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* 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
* reimplement AliasSetTracker in terms of DenseMap instead of hash_map,Chris Lattner2009-03-091-32/+34
| | | | | | | hopefully no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66398 91177308-0d34-0410-b5e6-96231b3b80d8
* add a #include to improve portability to windows, as requested byChris Lattner2009-03-091-0/+1
| | | | | | | someone on llvmdev. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66397 91177308-0d34-0410-b5e6-96231b3b80d8
* Pass in a std::string when getting the names of debugging things. This cuts downBill Wendling2009-03-091-11/+31
| | | | | | | on the number of times a std::string is created and copied. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66396 91177308-0d34-0410-b5e6-96231b3b80d8
* change the MemIntrinsic get/setAlignment method to take an unsignedChris Lattner2009-03-081-6/+9
| | | | | | | instead of a Constant*, which is what the clients of it really want. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66364 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce a new MemTransferInst pseudo class, which is a commonChris Lattner2009-03-081-38/+36
| | | | | | | | parent between MemCpyInst and MemMoveInst, simplify some code to use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66361 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix misaligned whitespace. No functionality change.Nick Lewycky2009-03-081-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66355 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some duplication.Mikhail Glushenkov2009-03-071-5/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66347 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
* simplify the way how traits get hold of the symbol tableGabor Greif2009-03-073-23/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66336 91177308-0d34-0410-b5e6-96231b3b80d8
* further simplifications arising from peruse of the more declarative interfaceGabor Greif2009-03-074-7/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66333 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the burden of dealing with list offsetsGabor Greif2009-03-074-67/+25
| | | | | | | | | from SymbolTableListTraits' clients, and intead request a nice declarative interface. Cleans up an IMHO ugly wart. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66331 91177308-0d34-0410-b5e6-96231b3b80d8
* Add IRBuilder::CreateConstGEP{1, 2}_{32, 64}.Daniel Dunbar2009-03-061-4/+36
| | | | | | | - Names are lame, but it seems better to be explicit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66295 91177308-0d34-0410-b5e6-96231b3b80d8
* Add Module::getNamedValue; use to normalize access to Module symbolDaniel Dunbar2009-03-061-0/+10
| | | | | | | | table. - No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66289 91177308-0d34-0410-b5e6-96231b3b80d8
* Add default constructor to SDNode to make gcc 3.4.6 happy.Tanya Lattner2009-03-061-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66280 91177308-0d34-0410-b5e6-96231b3b80d8
* some nits noticed by DuncanChris Lattner2009-03-061-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66274 91177308-0d34-0410-b5e6-96231b3b80d8
* Sprinkle some PrettyStackEntry magic into the passmanager. With this, we nowChris Lattner2009-03-061-0/+23
| | | | | | | | | | | | | | | | | | get nice and happy stack traces when we crash in an optimizer or codegen. For example, an abort put in UnswitchLoops now looks like this: Stack dump: 0. Program arguments: clang pr3399.c -S -O3 1. <eof> parser at end of file 2. per-module optimization passes 3. Running pass 'CallGraph Pass Manager' on module 'pr3399.c'. 4. Running pass 'Loop Pass Manager' on function '@foo' 5. Running pass 'Unswitch loops' on basic block '%for.inc' Abort git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66260 91177308-0d34-0410-b5e6-96231b3b80d8
* do not close friendship with every odd classGabor Greif2009-03-062-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66229 91177308-0d34-0410-b5e6-96231b3b80d8
* Add "check/remove dbg var" helper routines.Devang Patel2009-03-061-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66223 91177308-0d34-0410-b5e6-96231b3b80d8
* Regenerate.Nick Lewycky2009-03-051-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66157 91177308-0d34-0410-b5e6-96231b3b80d8
* ooops, forgot to include the pointless-write eliminator in my previous checkinGabor Greif2009-03-046-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66081 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some cautionary comments.Dale Johannesen2009-03-041-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66080 91177308-0d34-0410-b5e6-96231b3b80d8
* add some helper classes for building light-weight symbolic stack tracesChris Lattner2009-03-041-0/+65
| | | | | | | that get printed when a program crashes. This is the first step of many. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66076 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-commit 65975 and a fix for the problem thatDale Johannesen2009-03-041-0/+2
| | | | | | | | | was causing llvm-gcc to fail to build. I've verified it bootstraps now; good enough for me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66073 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new 'AddSignalHandler' function to Signals.h that allowsChris Lattner2009-03-041-6/+5
| | | | | | | | | | | | | | arbitrary functions to be run when a crash happens. Delete RemoveDirectoryOnSignal as it is dead and has never had clients. Change PrintStackTraceOnErrorSignal to be implemented in terms of AddSignalHandler. I updated the Win32 versions of these APIs, but can't test them. If there are any problems, I'd be happy to fix them as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66072 91177308-0d34-0410-b5e6-96231b3b80d8
* Give sentinel traits the right to determine the policy where the sentinel is ↵Gabor Greif2009-03-047-11/+71
| | | | | | | | kept. This should result in less indirect memory accesses, less dead writes and tighter code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66061 91177308-0d34-0410-b5e6-96231b3b80d8
* "Ghostify" embedded sentinels. This is a real win in all casesGabor Greif2009-03-043-9/+10
