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433 Commits

Author SHA1 Message Date
Anders Carlsson
259688ce29 Move pointer to data member emission to CodeGenModule and use it in CGExprConstant. Fixes PR5674. 
llvm-svn: 95063
 2010-02-02 03:37:46 +00:00
Anders Carlsson
ab0ddb57b1 Start creating CXXBindReferenceExpr nodes when binding complex types to references. 
llvm-svn: 94964
 2010-01-31 18:34:51 +00:00
Anders Carlsson
84673e200f Some class related cleanup. 
llvm-svn: 94938
 2010-01-31 01:36:53 +00:00
Anders Carlsson
db78f0ad04 Add a new EmitLValueForFieldInitialization that will be used for initializing fields (and reference type fields in particular). 
llvm-svn: 94799
 2010-01-29 05:24:29 +00:00
Anders Carlsson
5d8645b150 Simplify EmitLValueForField - we can get whether the field is part of a union or not from the FieldDecl (through its DeclContext). 
llvm-svn: 94798
 2010-01-29 05:05:36 +00:00
Ken Dyck
5262b11962 Use CharUnits for alignments in character units. 
llvm-svn: 94571
 2010-01-26 19:13:33 +00:00
Anders Carlsson
60ddba67a8 Fix a nasty bug where temporaries weren't marked as being conditional in some cases. 
llvm-svn: 94341
 2010-01-24 00:20:05 +00:00
Ken Dyck
40775003e6 Roll out ASTContext::getTypeSizeInChars(), replacing instances of 
"ASTContext::getTypeSize() / 8". Replace [u]int64_t variables with CharUnits
ones as appropriate. 

Also rename RawType, fromRaw(), and getRaw() in CharUnits to QuantityType, 
fromQuantity(), and getQuantity() for clarity.

llvm-svn: 93153
 2010-01-11 17:06:35 +00:00
Chris Lattner
116ce8f172 refactor pre/postinc logic into CGF and require the caller to pass in the 
lvalue to poke, no functionality change.

llvm-svn: 93075
 2010-01-09 21:40:03 +00:00
Eli Friedman
5866fe306d Fix for PR5967: Make const-marking for LLVM globals correct for cases requiring 
run-time initialization, and emit run-time initializers aggresively to avoid
ordering issues with deferred globals.

llvm-svn: 92976
 2010-01-08 00:50:11 +00:00
Eli Friedman
6257e08a3d Get rid of more dead code. 
llvm-svn: 92439
 2010-01-03 01:11:47 +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
bfb3671b25 Pass the return value slot to all call exprs. 
llvm-svn: 92145
 2009-12-24 21:13:40 +00:00
Anders Carlsson
1749083e2e Fill in the return value slot in CGExprAgg::VisitCallExpr. This takes us halfway towards fixing PR5824. 
llvm-svn: 92142
 2009-12-24 20:40:36 +00:00
Anders Carlsson
61a401caec Pass ReturnValueSlot to EmitCall. No functionality change yet. 
llvm-svn: 92138
 2009-12-24 19:25:24 +00:00
Anders Carlsson
0435ed5875 Add a ReturnValueSlot class. Change the argument order in EmitCall to match the other overload better. 
llvm-svn: 92136
 2009-12-24 19:08:58 +00:00
Eli Friedman
70724ad2ff Work in progress for setting the vtable pointers for all bases correctly in 
the constructor.  This doesn't handle cases requiring the VTT at the moment,
and generates unnecessary stores, but I think it's essentially correct.

llvm-svn: 91731
 2009-12-18 23:47:41 +00:00
Mike Stump
3f6f9febad Implement additional undefined checks for additional loads and stores. WIP. 
llvm-svn: 91498
 2009-12-16 02:57:00 +00:00
Mike Stump
e8c3b3eca4 Switch codegen for -fcatch-undefined-bahavior over to __builtin_trap 
instead of abort to improve codesize and codegen.

llvm-svn: 91374
 2009-12-15 00:35:12 +00:00
Mike Stump
ba6a0c40c4 Add support for detecting undefined shift behavior. WIP. 
llvm-svn: 91341
 2009-12-14 21:58:14 +00:00
Mike Stump
d954638f02 Implement runtime checks for undefined behavior. WIP. 
This implements a new flag -fcatch-undefined-behavior.  The flag turns
on additional runtime checks for:

  T a[I];

  a[i]    abort when i < 0 or i >= I.

