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Author SHA1 Message Date
Daniel Dunbar
9252ee1779 Compute interface instanceStart and instanceSize using the record 
layout.
 - This is much simpler / more efficient.

 - This also properly computes the size in the presence of bit-fields.

llvm-svn: 70916
 2009-05-04 21:26:30 +00:00
Daniel Dunbar
98ba964e5c Don't allow clients to traverse into superclass synthesized properties 
via CollectObjCIvars.
 - In places where we need them, we should have the implementation and
   access the properties through it.

This is a fairly substantial functionality change: 
 1. @encode no longer encodes synthesized ivars, ever.

 2. The ivar layout bitmap no longer encodes information for
    synthesized ivars in superclasses. Well, actually I had already
    broken that, but it is intentional now.

We are now differing substantially from llvm-gcc and gcc
here. However, in my opinion this fundamentally *must* work if
non-fragile classes are to work. Without this change, the result of
@encode and the ivar layout depend on the order that the
implementation is seen in a file (if it is in the same file with its
superclass). Since both scenarios should work the same, our behavior
is now consistent with gcc behavior as if an implementation is never
seen following an implementation of its superclass.

Note that #2 is only a functionality change when (A) an
implementation appears in the same translation unit with the
implementation of its superclass, and (B) the superclass has
synthesized ivars. My belief is that this situation does not occur in
practice.

I am not yet sure of the role/semantics of @encode when synthesized
ivars are present... it's use is fairly unsound in a non-fragile world.

llvm-svn: 70822
 2009-05-04 04:10:48 +00:00
Daniel Dunbar
62b1070fa2 Inline GetFieldBaseOffset into sole callsite. 
llvm-svn: 70813
 2009-05-03 23:35:23 +00:00
Daniel Dunbar
5b743915c3 Avoid recomputing field offsets. 
llvm-svn: 70812
 2009-05-03 23:31:46 +00:00
Daniel Dunbar
d22aa4a5e5 Normalize formatting 
llvm-svn: 70810
 2009-05-03 23:21:22 +00:00
Daniel Dunbar
36e2a1eea3 Use the implementation decl for looking up offset while building the 
ivar layout.
 - The layout needs access to synthesized ivars.

llvm-svn: 70798
 2009-05-03 21:05:10 +00:00
Daniel Dunbar
3434d492b3 It turns out BuildAggrIvarLayout wasn't even using the shadow struct, 
just computing it!

llvm-svn: 70779
 2009-05-03 14:22:14 +00:00
Daniel Dunbar
94f46dc056 Lift common subexpression, remove dead "base" variable. 
llvm-svn: 70778
 2009-05-03 14:17:18 +00:00
Daniel Dunbar
15bd88860c Factor out BuildAggrIvarRecordLayout routine. 
llvm-svn: 70777
 2009-05-03 14:10:34 +00:00
Daniel Dunbar
7abf83cc86 Lift out GetGCAttrTypeForType routine. 
llvm-svn: 70776
 2009-05-03 13:55:09 +00:00
Daniel Dunbar
7b89ace186 Add constructors for GC_IVAR and SKIP_SCAN, tighten up uses. 
Lift up a size calculation and note some asymmetries.

llvm-svn: 70775
 2009-05-03 13:44:42 +00:00
Daniel Dunbar
22007d345f Normalize style, remove a dead assert. 
llvm-svn: 70771
 2009-05-03 13:32:01 +00:00
Daniel Dunbar
80b4eef686 Use ASTRecordLayout for computing ivar offsets instead of shadow 
struct.
 - We still need to do more lookup than necessary because ivars don't
   live in a reasonable DeclContext.

 - The only remaining client of the interface shadow struct is the
   ivar layout bitmap.

llvm-svn: 70756
 2009-05-03 13:15:50 +00:00
Daniel Dunbar
961202372f Add a ComputeIvarBaseOffset overload taking an implementation 
decl. Only this routine will be suitable for computing the offset of a
synthesized ivar.
 - No functionality change.

llvm-svn: 70696
 2009-05-03 12:57:56 +00:00
Daniel Dunbar
12119b959b Compute Objective-C metadata size information from the record layout, 
not the shadow structure.

llvm-svn: 70691
 2009-05-03 10:46:44 +00:00
Daniel Dunbar
ccf6183687 Remove unused argument. 
llvm-svn: 70684
 2009-05-03 08:56:52 +00:00
Daniel Dunbar
0cec95f86a Coalesce the ivar offset calculation further. 
llvm-svn: 70683
 2009-05-03 08:55:17 +00:00
Daniel Dunbar
d09551a376 Use type from ivar instead of from shadow struct field. 
- No functionality change.

llvm-svn: 70674
 2009-05-03 07:52:00 +00:00
Fariborz Jahanian
e29b4f0785 Remove a warning when this file is compiled optimized. 
llvm-svn: 70518
 2009-04-30 23:08:58 +00:00
Fariborz Jahanian
18c435a17d API for message dispatch of methods returning floats 
to match gcc's closely.

llvm-svn: 70493
 2009-04-30 16:31:11 +00:00
Fariborz Jahanian
4b4ef86369 Undid setting of the flag for msg_Send for 32bit code gen. 
It seems to effect code gen. Add a FIXME instead.

llvm-svn: 70423
 2009-04-29 22:47:27 +00:00
Fariborz Jahanian
e55f8660be Export lazy references of .objc_class_name of class names 
referenced in a category implementation meta-data
(Next objc 32bit abi).