| | | | | | | | | because less bytes are allocated and subobject construction is gone. For reference how it works, see BasicBlock.h. Btw. it is very assuring to see that somebody has invented this ilist-embedded sentinel technique before me :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66026 91177308-0d34-0410-b5e6-96231b3b80d8
* Temporarily revert 65975, which breaks the llvm-gcc build.Dale Johannesen2009-03-041-2/+0
| | | | | | | | | | While the patch is clearly correct in itself, it's become apparent other places are assuming debug intrinsics are marked as touching memory...this needs more testing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65992 91177308-0d34-0410-b5e6-96231b3b80d8
* Dbg Intrinsics do not access memory.Devang Patel2009-03-031-8/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65975 91177308-0d34-0410-b5e6-96231b3b80d8
* Make a comment less terse.Dan Gohman2009-03-031-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65953 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bunch of Doxygen syntax issues. Escape special characters,Dan Gohman2009-03-038-11/+15
| | | | | | | and put @file directives on their own comment line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65920 91177308-0d34-0410-b5e6-96231b3b80d8
* When sinking an insn in InstCombine bring its debugDale Johannesen2009-03-031-0/+5
| | | | | | | | | | info with it. Don't count debug info insns against the scan maximum in FindAvailableLoadedValue (lest they affect codegen). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65910 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize BuildVectorSDNode::isConstantSplat to use APInts and handleBob Wilson2009-03-021-7/+12
| | | | | | | | | arbitrary vector sizes. Add an optional MinSplatBits parameter to specify a minimum for the splat element size. Update the PPC target to use the revised interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65899 91177308-0d34-0410-b5e6-96231b3b80d8
* drop support for GCC 2.x as it is hopelessly broken anywayGabor Greif2009-03-021-15/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65864 91177308-0d34-0410-b5e6-96231b3b80d8
* Declare Sentinel fragments as mutable to get ridGabor Greif2009-03-022-6/+6
| | | | | | | | | of some pointless casting. This fragment logically does not belong to ilist anyway, but to "ghostly" NodeType. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65843 91177308-0d34-0410-b5e6-96231b3b80d8
* remove a deprecated interface that was pretty uselessGabor Greif2009-03-021-7/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65842 91177308-0d34-0410-b5e6-96231b3b80d8
* fix typoGabor Greif2009-03-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65839 91177308-0d34-0410-b5e6-96231b3b80d8
* Move code from Main.cpp to the include dir.Mikhail Glushenkov2009-03-021-0/+133
| | | | | | | | User drivers based on llvmc must all share the initialization code. Putting main() into libCompilerDriver is not a very good idea IMO (and ld gave me some strange EH-related error anyway). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65825 91177308-0d34-0410-b5e6-96231b3b80d8
* Cosmetic fixes: include guards.Mikhail Glushenkov2009-03-025-16/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65824 91177308-0d34-0410-b5e6-96231b3b80d8
* Plugin::Priority() doesn't need to be pure virtual.Mikhail Glushenkov2009-03-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65823 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a comment.Mikhail Glushenkov2009-03-021-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65822 91177308-0d34-0410-b5e6-96231b3b80d8
* Reorganize llvmc code.Mikhail Glushenkov2009-03-021-0/+33
| | | | | | | | | | Move the code from 'llvmc/driver' into a new CompilerDriver library, and change the build system accordingly. Makes it easier for projects using LLVM to build their own llvmc-based drivers. Tested with objdir != srcdir. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65821 91177308-0d34-0410-b5e6-96231b3b80d8
* Another sentinel optimization. This one should alwaysGabor Greif2009-03-011-3/+6
| | | | | | be a win, since almost every interesting function has at least one Argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65778 91177308-0d34-0410-b5e6-96231b3b80d8
* Reuse a technique (pioneered for BasicBlocks) of superposing ilist withGabor Greif2009-03-011-3/+8
| | | | | | | | | | | | | its sentinel. This is quite a win when a function really has a basic block. When the function is just a declaration (and stays so) the old way did not allocate a sentinel. So this change is most beneficial when the ratio of function definition to declaration is high. I.e. linkers etc. Incidentally these are the most resource demanding applications, so I expect that the reduced malloc traffic, locality and space savings outweigh the cost of addition of two pointers to Function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65776 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a commentGabor Greif2009-03-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65768 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo. Thanks baldrick!Gabor Greif2009-03-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65767 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify handling "don't print top level name" processing, so that we getChris Lattner2009-03-011-3/+6
| | | | | | | stuff like %A = type { %A*} instead of an upref. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65748 91177308-0d34-0410-b5e6-96231b3b80d8
* Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a newBob Wilson2009-03-011-0/+18
| | | | | | | method in a BuildVectorSDNode "pseudo-class". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65747 91177308-0d34-0410-b5e6-96231b3b80d8
* move type name population out of TypePrinting class into a static Chris Lattner2009-02-281-2/+11
| | | | | | | AsmWriter.cpp method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65736 91177308-0d34-0410-b5e6-96231b3b80d8
* delete a bunch of duplicated type printing logic, using the type printingChris Lattner2009-02-281-2/+2
| | | | | | | stuff in AsmWriter.cpp for Type::getDescription(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65734 91177308-0d34-0410-b5e6-96231b3b80d8
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