Future stuff includes shifts by >= bitwidth amounts.

llvm-svn: 91198
 2009-12-12 01:27:46 +00:00
Eli Friedman
d5bc94e2eb Get rid of static variable. 
llvm-svn: 91041
 2009-12-10 02:21:21 +00:00
Mike Stump
f5cbb08c4b Ensure we only generate one terminate handler. 
llvm-svn: 90998
 2009-12-10 00:02:42 +00:00
Mike Stump
102530719f Add terminate handler to cleanups on exceptional edges. 
llvm-svn: 90996
 2009-12-09 23:49:53 +00:00
Fariborz Jahanian
531c16f9fb Code gen for ObjCIsaExpr AST used as lvalue. 
(fixes radar 7457534).

llvm-svn: 90995
 2009-12-09 23:35:29 +00:00
Mike Stump
2b488873bf Break out code for reuse. WIP. 
llvm-svn: 90991
 2009-12-09 22:59:31 +00:00
Mike Stump
aff69af918 Add cleanups for exceptional edges. WIP. 
llvm-svn: 90940
 2009-12-09 03:35:49 +00:00
Eli Friedman
bb5008a32a Fix for PR5707: make sure implicit copy constructors initialize the vtable 
pointer.

llvm-svn: 90840
 2009-12-08 06:46:18 +00:00
Mike Stump
1d849219a5 Add codegen support for exception specifications. WIP. 
llvm-svn: 90817
 2009-12-07 23:38:24 +00:00
Chris Lattner
e99c110d06 implement rdar://7346691 by codegen'ing struct/array initializers 
to a memset or a memcpy from a global when possible.

llvm-svn: 90658
 2009-12-05 08:22:11 +00:00
Mike Stump
bee78dd31b Add support for function try blocks. 
llvm-svn: 90622
 2009-12-04 23:26:17 +00:00
Eli Friedman
4b1942cb8b Make functions returning a struct indirectly evaluate the returned struct 
directly into the sret pointer. This is an optimization in C, but is required
for correctness in C++ for classes with a non-trivial copy constructor.

llvm-svn: 90526
 2009-12-04 02:43:40 +00:00
Eli Friedman
551fe84d0e Minor cleanup. 
llvm-svn: 90411
 2009-12-03 04:27:05 +00:00
Mike Stump
e2d4a2c3a8 Add support for thunking dtors. Oh why does this make my head hurt? 
llvm-svn: 90409
 2009-12-03 03:47:56 +00:00
Mike Stump
33270211a0 More exception handling improvements... WIP. 
Highlights include:

  Add a helper to generate __cxa_free_exception and _ZSt9terminatev.
  Add a region to handle EH object deallocation for ctor failures for throw.
  Add a terminate handler for __cxa_end_catch.
  A framework for adding cleanup actions for the exceptional edges only.

llvm-svn: 90305
 2009-12-02 07:41:41 +00:00
Mike Stump
e5311b0d79 Reflow comments and fix 80-col violation. 
llvm-svn: 90152
 2009-11-30 20:08:49 +00:00
Anders Carlsson
2f87c4f1a5 Add a CovariantThunkAdjustment struct that represents the adjustments needed for a covariant thunk. 
llvm-svn: 89933
 2009-11-26 03:09:37 +00:00
Anders Carlsson
c778540f9a Add a ThunkAdjustment struct which holds a non-virtual and a virtual adjustment offset. Start using it. General cleanup in Mangle.cpp. 
llvm-svn: 89925
 2009-11-26 02:32:05 +00:00
Anders Carlsson
82ba57c8f0 Add VTT parameter to base ctors/dtors with virtual bases. (They aren't used yet). 
llvm-svn: 89835
 2009-11-25 03:15:49 +00:00
Douglas Gregor
7bab5ff8e7 Eliminate CXXConditionDeclExpr with extreme prejudice. 
All statements that involve conditions can now hold on to a separate
condition declaration (a VarDecl), and will use a DeclRefExpr
referring to that VarDecl for the condition expression. ForStmts now
have such a VarDecl (I'd missed those in previous commits).

