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245 Commits

Author SHA1 Message Date
Anders Carlsson d7d358a65e Even more work on empty classes. 
llvm-svn: 82770
 2009-09-25 15:39:00 +00:00
Anders Carlsson e1883100a3 Who would have thought that empty classes were so tricky? Handle cases where an empty virtual base class needs to be moved aside because it conflicts with the first field. 
llvm-svn: 82746
 2009-09-25 01:54:38 +00:00
Anders Carlsson 4bf82141e7 Handle array fields that contain empty structs. 
llvm-svn: 82744
 2009-09-25 01:23:32 +00:00
Anders Carlsson 6f95c705ea More work on empty classes. 
llvm-svn: 82736
 2009-09-25 00:02:51 +00:00
Anders Carlsson bb66bc8e84 More improvements with laying out empty bases. 
llvm-svn: 82682
 2009-09-24 05:21:31 +00:00
Anders Carlsson f24b18fb06 More work on empty classes. 
llvm-svn: 82679
 2009-09-24 03:22:10 +00:00
Anders Carlsson 6522b05db7 Scaffolding for supporting empty bases/fields. 
llvm-svn: 82678
 2009-09-24 03:13:30 +00:00
Anders Carlsson 55640546e4 If we already set a primary base, don't set it to the first nearly empty base class. 
llvm-svn: 82563
 2009-09-22 19:16:59 +00:00
Anders Carlsson 96cff1fc10 Explicitly initialize the PrimaryBase and PrimaryBaseWasVirtual members. 
llvm-svn: 82560
 2009-09-22 18:21:58 +00:00
Mike Stump 865715442e Yes. 
llvm-svn: 82559
 2009-09-22 17:38:02 +00:00
Anders Carlsson 8143069417 Store the set of indirect primary bases directly in the record layout builder. 
llvm-svn: 82513
 2009-09-22 03:02:06 +00:00
Anders Carlsson d6020c321a Record layout builder cleanup. 
llvm-svn: 82502
 2009-09-22 00:04:45 +00:00
Anders Carlsson 93b6d5e85e Temporary band-aid for handling empty classes somewhat better. 
llvm-svn: 82124
 2009-09-17 04:42:56 +00:00
Mike Stump 11289f4280 Remove tabs, and whitespace cleanups. 
llvm-svn: 81346
 2009-09-09 15:08:12 +00:00
Mike Stump 996576f3aa Refine vbase offset calculations. WIP. 
llvm-svn: 79198
 2009-08-16 19:04:13 +00:00
Mike Stump 22ea1f8a30 Cleanups and fixups for calculating the virtual base offsets. WIP. 
llvm-svn: 79156
 2009-08-16 01:46:26 +00:00
Mike Stump bcf756cbac Deconflate virtual base offsets from non-virtual base offsets. 
Deconflate a virtual base primary from a non-virtual base.

llvm-svn: 78971
 2009-08-14 01:44:03 +00:00
Mike Stump 590a7c780c We can't avoid doing the work to find all the indirect primary virtual 
base classes as we'll need that to layout the virtual bases...

llvm-svn: 78954
 2009-08-13 23:26:06 +00:00
Mike Stump c2f591b1e6 Refine vtable layout for virtual bases and keep better track of 
primaries.  WIP.

llvm-svn: 78950
 2009-08-13 22:53:07 +00:00
Mike Stump 1300754fdd Prep for vbase layout refinements. WIP. 
llvm-svn: 78882
 2009-08-13 02:02:14 +00:00
Mike Stump 6bb66bbd06 Refine virtual base layout. WIP. 
llvm-svn: 78873
 2009-08-13 00:34:14 +00:00
Mike Stump cb2752bb5d Remove another done audit FIXME. 
llvm-svn: 78847
 2009-08-12 22:10:00 +00:00
Mike Stump aa08da7906 Refactor a bit and remove some FIXME audit markers, now that the code 
has been audited for correctness.

llvm-svn: 78846
 2009-08-12 22:06:55 +00:00
Mike Stump 6f3793b406 Refine primary vbase selection ordering. WIP. 
llvm-svn: 78844
 2009-08-12 21:50:08 +00:00
Mike Stump 78696a70bf Implement more of the inductive case for vtable layout involving 
virtual base primaries and improve the layout of classes with virtual
bases.  WIP.

Hey, I've decided I want a change to FileCheck, I need to ensure that
the group is together, nothing in between.  Can we change it to check
the match line is from the line immediately following the last matched
line, if the source for the matched line is immediately after the
source for the previously matched line?

