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127 Commits

Author SHA1 Message Date
Anders Carlsson 6b0d914ad0 Rework the way virtual primary bases are added when laying out classes. Instead of doing it as a separate step, we now use the BaseSubobjectInfo and use it when laying out the bases. This fixes a bug where we would either not add a primary virtual base at all, or add it at the wrong offset. 
llvm-svn: 105110
 2010-05-29 19:44:50 +00:00
Anders Carlsson d6ff5d7787 Change LayoutVirtualBase to also take a BaseSubobjectInfo. 
llvm-svn: 105104
 2010-05-29 17:48:36 +00:00
Anders Carlsson bb0e6787b0 Change RecordLayoutBuilder::LayoutNonVirtualBase to take a BaseSubobjectInfo. No functionality change. 
llvm-svn: 105103
 2010-05-29 17:42:25 +00:00
Anders Carlsson e3c24c7033 Move computing the base subobject info for a class into the RecordLayoutBuilder because we're going to need it to be able to correctly add offsets for primary virtual bases. 
llvm-svn: 105102
 2010-05-29 17:35:14 +00:00
Anders Carlsson a7f3cdb0f2 Rename BaseInfo to BaseSubobjectInfo. 
llvm-svn: 105007
 2010-05-28 21:24:37 +00:00
Anders Carlsson 056818f8a2 Move BaseInfo outside of the EmptySubobject class. 
llvm-svn: 105002
 2010-05-28 21:13:31 +00:00
Anders Carlsson db319761e7 More work on the empty subobject map. This code is not yet used. 
llvm-svn: 104861
 2010-05-27 18:20:57 +00:00
Daniel Dunbar 6da1098b4b Sema: Add initial support for '#pragma options align=mac68k'. 
- Docs are fairly sketchy, if someone wants to pore through gcc to look for
   holes I'd appreciate any failing test cases!

llvm-svn: 104809
 2010-05-27 05:45:51 +00:00
Anders Carlsson 439edd1aea More work on the new empty subobject map. 
llvm-svn: 104808
 2010-05-27 05:41:06 +00:00
Daniel Dunbar 592a85c137 Strip trailing whitespace. 
llvm-svn: 104801
 2010-05-27 02:25:46 +00:00
Daniel Dunbar 401304462a AST: Rename PragmaPackAttr to MaxFieldAlignmentAttr, which is more accurate. 
llvm-svn: 104795
 2010-05-27 01:12:46 +00:00
Anders Carlsson c121b4e59f More work on the empty subobjects map. 
llvm-svn: 104787
 2010-05-27 00:07:01 +00:00
Anders Carlsson c5ca1f7799 Move ComputeEmptySubobjectSizes to EmptySubobjectMap. 
llvm-svn: 104702
 2010-05-26 15:54:25 +00:00
Anders Carlsson f58de11b61 Stub out the EmptySubobjectsMap class. 
llvm-svn: 104701
 2010-05-26 15:32:58 +00:00
Anders Carlsson ce7f77729a Inline the RecordLayoutBuilder constructor. 
llvm-svn: 104700
 2010-05-26 15:20:08 +00:00
Anders Carlsson c28a6c9251 Add a Layout overload that takes a CXXRecordDecl. 
llvm-svn: 104695
 2010-05-26 15:10:00 +00:00
Benjamin Kramer c7656cdf83 Move RecordLayoutBuilder into an anonymous namespace. 
llvm-svn: 104693
 2010-05-26 09:58:31 +00:00
Anders Carlsson c222620adf Rename ASTRecordLayoutBuilder to RecordLayoutBuilder. 
llvm-svn: 104688
 2010-05-26 05:58:59 +00:00
Anders Carlsson 35a36eb78d Move the ASTRecordLayoutBuilder class declaration into the .cpp file. 
llvm-svn: 104686
 2010-05-26 05:41:04 +00:00
Anders Carlsson b48414f4cb Fix thinko and remove another unused function. 
llvm-svn: 104683
 2010-05-26 05:31:23 +00:00
Anders Carlsson 1d1e4cf04d Fix build. 
llvm-svn: 104682
 2010-05-26 05:25:15 +00:00
Anders Carlsson d20e7cd3c6 No need to use the PrimaryBaseInfo struct in the builder. 
llvm-svn: 104681
 2010-05-26 05:20:58 +00:00
Anders Carlsson 87209bb54b Remove FIXME. 
llvm-svn: 104674
 2010-05-26 05:11:02 +00:00
Anders Carlsson d295486012 Fold the other Layout overload into its sole call site. 
llvm-svn: 104673
 2010-05-26 05:10:47 +00:00
Anders Carlsson 6ed3a9a494 Fold the ASTRecordLayoutBuilder::ComputeLayout overload that takes an ObjCInterfaceDecl pointer into its only callsite. 
llvm-svn: 104672
 2010-05-26 05:04:25 +00:00
Anders Carlsson df291d8d8b Move the relevant ASTContext member functions that deal with ASTRecordLayoutBuilder into RecordLayoutBuilder.cpp. This matches the way we interact with other builder classes (CGRecordLayoutBuilder, VTableBuilder and VTTBuilder) and it also allows for making ASTRecordLayoutBuilder a private class without a header file. 
llvm-svn: 104671
 2010-05-26 04:56:53 +00:00
Anders Carlsson 5773205a8d When recording empty subobjects we should always look at the primary virtual base. 
llvm-svn: 104464
 2010-05-23 18:14:24 +00:00
Anders Carlsson 5f1a1704a2 Add an UpdateVBases parameter to UpdateEmptyClassOffsets. Not used just yet. 
llvm-svn: 103403
 2010-05-10 15:28:59 +00:00
Anders Carlsson d626cb74d1 More work on handling empty classes. 
llvm-svn: 103402
 2010-05-10 15:26:14 +00:00
Anders Carlsson 82828a31f6 Cleanup. 
llvm-svn: 103370
 2010-05-09 05:03:38 +00:00
Anders Carlsson 15837f8f63 Actually compute the empty subobject sizes. No functionality change yet. 
llvm-svn: 103363
 2010-05-08 23:06:26 +00:00
Anders Carlsson 2357bfd9d0 Add a SizeOfLargestEmptySubobject member to ASTRecordLayout. For C++ classes this will hold the largest empty subobject or 0 if the class doesn't have any empty subobjects. 
llvm-svn: 103359
 2010-05-08 22:35:05 +00:00
Daniel Dunbar ccabe48235 AST: Dump ASTRecordLayout objects when they are created with -fdump-record-layouts. 
llvm-svn: 101815
 2010-04-19 20:44:53 +00:00
Dan Gohman 145f3f1e83 Fix -Wcast-qual warnings. 
llvm-svn: 101786
 2010-04-19 16:39:44 +00:00
Anders Carlsson aad5fa85d0 If a wide bit-field is inside a union its offset should always be 0. 
llvm-svn: 101668
 2010-04-17 20:21:41 +00:00
Benjamin Kramer b11416d061 Add raw_ostream operators to NamedDecl for convenience. Switch over all users of getNameAsString on a stream. 
The next step is to print the name directly into the stream, avoiding a temporary std::string copy.