Also, since this change reworks the Action interface for
if/while/switch/for, use FullExprArg for the full expressions in those
expressions, to ensure that we're emitting

Note that we are (still) not generating the right cleanups for
condition variables in for statements. That will be a follow-on
commit.

llvm-svn: 89817
 2009-11-25 00:27:52 +00:00
Douglas Gregor
680f861d74 Clean up the AST for while loops and fix several problems with 
cleanups for while loops: 

1) Make sure that we destroy the condition variable of a while statement each time through the loop for, e.g.,

   while (shared_ptr<WorkInt> p = getWorkItem()) {
         // ...
         }

2) Make sure that we always enter a new cleanup scope for the body of the while loop, even when there is no compound expression, e.g.,

   while (blah)
     RAIIObject raii(blah+1);

llvm-svn: 89800
 2009-11-24 21:15:44 +00:00
Anders Carlsson
3a202f601e Handle cases where we're constructing an array of objects and the constructor has default arguments. 
llvm-svn: 89783
 2009-11-24 18:43:52 +00:00
Douglas Gregor
965f450d42 Introduce cleanup scopes for "if" statements in two places: 
- Outside the "if", to ensure that we destroy the condition variable
    at the end of the "if" statement rather than at the end of the
    block containing the "if" statement.
  - Inside the "then" and "else" branches, so that we emit then- or
    else-local cleanups at the end of the corresponding block when the
    block is not a compound statement.

To make adding these new cleanup scopes easier (and since
switch/do/while will all need the same treatment), added the
CleanupScope RAII object to introduce a new cleanup scope and make
sure it gets cleaned up.

llvm-svn: 89773
 2009-11-24 16:43:22 +00:00
Douglas Gregor
48a409eb39 Rename CleanupScope -> DelayedCleanupBlock. No functionality change. 
llvm-svn: 89769
 2009-11-24 16:21:10 +00:00
Anders Carlsson
8c793172c2 Handle base-to-derived casts. Will land test case shortly. 
llvm-svn: 89678
 2009-11-23 17:57:54 +00:00
Anders Carlsson
0a66c26191 Fix lifetime of conditional temporaries. Patch by Victor Zverovich! 
llvm-svn: 89467
 2009-11-20 17:27:56 +00:00
Eli Friedman
794290ca29 Add an assertion to catch bad calls to EmitCallArgs. 
llvm-svn: 89190
 2009-11-18 03:42:04 +00:00
Eli Friedman
24f55430c8 Missing piece of r89173. 
llvm-svn: 89174
 2009-11-18 00:57:03 +00:00
Anders Carlsson
cfd3012756 More const is always good. 
llvm-svn: 89033
 2009-11-17 03:57:07 +00:00
Mike Stump
65511704f7 Implement most of dynamic_cast. WIP. 
llvm-svn: 88901
 2009-11-16 06:50:58 +00:00
Mike Stump
c9b231c8d1 Implement typeid for class types. 
llvm-svn: 88843
 2009-11-15 08:09:41 +00:00
Fariborz Jahanian
6814eaa2cc Code gen for arrady delete operator. Fixes pr5472. 
llvm-svn: 88680
 2009-11-13 19:27:47 +00:00
Daniel Dunbar
1b4441915a Wherein the TargetInfo argument to Preprocessor is made 'const' and propogated. 
llvm-svn: 87087
 2009-11-13 05:51:54 +00:00
Anders Carlsson
e828c36933 Add a special BuildVirtualCall that's going to be used for building calls to destructors. This is needed because when compiling: 
struct A {
	virtual ~A();
};

void f(A* a) {
	delete a;
}

A's deleting destructor should be called.

llvm-svn: 87083
 2009-11-13 04:45:41 +00:00
Fariborz Jahanian
1254a0978c This patch implements Code gen. for destruction of 
global array of objects.

llvm-svn: 86701
 2009-11-10 19:24:06 +00:00
Mike Stump
d846d0825b Add vtable caching to prevent multiple vtables for the same class from 
being generated.