llvm-svn: 70407
 2009-04-29 20:40:05 +00:00
Fariborz Jahanian
e27b929809 Type of msgSend message dispatch API is a vararg. 
llvm-svn: 70404
 2009-04-29 19:14:43 +00:00
Eli Friedman
1c4a175aef Remove getIntegerConstantExprValue in favor of using EvaluateAsInt. 
llvm-svn: 70145
 2009-04-26 19:19:15 +00:00
Chris Lattner
f0b64d73a8 split ObjC and C++ Statements out into their own headers. 
llvm-svn: 70105
 2009-04-26 01:32:48 +00:00
Fariborz Jahanian
969bc68195 Minor refactoring. No intended change in behavior. 
llvm-svn: 69988
 2009-04-24 21:07:43 +00:00
Fariborz Jahanian
ce567657fd Minor refactoring. No change in functionality. 
llvm-svn: 69979
 2009-04-24 17:15:27 +00:00
Fariborz Jahanian
a123b64218 Some code clean up of objc2's bitmap layout. 
llvm-svn: 69970
 2009-04-24 16:17:09 +00:00
Fariborz Jahanian
80672fce8f Removed bunch of FIXMEs no longer needed. 
llvm-svn: 69896
 2009-04-23 16:27:20 +00:00
Daniel Dunbar
f0a8344bac Mark IMAGE_INFO as constant on x86_64-darwin. 
- This shouldn't change anything, we never actually access it, but
   this is consistent with llvm-gcc (and 32-bit)

llvm-svn: 69880
 2009-04-23 08:03:21 +00:00
Daniel Dunbar
22b0ada8cf Use std::sort instead of qsort. 
- Notably, there was a memory error here, SkipIvars does not have to
   be the same size as IvarsInfo.

 - Fariborz, please check.

llvm-svn: 69850
 2009-04-23 01:29:05 +00:00
Douglas Gregor
29bd76fd04 Eliminate the three SmallVectors in ObjCImplDecl (for instance 
methods, class methods, and property implementations) and instead
place all of these entities into the DeclContext.

This eliminates more linear walks when looking for class or instance
methods and should make PCH (de-)serialization of ObjCDecls trivial
(and lazy).

llvm-svn: 69849
 2009-04-23 01:02:12 +00:00
Fariborz Jahanian
6df69867c3 ivar layout bitmap is alive! 
llvm-svn: 69838
 2009-04-22 23:00:43 +00:00
Daniel Dunbar
e4f25b706b Reapply r69771, with updates & fixes: 
Rework the shadow struct that is layed out for Objective-C classes.

 - Superclasses are now always laid out in their shadow structure at
   the first field.

 - Prior to this, the entire class heirarchy was flattened into a
   single structure which meant that alignment, padding, and bitfields
   were incorrect (the ASTRecordLayout was correct however, which
   meant our debug info didn't coincide with ivar offsets, for
   example).

 - This is still very suboptimal (for example, ivar are looked up
   recursively, but I believe the ivar layout itself is now at least
   close to correct.

 - <rdar://problem/6773388> error: objc[29823]: layout bitmap sliding
   backwards

llvm-svn: 69811
 2009-04-22 17:43:55 +00:00
Daniel Dunbar
202f3dc5b3 Remove lookupFieldDeclFromIvar from ObjCIvarDecl interface. 
- This is only used by CGObjCRuntime now.

llvm-svn: 69800
 2009-04-22 12:00:04 +00:00
Daniel Dunbar
7d4e1c5e4a Don't convert interface types (to structs) as part of CodeGenTypes. 
- This has pros and cons, but for now the pros seem to significantly
   outway the con.

The con is that we will always need to cast in the runtime
implementation to a struct type, if we wish to access an interface
directly.

The pros are:
 - Avoid the cost of generating types which are used. Most
   manipulation of Objective-C objects is done through messages, and
   only the implementation of a class will directly access
   memory. Previously, we would convert the type even if it only
   appear as a function parameter, for example.

 - We don't need to worry about incomplete types, and
   UpdateCompletedType for interfaces is gone.

 - It becomes easier to narrow the interface to the shadow struct for
   Objective-C interfaces (so it can be eliminated).

Currently the runtimes still use the CodeGenTypes machinery to
generate the LLVM structure they need via ConvertTagDecl, but this can
eventually be replaced.

llvm-svn: 69797
 2009-04-22 10:28:39 +00:00
Daniel Dunbar
7b4dfc8b78 Add CGObjCRuntime::GetConcreteClassStruct to encapsulate access to the 
underlying llvm::StructType for an interface.

llvm-svn: 69796
 2009-04-22 09:39:34 +00:00
Daniel Dunbar
725dc2c5bb Emit meta data using the Ivar, not a looked up FieldDecl. 
llvm-svn: 69790
 2009-04-22 08:22:17 +00:00
Daniel Dunbar
9fd114d577 Merge ivar access amongst the three runtimes. 
- For now, this means we are always doing the address computations by
   hand instead of constructing a proper GEP. Right now, however, this
   is less important than having fewer entry points to dealing with
   Objective-C interface layout.

llvm-svn: 69787
 2009-04-22 07:32:20 +00:00
Daniel Dunbar
722f424178 Make ObjCInterfaceDecl's const in some more places. 
llvm-svn: 69775
 2009-04-22 05:08:15 +00:00
Daniel Dunbar
658ba85820 Revert r69771, I missed some (obvious) details. :/ 
llvm-svn: 69773
 2009-04-22 04:39:47 +00:00
Daniel Dunbar
25b81ef847 Rework the shadow struct that is layed out for Objective-C classes. 
- Superclasses are now always laid out their shadow structure at the
   first field.

 - Prior to this, the entire class heirarchy was flattened into a
   single structure which meant that alignment, padding, and bitfields
   weren't packed correctly (the ASTRecordLayout was correct however,
   which meant our debug info didn't coincide with ivar offsets, for
   example).

 - This is still very suboptimal, but I believe the ivar layout itself
   is now at least close to correct.

