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* Extend RemapInstruction and friends to take an optional new parameter, a ↵James Molloy2013-05-281-50/+77
| | | | | | | | ValueMaterializer. Extend LinkModules to pass a ValueMaterializer to RemapInstruction and friends to lazily create Functions for lazily linked globals. This is a big win when linking small modules with large (mostly unused) library modules. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182776 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a performance bug in the Linker.Rafael Espindola2013-05-041-11/+22
| | | | | | | | | | | | | Now that we hava a convinient place to keep it, remeber the set of identified structs as we merge modules. This speeds up the linking of all the bitcode files in clang with the gold plugin and -plugin-opt=emit-llvm (i.e., link only, no codegen) from 5:25 minutes to 13.6 seconds! Patch by Xiaofei Wan! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181104 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement Linker::LinkModules with Linker::linkInModule.Rafael Espindola2013-05-041-8/+9
| | | | | | Flipping which one is the implementation will let us optimize linkInModule. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181102 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that Linker.cpp is almost empty, merge it into LinkModules.cpp.Rafael Espindola2013-05-043-37/+9
| | | | | | Also remove unused includes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181100 91177308-0d34-0410-b5e6-96231b3b80d8
* Last batch of cleanups to Linker.h.Rafael Espindola2013-05-041-0/+4
| | | | | | | | Update comments, fix * placement, fix method names that are not used in clang, add a linkInModule that takes a Mode and put it in Linker.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181099 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't construct or delete a module on the Linker.Rafael Espindola2013-05-041-5/+0
| | | | | | | The linker is now responsible only for actually linking the modules, it is up to the clients to create and destroy them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181098 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't store the context in the Linker.Rafael Espindola2013-05-041-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181097 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused members and constructor arguments.Rafael Espindola2013-05-041-11/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181096 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete dead code from the linker.Rafael Espindola2013-05-041-31/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181094 91177308-0d34-0410-b5e6-96231b3b80d8
* This patch breaks up Wrap.h so that it does not have to include all of Filip Pizlo2013-05-011-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | the things, and renames it to CBindingWrapping.h. I also moved CBindingWrapping.h into Support/. This new file just contains the macros for defining different wrap/unwrap methods. The calls to those macros, as well as any custom wrap/unwrap definitions (like for array of Values for example), are put into corresponding C++ headers. Doing this required some #include surgery, since some .cpp files relied on the fact that including Wrap.h implicitly caused the inclusion of a bunch of other things. This also now means that the C++ headers will include their corresponding C API headers; for example Value.h must include llvm-c/Core.h. I think this is harmless, since the C API headers contain just external function declarations and some C types, so I don't believe there should be any nasty dependency issues here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180881 91177308-0d34-0410-b5e6-96231b3b80d8
* Move C++ code out of the C headers and into either C++ headersEric Christopher2013-04-221-0/+1
| | | | | | | or the C++ files themselves. This enables people to use just a C compiler to interoperate with LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180063 91177308-0d34-0410-b5e6-96231b3b80d8
* Specutively revert r178130.Bill Wendling2013-03-271-44/+29
| | | | | | | | | | | | | | | | | | | | This may be causing a failure on some buildbots: Referencing function in another module! tail call fastcc void @_ZL11EvaluateOpstPtRj(i16 zeroext %17, i16* %Vals, i32* %NumVals), !dbg !219 Referencing function in another module! tail call fastcc void @_ZL11EvaluateOpstPtRj(i16 zeroext %19, i16* %Vals, i32* %NumVals), !dbg !221 Broken module found, compilation aborted! Stack dump: 0. Running pass 'Function Pass Manager' on module 'ld-temp.o'. 1. Running pass 'Module Verifier' on function '@_ZL11EvaluateOpstPtRj' clang: error: unable to execute command: Illegal instruction: 4 clang: error: linker command failed due to signal (use -v to see invocation) <rdar://problem/13516485> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178156 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve performance of LinkModules when linking with modules with large ↵James Molloy2013-03-271-29/+44
| | | | | | numbers of functions which link lazily. Instead of creating and destroying function prototypes irrespective of if they are used, only create them if they are used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178130 91177308-0d34-0410-b5e6-96231b3b80d8
* The Linker interface has some dead code after the cleanup in r172749Eli Bendersky2013-03-192-22/+1
