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path: root/include/llvm/GlobalValue.h
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* Add a new "available_externally" linkage type. This is intendedChris Lattner2009-04-131-3/+9
| | | | | | | | | 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
* It makes no sense to have a ODR version of commonDuncan Sands2009-03-111-11/+4
| | | | | | | linkage, so remove it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66690 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the one-definition-rule version of extern_weakDuncan Sands2009-03-111-12/+4
| | | | | | | | linkage: this linkage type only applies to declarations, but ODR is only relevant to globals with definitions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66650 91177308-0d34-0410-b5e6-96231b3b80d8
* make GlobalValue::removeDeadConstantUsers() const.Chris Lattner2009-03-091-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66403 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce new linkage types linkonce_odr, weak_odr, common_odrDuncan Sands2009-03-071-22/+62
| | | | | | | | | | | | | | | | | | | | | | 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
* Add the private linkage.Rafael Espindola2009-01-151-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename isWeakForLinker to mayBeOverridden. Use itDuncan Sands2008-09-291-3/+4
| | | | | | | | 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
* Add GlobalValue::{removeFromParent,eraseFromParent}Daniel Dunbar2008-08-291-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55529 91177308-0d34-0410-b5e6-96231b3b80d8
* Add predicate for GhostLinkage, used by the JITNate Begeman2008-07-251-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54027 91177308-0d34-0410-b5e6-96231b3b80d8
* Add convenient helper for checking whether global is weak in linker senseAnton Korobeynikov2008-07-051-0/+9
| | | | | | having weak or linkonce or common or extweak LLVM linkage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53158 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor code to copy global value attributes likeDuncan Sands2008-05-261-0/+4
| | | | | | | | | | | | | | | | the section or the visibility from one global value to another: copyAttributesFrom. This is particularly useful for duplicating functions: previously this was done by explicitly copying each attribute in turn at each place where a new function was created out of an old one, with the result that obscure attributes were regularly forgotten (like the collector or the section). Hopefully now everything is uniform and nothing is forgotten. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51567 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove warnings about unused parameters and shadowed variables.Bill Wendling2008-05-191-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51266 91177308-0d34-0410-b5e6-96231b3b80d8
* Add CommonLinkage; currently tentative definitionsDale Johannesen2008-05-141-1/+3
| | | | | | | | | | | | are represented as "weak", but there are subtle differences in some cases on Darwin, so we need both. The intent is that "common" will behave identically to "weak" unless somebody changes their target to do something else. No functional change as yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51118 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't attribute in file headers anymore. See llvmdev for theChris Lattner2007-12-291-2/+2
| | | | | | | | discussion of this change. Boy are my fingers tired. ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverting dtor devirtualization patch.Gordon Henriksen2007-12-101-5/+4
| | | | | | | _sabre_: it has a major problem: by the time ~Value is run, all of the "parts" of the derived classes have been destroyed _sabre_: the vtable lives to fight another day git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44760 91177308-0d34-0410-b5e6-96231b3b80d8
* Devirtualizing Value destructor (PR889). Patch by Pawel Kunio!Gordon Henriksen2007-12-091-4/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44747 91177308-0d34-0410-b5e6-96231b3b80d8
* Change casts from old style to new style. This helps document the detailsReid Spencer2007-08-121-1/+1
| | | | | | | | better, gives the compiler a chance to validate the cast and reduces warnings if the user turns on -Wold-style-cast option. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41033 91177308-0d34-0410-b5e6-96231b3b80d8
* Here is the bulk of the sanitizing.Gabor Greif2007-07-051-2/+2
| | | | | | | Almost all occurrences of "bytecode" in the sources have been eliminated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37913 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix commentAnton Korobeynikov2007-04-301-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36596 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement protected visibility. This partly implements PR1363. LinkerAnton Korobeynikov2007-04-291-2/+6
| | | | | | | should be taught to deal with protected symbols. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36565 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement review feedback. Aliasees can be either GlobalValue's orAnton Korobeynikov2007-04-281-10/+0
| | | | | | | bitcasts of them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36537 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement aliases. This fixes PR1017 and it's dependent bugs. CFE partAnton Korobeynikov2007-04-251-1/+12
| | | | | | | will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36435 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement review feedback.Jeff Cohen2007-04-221-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36342 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix breakage of bytecode reader when built with VC++.Jeff Cohen2007-04-211-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36303 91177308-0d34-0410-b5e6-96231b3b80d8