 - <rdar://problem/6773388> error: objc[29823]: layout bitmap sliding
   backwards

llvm-svn: 69771
 2009-04-22 03:45:12 +00:00
Chris Lattner
2dfdb3ea94 move 64-bit abi functions to lazy model, everything is lazy now, yay. 
llvm-svn: 69767
 2009-04-22 02:53:24 +00:00
Chris Lattner
ce8754edac remove the last of the non-lazy objc runtime functions for the 32-bit ABI, 
7 left for 64-bit ABI.

llvm-svn: 69766
 2009-04-22 02:44:54 +00:00
Chris Lattner
0a696a42fe number of non-lazy runtime functions from 9 -> 4. 
llvm-svn: 69765
 2009-04-22 02:38:11 +00:00
Chris Lattner
095ac38f1c make message send functions lazy, we're down from 14 non-lazy functions to 9. 
llvm-svn: 69764
 2009-04-22 02:32:31 +00:00
Chris Lattner
c6406dbf7f move more EH stuff to being lazily created. An empty .m file now 
produces just 14 dead "declares" in llvm ir instead of 19.

llvm-svn: 69763
 2009-04-22 02:26:14 +00:00
Chris Lattner
a7c00b4c4c make try/catch objc runtime functions be lazily generated. 
rdar://6809612

llvm-svn: 69762
 2009-04-22 02:15:23 +00:00
Daniel Dunbar
d1148a7f72 Make sure to mark the interface as completed when we see an 
@implementation that closes a @class delcaration.
 - I don't know how to make a test case for this, but this strengthens
   the invariants that hold internally. The functionality change here
   is the edit to SemaDeclObjC.cpp.

llvm-svn: 69728
 2009-04-21 21:41:56 +00:00
Fariborz Jahanian
f5fec02d0c More objc2's ivar layout bitmap. No change in functionality. 
llvm-svn: 69695
 2009-04-21 18:33:06 +00:00
Daniel Dunbar
9ebf9516af Kill ASTContext::[gs]etFieldForDecl, instead we just lookup things 
when we need them -- which is exactly what some code was already
doing!
 - No intended functionality change.

llvm-svn: 69648
 2009-04-21 01:19:28 +00:00
Daniel Dunbar
e03f005d30 Assert on a few conditions that (I believe) should hold 
w.r.t. ASTContext::[gs]etFieldDecl, and the Field argument to
EmitObjCValueForIvar).

llvm-svn: 69639
 2009-04-21 00:41:40 +00:00
Fariborz Jahanian
80c9ce2c4a ObjC2's Ivar bitmap layout work. No change in functionality. 
llvm-svn: 69629
 2009-04-20 22:03:45 +00:00
Daniel Dunbar
e3f5cfc0b8 Move countInheritedIvars to within striking distance of 
GetClassSizeInfo

Reduce nesting in GetInterfaceDeclStructLayout.

Tweak some comments.

No functionality change.

llvm-svn: 69621
 2009-04-20 20:18:54 +00:00
Daniel Dunbar
be1f26df5d Inline GetFirstIvarInRecord into sole caller. 
- No functionality change.

llvm-svn: 69582
 2009-04-20 07:18:49 +00:00
Daniel Dunbar
75e909f5e0 Set a bit in IMAGE_INFO to indicate that we don't contain any 
@synthesized ivars for superclasses.
 - <rdar://problem/6806371> [clang] Mark code without miscompiled
   @synthesized properties

llvm-svn: 69581
 2009-04-20 07:11:47 +00:00
Daniel Dunbar
f5c18461e3 Lift out GetNamedIvarList. 
Drop uses of GetFirstInvarInRecord, instead we lookup the ivars we
know are in the record.
 - This is somewhat less efficient, but I need to detangle this code
   first...

llvm-svn: 69579
 2009-04-20 06:54:31 +00:00
Daniel Dunbar
caec0238bc Don't emit ivar offsets for unnamed bit fields. 
Also, added assertion that the field matches what would be looked up.

llvm-svn: 69572
 2009-04-20 05:53:40 +00:00
Daniel Dunbar
5d5dbb1754 Remove non-const form of lookupFieldDeclForIvar. 
llvm-svn: 69563
 2009-04-20 00:37:55 +00:00
Daniel Dunbar
ae03226bc6 Comment fixes. 
llvm-svn: 69562
 2009-04-20 00:33:43 +00:00
Daniel Dunbar
554fd79b38 Lift GetClassSizeInfo out of GenerateClass, add a FIXME. 
- No functionality change.

llvm-svn: 69561
 2009-04-19 23:41:48 +00:00
Chris Lattner
b433b279f3 Fix rdar://6804402 - crash on objc implementations declared with 
@class but no implementation.  This was broken in all 3 runtime
impls.

llvm-svn: 69512
 2009-04-19 06:02:28 +00:00
Daniel Dunbar
9a7a78b0ae Fix bug in computation of ivar offsets for (adjacent) bitfields. 
- The confusing IRgen bitfield interface is partly to blame here;
   fixing the functional error for now, cleanups to the interface to
   follow.

llvm-svn: 69503
 2009-04-19 02:03:42 +00:00
Daniel Dunbar
bf90b33665 Reuse ObjcIvarOffsetVariable instead of duplicating code. 
- No functionality change (but added a FIXME).

llvm-svn: 69496
 2009-04-19 00:44:02 +00:00
Daniel Dunbar
a106052090 Remove some unnecessary complexity. 
- No functionality change.

llvm-svn: 69495
 2009-04-19 00:31:15 +00:00
Daniel Dunbar
508a7dda4a Fix a bug found by inspection, class/meta references could be emitted 
into the wrong section (they shared the same lookup table).

llvm-svn: 69433
 2009-04-18 08:51:00 +00:00
Chris Lattner
6fdd57cba8 fix a crash compiling code with its own definition of objc_assign_weak. 
rdar://6800430

llvm-svn: 69392
 2009-04-17 22:12:36 +00:00
Daniel Dunbar
66b13dac0a Don't put msgrefs in used globals (in particular, we don't want 
no-dead-strip set on them).

