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151 Commits

Author SHA1 Message Date
Anders Carlsson
07894e8a0e More VTT builder fixes. With these fixes we now correctly handle the very complex VTT example from the Itanium ABI spec. 
llvm-svn: 93725
 2010-01-18 17:13:59 +00:00
Anders Carlsson
3d1a09552c Move some common code into BuildVTT. 
llvm-svn: 93710
 2010-01-18 04:45:46 +00:00
Anders Carlsson
1af3df854f Fix a bunch of VTT layout bugs, add simple tests for VTT layout. 
llvm-svn: 93709
 2010-01-18 04:25:18 +00:00
Anders Carlsson
827b245fd6 Minor VTT builder cleanup, no functionality change. 
llvm-svn: 93696
 2010-01-17 23:53:20 +00:00
Anders Carlsson
42f1376f35 Get the ctor vtable address points directly from the VTT builder. 
llvm-svn: 93681
 2010-01-17 17:10:44 +00:00
Anders Carlsson
5f9a881e1e Store the address points for constructor vtables directly in the VTT builder, because that's the only time they're needed. 
llvm-svn: 93412
 2010-01-14 02:29:07 +00:00
Douglas Gregor
ccecc1bb43 Fix marking of virtual members for nested classes whose first non-pure virtual function has a body inlined in the class 
llvm-svn: 92855
 2010-01-06 20:27:16 +00:00
Daniel Dunbar
a671c2a9fe Fix (invalid) may-be-uninitialized warning. 
llvm-svn: 92828
 2010-01-06 07:13:04 +00:00
Douglas Gregor
d01472beee Revert my available_externally vtables experiment. It's breaking the LLVM-with-Clang build with linker errors that I have yet to investigate. 
llvm-svn: 92822
 2010-01-06 04:50:56 +00:00
Mike Stump
81478719a7 Reorder to avoid invalidating idx which is an accessor into VCall. 
llvm-svn: 92819
 2010-01-06 03:09:19 +00:00
Douglas Gregor
26751ffc53 Silence bogus GCC warning 
llvm-svn: 92787
 2010-01-05 21:55:26 +00:00
Douglas Gregor
1a68ab6c83 Make use of available_externally linkage for vtables when the 
non-inline key function of a class template instantiation, when no key
function is present, the class template instantiation itself was
instantiated with an explicit instantiation declaration (aka extern
template). I'm fairly certain that the C++0x specification gives us
this lattitude, although GCC doesn't take advantage of it.

llvm-svn: 92779
 2010-01-05 21:40:05 +00:00
Douglas Gregor
a318efd1f2 Improve key-function computation for templates. In particular: 
- All classes can have a key function; templates don't change that.
  non-template classes when computing the key function.
  - We always mark all of the virtual member functions of class
  template instantiations. 
  - The vtable for an instantiation of a class template has weak
  linkage. 

We could probably use available_externally linkage for vtables of
classes instantiated by explicit instantiation declarations (extern
templates), but GCC doesn't do this and I'm not 100% that the ABI
permits it.

llvm-svn: 92753
 2010-01-05 19:06:31 +00:00
Anders Carlsson
93a1884fde Move address points to CGVtableInfo, no functionality change. 
llvm-svn: 92420
 2010-01-02 18:02:32 +00:00
Anders Carlsson
e36a6b3e44 Correctly pass VTT parameters to constructors and destructors. The VTTs aren't yet used in the ctors/dtors, but that will follow. 
llvm-svn: 92409
 2010-01-02 01:01:18 +00:00
Anders Carlsson
27da15ba8e Move a few more functions away from CGCXX and to CGClass and CGExprCXX. 
llvm-svn: 92399
 2010-01-01 20:29:01 +00:00
Anders Carlsson
a442499072 Fix a bunch of bugs with VMI RTTI building, and add a whole bunch of tests. 
llvm-svn: 92319
 2009-12-30 23:47:56 +00:00
Mike Stump
d538a6d364 Remove some dead code. 
llvm-svn: 92123
 2009-12-24 07:29:41 +00:00
Anders Carlsson
3f4336cb1f Rename GetAddrOfRTTI to GetAddrOfRTTIDescriptor. Remove the overload that takes a CXXRecordDecl since we were just creating a QualType from it anyway. 
llvm-svn: 91590
 2009-12-17 07:09:17 +00:00
Eli Friedman
2151725325 Fix a small bug in ComputeMethodVtableIndices. 
llvm-svn: 91411
 2009-12-15 03:31:17 +00:00
Eli Friedman
3ace52b3a7 Fix linkage of type info and vtable for classes without linkage. 
llvm-svn: 91152
 2009-12-11 20:48:18 +00:00
Anders Carlsson
fd7dfeb779 Improve linkage of RTTI data structures. Introduce CodeGenModule::GetAddrOfRTTI which figures out the right linkage of the RTTI information for the given type and whether it should be defined or not. I will migrate clients over to GetAddrOfRTTI in subsequent commits (with tests). 
llvm-svn: 91098
 2009-12-11 02:46:30 +00:00
Eli Friedman
48c6b0d14f Slight tweak to vtable linkage. 
llvm-svn: 90832
 2009-12-08 04:09:14 +00:00
Eli Friedman
31bc3ad275 A bunch more thunk fixes from misc testing. 
(Yes, I do intend to commit some tests for this.)

