lib/AST/RecordLayoutBuilder.cpp

56 /// Externally provided layout. Typically used when the AST source, such
585   /// Size - The current size of the record layout.
588   /// Alignment - The current alignment of the record layout.
599   /// Whether the external AST source has provided a layout for this
604   /// externally-provided layout.
758   /// InitializeLayout - Initialize record layout for the given record decl.
761   /// FinishLayout - Finalize record layout. Adjust record size based on the
812            "Cannot layout class with dependent bases.");
1134            "Cannot layout class with dependent bases.");
1186   // Query the external layout to see if it provides an offset.
1477   // The struct-layout algorithm is dictated by the platform ABI,
1480   // in the System V generic ABI.  The basic bitfield layout rule in
1490   // platform ABI's struct-layout algorithm, with the high-level goal
1491   // of duplicating MSVC's layout.  For non-bitfields, this follows
1492   // the standard algorithm.  The basic bitfield layout rule is to
1506   // e.g. ARM).  In ms_struct layout, zero-width bitfields are
1657   // If we're using external layout, give the external layout a chance
1674   // Diagnose differences in layout due to padding or packing.
1791       // If MS bitfield layout is required, figure out what type is being
1805           // with the layout rules for MS structs. This isn't an issue in
1814           // need to be able to sidestep the ms_struct layout for these types.
1986   // we have an externally-supplied layout that also provides overall alignment.
2175     //   layout if it is a POD type (in the sense of ISO C++
2179     //   bitfield is not a POD for the purpose of layout.  Similarly,
2180     //   an array type is not a POD for the purpose of layout if the
2182     //   layout.
2206 // This section contains an implementation of struct layout that is, up to the
2207 // included tests, compatible with cl.exe (2013).  The layout produced is
2215 // * There is no explicit primary base for the purposes of layout.  All bases
2223 //   due to the two-pass layout scheme for non-virtual-bases.
2255 //   layout of the so the leading base is not always the first one declared).
2284 //   greater due to __declspec(align()) then a second layout phase occurs after
2285 //   The locations of the vf and vb pointers are known.  This layout phase
2289 //   anything tries to read the vftbl.  The second layout phase also treats
2308   void layout(const RecordDecl *RD);
2312   /// Initialized C++ layout, compute alignment and virtual alignment and
2355   /// The non-virtual size of the record layout.
2357   /// The data size of the record layout.
2359   /// The current alignment of the record layout.
2406   /// True if the external AST source provided a layout for this record.
2409   /// The layout provided by the external AST source. Only active if
2475 void MicrosoftRecordLayoutBuilder::layout(const RecordDecl *RD) {
2476   // For C record layout, zero-sized records always have size 4.
2535   // Try to respect the external layout if present.
2616     // If this is the first layout, check to see if it leads with a zero sized
2794   // layout.
2822   // regular fields by the offset only if not using external record layout.
2837   // If we're using an external layout, the fields offsets have already
3019 /// getASTRecordLayout - Get or compute information about the layout of the
3033   assert(D && "Cannot get layout of forward declarations!");
3034   assert(!D->isInvalidDecl() && "Cannot get layout of invalid decl!");
3035   assert(D->isCompleteDefinition() && "Cannot layout type before complete!");
3037   // Look up this layout, if already laid out, return what we have.
3059       Builder.layout(D);
3073       // FIXME: this should be stored in the record layout.
3188   // look up in the implementation layout.
3198   // implemented. This should be fixed to get the information from the layout
3208   assert(Index < RL->getFieldCount() && "Ivar is not inside record layout!");
3213 /// getObjCLayout - Get or compute information about the layout of the
3216 /// \param Impl - If given, also include the layout of the interface's
3227   // Look up this layout, if already laid out, return what we have.
3330              "Cannot layout class with dependent bases.");
3438   // layout-override testing code.  There shouldn't be any external
3439   // uses of this format --- when LLDB overrides a layout, it sets up