llvm-svn: 69388
 2009-04-17 21:10:58 +00:00
Chris Lattner
10dae30049 Fix rdar://6800926 - crash compiling non-fragile _Bool bitfield ivar, 
the functional change here is changing ConvertType -> ConvertTypeForMem
so that we handle i1 fields properly as memory.

llvm-svn: 69361
 2009-04-17 17:46:19 +00:00
Fariborz Jahanian
68c4c61be8 Removed a no longer needed FIXME comment. 
llvm-svn: 69315
 2009-04-16 21:49:16 +00:00
Fariborz Jahanian
bcf548760e Category method synbols must be qualified by gategory name to 
match gcc's.

llvm-svn: 69305
 2009-04-16 18:34:20 +00:00
Daniel Dunbar
4b68d26a93 Don't use \01 in symbol name if unnecessary. 
- This was particularly bad since I fixed one instance of this name
   and not another, meaning we got an LLVM module with the same
   effective name in two different globals!

llvm-svn: 69205
 2009-04-15 19:52:32 +00:00
Daniel Dunbar
24645c9ff4 Fix alignment on obj_msgrefs to match llvm-gcc. 
llvm-svn: 69199
 2009-04-15 19:04:46 +00:00
Daniel Dunbar
e60aa05d34 Add test case for superrefs section (and make spacing consistent). 
llvm-svn: 69198
 2009-04-15 19:03:14 +00:00
Fariborz Jahanian
f5e8ddd550 __objc_superrefs belongs to __DATA segment. 
llvm-svn: 69170
 2009-04-15 16:31:36 +00:00
Daniel Dunbar
b25452a98e Tweaks to Objective-C metadata (32 & 64-bit) to match llvm-gcc. 
- Set alignment on property lists.
 - 32-bit:
   o Set section on property lists.
   o Fix section name for category class methods.
   o Fix symbol name for property lists.
   o Fix section name for class method.
   o Set alignment and section on class extension structure.
   o Set alignment on a number of things: instance variables, methods,
   method descriptions, the symbols structure.
 - 64-bit:
   o Fix section flags for protocol list.

I doubt most of these were problems in practice, but it is nice to
match llvm-gcc.

llvm-svn: 69132
 2009-04-15 02:56:18 +00:00
Daniel Dunbar
3241fae46c Set alignment on __cstring metadata variables to 1 (matching 
llvm-gcc).

llvm-svn: 69097
 2009-04-14 23:14:47 +00:00
Daniel Dunbar
729df96bf5 Avoid use of magic \01 prefix when unneeded. 
llvm-svn: 69093
 2009-04-14 22:44:26 +00:00
Fariborz Jahanian
899e7eb6c7 Do not dead code strip global meta-data objects. 
This will match gcc's behavior in the arena.

llvm-svn: 69061
 2009-04-14 18:41:56 +00:00
Daniel Dunbar
4527d30c3d Fix comment. 
llvm-svn: 69053
 2009-04-14 17:42:51 +00:00
Daniel Dunbar
f5f359fb73 Clean up handling of visibility. 
llvm-svn: 69027
 2009-04-14 06:00:08 +00:00
Daniel Dunbar
4184ac847f Update to use hasAttr() instead of getAttr(). 
- No functionality change.

llvm-svn: 68987
 2009-04-13 21:08:27 +00:00
Fariborz Jahanian
464423dce4 Patch to generate meta-data for prtocol used 
in @protocol expression.

llvm-svn: 68806
 2009-04-10 18:47:34 +00:00
Douglas Gregor
bcced4ec31 Propagate the ASTContext to various AST traversal and lookup functions. 
No functionality change (really).

llvm-svn: 68726
 2009-04-09 21:40:53 +00:00
Daniel Dunbar
8f28d01126 Implementation definition of interfaces with __objc_exception attribute. 
- Complete <rdar://problem/6635883> Support __objc_exception__
   attribute

llvm-svn: 68591
 2009-04-08 04:21:03 +00:00
Fariborz Jahanian
57eb2e021e Propagte -fvisibility to objc2's class symbols. 
llvm-svn: 68543
 2009-04-07 20:26:30 +00:00
Daniel Dunbar
d7beeea228 Handle use side of __objc_exception__ attribute; when using an 
exception with this attribute we don't need to emit a weak definition
for the exception type information.

llvm-svn: 68513
 2009-04-07 06:43:45 +00:00
Daniel Dunbar
15894b791b Various fixes to symbols used for Obj-C x86_64 metadata. 
- Changed method names to match gcc (categories names still aren't
   mangled in).

 - Expose correct name for class and metadata symbols (although
   -fvisibility=hidden isn't yet correct).

 - Remove several things from llvm.used that didn't need to be there
   (I suspect this can still be trimmed).

 - Don't use asm-prefix extension for _objc_empty_{cache,vtable} (not
   needed).

 - Hide EH type class info with -fvisibility=hidden

 - Change setGlobal[Option]Visibility to not change the visibility of
   functions with internal linkage.

llvm-svn: 68510
 2009-04-07 05:48:37 +00:00
Fariborz Jahanian
bc3c77b881 Fixed visibility issues related to objc2's synthesized 
ivars.

llvm-svn: 68453
 2009-04-06 18:30:00 +00:00
Chris Lattner
dcceee734c Fix a couple of cases where Constant* pointers can dangle in 
ObjCNonFragileABITypesHelper by converting them to dynamic
getters.  This fixes a crash on rdar://6757213.  The others
should be converted over as well.

llvm-svn: 68445
 2009-04-06 16:53:45 +00:00
Fariborz Jahanian
38a5c9650e Fix up lookup rules for properties declared in 
objc's continuation class.

llvm-svn: 68339
 2009-04-02 18:44:20 +00:00
Fariborz Jahanian
78be1651e2 Nonfragile ivar synthesis with property is in a continuation 
class.

llvm-svn: 68234
 2009-04-01 19:37:34 +00:00
Steve Naroff
e14b368fa9 More "prep" work for handling UTF16 CFString. 
Patch by Jean-Daniel Dupas. Thanks!