llvm-svn: 90818
 2009-12-07 23:56:34 +00:00
Anders Carlsson
e1b3e6292a It's OK to try to emit a vtable definition more than once. Fixes PR5697. 
llvm-svn: 90751
 2009-12-07 07:59:52 +00:00
Eli Friedman
c0dacee1e0 Erm, revert for the moment; I didn't test this as thoroughly as I should have 
(although it does pass regression tests).

llvm-svn: 90747
 2009-12-07 04:45:50 +00:00
Eli Friedman
c5d3a6ae3d Tweak the formula for non-virtual offsets to something which appears a bit 
more accurate.

llvm-svn: 90746
 2009-12-07 04:38:34 +00:00
Anders Carlsson
5ebf8b44e9 Move key functions to a separate map. 
llvm-svn: 90745
 2009-12-07 04:35:11 +00:00
Eli Friedman
f2eda5efd2 Be a bit more complete about accumulating SavedThisAdjustments. 
llvm-svn: 90723
 2009-12-06 22:33:51 +00:00
Eli Friedman
8174f2c23c Work-in-progess rewrite of thunks: move thunk generation outside of vtable 
generation, and make sure we generate thunks when the function is defined
rather than when the vtable is defined.

llvm-svn: 90722
 2009-12-06 22:01:30 +00:00
Anders Carlsson
fe5f7d916f Set the correct linkage for VTTs as well. 
llvm-svn: 90689
 2009-12-06 01:09:21 +00:00
Anders Carlsson
232324c5c0 More linkage improvements. 
llvm-svn: 90687
 2009-12-06 00:53:22 +00:00
Anders Carlsson
0911ae8ef2 Pass the desired vtable linkage to GenerateVtable directly. Only call MaybeMarkVirtualImplicitMembersReferenced for non-inline functions. 
llvm-svn: 90686
 2009-12-06 00:23:49 +00:00
Anders Carlsson
7e28c5f2e2 Make GenerateVtable a private member function of CGVtableInfo. 
llvm-svn: 90684
 2009-12-06 00:01:05 +00:00
Anders Carlsson
4ed44eb7d9 Only emit the vtable definition if the class has a key function and we're emitting it, or if the class doesn't have a key function and we are emitting the complete constructor. 
llvm-svn: 90681
 2009-12-05 22:42:54 +00:00
Anders Carlsson
0ab79e22ab If a class does not have a key function, its linkage should be weak_odr. 
llvm-svn: 90680
 2009-12-05 22:24:38 +00:00
Anders Carlsson
58b271d450 Use createGlobalVariable for creating vtable variables too. 
llvm-svn: 90679
 2009-12-05 22:19:10 +00:00
Anders Carlsson
b3f54b748d CodeGenModule::GenerateVtable now returns a pointer directly to the vtable and not to the address point. 
llvm-svn: 90676
 2009-12-05 21:28:12 +00:00
Anders Carlsson
a95d4c51dc Make sure that hte vtable always has an i8* array type. 
llvm-svn: 90675
 2009-12-05 21:09:05 +00:00
Anders Carlsson
c8e39ec79f Add a function for getting the vtable address point of a class. 
llvm-svn: 90674
 2009-12-05 21:03:56 +00:00
Anders Carlsson
b694f05ffb Simplify BuildVTT. 
llvm-svn: 90673
 2009-12-05 21:02:25 +00:00
Anders Carlsson
b78d093fcc Let the VTT builder pretend that getVtable returns a pointer to the vtable and not to the vtable address point. 
llvm-svn: 90672
 2009-12-05 20:58:49 +00:00
Anders Carlsson
78c2898e02 Change getCtorVtable to not return the address point offset, but the global variable. 
llvm-svn: 90671
 2009-12-05 20:42:53 +00:00
Anders Carlsson
21bbc1e705 Factor vtable related GlobalVariable creation out into a separate function. Add vtable linkage test. 
llvm-svn: 90667
 2009-12-05 17:04:47 +00:00
Eli Friedman
6c08ce7706 Skip actually generating the vtable unless we are defining it. This avoids 
the side-effects of generating the methods in the vtable (including PR5676).

llvm-svn: 90635
 2009-12-05 01:05:03 +00:00
Benjamin Kramer
62ab616666 Return bool as a bool instead of a uint64_t. 
llvm-svn: 90610
 2009-12-04 22:45:27 +00:00
Anders Carlsson
bad80eb792 Rename 'Class' to 'MostDerivedClass' 
llvm-svn: 90573
 2009-12-04 18:36:22 +00:00
Anders Carlsson
19462d681a Store the vtable components in a SmallVector. 
llvm-svn: 90571
 2009-12-04 16:24:46 +00:00
Anders Carlsson
4e1d75f3ed Use a different ConstantArray::get. 
llvm-svn: 90570
 2009-12-04 16:22:27 +00:00
Anders Carlsson
472404f8a6 Move the vtable vector directly into the Vtable builder. 
llvm-svn: 90569
 2009-12-04 16:19:30 +00:00