Add the most derived vtable pointer to the VTT.

llvm-svn: 86671
 2009-11-10 07:44:33 +00:00
Mike Stump
9f23a149cb Be sure to clear out VCall when we clear out VCalls. 
Start implementing VTTs.  WIP.

llvm-svn: 86650
 2009-11-10 02:30:51 +00:00
Anders Carlsson
509850ebec Change EmitPointerToDataMemberLValue to take a FieldDecl. No intended functionality change. 
llvm-svn: 86407
 2009-11-07 22:00:15 +00:00
Chris Lattner
4f24225e8e indirectbr seems to work! Rip out the old code. 
llvm-svn: 86256
 2009-11-06 17:38:18 +00:00
Fariborz Jahanian
09cc10f9f8 This patch extends CleanupScope to support destruction 
of array objects on block exit. Patch is by Anders Calrsson.

llvm-svn: 86032
 2009-11-04 17:57:40 +00:00
Mike Stump
53f9ded62b Refine volatile handling, specifically, we must have the canonical 
type to look at the volatile specifier.  I found these all from just
hand auditing the code.

llvm-svn: 85967
 2009-11-03 23:25:48 +00:00
Mike Stump
77738205e6 Refine return value adjustments for thunks. 
llvm-svn: 85905
 2009-11-03 16:59:27 +00:00
Anders Carlsson
4b08db7a62 Add CGException.cpp, to be used for exception related code generation. 
llvm-svn: 85560
 2009-10-30 01:42:31 +00:00
Chris Lattner
edc56ef41c optimize out some ifdefs. 
llvm-svn: 85453
 2009-10-29 00:22:00 +00:00
Chris Lattner
6c4d255bf3 Implement clang support for indirect branch and address of label 
using the new LLVM support for this.  This is temporarily hiding
behind horrible and ugly #ifdefs until the time when the optimizer
is stable (hopefully a week or so).  Until then, lets make it "opt in" :)

llvm-svn: 85446
 2009-10-28 23:59:40 +00:00
Douglas Gregor
4bd90e53c2 Eliminate QualifiedDeclRefExpr, which captured the notion of a 
qualified reference to a declaration that is not a non-static data
member or non-static member function, e.g., 

  namespace N { int i; }
  int j = N::i;

Instead, extend DeclRefExpr to optionally store the qualifier. Most
clients won't see or care about the difference (since
QualifierDeclRefExpr inherited DeclRefExpr). However, this reduces the
number of top-level expression types that clients need to cope with,
brings the implementation of DeclRefExpr into line with MemberExpr,
and simplifies and unifies our handling of declaration references.

Extended DeclRefExpr to (optionally) store explicitly-specified
template arguments. This occurs when naming a declaration via a
template-id (which will be stored in a TemplateIdRefExpr) that,
following template argument deduction and (possibly) overload
resolution, is replaced with a DeclRefExpr that refers to a template
specialization but maintains the template arguments as written.

llvm-svn: 84962
 2009-10-23 18:54:35 +00:00
Fariborz Jahanian
ffba662dd2 Complete code gen for '.*' binary expression for 
both scalar and aggregates.

llvm-svn: 84910
 2009-10-22 22:57:31 +00:00
Fariborz Jahanian
4ebdff5e1c Code gen for pointer-to-datamember - WIP. 
llvm-svn: 84771
 2009-10-21 18:38:00 +00:00
Mike Stump
7fe9cc1dd5 Prep work to always preallocate BlockDeclRefExprs so that we can 
generate the debug information for the first parameter to the block
invoke functions.  WIP.

llvm-svn: 84737
 2009-10-21 03:49:08 +00:00
Fariborz Jahanian
e4d94cee05 Code-gen for CXXZeroInitValueExpr AST passed 
as argument to a function call. Removes a FIXME.

