Commit Graph

148 Commits

Author SHA1 Message Date
Chris Lattner 140a754ab2 implement linker support for BlockAddress.
llvm-svn: 85700
2009-11-01 02:46:39 +00:00
Dan Gohman 648c836f6c Remove unnecessary #include.
llvm-svn: 81636
2009-09-12 22:24:25 +00:00
Devang Patel 794a40dd61 There is not any need to copy metadata while merging modules.
llvm-svn: 80941
2009-09-03 20:35:57 +00:00
Chris Lattner c521f54198 Prune #includes from llvm/Linker.h and llvm/System/Path.h,
forcing them down into various .cpp files.

This change also:
1. Renames TimeValue::toString() and Path::toString() to ::str()
   for similarity with the STL.
2. Removes all stream insertion support for sys::Path, forcing
   clients to call .str().
3. Removes a use of Config/alloca.h from bugpoint, using smallvector
   instead.
4. Weans llvm-db off <iostream>

sys::Path really needs to be gutted, but I don't have the desire to
do it at this point.

llvm-svn: 79869
2009-08-23 22:45:37 +00:00
Chris Lattner b25de3ff60 eliminate the "Value" printing methods that print to a std::ostream.
This required converting a bunch of stuff off DOUT and other cleanups.

llvm-svn: 79819
2009-08-23 04:37:46 +00:00
Devang Patel 5c310be0ff Link NamedMDNodes.
llvm-svn: 78696
2009-08-11 18:01:24 +00:00
Devang Patel 4d4a2e09a9 Link metadata.
llvm-svn: 78652
2009-08-11 06:46:31 +00:00
Owen Anderson 5a1acd9912 Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are
metadata related, which I'm waiting on to avoid conflicting with Devang.

llvm-svn: 77721
2009-07-31 20:28:14 +00:00
Owen Anderson 4056ca9568 Move types back to the 2.5 API.
llvm-svn: 77516
2009-07-29 22:17:13 +00:00
Benjamin Kramer 21d75078b5 Remove now unused Context variables.
llvm-svn: 77495
2009-07-29 19:14:17 +00:00
Owen Anderson 487375e9a2 Move ConstantExpr to 2.5 API.
llvm-svn: 77494
2009-07-29 18:55:55 +00:00
Owen Anderson 4aa3295a65 Return ConstantVector to 2.5 API.
llvm-svn: 77366
2009-07-28 21:19:26 +00:00
Owen Anderson c2c7932c64 Change ConstantArray to 2.5 API.
llvm-svn: 77347
2009-07-28 18:32:17 +00:00
Owen Anderson 45308b578b Move ConstantStruct back to 2.5 API.
llvm-svn: 77266
2009-07-27 22:29:26 +00:00
Daniel Dunbar e03eecb75f Remove Value::{isName, getNameRef}.
Also, change MDString to use a StringRef.

llvm-svn: 77098
2009-07-25 23:55:21 +00:00
Daniel Dunbar 4975db6276 Initial update to VMCore to use Twines for string arguments.
- The only meat here is in Value.{h,cpp} the rest is essential 'const
   std::string &' -> 'const Twine &'.

llvm-svn: 77048
2009-07-25 04:41:11 +00:00
Daniel Dunbar 84b5f6efb7 Switch ValueSymbolTable to StringRef based API.
llvm-svn: 76894
2009-07-23 18:52:12 +00:00
Owen Anderson 47db941fd3 Get rid of the Pass+Context magic.
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
Bill Wendling a3c6f6bffa Add plumbing for the `linker_private' linkage type. This type is meant for
"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.

This is plumbing, so we don't have a use of it yet. More to come, etc.

llvm-svn: 76385
2009-07-20 01:03:30 +00:00
Torok Edwin fbcc663cbf llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
2009-07-14 16:55:14 +00:00
Torok Edwin 56d0659726 assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
2009-07-11 20:10:48 +00:00
Owen Anderson b17f32945f Switch GlobalVariable ctors to a sane API, where *either* a context or a module is required.
llvm-svn: 75025
2009-07-08 19:03:57 +00:00
Owen Anderson 5948fdf68b Push LLVMContext through GlobalVariables and IRBuilder.
llvm-svn: 74985
2009-07-08 01:26:06 +00:00
Owen Anderson fac7b59579 LLVM Context-ification.
llvm-svn: 74948
2009-07-07 21:07:14 +00:00
Chris Lattner 184f1be4a8 Add a new "available_externally" linkage type. This is intended
to support C99 inline, GNU extern inline, etc.  Related bugzilla's
include PR3517, PR3100, & PR2933.  Nothing uses this yet, but it
appears to work.

llvm-svn: 68940
2009-04-13 05:44:34 +00:00
Duncan Sands d725c99199 Apply ODR linkage changes accidentally dropped during
final cleaning.  This fixes a bunch of testsuite failures.

llvm-svn: 66380
2009-03-08 13:35:23 +00:00
Duncan Sands 12da8ce3d2 Introduce new linkage types linkonce_odr, weak_odr, common_odr
and extern_weak_odr.  These are the same as the non-odr versions,
except that they indicate that the global will only be overridden
by an *equivalent* global.  In C, a function with weak linkage can
be overridden by a function which behaves completely differently.
This means that IP passes have to skip weak functions, since any
deductions made from the function definition might be wrong, since
the definition could be replaced by something completely different
at link time.   This is not allowed in C++, thanks to the ODR
(One-Definition-Rule): if a function is replaced by another at
link-time, then the new function must be the same as the original
function.  If a language knows that a function or other global can
only be overridden by an equivalent global, it can give it the
weak_odr linkage type, and the optimizers will understand that it
is alright to make deductions based on the function body.  The
code generators on the other hand map weak and weak_odr linkage
to the same thing.

