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430 Commits

Author SHA1 Message Date
Douglas Gregor eadd3cace9 Eliminate excessive PCH deserialization caused by the search for 
__cxxabiv1::__fundamental_type_info in every translation
unit. Previously, we would perform name lookup for
__cxxabiv1::__fundamental_type_info at the end of IRGen for a each
translation unit, to determine whether it was present. If so, we we
produce type information for all of the fundamental types. However,
this name lookup causes PCH deserialization of a significant part of the
translation unit, which has a woeful impact on performance.

With this change, we now look at each record type after we've
generated its vtable to see if it is
__cxxabiv1::__fundamental_type_info. If so, we generate type info for
all of the fundamental types. This works because
__cxxabiv1::__fundamental_type_info should always have a key function
(typically the virtual destructor), that will be defined once in the
support library. The fundamental type information will end up there.

Fixes <rdar://problem/7840011>.

llvm-svn: 100772
 2010-04-08 15:52:03 +00:00
Mon P Wang cc2ab0cdc9 Reapply patch for adding support for address spaces and added a isVolatile field to memcpy, memmove, and memset. 
llvm-svn: 100305
 2010-04-04 03:10:52 +00:00
Mon P Wang f7f3bff646 Revert r100193 since it causes failures in objc in clang 
llvm-svn: 100200
 2010-04-02 18:43:42 +00:00
Mon P Wang 4b82a88764 Reapply patch for adding support for address spaces and added a isVolatile field to memcpy, memmove, and memset. 
llvm-svn: 100193
 2010-04-02 18:04:30 +00:00
Chris Lattner e675d0f924 adjust to IRBuilder change and use faster DebugLoc apis. 
llvm-svn: 100093
 2010-04-01 06:31:43 +00:00
Chris Lattner be49c03ff4 use the new optimized debug info metadata accessors. In 
addition to the inherent win, this eliminates the pointless
cost of going through the name -> mdkind stringmap that we
were paying.

llvm-svn: 99983
 2010-03-31 03:36:01 +00:00
Bob Wilson adb58e32cc Revert Mon Ping's 99930 due to broken llvm-gcc buildbots. 
llvm-svn: 99949
 2010-03-30 22:28:46 +00:00
Mon P Wang 231e99743a Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset 
llvm-svn: 99930
 2010-03-30 21:02:45 +00:00
Rafael Espindola adcc1d18e2 When given the magic class __cxxabiv1::__fundamental_type_info, produce 
the typeinfo for the fundamental types.

Fixes PR6685.

llvm-svn: 99701
 2010-03-27 02:52:14 +00:00
Rafael Espindola fa1708fdea revert 99311. Looks like it broke darwin bootstrap. 
llvm-svn: 99317
 2010-03-23 19:55:22 +00:00
Rafael Espindola 4d3745ade6 Avoid producing implicit methods when we have a explicit template instantiation 
declaration.

llvm-svn: 99311
 2010-03-23 18:56:16 +00:00
Anders Carlsson af82f63b47 Always emit associated thunks when emitting the function itself. Remove getVtableAddressPoint, it's not used. 
llvm-svn: 99252
 2010-03-23 04:31:31 +00:00
Anders Carlsson 8841024a7c Rename MaybeEmitVtable to EmitVTableRelatedData in preparation for making it emit thunks as well. 
llvm-svn: 99251
 2010-03-23 04:15:00 +00:00
Anders Carlsson a864caff8c Rename CGVtableInfo to CodeGenVTables in preparation of adding another VTableInfo class. 
llvm-svn: 99250
 2010-03-23 04:11:45 +00:00
Daniel Dunbar fe06df4bf3 C++: Add support for -fno-use-cxa-atexit. 
- So much typing, so little gain...

Also, rename the __cxx_global_initialization function just to match llvm-gcc.

llvm-svn: 99039
 2010-03-20 04:15:41 +00:00
John McCall 7ec5043c2c Change CodeGenModule to rely on the Module's symbol table instead of 
shadowing it in the GlobalDeclMap.  Eliminates the string-uniquing
requirement for mangled names, which should help C++ codegen times a little.
Forces us to do string lookups instead of pointer lookups, which might hurt
codegen times a little across the board.  We'll see how it plays out.

Removing the string-uniquing requirement implicitly fixes any bugs like
PR6635 which arose from the fact that we had multiple uniquing tables for
different kinds of identifiers.

llvm-svn: 99012
 2010-03-19 23:29:14 +00:00
Douglas Gregor b14d123774 Give explicit template instantiations weak ODR linkage. Former 
iterations of this patch gave explicit template instantiation
link-once ODR linkage, which permitted the back end to eliminate
unused symbols. Weak ODR linkage still requires the symbols to be
generated.

llvm-svn: 98441
 2010-03-13 18:23:07 +00:00
Douglas Gregor 17b76185f1 Re-revert the explicit template instantiation linkage patch. I am beginning to look incompetent 
llvm-svn: 98425
 2010-03-13 03:49:57 +00:00
Douglas Gregor 89cae0f224 Reinstate patch to turn explicit template instantiations into weak symbols 
llvm-svn: 98424
 2010-03-13 03:14:19 +00:00
Douglas Gregor 539bc40906 Revert the linkage change for explicit template instantiations; something is amiss 
llvm-svn: 98332
 2010-03-12 05:13:59 +00:00
Douglas Gregor ee3f72299c Give explicit template instantiations weak linkage (but don't defer 
them). Fixes PR6578.

llvm-svn: 98328
 2010-03-12 04:49:06 +00:00
Rafael Espindola e7113ca907 Delay codegen of vtables when handling implicit instantiations. 
This fixes PR6474.

llvm-svn: 98123
 2010-03-10 02:19:29 +00:00
Benjamin Kramer f0a0f68c79 Add a message to these asserts. 
llvm-svn: 97873
 2010-03-06 09:07:19 +00:00
John McCall beec5a080f Implement __builtin_dwarf_sp_column for i386 (Darwin and not), x86-64 (all), 
and ARM.  Implement __builtin_init_dwarf_reg_size_table for i386 (both) and
x86-64 (all).

llvm-svn: 97859
 2010-03-06 00:35:14 +00:00
Rafael Espindola 2e42fec3a0 Fix PR6473. 
Clang's support for weakref is now better than llvm-gcc's :-)

We don't introduce a new symbol and we correctly mark undefined references weak only if there is no
definition or regular undefined references in the same file.

llvm-svn: 97733
 2010-03-04 18:17:24 +00:00