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2009-09-10Factor out the code for checking that all indices in a getelementptr areDan Gohman
within the notional bounds of the static type of the getelementptr (which is not the same as "inbounds") from GlobalOpt into a utility routine, and use it in ConstantFold.cpp to check whether there are any mis-behaved indices. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81478 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-10Correctly handle the case where a comparison is created in one BasicBlock andNick Lewycky
used by a terminator in another. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-10Add malloc call utility functions. Patch by Victor Hernandez.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81426 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Fix SplitCriticalEdge to properly update LCSSA form when splitting aDan Gohman
loop exit edge -- new PHIs may be needed not only for the additional splits that are made to preserve LoopSimplify form, but also for the original split. Factor out the code that inserts new PHIs so that it can be used for both. Remove LoopRotation.cpp's code for manually updating LCSSA form, as it is now redundant. This fixes PR4934. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81363 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Reflow comment.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81361 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Preserve ProfileInfo.Andreas Neustifter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81360 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Fix an 80-column violation.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81354 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09revert r81335, which breaks the build.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Updated ProfileInfo to have clean seperation between different sentinels.Andreas Neustifter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81335 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Fix PR4909, patch by Jakub Staszak.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81250 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08remove an extremely dubious instcombine transformation ofChris Lattner
extractelement(load). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81239 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Re-apply r80926, with fixes: keep the domtree informed of new blocksDan Gohman
that get created during loop unswitching, and fix SplitBlockPredecessors' LCSSA updating code to create new PHIs instead of trying to just move existing ones. Also, optimize Loop::verifyLoop, since it gets called a lot. Use searches on a sorted list of blocks instead of calling the "contains" function, as is done in other places in the Loop class, since "contains" does a linear search. Also, don't call verifyLoop from LoopSimplify or LCSSA, as the PassManager is already calling verifyLoop as part of LoopInfo's verifyAnalysis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81221 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08remove a turdChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81186 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08instcombine transforms vector loads that are only used byChris Lattner
extractelement operations into a bitcast of the pointer, then a gep, then a scalar load. Disable this when the vector only has one element, because it leads to infinite loops in instcombine (PR4908). This transformation seems like a really bad idea to me, as it will likely disable CSE of vector load/stores etc and can be better done in the code generator when profitable. This goes all the way back to the first days of packed types, r25299 specifically. I'll let those people who care about the performance of vector code decide what to do with this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81185 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Fix PR4882, by making MemCpyOpt not dereference removed stores to get theChris Lattner
context for the newly created operations. Patch by Jakub Staszak! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81175 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Reappy r80998, now that the GlobalOpt bug that it exposed on MiniSAT is fixed.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81172 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Don't commit stores with addresses that have indices that are notDan Gohman
compile-time constant integers or that are out of bounds for their corresponding static array types. These can cause aliasing that GlobalOpt assumes won't happen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81165 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Don't commit addresses of aggregate values. This avoids problems withDan Gohman
an aggregate store overlapping a different aggregate store, despite the stores having distinct addresses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81164 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Fix GlobalOpt to avoid committing a store if the address getelementptrDan Gohman
is missing the inbounds flag. This is slightly conservative, but it avoids problems with two constants pointing to the same address but getting distinct entries in the Memory DenseMap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81163 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Preserve the InBounds flag when evaluating a getelementptr instructionDan Gohman
into a getelementptr ConstantExpr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81162 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-07Simplify this code by using hasDefinitiveInitializer().Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81161 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Fix comment.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81138 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Remove some not-really-used variables, as warnedDuncan Sands
about by icc (#593, partial). Patch by Erick Tryzelaar. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81115 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Fix a possible crash call setIsInBounds.Daniel Dunbar
- I think there are more instances of this, but I think they are fixed in Dan's incoming patch. This one was preventing me from doing a bugpoint reduction though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81103 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Revert r80926. It causes loop unswitch assertion and slow down some JIT ↵Evan Cheng
tests significantly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81101 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-06Revert "Include optional subclass flags, such as inbounds, nsw, etc., ...", thisDaniel Dunbar
breaks MiniSAT on x86_64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Converted MaximumSpanningTree algorithm to a generic template, this could goAndreas Neustifter
into llvm/ADT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81001 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Include optional subclass flags, such as inbounds, nsw, etc., in theDan Gohman
Constant uniquing tables. This allows distinct ConstantExpr objects with the same operation and different flags. Even though a ConstantExpr "a + b" is either always overflowing or never overflowing (due to being a ConstantExpr), it's still necessary to be able to represent it both with and without overflow flags at the same time within the IR, because the safety of the flag may depend on the context of the use. If the constant really does overflow, it wouldn't ever be safe to use with the flag set, however the use may be in code that is never actually executed. This also makes it possible to merge all the flags tests into a single test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80998 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Add a verifyAnalysis to LoopInfo, LoopSimplify, and LCSSA form that verifyDan Gohman
that these passes are properly preserved. Fix several transformation passes that claimed to preserve LoopSimplify form but weren't. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80926 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Change PHINode::hasConstantValue to have a DominatorTree argumentDan Gohman
instead of a bool argument, and to do the dominator check itself. This makes it eaiser to use when DominatorTree information is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Keep track of how many memmove calls were turned intoDuncan Sands
memcpy calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80915 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Code Cleanup.Andreas Neustifter
Removed inverted flag form MaximumSpanningTree, also do not handle so much information to MaximumSpanningTree. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80911 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Remove VISIBILITY_HIDDEN from this file.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80903 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03In C++, code is not allowed to call main. In C it is, thisChris Lattner
simplifylibcalls optimization is thus valid for C++ but not C. It's not important enough to worry about for C++ apps, so just remove it. rdar://7191924 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80887 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03back out my recent commit (r80858), it seems to break self-hosting ↵Gabor Greif
buildbot's stage 2 configure git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80871 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03re-commit r66920 (which has been backed out in r66953) I may have more luck ↵Gabor Greif
this time. I'll back out if needed... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80858 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02Sort edges in MaximumSpanningTree more stable in case of equal weight.Andreas Neustifter
(See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090824/085890.html) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02Changed set of BlocksToInstrument to set of InsertedBlocks that do not have toAndreas Neustifter
be instrumented. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80788 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02Code cleanups and added comments.Andreas Neustifter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80781 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02fix PR4815: some cases where DeleteDeadInstruction can deleteChris Lattner
the instruction BBI points to. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80768 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02clean up this code a bit.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80767 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80766 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-02fix PR4837, some bugs folding vector compares. TheseChris Lattner
return a vector of i1, not i1 itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80761 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01OptimalEdgeProfiling: Creation of profiles.Andreas Neustifter
This adds the instrumentation and runtime part of OptimalEdgeProfiling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80712 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01remove CallGraphNode::replaceCallSite, it is redundant with other APIs.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80708 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01cleanup/simplifyChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01remove a bunch of explicit code previously needed to update theChris Lattner
callgraph. This is now dead because RAUW does the job. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80703 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01enhance memcpy opt to turn memmoves into memcpy when the src/destChris Lattner
don't alias. Remove an old and poorly reduced testcase that fails with this transform for reasons unrelated to the original test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80693 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01random code cleanups, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01Update CMake files.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80680 91177308-0d34-0410-b5e6-96231b3b80d8
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