// CHECK: 1
// CHECK: 2
// CHECK: 3

// CHECK: 4
// CHECK: 5
// CHECK: 6

would require 1 2 and 3 to be continuous in the output, and 4 5 and 6
to be continuous.

llvm-svn: 78638
 2009-08-11 04:03:59 +00:00
Anders Carlsson 28a5fa29f3 Take #pragma pack into account when laying out structs. Fixes rdar://problem/7095436. 
llvm-svn: 78490
 2009-08-08 19:38:24 +00:00
Anders Carlsson 68e0b68289 Introduce a new PragmaPack attribute, and use it for #pragma pack. The PackedAttr now only represents __attribute__((packed)). 
This is necessary because #pragma pack and __attribute__((packed)) have different semantics. No functionality change yet, but this lays the groundwork for fixing a record layout bug.

llvm-svn: 78483
 2009-08-08 18:23:56 +00:00
Mike Stump c266c6d797 Add ability to generate vcall offsets for primary virtual base. 
llvm-svn: 78396
 2009-08-07 19:00:50 +00:00
Mike Stump 6b2556f829 Layout virtual bases. Work in progress. 
llvm-svn: 78308
 2009-08-06 13:41:24 +00:00
Mike Stump e9c85a7f58 Fix spell-o. 
llvm-svn: 78303
 2009-08-06 12:52:13 +00:00
Mike Stump 2509480813 Fixup object layout when we have a primary base (it goes first). Start preping for 
virtual base layout.

llvm-svn: 78265
 2009-08-06 00:38:46 +00:00
Mike Stump d8fe7b2792 Calculate the primary base class better and use that when laying down 
the vtable.  Still a work in progress.

llvm-svn: 78252
 2009-08-05 22:37:18 +00:00
Mike Stump bc78a728ee Add code to setup the vtable pointer in the constructor. Work in progress. 
llvm-svn: 77699
 2009-07-31 18:25:34 +00:00
Mike Stump 57724c2f7e Update based upon comments. Explain why we have an assert. 
llvm-svn: 77612
 2009-07-30 18:01:44 +00:00
Mike Stump 44b8e90369 We'll also need a vtable pointer if we have virtual bases. 
llvm-svn: 77610
 2009-07-30 17:53:53 +00:00
Mike Stump 3dc7eb9440 Add ability to layout the vtable pointer in trivial cases. I noticed 
that we would silently do bad things with virtual bases in the layout
code, so, we just turn them off.  When people do better things with
them, we can turn them back on.

llvm-svn: 77556
 2009-07-30 00:22:38 +00:00
Ted Kremenek c23c7e6a51 Change uses of: 
Type::getAsReferenceType() -> Type::getAs<ReferenceType>()
  Type::getAsRecordType() -> Type::getAs<RecordType>()
  Type::getAsPointerType() -> Type::getAs<PointerType>()
  Type::getAsBlockPointerType() -> Type::getAs<BlockPointerType>()
  Type::getAsLValueReferenceType() -> Type::getAs<LValueReferenceType>()
  Type::getAsRValueReferenceType() -> Type::getAs<RValueReferenceType>()
  Type::getAsMemberPointerType() -> Type::getAs<MemberPointerType>()
  Type::getAsReferenceType() -> Type::getAs<ReferenceType>()
  Type::getAsTagType() -> Type::getAs<TagType>()
  
And remove Type::getAsReferenceType(), etc.

This change is similar to one I made a couple weeks ago, but that was partly
reverted pending some additional design discussion. With Doug's pending smart
pointer changes for Types, it seemed natural to take this approach.

llvm-svn: 77510
 2009-07-29 21:53:49 +00:00
Fariborz Jahanian 7be1ad814b No longer need to keep base class offsets in the offset 
table as it has its own place now.

llvm-svn: 77491
 2009-07-29 18:50:06 +00:00
Anders Carlsson fc8cfa8b9f Add a field for C++ specific data to ASTRecordLayout. Use it to store the non-virtual size and alignment + base offsets. 
llvm-svn: 77352
 2009-07-28 19:24:15 +00:00
Fariborz Jahanian dedf1e4b1a ir-gen for non-virtual base class initialization 
in constructors.

llvm-svn: 77087
 2009-07-25 21:12:28 +00:00
Anders Carlsson 6d9f6f326d Handle layout of non-virtual base classes. 
llvm-svn: 76348
 2009-07-19 00:18:47 +00:00
Anders Carlsson 118ce16bf5 Refactor field layout into a separate function. 
llvm-svn: 76343
 2009-07-18 21:48:39 +00:00
Anders Carlsson 27b50135ee Rename NextOffset to DataSize, which better matches the Itanium C++ ABI 
llvm-svn: 76339
 2009-07-18 21:26:44 +00:00
Anders Carlsson 4f51628b02 More layout builder work. 
llvm-svn: 76333
 2009-07-18 20:50:59 +00:00
Anders Carlsson 7947433411 Add a new ASTRecordLayoutBuilder class. Not used yet. 
llvm-svn: 76330
 2009-07-18 20:20:21 +00:00