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path: root/lib/Linker/LinkModules.cpp
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2010-07-21Make NamedMDNode not be a subclass of Value, and simplify the interfaceDan Gohman
for creating and populating NamedMDNodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Revert r107205 and r107207.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Introducing the "linker_weak" linkage type. This will be used for Objective-CBill Wendling
metadata types which should be marked as "weak", but which the linker will remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is defined like this: .globl l_objc_msgSend_fixup_alloc .weak_definition l_objc_msgSend_fixup_alloc .section __DATA, __objc_msgrefs, coalesced .align 3 l_objc_msgSend_fixup_alloc: .quad _objc_msgSend_fixup .quad L_OBJC_METH_VAR_NAME_1 This is different from the "linker_private" linkage type, because it can't have the metadata defined with ".weak_definition". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16Introduce isOpaqueTy and use it rather than isa<OpaqueType>. Also, move someDuncan Sands
methods to try to have the type predicates be more logically positioned. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96349 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06Linker should not remap null operands of metadataVictor Hernandez
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95468 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27Need to recurse for all operands of function-local metadata; and handle ↵Victor Hernandez
Instructions (which map to themselves) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94691 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27merge two ifsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94650 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27Linker needs to do deep-copy of function-local metadata to update references ↵Victor Hernandez
to function arguments git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94632 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-22Remove MetadataBase class because it is not adding significant value.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94243 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-09Fixed linking of modules containing aliases to constant bitcasts. Existing ↵David Chisnall
behaviour first tried to replace the aliases with the global that they aliased (rather than the bitcast), causing a crash on an assert because the types didn't match. When this was fixed, it then did the same thing creating the new alias (creating an alias with a different type to its aliasee). Linking modules containing aliases to GEPs is still not quite right. GEPs that are equivalent to bitcasts will be replaced by bitcasts, GEPs that are not will just break. Aliases to GEPs that are not equivalent to bitcasts are horribly broken anyway (it might be worth adding an assert when creating the alias to prevent these being created; they just cause problems later). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93052 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05Change errs() to dbgs().David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92628 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31rename "elements" of metadata to "operands". "Elements" areChris Lattner
things that occur in types. "operands" are things that occur in values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92322 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-28Remove dead store.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92192 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01implement linker support for BlockAddress.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-12Remove unnecessary #include.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81636 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03There is not any need to copy metadata while merging modules.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80941 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23Prune #includes from llvm/Linker.h and llvm/System/Path.h,Chris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79869 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23eliminate the "Value" printing methods that print to a std::ostream.Chris Lattner
This required converting a bunch of stuff off DOUT and other cleanups. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79819 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Link NamedMDNodes.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78696 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Link metadata.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Move a few more APIs back to 2.5 forms. The only remaining ones left to ↵Owen Anderson
change back are metadata related, which I'm waiting on to avoid conflicting with Devang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77721 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Move types back to the 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77516 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Remove now unused Context variables.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77495 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Move ConstantExpr to 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Return ConstantVector to 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Change ConstantArray to 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27Move ConstantStruct back to 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77266 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25Remove Value::{isName, getNameRef}.Daniel Dunbar
Also, change MDString to use a StringRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25Initial update to VMCore to use Twines for string arguments.Daniel Dunbar
- The only meat here is in Value.{h,cpp} the rest is essential 'const std::string &' -> 'const Twine &'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77048 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23Switch ValueSymbolTable to StringRef based API.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76894 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Get rid of the Pass+Context magic.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Add plumbing for the `linker_private' linkage type. This type is meant forBill Wendling
"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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76385 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.Torok Edwin
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"). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11assert(0) -> LLVM_UNREACHABLE.Torok Edwin
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08Switch GlobalVariable ctors to a sane API, where *either* a context or a ↵Owen Anderson
module is required. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75025 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08Push LLVMContext through GlobalVariables and IRBuilder.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74985 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-07LLVM Context-ification.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74948 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13Add a new "available_externally" linkage type. This is intendedChris Lattner
to support C99 inline, GNU extern inline, etc. Related bugzilla's include PR3517, PR3100, & PR2933. Nothing uses this yet, but it appears to work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68940 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08Apply ODR linkage changes accidentally dropped duringDuncan Sands
final cleaning. This fixes a bunch of testsuite failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66380 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-07Introduce new linkage types linkonce_odr, weak_odr, common_odrDuncan Sands
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66339 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03Oops.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65942 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-0380-column violation + trailing whitespace.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65936 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15Add the private linkage.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Also properly handle linking of strong alias and weak globalAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57595 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Properly handle linking of strong alias with weak function, this fixes PR2883Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57594 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-29Rename isWeakForLinker to mayBeOverridden. Use itDuncan Sands
instead of hasWeakLinkage in a bunch of optimization passes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56782 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Make safer variant of alias resolution routine to be defaultAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56005 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09Fix incorrect linker behaviour: we shouldn't resolve weak aliases.Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55997 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-14Reimplement LinkFunctionProtos in terms of GetLinkageResult. This fixesChris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53548 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-14don't do any linkage, not even type resolution, of symbols that have Chris Lattner
internal linkage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53547 91177308-0d34-0410-b5e6-96231b3b80d8
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