llvm-svn: 84694
 2009-10-20 23:29:04 +00:00
Daniel Dunbar
b5aacc282c Twinify CodeGenFunction::CreateTempAlloca 
llvm-svn: 84456
 2009-10-19 01:21:05 +00:00
Chris Lattner
2bb5cb490c reimplement codegen for indirect goto with the following advantages: 
1. CGF now has fewer bytes of state (one pointer instead of a vector).
2. The generated code is determinstic, instead of getting labels in
   'map order' based on pointer addresses.
3. Clang now emits one 'indirect goto switch' for each function, instead
   of one for each indirect goto.  This fixes an M*N = N^2 IR size issue
   when there are lots of address-taken labels and lots of indirect gotos.
4. This also makes the default cause do something useful, reducing the
   size of the jump table needed (by one).

llvm-svn: 83952
 2009-10-13 06:55:33 +00:00
Anders Carlsson
c6d171ec77 Change GetAddressCXXOfBaseClass to use CXXBasePaths for calculating base class offsets. Fix the code to handle virtual bases as well. 
llvm-svn: 83426
 2009-10-06 22:43:30 +00:00
Anders Carlsson
2ee3c011d9 Implement code generation of member function pointer calls. Fixes PR5121. 
llvm-svn: 83271
 2009-10-03 19:43:08 +00:00
Anders Carlsson
32bfb1ce8f Move some functions from CodeGenFunctions to CodeGenModule so they can be used by CGExprConstant. 
llvm-svn: 83263
 2009-10-03 14:56:57 +00:00
Anders Carlsson
9150a2a8c0 Handle CK_BaseToDerivedMemberPointer for member function pointers. Fixes PR5091. 
llvm-svn: 83041
 2009-09-29 03:13:20 +00:00
Anders Carlsson
52d78a518a CodeGen for try statements. (We just emit the body for now). 
llvm-svn: 82910
 2009-09-27 18:58:34 +00:00
John McCall
8ccfcb51ee Refactor the representation of qualifiers to bring ExtQualType out of the 
Type hierarchy.  Demote 'volatile' to extended-qualifier status.  Audit our
use of qualifiers and fix a few places that weren't dealing with qualifiers
quite right;  many more remain.

llvm-svn: 82705
 2009-09-24 19:53:00 +00:00
Anders Carlsson
d49844b715 Add a new variant of EmitCXXAggrConstructorCall that takes a Value that holds the number of elements to construct, to be used when implementing new[]. 
llvm-svn: 82602
 2009-09-23 02:45:36 +00:00
Anders Carlsson
1450adbbf9 Code generation of Conditional operators that are lvalues (but that aren't bitfields). 
llvm-svn: 81867
 2009-09-15 16:35:24 +00:00
Anders Carlsson
ddf57d3df9 Remove an unnecessary FunctionDecl parameter to the synthesizing functions. 
llvm-svn: 81759
 2009-09-14 05:32:02 +00:00
Anders Carlsson
96bad9a5cd Implement CodeGenFunction::EmitCXXExprWithTemporariesLValue. 
llvm-svn: 81738
 2009-09-14 01:10:45 +00:00
Anders Carlsson
864d525533 Rename AddressCXXOfBaseClass to GetAddressCXXOfBaseClass. Add a NullCheckValue argument (currently unused). 
llvm-svn: 81606
 2009-09-12 04:26:35 +00:00
Anders Carlsson
0168f4b202 For __block variables, cache the LLVM types as well as which LLVM field where the variable is stored. 
llvm-svn: 81599
 2009-09-12 02:14:24 +00:00
Mike Stump
80f6ac5a4f Add basic covariant thunk generation support. WIP. 
llvm-svn: 81585
 2009-09-11 23:25:56 +00:00
Anders Carlsson
73fcc95f0f Pass GlobalDecls to GenerateCode and StartFunction. 
llvm-svn: 81485
 2009-09-11 00:07:24 +00:00
Anders Carlsson
e9766d559b If a cast expression needs either a conversion function or a constructor to be called, generate implicit child expressions that call them. 
llvm-svn: 81383
 2009-09-09 21:33:21 +00:00
Mike Stump
11289f4280 Remove tabs, and whitespace cleanups. 
llvm-svn: 81346
 2009-09-09 15:08:12 +00:00
Anders Carlsson
71d1d92d37 Make BuildByRefType take a ValueDecl instead of a QualType and an alignment. 
llvm-svn: 81315
 2009-09-09 02:51:03 +00:00
Mike Stump
453fe4285d Install thunks later to fixup overrides. Track space taken by vbase 
offsets better for thunk refinements.  Cleanups.  WIP.

