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| author | rdivacky <rdivacky@FreeBSD.org> | 2010-03-16 16:52:15 +0000 |
|---|---|---|
| committer | rdivacky <rdivacky@FreeBSD.org> | 2010-03-16 16:52:15 +0000 |
| commit | 1033b7c1e32962948b01a25145829f17bc70a8de (patch) | |
| tree | 52aebaff3a47b97dbac434530524c30967468412 /lib/AST/RecordLayoutBuilder.h | |
| parent | 27c39af73c0d7d0b97e57b3a905040d4cefc9708 (diff) | |
| download | FreeBSD-src-1033b7c1e32962948b01a25145829f17bc70a8de.zip FreeBSD-src-1033b7c1e32962948b01a25145829f17bc70a8de.tar.gz | |
Update clang to r98631.
Diffstat (limited to 'lib/AST/RecordLayoutBuilder.h')
| -rw-r--r-- | lib/AST/RecordLayoutBuilder.h | 58 |
1 files changed, 32 insertions, 26 deletions
diff --git a/lib/AST/RecordLayoutBuilder.h b/lib/AST/RecordLayoutBuilder.h index d4171d3..a4bce75 100644 --- a/lib/AST/RecordLayoutBuilder.h +++ b/lib/AST/RecordLayoutBuilder.h @@ -56,21 +56,28 @@ class ASTRecordLayoutBuilder { uint64_t NonVirtualSize; unsigned NonVirtualAlignment; + /// PrimaryBase - the primary base class (if one exists) of the class + /// we're laying out. ASTRecordLayout::PrimaryBaseInfo PrimaryBase; - typedef llvm::SmallVector<std::pair<const CXXRecordDecl *, - uint64_t>, 4> BaseOffsetsTy; + /// Bases - base classes and their offsets in the record. + ASTRecordLayout::BaseOffsetsMapTy Bases; - /// Bases - base classes and their offsets from the record. - BaseOffsetsTy Bases; - - // VBases - virtual base classes and their offsets from the record. - BaseOffsetsTy VBases; + // VBases - virtual base classes and their offsets in the record. + ASTRecordLayout::BaseOffsetsMapTy VBases; /// IndirectPrimaryBases - Virtual base classes, direct or indirect, that are /// primary base classes for some other direct or indirect base class. llvm::SmallSet<const CXXRecordDecl*, 32> IndirectPrimaryBases; + /// FirstNearlyEmptyVBase - The first nearly empty virtual base class in + /// inheritance graph order. Used for determining the primary base class. + const CXXRecordDecl *FirstNearlyEmptyVBase; + + /// VisitedVirtualBases - A set of all the visited virtual bases, used to + /// avoid visiting virtual bases more than once. + llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBases; + /// EmptyClassOffsets - A map from offsets to empty record decls. typedef std::multimap<uint64_t, const CXXRecordDecl *> EmptyClassOffsetsTy; EmptyClassOffsetsTy EmptyClassOffsets; @@ -86,33 +93,35 @@ class ASTRecordLayoutBuilder { void LayoutField(const FieldDecl *D); void LayoutBitField(const FieldDecl *D); - void SelectPrimaryBase(const CXXRecordDecl *RD); - void SelectPrimaryVBase(const CXXRecordDecl *RD, - const CXXRecordDecl *&FirstPrimary); + /// DeterminePrimaryBase - Determine the primary base of the given class. + void DeterminePrimaryBase(const CXXRecordDecl *RD); + + void SelectPrimaryVBase(const CXXRecordDecl *RD); /// IdentifyPrimaryBases - Identify all virtual base classes, direct or /// indirect, that are primary base classes for some other direct or indirect /// base class. void IdentifyPrimaryBases(const CXXRecordDecl *RD); - void setPrimaryBase(const CXXRecordDecl *Base, bool IsVirtual) { - PrimaryBase = ASTRecordLayout::PrimaryBaseInfo(Base, IsVirtual); - } - bool IsNearlyEmpty(const CXXRecordDecl *RD) const; + /// LayoutNonVirtualBases - Determines the primary base class (if any) and + /// lays it out. Will then proceed to lay out all non-virtual base clasess. + void LayoutNonVirtualBases(const CXXRecordDecl *RD); + + /// LayoutNonVirtualBase - Lays out a single non-virtual base. + void LayoutNonVirtualBase(const CXXRecordDecl *RD); + + /// LayoutVirtualBases - Lays out all the virtual bases. + void LayoutVirtualBases(const CXXRecordDecl *RD, uint64_t Offset, + const CXXRecordDecl *MostDerivedClass); + + /// LayoutVirtualBase - Lays out a single virtual base. + void LayoutVirtualBase(const CXXRecordDecl *RD); + /// LayoutBase - Will lay out a base and return the offset where it was /// placed, in bits. uint64_t LayoutBase(const CXXRecordDecl *RD); - - void LayoutVtable(const CXXRecordDecl *RD); - void LayoutNonVirtualBases(const CXXRecordDecl *RD); - void LayoutBaseNonVirtually(const CXXRecordDecl *RD, bool IsVBase); - void LayoutVirtualBase(const CXXRecordDecl *RD); - void LayoutVirtualBases(const CXXRecordDecl *Class, const CXXRecordDecl *RD, - const CXXRecordDecl *PB, uint64_t Offset, - llvm::SmallSet<const CXXRecordDecl*, 32> &mark, - llvm::SmallSet<const CXXRecordDecl*, 32> &IndirectPrimary); /// canPlaceRecordAtOffset - Return whether a record (either a base class /// or a field) can be placed at the given offset. @@ -134,9 +143,6 @@ class ASTRecordLayoutBuilder { /// given offset. void UpdateEmptyClassOffsets(const FieldDecl *FD, uint64_t Offset); - /// getBaseOffset - Get the offset of a direct base class. - uint64_t getBaseOffset(const CXXRecordDecl *Base); - /// FinishLayout - Finalize record layout. Adjust record size based on the /// alignment. void FinishLayout(); |