llvm-svn: 68203
 2009-04-01 13:55:36 +00:00
Chris Lattner
3088a31e96 remove ASTContext::buildObjCInterfaceType, which breaks canonical 
types.  It is no longer needed now that the code generator 
re-lays-out interfaces if they are defines after being laid out
from a forward decl.

llvm-svn: 68194
 2009-04-01 06:23:52 +00:00
Fariborz Jahanian
63a224ad59 ir-gen support for nonfragile abi's synthesized ivars. 
llvm-svn: 68122
 2009-03-31 18:11:23 +00:00
Fariborz Jahanian
3254a6f94c More toward nonfragile abi's synthesized ivars. 
llvm-svn: 68115
 2009-03-31 17:00:52 +00:00
Steve Naroff
66afeb5968 Some "prep" work for handling ObjC @-string constants that contain UTF-8. No functionality change. 
Changed GenerateConstantString() to take an ObjCStringLiteral (instead of a std::string). While this isn't strictly necessary, it seems cleaner and allows us to cache to "containsNonAscii" if necessary (to avoid checking in both Sema and CodeGen).

llvm-svn: 68114
 2009-03-31 16:53:37 +00:00
Chris Lattner
5b36ddb1ad fill in temporary smallvectors instead of vectors for performance. 
Fix BuildAggrIvarLayout to not access vectors out of range.

llvm-svn: 68101
 2009-03-31 08:48:01 +00:00
Chris Lattner
06ae0e2c3b small cleanups. 
llvm-svn: 68095
 2009-03-31 08:33:16 +00:00
Fariborz Jahanian
dac14a7159 - Minor change to dump of ivar layout map. 
- Temporarily undef'ed __OBJC2__ in nonfragile objc abi mode
  as it was forcing ivar synthesis in a certain project which clang
  does not yet support.

llvm-svn: 67766
 2009-03-26 19:10:36 +00:00
Fariborz Jahanian
f909f92799 More for for objc2's ivar layout map (currently 
is not in use).

llvm-svn: 67713
 2009-03-25 22:36:49 +00:00
Fariborz Jahanian
aedcfa49b9 Must allow for strong cast of floats as well (objc2 gc). 
llvm-svn: 67551
 2009-03-23 19:10:40 +00:00
Chris Lattner
d480892445 pull "runtime globals" into the same framework as other functions/global variables. 
No intended functionality change.

llvm-svn: 67478
 2009-03-22 21:03:39 +00:00
Fariborz Jahanian
07038f9785 Fix a crash during meta-data generation of objc2's nonfragile abi. 
llvm-svn: 67402
 2009-03-20 20:48:19 +00:00
Daniel Dunbar
64895a0703 Remove a FIXME. 
llvm-svn: 67022
 2009-03-15 06:05:20 +00:00
Fariborz Jahanian
1b074a3eb7 Fixed an ir-gen bug related to strong-cast generation of 
source being a non-pointer.

llvm-svn: 66854
 2009-03-13 00:42:52 +00:00
Fariborz Jahanian
1bf7288529 More objc2's ivar layout bitmap. 
bitmap generation for basic ivars seem to
work now. This is work in progress.

llvm-svn: 66836
 2009-03-12 22:50:49 +00:00
Fariborz Jahanian
99bee42be2 Code refactoring. No change in functionality. 
llvm-svn: 66710
 2009-03-11 21:42:00 +00:00
Fariborz Jahanian
cbaf73cd26 More of objc2's ivar layout bitmap (Next: specific). 
Work in progress.

llvm-svn: 66707
 2009-03-11 20:59:05 +00:00
Fariborz Jahanian
3b0f886c3f More Next objc2's gc ivar layout bitmap work. 
Work in progress.

llvm-svn: 66615
 2009-03-11 00:07:04 +00:00
Fariborz Jahanian
524bb20b4b More objc2's gc meta-data work related to ivar layout bitmap. 
Work in progress.

llvm-svn: 66546
 2009-03-10 16:22:08 +00:00
Daniel Dunbar
ae3338429f NeXT: Set alignment on a number of ObjC metadata variables (matching llvm-gcc). 
llvm-svn: 66481
 2009-03-09 22:18:41 +00:00
Daniel Dunbar
c2d4b62046 NeXT: Move some routines over to CreateMetadataVar. 
- No intended functionality change.

llvm-svn: 66473
 2009-03-09 21:49:58 +00:00
Daniel Dunbar
463cc8ade5 Tweak CreateMetadataVar, take the exact alignment instead of relying 
on LLVM TargetData.

llvm-svn: 66455
 2009-03-09 20:50:13 +00:00
Fariborz Jahanian
de2f33373b More fix for bitfield ivar meta-data and code gen accessing it. 
Now, we can actually execute dejagnu test with bitfield ivars
in non-fragile abi mode.

llvm-svn: 66448
 2009-03-09 20:44:22 +00:00
Daniel Dunbar
91b000f771 Fix typo in pref commit. 
llvm-svn: 66433
 2009-03-09 20:16:39 +00:00
Daniel Dunbar
30c653655d NeXT: Add CreateMetadataVar utility method to encapsulate creation of 
Obj-C metadata variables (which generally should be handled the same,
although they aren't currently).
 - No functionality change.

llvm-svn: 66432
 2009-03-09 20:09:19 +00:00
Fariborz Jahanian
6772621acf Code refactoring. No functional change. 
llvm-svn: 66391
 2009-03-08 20:18:37 +00:00
Fariborz Jahanian
03676f557c correct bitfield ivar offset in ivar meta-data. 
(objc abi specific).

llvm-svn: 66345
 2009-03-07 19:43:20 +00:00
Mike Stump
a6ca334389 Fixup our uses of various linkages to match how llvm now works. I think they are all 
correct, but an extra set of ObjC eyes would be good.