llvm-svn: 66339
2009-03-07 15:45:40 +00:00
Mikhail Glushenkov 59a5afa996 Oops.
llvm-svn: 65942
2009-03-03 10:04:23 +00:00
Mikhail Glushenkov 766d48947a 80-column violation + trailing whitespace.
llvm-svn: 65936
2009-03-03 07:22:23 +00:00
Rafael Espindola 6de96a1b5d Add the private linkage.
llvm-svn: 62279
2009-01-15 20:18:42 +00:00
Anton Korobeynikov 006659f08d Also properly handle linking of strong alias and weak global
llvm-svn: 57595
2008-10-15 20:10:50 +00:00
Anton Korobeynikov 82dd61114d Properly handle linking of strong alias with weak function, this fixes PR2883
llvm-svn: 57594
2008-10-15 20:10:08 +00:00
Duncan Sands 08d91178e9 Rename isWeakForLinker to mayBeOverridden. Use it
instead of hasWeakLinkage in a bunch of optimization
passes.

llvm-svn: 56782
2008-09-29 11:25:42 +00:00
Anton Korobeynikov 1a1140429e Make safer variant of alias resolution routine to be default
llvm-svn: 56005
2008-09-09 20:05:04 +00:00
Anton Korobeynikov ac2c655808 Fix incorrect linker behaviour: we shouldn't resolve weak aliases.
llvm-svn: 55997
2008-09-09 18:23:48 +00:00
Chris Lattner 0ead7a50b2 Reimplement LinkFunctionProtos in terms of GetLinkageResult. This fixes
the second half of link-global-to-func.ll and causes some minor changes in
messages.

There are two TODOs here.  First, this causes a regression in 
2008-07-06-AliasWeakDest.ll, which is now failing (so I xfailed it).  Anton,
I would really appreciate it if you could take a look at this.  It should be
a matter of adding proper alias support to GetLinkageResult, and was probably
already a latent bug that would manifest with globals.

The second todo is to reimplement LinkAlias in the same pattern as 
function and global linking.  This should be pretty straight-forward for 
someone who knows aliases, but isn't a requirement for correctness.

llvm-svn: 53548
2008-07-14 07:23:24 +00:00
Chris Lattner c08e7a00c3 don't do any linkage, not even type resolution, of symbols that have
internal linkage.

llvm-svn: 53547
2008-07-14 06:52:19 +00:00
Chris Lattner 34fc5a0eaa implement linking of globals to functions, in one direction
(replacing a function with a global).  This is needed when building
llvm itself with LTO on darwin, because of the EXPLICIT_SYMBOL hack
in lib/system/DynamicLibrary.cpp.

Implementation of linking the other way will need to wait for a 
cleanup of LinkFunctionProtos.

llvm-svn: 53546
2008-07-14 06:49:45 +00:00
Chris Lattner 177a3008e1 wrap long lines, remove some code from a non-assert build.
llvm-svn: 53545
2008-07-14 05:52:33 +00:00
Chris Lattner 683ed3d94e The source and dest of an alias are *not* required to have the same type,
though that would be nice and make sense :).  Patch by Nathan Keynes!

llvm-svn: 53387
2008-07-10 01:09:33 +00:00
Dan Gohman 38740a98b2 Make DenseMap's insert return a pair, to more closely resemble std::map.
llvm-svn: 53177
2008-07-07 17:46:23 +00:00
Anton Korobeynikov a970df57bc Add convenient helper for checking whether global is weak in linker sense
having weak or linkonce or common or extweak LLVM linkage.

llvm-svn: 53158
2008-07-05 23:48:30 +00:00
Anton Korobeynikov 9cd0b50f16 Override weak stuff during linking of aliases. This fixes PR2463.
llvm-svn: 53156
2008-07-05 23:33:22 +00:00
Anton Korobeynikov 1bb56dedf5 Properly link alias and function decls. This fixes PR2146
llvm-svn: 53154
2008-07-05 23:03:21 +00:00
Chris Lattner b32a9ef00f when linking globals, make sure to preserve the address space of the global.
llvm-svn: 52810
2008-06-27 03:10:24 +00:00
Chris Lattner d53bd2da98 Fix an error handling redefinition of linkonce functions where the
types differ.  Patch by Nathan Keynes!

llvm-svn: 52527
2008-06-20 05:29:39 +00:00
Chris Lattner 56cdea6b3e Add a missing ~ (dtor became ctor) which caused crashes on a bunch of stuff.
llvm-svn: 52374
2008-06-16 23:06:51 +00:00
Chris Lattner 9be15893c5 stop making PATypeHolder's so crazily.
llvm-svn: 52364
2008-06-16 21:17:12 +00:00
Chris Lattner eee6f995dd use a real associative container for type association instead of using
a vector with a linear search.  This speeds up the linking testcase 
in PR1860 from 0.965s to 0.385s on my system.

llvm-svn: 52357
2008-06-16 21:00:18 +00:00
Chris Lattner fe677e9570 bail out sooner if we have two concrete but different types.
llvm-svn: 52351
2008-06-16 20:03:01 +00:00