llvm-svn: 81067
 2009-09-05 07:20:32 +00:00
Mike Stump
5a522353c3 Add overidding for methods for vtable building for the secondary 
vtables.  Add thunk generation.  WIP.

llvm-svn: 81014
 2009-09-04 18:27:16 +00:00
Fariborz Jahanian
879d726608 Re-implemented generation of objc_memmove_collectable 
API for copying GC'able aggregates (Next runtime only).

llvm-svn: 80607
 2009-08-31 19:33:16 +00:00
Fariborz Jahanian
c71f094c08 ir-gen for type convesion of class objects. WIP. 
llvm-svn: 80178
 2009-08-26 23:31:30 +00:00
Mike Stump
a5588bf3ac Implement virtual dispatch. :-) This is self-consistent with clang, 
but not yet necessarily perfectly consistent with gcc.  Also addressed
Doug and John's comments.

llvm-svn: 80137
 2009-08-26 20:46:33 +00:00
Anders Carlsson
458055a890 Revert r80064 since it broke the build. 
llvm-svn: 80066
 2009-08-26 03:30:14 +00:00
Mike Stump
fbddfdacdc Implement virtual dispatch. :-) This is self-consistent with clang, but not yet 
necessarily perfectly consistent with gcc.

llvm-svn: 80064
 2009-08-26 01:54:35 +00:00
Anders Carlsson
4557b2c0c2 Remove dead code 
llvm-svn: 79921
 2009-08-24 16:52:33 +00:00
Fariborz Jahanian
8adc973483 Patch to ir-gen copy assigning array members when synthesizing 
a copy assignment operator function.

llvm-svn: 79681
 2009-08-21 22:34:55 +00:00
Fariborz Jahanian
5626384384 Patch to provide ir-gen support in copying array members 
when synthesizing a copy constructor. Arrays's base element
may have a trivial or non-trivial copy constructor.

llvm-svn: 79653
 2009-08-21 18:30:26 +00:00
Fariborz Jahanian
9c83720d17 ir-gen patch to destruct array members. WIP. 
llvm-svn: 79565
 2009-08-20 20:54:15 +00:00
Fariborz Jahanian
9a84665921 Using "ObjCImplicitSetterGetterRefExpr" instead of "ObjCImplctSetterGetterRefExpr". 
A field rename and more comments.

llvm-svn: 79537
 2009-08-20 17:02:02 +00:00
Fariborz Jahanian
431c883287 ir-gen for constructing arrays as non-static data members. WIP. 
llvm-svn: 79464
 2009-08-19 20:55:16 +00:00
Mike Stump
494c42526b Add some documentation. 
llvm-svn: 79373
 2009-08-18 21:59:28 +00:00
Mike Stump
07347353a0 Cleanups. Move GenerateRtti to CodeGenModule. 
llvm-svn: 79372
 2009-08-18 21:49:00 +00:00
Mike Stump
ee81dca8c7 Move the rest of the vtable building code into the new builder. 
llvm-svn: 79370
 2009-08-18 21:30:21 +00:00
Fariborz Jahanian
88cc2340de Renamed ObjCKVCRefExpr to ObjCImplctSetterGetterRefExpr. 
Removed an unnecessary loop to get to setters incoming
argument. Added DoxyGen comments. Still more work
to do in this area (WIP).

llvm-svn: 79365
 2009-08-18 20:50:23 +00:00
Fariborz Jahanian
d172e91f2a Patch to 1) synthesizing non-trivial default destructor when 
one is not provided by user. 2) More complete
emission of ctor prologue when it has no initializer
list or when it is synthesized.