llvm-svn: 66342
 2009-03-07 16:33:28 +00:00
Eli Friedman
a374b68b5a Back out the patch in r66302, and re-fix it properly. We assume for 
performance that the type of the returned llvm::Value for an expression 
matches the converted type of the clang::Expr; mismatches will cause all
sorts of errors and silent miscompilations.

llvm-svn: 66321
 2009-03-07 03:57:15 +00:00
Daniel Dunbar
9676015e86 Cleanup EH a bit given changes to ObjCCatchStmt. 
- No functionality change.

llvm-svn: 66218
 2009-03-06 00:01:21 +00:00
Fariborz Jahanian
c559f3f175 More function stop for objc2's ivar layout bit map. 
llvm-svn: 66209
 2009-03-05 22:39:55 +00:00
Fariborz Jahanian
01dff426c8 Adds a template for a function for objc2's gc's ivar layout 
bitmap.

llvm-svn: 66175
 2009-03-05 19:17:31 +00:00
Devang Patel
4b6e4bb25d Refactor code. 
llvm-svn: 66043
 2009-03-04 18:21:39 +00:00
Steve Naroff
371b8fb4c3 Fix <rdar://problem/6640991> Exception handling executes wrong clause (Daniel, please verify). 
Also necessary to fix:

<rdar://problem/6632061> [sema] non object types should not be allowed in @catch statements
<rdar://problem/6252237> [sema] qualified id should be disallowed in @catch statements

llvm-svn: 65964
 2009-03-03 19:52:17 +00:00
Daniel Dunbar
76b7acc49f First cut at zero-cost EH support. 
- Still manually generates the EH code; the parts related to cleanup
   need to be integrated into the cleanup stack (for proper
   interaction with VLAs, etc.).

 - Some differences vs gcc in corner cases; I believe our behavior is
   correct but need to verify/file bugs vs gcc.

llvm-svn: 65809
 2009-03-02 06:08:11 +00:00
Daniel Dunbar
7a38ce4f88 Make sure to invoke (not call) to objc_exception_throw if necessary. 
llvm-svn: 65808
 2009-03-02 05:20:36 +00:00
Daniel Dunbar
a646834214 Fix completely broken thinko in GetClassGlobal. 
llvm-svn: 65807
 2009-03-02 05:18:14 +00:00
Daniel Dunbar
88367f2768 Obj-C non fragile ABI: Use GetClassGlobal in one more instance I missed. 
llvm-svn: 65762
 2009-03-01 04:51:18 +00:00
Daniel Dunbar
b1559a4499 Obj-C non fragile ABI: Add GetInterfaceEHType for getting the Obj-C 
exception typeinfo metadata, and a few other EH related types/functions.
 - No functionality change.

llvm-svn: 65761
 2009-03-01 04:46:24 +00:00
Daniel Dunbar
c6928bbe29 NeXT: Unify code for creating a class global. 
- No functionality change.

llvm-svn: 65760
 2009-03-01 04:40:10 +00:00
Daniel Dunbar
947bca2cc9 ObjCAtCatchStmt's ParamStmt is always a DeclStmt. 
llvm-svn: 65759
 2009-03-01 04:28:32 +00:00
Fariborz Jahanian
bac73acc24 Obscure code gen bug related to sending 
message to 'super' in a class method declared in
cateogy (darwin specific).

llvm-svn: 65709
 2009-02-28 20:07:56 +00:00
Fariborz Jahanian
cd073cc2e9 Alignment of pointers in __objc_classlist must be on their 
natural alignment. Otherwise, the excess hole confuses the
objc2 runtime (this is darwin specific).

llvm-svn: 65666
 2009-02-28 00:54:00 +00:00
Fariborz Jahanian
ec3385733a Couple of meta-data segments were wrong. This patch fixes them. 
llvm-svn: 65578
 2009-02-26 22:30:39 +00:00
Fariborz Jahanian
03b300b734 Fix an inconsistance in objc2's meta-data related to 
the symbol for the root meta-data.

llvm-svn: 65548
 2009-02-26 18:23:47 +00:00
Fariborz Jahanian
240f2b7851 patch for two things. 
make sure objc2's nonfragile abi is enacted for Leopard too.
add -fobjc-gc-only flag to the image_info symbol.

llvm-svn: 65413
 2009-02-24 23:34:44 +00:00
Fariborz Jahanian
6fe4306195 Set flag for -fobjc-gc in IMAGE_INFO variable. 
llvm-svn: 65387
 2009-02-24 21:08:09 +00:00
Daniel Dunbar
0b0dcd987d Some initial Obj-C zero cost EH support. 
- Only handles cases with @try with no @catch blocks, and there are a
   number of problems with the implementation. Nevertheless, this is
   good enough to handled @synchronized correctly, and some other
   basic uses.

llvm-svn: 65378
 2009-02-24 07:47:38 +00:00
Daniel Dunbar
94ceb61574 Fix two @synchronized bugs found by inspection: the expression to sychronize on should only be evaluated once, and it is evaluated outside the cleanup scope. 
Also, lift SyncEnter and SyncExit up in nervous anticipation of x86-64
zero cost EH.

llvm-svn: 65362
 2009-02-24 01:43:46 +00:00
Fariborz Jahanian
0f466c746f More objc's gc ir-gen stuff. 
llvm-svn: 65077
 2009-02-19 23:36:06 +00:00
Anders Carlsson
9ab53d120e Add support for throwing exceptions to the nonfragile ABI 
llvm-svn: 64692
 2009-02-16 22:59:18 +00:00
Fariborz Jahanian
06292955d0 Added implementation of objc2's gc API calls for 
nonfragile abi.

llvm-svn: 64690
 2009-02-16 22:52:32 +00:00
Daniel Dunbar
d73ea816af assert/ErrorUnsupported in unimplemented stub functions instead of 
miscompiling.

