store thunk information for construction vtables.
return;
}
for (VtableThunksMapTy::const_iterator I = VTableThunks.begin(),
for (VTableThunksMapTy::const_iterator I = VTableThunks.begin(),
E = VTableThunks.end(); I != E; ++I) {
const VTableComponent &Component = Components[I->first];
const ThunkInfo &Thunk = I->second;
@ -1779,7 +1779,7 @@ VTableBuilder::AddMethods(BaseSubobject Base, uint64_t BaseOffsetInLayoutClass,
MethodInfo MethodInfo(Base.getBaseOffset(),
BaseOffsetInLayoutClass,
OverriddenMethodInfo.VtableIndex);
OverriddenMethodInfo.VTableIndex);
assert(!MethodInfoMap.count(MD) &&
"Should not have method info for this method yet!");
@ -1791,7 +1791,7 @@ VTableBuilder::AddMethods(BaseSubobject Base, uint64_t BaseOffsetInLayoutClass,
// or indirect base class of a virtual base class, we need to emit a
// thunk if we ever have a class hierarchy where the base class is not
// a primary base in the complete object.
if (!isBuildingConstructorVtable() && OverriddenMD != MD) {
if (!isBuildingConstructorVTable() && OverriddenMD != MD) {
// Compute the this adjustment.
ThisAdjustment ThisAdjustment =
ComputeThisAdjustment(OverriddenMD, BaseOffsetInLayoutClass,
@ -1837,8 +1837,8 @@ VTableBuilder::AddMethods(BaseSubobject Base, uint64_t BaseOffsetInLayoutClass,
}
}
void VTableBuilder::LayoutVtable() {
LayoutPrimaryAndSecondaryVtables(BaseSubobject(MostDerivedClass, 0),
void VTableBuilder::LayoutVTable() {
LayoutPrimaryAndSecondaryVTables(BaseSubobject(MostDerivedClass, 0),
MostDerivedClassIsVirtual,
MostDerivedClassOffset);
@ -1849,11 +1849,11 @@ void VTableBuilder::LayoutVtable() {
VBases);
VBases.clear();
LayoutVtablesForVirtualBases(MostDerivedClass, VBases);
LayoutVTablesForVirtualBases(MostDerivedClass, VBases);
}
void
VTableBuilder::LayoutPrimaryAndSecondaryVtables(BaseSubobject Base,
VTableBuilder::LayoutPrimaryAndSecondaryVTables(BaseSubobject Base,
bool BaseIsVirtualInLayoutClass,
uint64_t OffsetInLayoutClass) {
assert(Base.getBase()->isDynamicClass() && "class does not have a vtable!");
@ -1925,14 +1925,14 @@ VTableBuilder::LayoutPrimaryAndSecondaryVtables(BaseSubobject Base,
}
bool BaseIsMorallyVirtual = BaseIsVirtualInLayoutClass;
if (isBuildingConstructorVtable() && Base.getBase() == MostDerivedClass)
if (isBuildingConstructorVTable() && Base.getBase() == MostDerivedClass)
BaseIsMorallyVirtual = false;
// Layout secondary vtables.
LayoutSecondaryVtables(Base, BaseIsMorallyVirtual, OffsetInLayoutClass);
LayoutSecondaryVTables(Base, BaseIsMorallyVirtual, OffsetInLayoutClass);
}
void VTableBuilder::LayoutSecondaryVtables(BaseSubobject Base,
void VTableBuilder::LayoutSecondaryVTables(BaseSubobject Base,
bool BaseIsMorallyVirtual,
uint64_t OffsetInLayoutClass) {
// Itanium C++ ABI 2.5.2:
@ -1957,7 +1957,7 @@ void VTableBuilder::LayoutSecondaryVtables(BaseSubobject Base,
if (!BaseDecl->isDynamicClass())
continue;
if (isBuildingConstructorVtable()) {
if (isBuildingConstructorVTable()) {
// Itanium C++ ABI 2.6.4:
// Some of the base class subobjects may not need construction virtual
// tables, which will therefore not be present in the construction
@ -1976,13 +1976,13 @@ void VTableBuilder::LayoutSecondaryVtables(BaseSubobject Base,
// Don't emit a secondary vtable for a primary base. We might however want
// to emit secondary vtables for other bases of this base.
if (BaseDecl == PrimaryBase) {
LayoutSecondaryVtables(BaseSubobject(BaseDecl, BaseOffset),
LayoutSecondaryVTables(BaseSubobject(BaseDecl, BaseOffset),
BaseIsMorallyVirtual, BaseOffsetInLayoutClass);
continue;
}
// Layout the primary vtable (and any secondary vtables) for this base.
LayoutPrimaryAndSecondaryVtables(BaseSubobject(BaseDecl, BaseOffset),
LayoutPrimaryAndSecondaryVTables(BaseSubobject(BaseDecl, BaseOffset),
/*BaseIsVirtualInLayoutClass=*/false,
BaseOffsetInLayoutClass);
}
@ -2001,7 +2001,7 @@ VTableBuilder::DeterminePrimaryVirtualBases(const CXXRecordDecl *RD,
if (Layout.getPrimaryBaseWasVirtual()) {
bool IsPrimaryVirtualBase = true;
if (isBuildingConstructorVtable()) {
if (isBuildingConstructorVTable()) {
// Check if the base is actually a primary base in the class we use for
// layout.
const ASTRecordLayout &LayoutClassLayout =
@ -2047,7 +2047,7 @@ VTableBuilder::DeterminePrimaryVirtualBases(const CXXRecordDecl *RD,
}
void
VTableBuilder::LayoutVtablesForVirtualBases(const CXXRecordDecl *RD,
VTableBuilder::LayoutVTablesForVirtualBases(const CXXRecordDecl *RD,
VisitedVirtualBasesSetTy &VBases) {
// Itanium C++ ABI 2.5.2:
// Then come the virtual base virtual tables, also in inheritance graph
@ -2072,7 +2072,7 @@ VTableBuilder::LayoutVtablesForVirtualBases(const CXXRecordDecl *RD,
uint64_t BaseOffsetInLayoutClass =
LayoutClassLayout.getVBaseClassOffset(BaseDecl);
LayoutPrimaryAndSecondaryVtables(BaseSubobject(BaseDecl, BaseOffset),
LayoutPrimaryAndSecondaryVTables(BaseSubobject(BaseDecl, BaseOffset),
/*BaseIsVirtual=*/true,
BaseOffsetInLayoutClass);
}
@ -2080,14 +2080,14 @@ VTableBuilder::LayoutVtablesForVirtualBases(const CXXRecordDecl *RD,
// We only need to check the base for virtual base vtables if it actually
// has virtual bases.
if (BaseDecl->getNumVBases())
LayoutVtablesForVirtualBases(BaseDecl, VBases);
LayoutVTablesForVirtualBases(BaseDecl, VBases);
}
}
/// dumpLayout - Dump the vtable layout.
void VTableBuilder::dumpLayout(llvm::raw_ostream& Out) {
if (isBuildingConstructorVtable()) {
if (isBuildingConstructorVTable()) {
Out << "Construction vtable for ('";
Out << MostDerivedClass->getQualifiedNameAsString() << "', ";
// FIXME: Don't use / 8 .
@ -2267,7 +2267,7 @@ void VTableBuilder::dumpLayout(llvm::raw_ostream& Out) {
Out << '\n';
if (isBuildingConstructorVtable())
if (isBuildingConstructorVTable())
return;
if (MostDerivedClass->getNumVBases()) {