llvm-svn: 79269
 2009-08-17 19:04:50 +00:00
Anders Carlsson
81f0df9601 Improve handling of delete expressions. 
llvm-svn: 79205
 2009-08-16 21:13:42 +00:00
Anders Carlsson
5b106a7545 Add an IsInitializer flag to EmitAnyExpr. This is used to prevent temporaries from being destroyed when they're bound to a reference variable. 
llvm-svn: 79179
 2009-08-16 07:36:22 +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
Eli Friedman
04fddf0d1f Fix for PR4721: adjust CodeGen and ASTContext so that we have a 
consistent model for handling size expressions for VLAs.

The model is essentially as follows: VLA types own their associated
expression.  In some cases, we need to create multiple VLA types to 
represent a given VLA (for canonical types, or qualifiers on array types,
or type merging).  If we need to create multiple types based off of 
the same VLA declaration, we use the new refcounting functionality so they can 
all own the expression. The VLASizeMap in CodeGenFunction then uses the size
expression to identify the group of VLA types based off of the same original
declaration.

I'm not particularly attached to the VLA types owning the expression, 
but we're stuck with at least until someone comes up with a way 
to walk the VLA expressions for a declaration.

I did the parallel fix in ASTContext for DependentSizedArrayType, but I 
haven't really looked closely at it, so there might still be issues 
there.

I'll clean up the code duplication in ASTContext in a followup commit.

llvm-svn: 79071
 2009-08-15 02:50:32 +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
Owen Anderson
41a750271b Update for LLVM API change. 
llvm-svn: 78946
 2009-08-13 21:57:51 +00:00
Fariborz Jahanian
bbd5e8c2cf More toward synthesizing copy assignments. SWIP. 
llvm-svn: 78861
 2009-08-12 23:34:46 +00:00
Mike Stump
938f15b033 Refactor. WIP. Eventually, this will all go into a vtable builder class. 
llvm-svn: 78857
 2009-08-12 23:14:12 +00:00
Mike Stump
82165efbc4 Refactor. 
llvm-svn: 78854
 2009-08-12 23:00:59 +00:00
Fariborz Jahanian
de7d4c264a Patch for synthesizing copy assignment operator. 
WIP.

llvm-svn: 78841
 2009-08-12 21:14:35 +00:00
Mike Stump
cecfe61cd1 Refine vtable building for the secondary vtables to exclude yet more 
cases where a virtual base was already used as a primary base class.
WIP.

llvm-svn: 78820
 2009-08-12 17:42:21 +00:00
Benjamin Kramer
9cd050ab07 LLVMContext is a class now. 
llvm-svn: 78691
 2009-08-11 17:46:57 +00:00
Fariborz Jahanian
9d3405ceab minor refactoring. No change otherwise. 
llvm-svn: 78582
 2009-08-10 18:46:38 +00:00
Fariborz Jahanian
24f38969d5 ir-gen for initialization, in synthesize copy constructor, 
of base/field which have trivial copy constructor.

llvm-svn: 78516
 2009-08-08 23:32:22 +00:00
Anders Carlsson
b8be93fc92 Add support for global initializers. 
llvm-svn: 78515
 2009-08-08 23:24:23 +00:00
Anders Carlsson
f40886acca Refactor some code and implement support for global destructors for static variables. 
llvm-svn: 78507
 2009-08-08 21:45:14 +00:00
Fariborz Jahanian
f6bda5d61e Refactoring of copy ctor ir-gen. No change in functionality. 
llvm-svn: 78489
 2009-08-08 19:31:03 +00:00
Fariborz Jahanian
b68df0bc42 Synthesized copy constructor now generates code for 
copying non-virtual base classes which have non-trivial
constructor. Work in progress.

llvm-svn: 78436
 2009-08-07 23:51:33 +00:00
Fariborz Jahanian
40134e71be More synthesis of copy constructors. Work in progress. 
llvm-svn: 78402
 2009-08-07 20:22:40 +00:00
Mike Stump
7c32eab164 Add support for vcall generation for vtables for virtual bases. WIP. 
llvm-svn: 78357
 2009-08-06 23:48:32 +00:00
Mike Stump
3e62d00271 Also generate the rtti field for virtual bases for vtables. Turn on 
rtti so we can properly test it.  Refactor code a little.  Still a
work in progress.