| | | | | | | | (and possibly others). The attached patch removes it, and tries to update comments accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177406 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up out-of-date comments and some stray whitespaceEli Bendersky2013-03-081-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176729 91177308-0d34-0410-b5e6-96231b3b80d8
* Add static cast to unsigned char whenever a character classification ↵Guy Benyei2013-02-121-1/+2
| | | | | | function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175006 91177308-0d34-0410-b5e6-96231b3b80d8
* [Linker] Kill Linker::LoadObject which is dead, and drop the BitReader ↵Daniel Dunbar2013-01-182-24/+1
| | | | | | dependency again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172838 91177308-0d34-0410-b5e6-96231b3b80d8
* The IR linker still depends on the bitcode reader.Benjamin Kramer2013-01-181-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172824 91177308-0d34-0410-b5e6-96231b3b80d8
* [Linker] Drop some now-dead component dependencies.Daniel Dunbar2013-01-171-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172759 91177308-0d34-0410-b5e6-96231b3b80d8
* [Linker] Drop support for IR-level extended linking support (archives, etc.).Daniel Dunbar2013-01-174-482/+0
| | | | | | | | - This code is dead, and the "right" way to get this support is to use the platform-specific linker-integrated LTO mechanisms, or the forthcoming LLVM linker. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172749 91177308-0d34-0410-b5e6-96231b3b80d8
* [IR] Add 'Append' and 'AppendUnique' module flag behaviors.Daniel Dunbar2013-01-161-0/+28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172659 91177308-0d34-0410-b5e6-96231b3b80d8
* [Linker] Change module flag linking to be more extensible.Daniel Dunbar2013-01-161-133/+97
| | | | | | | | | | - Instead of computing a bunch of buckets of different flag types, just do an incremental link resolving conflicts as they arise. - This also has the advantage of making the link result deterministic and not dependent on map iteration order. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172634 91177308-0d34-0410-b5e6-96231b3b80d8
* [Linker] Drop asserts that are embedded in cast<> and now checked by the ↵Daniel Dunbar2013-01-151-11/+0
| | | | | | verifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172550 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a copy/paste error in the IR Linker, casting an ArrayType instead of a ↵Joey Gouly2013-01-101-1/+1
| | | | | | VectorType. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172054 91177308-0d34-0410-b5e6-96231b3b80d8
* Move TypeFinder.h into the IR tree, it clearly belongs with the IR library.Chandler Carruth2013-01-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171749 91177308-0d34-0410-b5e6-96231b3b80d8
* Move all of the header files which are involved in modelling the LLVM IRChandler Carruth2013-01-024-7/+7
| | | | | | | | | | | | | | | | | | | | | into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the new script to sort the includes of every file under lib.Chandler Carruth2012-12-034-11/+11
| | | | | | | | | | | | | | | | | Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the dependent libraries feature.Bill Wendling2012-11-272-38/+0
| | | | | | | The dependent libraries feature was never used and has bit-rotted. Remove it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168694 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the "findUsedStructTypes" functionality outside of the Module class.Bill Wendling2012-08-031-4/+5
| | | | | | | | | | The "findUsedStructTypes" method is very expensive to run. It needs to be optimized so that LTO can run faster. Splitting this method out of the Module class will help this occur. For instance, it can keep a list of seen objects so that it doesn't process them over and over again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161228 91177308-0d34-0410-b5e6-96231b3b80d8
* Extend the IL for selecting TLS models (PR9788)Hans Wennborg2012-06-231-2/+2
| | | | | | | | | | | | | | | This allows the user/front-end to specify a model that is better than what LLVM would choose by default. For example, a variable might be declared as @x = thread_local(initialexec) global i32 42 if it will not be used in a shared library that is dlopen'ed. If the specified model isn't supported by the target, or if LLVM can make a better choice, a different model may be used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159077 91177308-0d34-0410-b5e6-96231b3b80d8
* Supply a C interface to the "LinkModules" method.Bill Wendling2012-05-091-0/+15
| | | | | | | Patch by Andrew Wilkins! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156469 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a flag to the struct type finder to collect only those types which haveBill Wendling2012-04-211-2/+2
| | | | | | | names. This saves collecting types we normally don't care about. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155300 91177308-0d34-0410-b5e6-96231b3b80d8
