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2009-08-31Fix PR4834, a tricky case where the inliner would resolve anChris Lattner
indirect function pointer, inline it, then go to delete the body. The problem is that the callgraph had other references to the function, though the inliner had no way to know it, so we got a dangling pointer and an invalid iterator out of the deal. The fix to this is pretty simple: stop the inliner from deleting the function by knowing that there are references to it. Do this by making CallGraphNodes contain a refcount. This requires moving deletion of available_externally functions to the module-level cleanup sweep where it belongs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Fix some nasty callgraph dangling pointer problems in Chris Lattner
argpromotion and structretpromote. Basically, when replacing a function, they used the 'changeFunction' api which changes the entry in the function map (and steals/reuses the callgraph node). This has some interesting effects: first, the problem is that it doesn't update the "callee" edges in any callees of the function in the call graph. Second, this covers for a major problem in all the CGSCC pass stuff, which is that it is completely broken when functions are deleted if they *don't* reuse a CGN. (there is a cute little fixme about this though :). This patch changes the protocol that CGSCC passes must obey: now the CGSCC pass manager copies the SCC and preincrements its iterator to avoid passes invalidating it. This allows CGSCC passes to mutate the current SCC. However multiple passes may be run on that SCC, so if passes do this, they are now required to *update* the SCC to be current when they return. Other less interesting parts of this patch are that it makes passes update the CG more directly, eliminates changeFunction, and requires clients of replaceCallSite to specify the new callee CGN if they are changing it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80527 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30add a dump() method on callgraph.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80524 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28Reapply 79977.Devang Patel
Use MDNodes to encode debug info in llvm IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27Closure is a very generic name. Use AppleBlock instead.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80307 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27eliminate all 80-col violations that I have introduced in my recent checkins ↵Gabor Greif
(and some others more) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80304 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27Minor code simplification.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80266 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27Be somewhat more consistent about const qualifiers.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80264 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27Global Aliases are not identifiable objects.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80263 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27Handle TargetData with const.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80262 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27Strip trailing whitespace from blank lines.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80259 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27the buildbots revealed one more breakage. fix. (why didn't I see this?)Gabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80227 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27Clean up the minor mess I caused with removing iterator.h. I shall take care ↵Gabor Greif
of 80-col violations and the FIXME later. (Thanks goodness that I live in another continent, so the monkeypox did not strike me :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80224 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Move ProfileInfo::Edge's operator<< out of line. Among other benefits,Dan Gohman
this eliminates the ATTRIBUTE_USED, which wasn't being used in a manner acceptable to some GCC versions, according to the buildbots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80103 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Bugfix for r80100, forgot include. Sorry.Andreas Neustifter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80101 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Implemented comments from Daniel Dunbar.Andreas Neustifter
(See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090817/084958.html) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80100 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Create a ScalarEvolution-based AliasAnalysis implementation.Dan Gohman
This is a simple AliasAnalysis implementation which works by making ScalarEvolution queries. ScalarEvolution has a more complete understanding of arithmetic than BasicAA's collection of ad-hoc checks, so it handles some cases that BasicAA misses, for example p[i] and p[i+1] within the same iteration of a loop. This is currently experimental. It may be that the main use for this pass will be to help find cases where BasicAA can be profitably extended, or to help in the development of the overall AliasAnalysis infrastructure, however it's also possible that it could grow up to become a directly useful pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26fix some funky indentationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Add isClosure() predicate. This is used to add DW_AT_APPLE_block attribute.Devang Patel
Patch by Caroline Tice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80061 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25Update DebugInfo interface to use metadata, instead of special named ↵Devang Patel
llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well. This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79977 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24This patch cleans up the ProfileInfo byAndreas Neustifter
*) introducing new data type and export function of edge info for whole function (preparation for next patch). *) renaming variables to make clear distinction between data and containers that contain this data. *) updated comments and whitespaces. *) made ProfileInfo::MissingValue a double (as it should be...). (Discussed at http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090817/084955.html.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79940 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24remove a few dead insertion methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79882 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23convert LoopInfo.h and GraphWriter.h to use raw_ostreamChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23Change Pass::print to take a raw ostream instead of std::ostream,Chris Lattner
update all code that this affects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79830 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23eliminate the std::ostream form of WriteAsOperand and update clients.Chris Lattner
This also updates dominator related stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79825 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
2009-08-20Rename hasNoUnsignedOverflow and hasNoSignedOverflow to hasNoUnsignedWrapDan Gohman
and hasNoSignedWrap, for consistency with the nuw and nsw properties. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79539 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20Various comment and whitespace cleanups.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18Generalize ScalarEvolution to be able to analyze GEPs whenDan Gohman
TargetData is not present. It still uses TargetData when available. This generalization also fixed some limitations in the TargetData case; the attached testcase covers this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79344 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Make LLVMContext and LLVMContextImpl classes instead of structs.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78690 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Tidy #includes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78677 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10Keep track of DIType.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08Some ProfileInfo cleanups.Daniel Dunbar
- Part of optimal static profiling patch sequence by Andreas Neustifter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78485 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08Add a basic static ProfileInfo provider (ProfileEstimatorPass).Daniel Dunbar
- Part of optimal static profiling patch sequence by Andreas Neustifter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78484 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08More ProfileInfo improvements.Daniel Dunbar
- Part of optimal static profiling patch sequence by Andreas Neustifter. - Store edge, block, and function information separately for each functions (instead of in one giant map). - Return frequencies as double instead of int, and use a sentinel value for missing information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07SIV/MIV classification for LDA.Andreas Bolka
LoopDependenceAnalysis::getLoops is currently O(N*M) for a loop-nest of depth N and a compound SCEV of M atomic SCEVs. As both N and M will typically be very small, this should not be a problem. If it turns out to be one, rewriting getLoops as SCEVVisitor will reduce complexity to O(M). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78394 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06Remove dead code.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78335 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-06Fix comment.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78313 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05Make block and function count available via ProfileInfo.Daniel Dunbar
- Part of optimal static profiling patch sequence by Andreas Neustifter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78247 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05Remove unnecessary ProfileInfoLoader methods.Daniel Dunbar
- Part of optimal static profiling patch sequence by Andreas Neustifter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05ZIV tester for LDA.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78157 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-04Factor some of the constants+context related code out into a separate ↵Owen Anderson
header, to make LLVMContextImpl.h not hideous. Also, fix some MSVC compile errors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78115 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03Restrict LDA to affine subscripts.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77932 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Fix a typo in a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Fix some problems with ASTCallbackVH in its use as a DenseMap key.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77696 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Process DbgDeclareInst.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77694 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Use CallbackVH in AliasSetTracker to avoid getting stuck withDan Gohman
dangling Value*s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30s/DebugInfoEnumerator/DebugInfoFinder/gDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77615 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30walk DbgRegionStartInst and DbgRegionEndInstDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77604 91177308-0d34-0410-b5e6-96231b3b80d8
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