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541 Commits

Author SHA1 Message Date
Fariborz Jahanian e28342c401 minor refactoring of -fapple-kext stuff. 
llvm-svn: 124837
 2011-02-04 00:32:39 +00:00
Fariborz Jahanian 7cadb2f65b What was I thinking? 
llvm-svn: 124835
 2011-02-04 00:08:13 +00:00
Fariborz Jahanian f7f04458b3 -fapple-kext cannot have 'weak' visibility in this 
abi.

llvm-svn: 124834
 2011-02-04 00:01:24 +00:00
Rafael Espindola af5b92e8f7 Revert 124768. 
This reopens PR99114, but that one at least can be avoided with an #include.
PR9130 cannot.

llvm-svn: 124780
 2011-02-03 06:30:58 +00:00
Anders Carlsson bac84bef65 Don't try to mark virtual members referenced for classes where the key function 
is not defined in the current translation unit. Doing so lead to compile errors
such as PR9114.

Instead, when CodeGen is building the vtable, don't try to emit a definition
for functions that aren't marked used in the current translation unit.
Fixes PR9114.

llvm-svn: 124768
 2011-02-03 02:08:44 +00:00
Rafael Espindola 88ea6ab44f Revert 124633. The linker has been told how to merge available_externally. 
llvm-svn: 124651
 2011-02-01 05:45:26 +00:00
Rafael Espindola 9fa5a67d3d Set visibility for available_externally globals. This is important for two reasons: 
* llvm-link would complains about mismatched visibility
* If we produce a relocation with an available_externally, it is good to know that
it is hidden.

llvm-svn: 124633
 2011-02-01 00:37:17 +00:00
Anders Carlsson a03f3a85cb When building with optimizations, emit vtables where the key is not in the 
current translation unit as available_externally. 

This helps devirtualize the second example in PR3100, comment 18:

struct S { S() {}; virtual void xyzzy(); };
inline void foo(S *s) { s->xyzzy(); }
void bar() { S s; foo(&s); }

This involved four major changes:

1. In DefineUsedVTables, always mark virtual member functions as referenced for
   non-template classes and class template specializations.
2. In CodeGenVTables::ShouldEmitVTableInThisTU return true if optimizations are
   enabled, even if the key function is not implemented in this translation 
   unit. We don't ever do this for code compiled with -fapple-kext, because we
   don't ever want to devirtualize virtual member function calls in that case.
3. Give the correct linkage for vtables where the key function is not defined.
4. Update the linkage for RTTI structures when necessary.

llvm-svn: 124565
 2011-01-30 20:45:54 +00:00
Anders Carlsson 537fdceded Move GetLLVMVisibility to CodeGenModule. 
llvm-svn: 124550
 2011-01-29 20:59:35 +00:00
Anders Carlsson 678632fa42 Add RTTIBuilder::GetAddrOfTypeName which uses the newly added CreateOrReplaceCXXRuntimeVariable. 
Set the visibility for typeinfo names.

llvm-svn: 124548
 2011-01-29 20:36:11 +00:00
Anders Carlsson 265aa7c070 Change CodeGenModule::setTypeVisibility to take a TypeVisibilityKind enum instead of an "IsForRTTI" flag. 
llvm-svn: 124546
 2011-01-29 20:24:48 +00:00
Anders Carlsson 072ef7420a Replace an isa/cast with a dyn_cast. 
llvm-svn: 124542
 2011-01-29 19:41:00 +00:00
Anders Carlsson c6a47895f7 Get rid of an unneeded parameter from setGlobalVisibility. 
llvm-svn: 124541
 2011-01-29 19:39:23 +00:00
Anders Carlsson 93be9a90cc Use CGM.CreateOrReplaceCXXRuntimeVariable in CGVTables.cpp 
llvm-svn: 124538
 2011-01-29 18:25:07 +00:00
Anders Carlsson da80af3681 Add a new function, to be used by CGRTTI, CGVTables and CGVTT (which each has their own copy of this code). 
llvm-svn: 124537
 2011-01-29 18:20:20 +00:00
Ken Dyck a45a70cf73 Replace a literal '8' with getCharWidth(). 
llvm-svn: 124536
 2011-01-29 17:53:12 +00:00
Anders Carlsson fd4834061c Remove IsDefinition from CodeGenModule::setTypeVisibility; it is always true. 
llvm-svn: 124529
 2011-01-29 05:26:32 +00:00
Anders Carlsson 571e2ad042 Mark VTables and RTTI data linkonce_odr instead of weak_odr, with the exception of explicit template instantiations, which have to be weak_odr. 
This fixes PR6996.

llvm-svn: 124089
 2011-01-24 00:46:19 +00:00
Benjamin Kramer 1e1888979b Use a FunctionType::get overload that doesn't require an empty vector. 
llvm-svn: 124029
 2011-01-22 12:15:57 +00:00
Rafael Espindola d661a853fd Add unnamed_addr in CreateRuntimeVariable. 
llvm-svn: 123773
 2011-01-18 21:07:57 +00:00
Ken Dyck 9a6486934c Replace calls to CharUnits::fromQuantity() with ones to 
ASTContext::toCharUnitsFromBits() when converting from bit sizes to char units.

llvm-svn: 123720
 2011-01-18 02:01:14 +00:00
Rafael Espindola 2e217d6555 More unnamed_addr. 
llvm-svn: 123681
 2011-01-17 22:22:52 +00:00
Rafael Espindola de089d462c merge strings created by 
const NSConstantString *appKey =  @"MyApp";

llvm-svn: 123680
 2011-01-17 22:11:21 +00:00
Rafael Espindola e79d43da3b Add unnamed_addr to the special strings created by 
__builtin___CFStringMakeConstantString
This fixes PR8993. A darwin expert might want to check that this is safe.

llvm-svn: 123658
 2011-01-17 16:31:00 +00:00
Peter Collingbourne 0ff0b37627 Move name mangling support from CodeGen to AST. In the 
process, perform a number of refactorings:

- Move MiscNameMangler member functions to MangleContext
- Remove GlobalDecl dependency from MangleContext
- Make MangleContext abstract and move Itanium/Microsoft functionality
  to their own classes/files
- Implement ASTContext::createMangleContext and have CodeGen use it

No (intended) functionality change.

llvm-svn: 123386
 2011-01-13 18:57:25 +00:00