* It's possible for two types, which are isomorphic, to be added to theBill Wendling2012-03-231-6/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | destination module, but one of them isn't used in the destination module. If another module comes along and the uses the unused type, there could be type conflicts when the modules are finally linked together. (This happened when building LLVM.) The test that was reduced is: Module A: %Z = type { %A } %A = type { %B.1, [7 x x86_fp80] } %B.1 = type { %C } %C = type { i8* } declare void @func_x(%C*, i64, i64) declare void @func_z(%Z* nocapture) Module B: %B = type { %C.1 } %C.1 = type { i8* } %A.2 = type { %B.3, [5 x x86_fp80] } %B.3 = type { %C.1 } define void @func_z() { %x = alloca %A.2, align 16 %y = getelementptr inbounds %A.2* %x, i64 0, i32 0, i32 0 call void @func_x(%C.1* %y, i64 37, i64 927) nounwind ret void } declare void @func_x(%C.1*, i64, i64) declare void @func_y(%B* nocapture) (Unfortunately, this test doesn't fail under llvm-link, only during an LTO linking.) The '%C' and '%C.1' clash. The destination module gets the '%C' declaration. When merging Module B, it looks at the '%C.1' subtype of the '%B' structure. It adds that in, because that's cool. And when '%B.3' is processed, it uses the '%C.1'. But the '%B' has used '%C' and we prefer to use '%C'. So the '@func_x' type is changed to 'void (%C*, i64, i64)', but the type of '%x' in '@func_z' remains '%A.2'. The GEP resolves to a '%C.1', which conflicts with the '@func_x' signature. We can resolve this situation by making sure that the type is used in the destination before saying that it should be used in the module being merged in. With this fix, LLVM and Clang both compile under LTO. <rdar://problem/10913281> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153351 91177308-0d34-0410-b5e6-96231b3b80d8
* Ignore the last message.Bill Wendling2012-03-231-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153315 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert patch. It broke the build.Bill Wendling2012-03-231-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153314 91177308-0d34-0410-b5e6-96231b3b80d8
* Dematerialize the source functions after we're done with them. This saves a bitBill Wendling2012-03-231-1/+3
| | | | | | | of memory during LTO. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153313 91177308-0d34-0410-b5e6-96231b3b80d8
* Some whitespace and comment cleanup.Bill Wendling2012-03-221-5/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153278 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unneeded #ifdefs.Bill Wendling2012-03-221-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153277 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a 'dump' method to the type map. Doxygenify some of the comments and add aBill Wendling2012-03-221-23/+36
| | | | | | | | | few comments where none existed before. Also change a function's name to match the current coding standard. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153276 91177308-0d34-0410-b5e6-96231b3b80d8
* Include cctype for isdigit. Patch by Stephen Hines.Duncan Sands2012-03-031-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151973 91177308-0d34-0410-b5e6-96231b3b80d8
* Oops...Don't commit the other stuff..Bill Wendling2012-02-281-44/+29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151618 91177308-0d34-0410-b5e6-96231b3b80d8
* Modify comment to reflect the importance of this code.Bill Wendling2012-02-281-29/+44
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151617 91177308-0d34-0410-b5e6-96231b3b80d8
* Add back removed code. It still causes LLVM to miscompile. But not having it ↵Bill Wendling2012-02-271-0/+30
| | | | | | breaks other things. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151594 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use #if 0. Just remove until I can address this.Bill Wendling2012-02-271-35/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151580 91177308-0d34-0410-b5e6-96231b3b80d8
* The code that cleans up multiple, isomorphic types has a subtle error thatBill Wendling2012-02-271-3/+7
| | | | | | | | manifests itself when building LLVM with LTO. <rdar://problem/10913281> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151576 91177308-0d34-0410-b5e6-96231b3b80d8
* Capitalize messages so that they appear nicely with the linker's error messages.Bill Wendling2012-02-141-9/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150466 91177308-0d34-0410-b5e6-96231b3b80d8
* [WIP] Initial code for module flags.Bill Wendling2012-02-111-5/+186
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Module flags are key-value pairs associated with the module. They include a 'behavior' value, indicating how module flags react when mergine two files. Normally, it's just the union of the two module flags. But if two module flags have the same key, then the resulting flags are dictated by the behaviors. Allowable behaviors are: Error Emits an error if two values disagree. Warning Emits a warning if two values disagree. Require Emits an error when the specified value is not present or doesn't have the specified value. It is an error for two (or more) llvm.module.flags with the same ID to have the Require behavior but different values. There may be multiple Require flags per ID. Override Uses the specified value if the two values disagree. It is an error for two (or more) llvm.module.flags with the same ID to have the Override behavior but different values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150300 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert assert(0) to llvm_unreachableCraig Topper2012-02-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149967 91177308-0d34-0410-b5e6-96231b3b80d8
* use Constant::getAggregateElement to simplify a bunch of code.Chris Lattner2012-01-251-15/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148934 91177308-0d34-0410-b5e6-96231b3b80d8
* add more support for ConstantDataSequentialChris Lattner2012-01-241-18/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148802 91177308-0d34-0410-b5e6-96231b3b80d8
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