* merge several fields in GlobalValue to use the same word, move CallingConvChris Lattner2007-04-171-7/+7
| | | | | | | | | | field into SubclassData in Value. This shrinks GlobalVAlue from 48->40 bytes, Function from 88->76, and GlobalVariable from 76->68. This trims 4640 bytes off my testcase, reading a bc file without materializing any functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36192 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename Value::getValueType to getValueID, to avoid confusion withDan Gohman2007-04-131-2/+2
| | | | | | | other things named getValueType. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35964 91177308-0d34-0410-b5e6-96231b3b80d8
* Rework GlobalValue::removeDeadConstantUsers to always remove dead constantChris Lattner2007-02-251-4/+0
| | | | | | | | | | | exprs hanging off a global, even if the global is not otherwise dead. This requires some tricky iterator gymnastics. This implements Transforms/GlobalOpt/constantexpr-dangle.ll by deleting a constantexpr that made it appear that the address of the function was taken. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34608 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch ValueSymbolTable to use StringMap<Value*> instead of ↵Chris Lattner2007-02-121-2/+4
| | | | | | | | | | std::map<std::string, Value*> as its main datastructure. There are many improvements yet to be made, but this speeds up opt --std-compile-opts on 447.dealII by 7.3%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34193 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoidReid Spencer2007-01-301-3/+3
| | | | | | | confusion with external linkage types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33663 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some comments, fix an 80 cols violation.Reid Spencer2007-01-271-12/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33576 91177308-0d34-0410-b5e6-96231b3b80d8
* * PIC codegen for X86/Linux has been implementedAnton Korobeynikov2007-01-121-2/+11
| | | | | | | | | * PIC-aware internal structures in X86 Codegen have been refactored * Visibility (default/weak) has been added * Docs fixes (external weak linkage, visibility, formatting) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33136 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some 80 col violations.Reid Spencer2006-12-061-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32286 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding dllimport, dllexport and external weak linkage types.Anton Korobeynikov2006-09-141-11/+17
| | | | | | | | | | DLL* linkages got full (I hope) codegeneration support in C & both x86 assembler backends. External weak linkage added for future use, we don't provide any codegeneration, etc. support for it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30374 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for putting globals in a particular sectionChris Lattner2005-11-121-4/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24309 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure to initialize the alignment fieldChris Lattner2005-11-061-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24222 91177308-0d34-0410-b5e6-96231b3b80d8
* allow functions and modules to have an explicit alignmentChris Lattner2005-11-061-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24209 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some dead argument names which irritates GCC at certain warning levels.Chris Lattner2005-10-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23979 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing whitespaceMisha Brukman2005-04-211-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21408 91177308-0d34-0410-b5e6-96231b3b80d8
* Add doxygen comments, patch contributed by Evan Jones.Chris Lattner2005-04-211-6/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21397 91177308-0d34-0410-b5e6-96231b3b80d8
* Adjust to changes in the User class.Chris Lattner2005-01-291-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19888 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an accessorChris Lattner2004-11-151-2/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17865 91177308-0d34-0410-b5e6-96231b3b80d8
* Add GhostLinkage for marking functions before they're fully materializedMisha Brukman2004-11-141-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17747 91177308-0d34-0410-b5e6-96231b3b80d8
* Change method to return void. Inline dtorChris Lattner2004-07-191-5/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14982 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typeos in comments.Reid Spencer2004-07-181-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14954 91177308-0d34-0410-b5e6-96231b3b80d8
* bug 122:Reid Spencer2004-07-171-4/+18
| | | | | | | | - derive from Constant - declare needed overrides from Constant class git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14920 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement a new method useful for things like the inlinerChris Lattner2004-07-121-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14768 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixes for PR114: Thanks to Reid Spencer!Chris Lattner2003-11-161-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10029 91177308-0d34-0410-b5e6-96231b3b80d8
* Put all LLVM code into the llvm namespace, as per bug 109.Brian Gaeke2003-11-111-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
* Added LLVM copyright header (for lack of a better term).John Criswell2003-10-201-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9304 91177308-0d34-0410-b5e6-96231b3b80d8
* Add weak linking typeChris Lattner2003-10-161-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9168 91177308-0d34-0410-b5e6-96231b3b80d8
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