llvm-svn: 101632
 2010-04-17 09:33:03 +00:00
Anders Carlsson d9abbe56a5 Remove printfs. 
llvm-svn: 101470
 2010-04-16 15:59:41 +00:00
Anders Carlsson 5723516ce9 More work on wide bit-fields, WIP. 
llvm-svn: 101467
 2010-04-16 15:57:11 +00:00
Anders Carlsson 5efc56e36b Rename the ASTContext member 'Context'. 
llvm-svn: 101462
 2010-04-16 15:07:51 +00:00
Anders Carlsson ea7b18298e Split adding the primary virtual base offsets out into a separate pass. This fixes a bug where we would lay out virtual bases in the wrong order. 
llvm-svn: 101373
 2010-04-15 16:12:58 +00:00
Daniel Dunbar 1da6511b99 Tweak spelling (Bitfield -> BitField) 
llvm-svn: 101369
 2010-04-15 15:06:18 +00:00
Daniel Dunbar 3d9289c736 Add TargetInfo::useBitfieldTypeAlignment(). 
- Used to determine whether the alignment of the type in a bit-field is
   respected when laying out structures. The default is true, targets can
   override this as needed.

 - This is designed to correspond to the PCC_BITFIELD_TYPE_MATTERS macro in
   gcc. The AST/Sema implementation only affects one line, unless I have
   forgotten something. I'd appreciate further review.

 - IRgen still needs to be updated to fully support this (which is effectively
   PR5591).

llvm-svn: 101356
 2010-04-15 06:18:39 +00:00
Daniel Dunbar fe53aaef51 Remove unnecessary cast. 
llvm-svn: 101176
 2010-04-13 20:52:05 +00:00
Anders Carlsson 7a148f7141 Fix another vbase layout bug. 
llvm-svn: 100952
 2010-04-10 21:35:33 +00:00
Anders Carlsson 5b441d73b7 Add a simple debug-only verification pass to the record layout builder. 
llvm-svn: 100951
 2010-04-10 21:24:48 +00:00
Anders Carlsson 291279e3a6 Simplify the virtual base layout code and fix a bug where we wouldn't store the offset for a virtual base. 
llvm-svn: 100940
 2010-04-10 18:42:27 +00:00
Daniel Dunbar aa423afffc AST: Move C++ record layout dumping to ASTContext::DumpRecordLayout. 
llvm-svn: 100746
 2010-04-08 02:59:49 +00:00
Anders Carlsson fe9009635d More record layout builder cleanup and simplification. 
llvm-svn: 98238
 2010-03-11 05:42:17 +00:00
Anders Carlsson de710c9125 Get rid of the PrimaryBase parameter from LayoutVirtualBases. 
llvm-svn: 98233
 2010-03-11 04:33:54 +00:00
Anders Carlsson f7b7a1e781 More cleanup towards fixing the real bug. 
llvm-svn: 98232
 2010-03-11 04:24:02 +00:00