Commit Graph

377 Commits

Author SHA1 Message Date
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
Mike Stump 79ed590c85 Add code to skip the emission of available externally functions at -O0. WIP.
llvm-svn: 92749
2010-01-05 18:48:04 +00:00
Chris Lattner 3f8e5dd898 strength reduce this call away.
llvm-svn: 92253
2009-12-29 07:49:13 +00:00
Chris Lattner 5e124bf913 this form of SetDebugLocation is about to go away, add some #includes that
are about to not come in implicitly.

llvm-svn: 92228
2009-12-28 21:44:41 +00:00
Eli Friedman 2e06e8bbcc Some small improvements to dead code elimination; helps a bit on
LLVM-Code-Symbols test.

llvm-svn: 92152
2009-12-25 05:29:40 +00:00
Jeffrey Yasskin 1615d45daa Un-namespace-qualify llvm_unreachable. It's a macro, so the qualification gave
no extra safety anyway.

llvm-svn: 91207
2009-12-12 05:05:38 +00:00
Eli Friedman b095e15af4 Fix for PR5714: make sure globals that will be modified aren't marked const.
llvm-svn: 91156
2009-12-11 21:23:03 +00:00
Benjamin Kramer b11118bd0b Random string-related cleanups.
llvm-svn: 91119
2009-12-11 13:33:18 +00:00
Anders Carlsson 781161dc55 Make sure that explicitly instantiated functions get the right linkage.
llvm-svn: 91069
2009-12-10 22:25:34 +00:00
Eli Friedman 4f678f3de1 Fix for PR5709: use the computed type of the declaration instead of the
type of the builtin when generating the function declaration for a builtin
library call.

llvm-svn: 90936
2009-12-09 03:05:59 +00:00
Eli Friedman f2c79b6b9c Misc key function fixes.
llvm-svn: 90831
2009-12-08 03:56:49 +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
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 3efc6e6f46 Add rudimentary support for member pointers to CGDebugInfo.
llvm-svn: 90711
2009-12-06 18:00:51 +00:00
Anders Carlsson a30e1750cd Don't emit explicit specializations of static member variable declarations.
llvm-svn: 90624
2009-12-04 23:50:01 +00:00
Anders Carlsson b1d3f7c909 Have ASTRecordLayout keep track of the key function, in preparation of fixing a synthetic ctor/dtor bug.
llvm-svn: 90168
2009-11-30 23:41:22 +00:00
Daniel Dunbar 2c11cd156e Don't try to generate common globals for C++ files, instead of depending on the FE to set NoCommon, and simplify CodeGenOptions initialization.
llvm-svn: 90119
2009-11-30 08:40:34 +00:00
Eli Friedman 84a7e347bf Simplify and fix up the handling of implicit constructors, copy assignment
operators, and destructors.  Avoids generating declarations/definitions of
trivial constructors/destructors, and makes sure the trivial copy assignment
operator is generated when necessary.

llvm-svn: 89943
2009-11-26 07:40:08 +00:00
Eli Friedman 8a5f75ed5d Use new getLinkage() method to correctly compute whether a variable has
internal linkage.  Fixes PR5433.

llvm-svn: 89931
2009-11-26 02:52:12 +00:00
Anders Carlsson 0ade9715f2 Ignore constructor member templates in CodeGenModule::EmitTopLevelDecl.
llvm-svn: 89737
2009-11-24 05:16:24 +00:00
Daniel Dunbar e949e6cced Mangler: Lift shouldMangleDeclName predicate out of CXXNameMangler::mangle.
- Sometimes we have to mangle things we wouldn't normally (e.g., because they appear in a template expression).

 - This also tidies up the predicate to be more obvious what is getting mangled.

llvm-svn: 89555
2009-11-21 09:14:52 +00:00
Daniel Dunbar e128dd18ab IRgen: Switch the C++ mangler interfaces to take the SmallVector to write into,
instead of requiring clients to make a raw_svector_ostream, which is just an
implementation detail.

llvm-svn: 89548
2009-11-21 09:06:22 +00:00
Daniel Dunbar ef5d75afeb Sink free mangle* methods into MangleContext.
llvm-svn: 89547
2009-11-21 09:06:10 +00:00
Alexis Hunt 96d5c76498 Added rudimentary C++0x attribute support.
The following attributes are currently supported in C++0x attribute
lists (and in GNU ones as well):
 - align() - semantics believed to be conformant to n3000, except for
   redeclarations and what entities it may apply to
 - final - semantics believed to be conformant to CWG issue 817's proposed
   wording, except for redeclarations
 - noreturn - semantics believed to be conformant to n3000, except for
   redeclarations
 - carries_dependency - currently ignored (this is an optimization hint)

llvm-svn: 89543
2009-11-21 08:43:09 +00:00
Mike Stump a7a1b7e780 Fixup key function calculations.
llvm-svn: 89412
2009-11-20 00:02:19 +00:00