llvm-svn: 78343
 2009-08-06 21:49:36 +00:00
Mike Stump
c255f3581a More layout for virtual tables for virtual bases. Still in progress. 
llvm-svn: 78314
 2009-08-06 15:50:11 +00:00
Owen Anderson
758428f4e3 Update for LLVM API change. 
llvm-svn: 78259
 2009-08-05 23:18:46 +00:00
Mike Stump
183c3d2f59 Add beginnigs of rtti generation, wire up more of -fno-exceptions. 
llvm-svn: 77751
 2009-07-31 23:15:31 +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
Fariborz Jahanian
aa01d2a532 Patch for future ir-gen for destructor calls. 
llvm-svn: 77608
 2009-07-30 17:49:11 +00:00
Fariborz Jahanian
b77659f4ae Some code cleanup. 
llvm-svn: 77339
 2009-07-28 18:09:28 +00:00
Fariborz Jahanian
5142fbd02e More work toward data member access ir-gen. 
llvm-svn: 77332
 2009-07-28 17:38:28 +00:00
Fariborz Jahanian
127059c7ec Early ir-gen for constructor prologue. This is on going. 
llvm-svn: 76493
 2009-07-20 22:35:22 +00:00
Daniel Dunbar
b6adc43f6e Avoid generation of dead code in a few more situations. 
- Emit variable declarations as "simple", we want to avoid forcing the creation
   of a dummy basic block, but still need to make the variable available for
   later use.

 - With that, we can now skip IRgen for other unreachable statements (which
   don't define a label).

 - Anders, I added two fixmes on calls to EmitVLASize, can you check them?

llvm-svn: 76361
 2009-07-19 06:58:07 +00:00
Owen Anderson
170229f68d Update for LLVM API change, and contextify a bunch of related stuff. 
llvm-svn: 75705
 2009-07-14 23:10:40 +00:00
Owen Anderson
ae86c19e68 Update for LLVM API change. 
llvm-svn: 75446
 2009-07-13 04:10:07 +00:00
Fariborz Jahanian
5f21d2f69a Implemented memmove_collectable API for Next runtime 
when struct variables with GC'able members are copied into.
Will provide a test case later.

llvm-svn: 74984
 2009-07-08 01:18:33 +00:00
Anders Carlsson
44bfcf0f97 Add PushConditionalTempDestruction/PopConditionalTempDestruction. 
llvm-svn: 72835
 2009-06-04 02:22:12 +00:00
Anders Carlsson
4c49bb95f8 More temporary work. 
llvm-svn: 72796
 2009-06-03 19:05:16 +00:00
Anders Carlsson
6d36343ed8 Store more information about live temporaries. No functionality change for now. 
llvm-svn: 72793
 2009-06-03 18:54:26 +00:00
Anders Carlsson
4a7b49b56a Add a new function for emitting new functions. 
llvm-svn: 72656
 2009-05-31 01:40:14 +00:00
Anders Carlsson
8eb93e72f7 Emit destructors correctly for temporaries. 
llvm-svn: 72655
 2009-05-31 00:34:10 +00:00
Anders Carlsson
fd2af0cf86 Add lvalue irgen support for CXXBindTemporaryExpr. 
llvm-svn: 72649
 2009-05-30 23:30:54 +00:00
Anders Carlsson
3be22e27b6 More temporary support. 
llvm-svn: 72648
 2009-05-30 23:23:33 +00:00
Anders Carlsson
0a63741a3f Add code for emitting C++ destructors. Not used yet. 
llvm-svn: 72591
 2009-05-29 21:03:38 +00:00
Mike Stump
df0fe27b66 Fixup the rest of the trivial cases of the codegen of volatile. If 
any body can spot codegen bugs with volatile, or knows of any in the
bug database, let me know.

llvm-svn: 72572
 2009-05-29 15:46:01 +00:00