llvm-svn: 64647
 2009-02-16 18:48:45 +00:00
Daniel Dunbar
8de90f0a92 Obj-C non-fragile ABI: Fix types of a few globals; these were not 
creating valid LLVM structures (although they work fined).

llvm-svn: 64580
 2009-02-15 07:36:20 +00:00
Fariborz Jahanian
35afdfc36e Fixed a bad ir-gen bug which caused a dejagnu test to fail. 
Now we are pretty close to be in sync with objc's classic 
abi when it comes to passing dejagnu objc executable tests.

llvm-svn: 64569
 2009-02-14 21:25:36 +00:00
Fariborz Jahanian
99bed6fd21 Fixed a problem caused by foreward @class use 
which consequently caused a Seg fault. during meta-data
generation. It also addresses an issue related to
late binding of newly synthesize ivars (when we support it).

llvm-svn: 64563
 2009-02-14 20:13:28 +00:00
Fariborz Jahanian
d8fc1053ab Fixed a 64bit code gen bug of a cateogory 
implementation with no category declaration!

llvm-svn: 64470
 2009-02-13 17:52:22 +00:00
Fariborz Jahanian
c335c40a4b Fix a bug whereby, an ivar used to synthesize a property belongs 
to a base class (nonfragile abi ir gen bug).

llvm-svn: 64391
 2009-02-12 18:51:23 +00:00
Steve Naroff
b76051534c Several cleanups: 
- rename isObjCIdType/isObjCClassType -> isObjCIdStructType/isObjCClassStructType. The previous name didn't do what you would expect.
- add back isObjCIdType/isObjCClassType to do what you would expect. Not currently used, however many of the isObjCIdStructType/isObjCClassStructType clients could be converted over time.
- move static Sema function areComparableObjCInterfaces to ASTContext (renamed to areComparableObjCPointerTypes, since it now operates on pointer types).

llvm-svn: 64385
 2009-02-12 17:52:19 +00:00
Fariborz Jahanian
74b7722c2c ir-gen for objc's @selector expression in nonfragile abi mode. 
llvm-svn: 64323
 2009-02-11 20:51:17 +00:00
Fariborz Jahanian
d7264430e6 This patch is all it takes to pass all objc2's fast-enumeration 
tests in the dejagnu test suite in the nonfragile abi mode.

llvm-svn: 64251
 2009-02-10 22:46:12 +00:00
Fariborz Jahanian
4e7ae06b00 Generate ir for ivar offset. This will pass 
type-nsobject-attribute.m in the dejagnu test suite
in the nonfragile abi mode.

llvm-svn: 64233
 2009-02-10 20:21:06 +00:00
Fariborz Jahanian
21fc74c15a Some refactoring of Ivar offset code gen. 
in preparation for nonfragile ivar offset work.

llvm-svn: 64225
 2009-02-10 19:02:04 +00:00
Anders Carlsson
33c1b6528f Remove the last remnants of the Obj-C EH stack code. 
llvm-svn: 64205
 2009-02-10 06:07:49 +00:00
Anders Carlsson
bfee7e921b Use the new cleanup infrastructure for @try/@finally 
llvm-svn: 64160
 2009-02-09 20:38:58 +00:00
Anders Carlsson
dcb149cbef Add a simplified EmitJumpThroughFinally and use it in CGObjC in preparation of making it use the cleanup stack. 
llvm-svn: 64098
 2009-02-08 22:25:30 +00:00
Anders Carlsson
bf8a1be33c Split the exception object out into its own stack. 
llvm-svn: 64032
 2009-02-07 21:37:21 +00:00
Anders Carlsson
da0e4560a1 Simplify the Objective-C exception handling. 
llvm-svn: 64031
 2009-02-07 21:26:04 +00:00
Fariborz Jahanian
c76e741622 Fixed an objc2 nonfragile-abi code gen bug. 
Now we can say 'hello world' objective-c style
in the nonfragile abi.

llvm-svn: 63981
 2009-02-06 23:46:26 +00:00
Fariborz Jahanian
6b7cd6e5f4 objc2's nonfragile abi API for messages sent to 'super'. 
llvm-svn: 63959
 2009-02-06 20:09:23 +00:00
Fariborz Jahanian
33f66e640a objc2's nonfragile-abi - API selection for when receiver is a class 
llvm-svn: 63881
 2009-02-05 20:41:40 +00:00
Fariborz Jahanian
4f9d349e07 More objc2's API chanes. 
llvm-svn: 63878
 2009-02-05 19:35:43 +00:00
Fariborz Jahanian
9065541262 #ifdef'out out objc2 API selection which is not done in gcc (unlike 
the documentation to the contrary).

llvm-svn: 63871
 2009-02-05 18:00:27 +00:00
Fariborz Jahanian
4e87c834d3 This patch generates messaging code for objc2's non-fragile abi. 
llvm-svn: 63810
 2009-02-05 01:13:09 +00:00
Fariborz Jahanian
e4dc35deb9 Some early code for objc2's nonfragile abi messaging. 
llvm-svn: 63770
 2009-02-04 20:42:28 +00:00
Daniel Dunbar
4d22e4975a Change construction of common ObjC functions to use CGCall 
infrastructure to construct function type.
 - For consistencty, we should probably always use this to construct
   function types, but these are absolutely necessary to ensure that
   we can emit calls to these functions.

llvm-svn: 63695
 2009-02-04 00:44:42 +00:00
Fariborz Jahanian
3d9296e6f5 Some function stub added for new abi messaging. 
llvm-svn: 63691
 2009-02-04 00:22:57 +00:00
Fariborz Jahanian
82c72e1ee4 Several new declarations for objc2 nonfragile 
abi messaging.

llvm-svn: 63684
 2009-02-03 23:49:23 +00:00
Fariborz Jahanian
712bfa6478 ir-gen for nonfragile ivar bitfield access (objc2 nonfragile abi). 
llvm-svn: 63644
 2009-02-03 19:03:09 +00:00
Fariborz Jahanian
ebc4c9d2a3 Minor objc2 bug fix. 
llvm-svn: 63635
 2009-02-03 17:34:34 +00:00
Fariborz Jahanian
c88a70d885 objc2's ir-gen for nonfragile ivar access. 
llvm-svn: 63578
 2009-02-03 00:09:52 +00:00
Daniel Dunbar
bf8c24ad89 Thread CGFunctionInfo construction through CodeGenTypes. 
- Inefficient & leaks memory currently, will be cleaned up subsequently.

llvm-svn: 63567
 2009-02-02 23:23:47 +00:00
Daniel Dunbar
d931a87f90 More ABI API cleanup. 
- Lift CGFunctionInfo creation above ReturnTypeUsesSret and
   EmitFunction{Epi,Pro}log.

llvm-svn: 63553
 2009-02-02 22:03:45 +00:00
Daniel Dunbar
7633cbf005 ABI handling API changes. 
- Lift CGFunctionInfo creation up to callers of EmitCall.

 - Move isVariadic bit out of CGFunctionInfo, take as argument to
   GetFunctionType instead.

No functionality change.

llvm-svn: 63550
 2009-02-02 21:43:58 +00:00
Fariborz Jahanian
9f84b78ac1 Refactored code gen for ivar access in preparation for 
objc2 nonfragile ivar access code gen.

llvm-svn: 63541
 2009-02-02 20:02:29 +00:00
Fariborz Jahanian
c22f236e81 Use target alignment API to set objc2's meta-data 
alignment.

llvm-svn: 63470
 2009-01-31 02:43:27 +00:00
Daniel Dunbar
3cd20632ff Kill off CGCallInfo, always use CGFunctionInfo for encapsulating 
function/call info.

llvm-svn: 63466
 2009-01-31 02:19:00 +00:00
Fariborz Jahanian
0408723269 class meta-data belong to __objc_data section (in objc2 
nonfragile abi).

llvm-svn: 63461
 2009-01-31 01:07:39 +00:00
Fariborz Jahanian
822082517f Recognize class's visibility attribute and set its linkage 
to private extern (in objc2 nonfragile abi).

llvm-svn: 63460
 2009-01-31 00:59:10 +00:00
Fariborz Jahanian
75e0351adb Missed another mis-alignment of an objc2 meta-data. 
llvm-svn: 63453
 2009-01-30 23:51:52 +00:00
Fariborz Jahanian
e46e284efd Setting correct alignent for objc2 meta-data. 
llvm-svn: 63445
 2009-01-30 23:15:42 +00:00
Fariborz Jahanian
fa57e8e7ab add imag_info section and data (for objc2 nonfragile abi). 
llvm-svn: 63430
 2009-01-30 22:07:48 +00:00
Fariborz Jahanian
279abd31a9 Generate list of implemented classes and categories in their 
own sections (related to objc2 nonfragile abi).

llvm-svn: 63418
 2009-01-30 20:55:31 +00:00
Fariborz Jahanian
097feda5e0 Code gen. for @protocol expression in the new nonfragile abi. 
llvm-svn: 63408
 2009-01-30 18:58:59 +00:00
Fariborz Jahanian
d9c28b808b Bug fixing involving method-list in protocol meta-data 
(objc2 nonfragile-abi).

llvm-svn: 63351
 2009-01-30 00:46:37 +00:00
Fariborz Jahanian
34fe880648 Random bug fix related to protocl metadata in categories in 
non-fragile abi.

llvm-svn: 63343
 2009-01-29 23:23:06 +00:00
Fariborz Jahanian
61cd4b56c3 Set protocol linkage and visibility correctly and 
build protocol translation table meta-data (objc2
non-fragile abi).

llvm-svn: 63329
 2009-01-29 20:10:59 +00:00
Fariborz Jahanian
56b3b77c7d Protocol meta-data for objc2's non-fragile abi. 
Lot more to do in this area.

llvm-svn: 63326
 2009-01-29 19:24:30 +00:00
Fariborz Jahanian
d27a820ae2 Add setter/getter methods to the list of methods 
of class's meta-data (related to objc2 nonfragile abi).

llvm-svn: 63251
 2009-01-28 22:46:49 +00:00
Fariborz Jahanian
066347ec7b property metadata for objc2's nonfragile abi 
llvm-svn: 63246
 2009-01-28 22:18:42 +00:00
Fariborz Jahanian
b042a59230 Some refactoring of common code. No change in functionality. 
llvm-svn: 63218
 2009-01-28 19:12:34 +00:00
Fariborz Jahanian
3d3426f321 Set visibility of ivar offset symbols according to 
accessibility of the ivar (related to objc2's
non-fragile abi).

llvm-svn: 63166
 2009-01-28 01:36:42 +00:00
Fariborz Jahanian
40a4bcd49b Generation of ivar-offset symbols in objc2's non-fragile abi. 
Changed section names for meta-data (to match current gcc).

llvm-svn: 63163
 2009-01-28 01:05:23 +00:00
Fariborz Jahanian
e19a1f15ae After talking to our runtime guru, I added a comment. 
llvm-svn: 63141
 2009-01-27 22:27:56 +00:00
Fariborz Jahanian
7415caa3d4 ivar meta-data generation for nonfragile-abi. 
Still more work to do in this area.

llvm-svn: 63126
 2009-01-27 19:38:51 +00:00
Fariborz Jahanian
d0e8e85afc Added a FIXME. 
llvm-svn: 63071
 2009-01-26 23:49:05 +00:00
Fariborz Jahanian
2612e149ef Build method-description-list for category meta-data 
as well (for nonfragile-abi).

llvm-svn: 63062
 2009-01-26 22:58:07 +00:00
Fariborz Jahanian
99113fd577 Method decription meta-data and its setting in class_ro_t 
meta-data.

llvm-svn: 63043
 2009-01-26 21:38:32 +00:00