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2010-09-07Tidy up the getModRefInfo declarations.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113275 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-06pull a simple method out of LICM into a new Chris Lattner
Loop::hasLoopInvariantOperands method. Remove a useless and confusing Loop::isLoopInvariant(Instruction) method, which didn't do what you thought it did. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113133 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-01Revert 112442 and 112440 until the compile time problems introducedDan Gohman
by 112440 are resolved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112692 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Update the descriptions of NoModRef and ModRef to be consistentDan Gohman
with the descriptions of Mod and Ref. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112557 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29two changes: 1) make AliasSet hold the list of call sites with anChris Lattner
assertingvh so we get a violent explosion if the pointer dangles. 2) Fix AliasSetTracker::deleteValue to remove call sites with by-pointer comparisons instead of by-alias queries. Using findAliasSetForCallSite can cause alias sets to get merged when they shouldn't, and can also miss alias sets when the call is readonly. #2 fixes PR6889, which only repros with a .c file :( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29Make IVUsers iterative instead of recursive.Dan Gohman
This has the side effect of reversing the order of most of IVUser's results. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112442 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-27Switch ScalarEvolution's main Value*->SCEV* map from std::mapDan Gohman
to DenseMap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112281 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Fix header define to reflect the name of the file.Eric Christopher
Patch by Adam Treat! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112077 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Handle qualified constants that are directly folded by FE.Devang Patel
PR 7920. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111820 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20CreateTemporaryType doesn't needs its Context argument.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20Introduce a new temporary MDNode concept. Temporary MDNodes areDan Gohman
not part of the IR, are not uniqued, and may be safely RAUW'd. This replaces a variety of alternate mechanisms for achieving the same effect. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111681 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18move gep decomposition out of ValueTracking into BasicAA. The form ofChris Lattner
decomposition that it is doing is very basicaa specific and is only used by basicaa. Now with less tree breakingness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111433 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. TheDaniel Dunbar
form of", it doesn't pass tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111385 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Inform LazyValueInfo whenever a block is deleted, to avoid dangling pointer ↵Owen Anderson
issues. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111382 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18move gep decomposition out of ValueTracking into BasicAA. The form ofChris Lattner
decomposition that it is doing is very basicaa specific and is only used by basicaa. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111375 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Revert r111031. The way LLVM defines loop invariance, the property of anDan Gohman
expression being loop invariant is not equivalent to the property of properly dominating the loop header. Other optimizations have also made this optimization less important. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111160 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Placate overzealous compiler warnings.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111152 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Move SCEVNAryExpr's virtual member functions out of line, and convertDan Gohman
them to iterators. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111140 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Specialize FoldingSetTrait<SCEV>, providing implementations of nodeDan Gohman
comparison and hash computation which don't require constructing temporary ID values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111131 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Implement hasComputableLoopEvolution for Add, Mul, and Trunc operators,Dan Gohman
since they can support trivial implementations. This avoids potentially expensive traversals of the operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111031 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Make LoopPass::getContainedPass return a LoopPass* instead of a Pass*Dan Gohman
and remove casts from all its callers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110848 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-10Rename and reorder the arguments to isImpliedCond, for consistency and clarity.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110750 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-10Add missing argument. CreateCompositeTypeEx() users, please verify.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110717 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-09Refactor.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110607 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Remove assignPassManager's default arguments. It's reallyDan Gohman
confusing to have different arguments for the same virtual function at different levels of the class hierarchy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110500 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07Tidy up PMStack. Add a bunch of consts, use std::vector instead ofDan Gohman
std::deque, since this is a stack and only supports push/pop on one end, and remove an unimplemented declaration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110495 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06Reapply r110396, with fixes to appease the Linux buildbot gods.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06Implement a proper getModRefInfo for va_arg.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110458 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06Add a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110426 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06Revert r110396 to fix buildbots.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05Make AA private, since subclasses shouldn't (aren't don't) access it directly.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110398 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05Don't use PassInfo* as a type identifier for passes. Instead, use the ↵Owen Anderson
address of the static ID member as the sole unique type identifier. Clean up APIs related to this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04Delete obsolete comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110277 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04Add a missing function.Torok Edwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Remove PointerAccessInfo, which nothing was using.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110167 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Thread const correctness through a bunch of AliasAnalysis interfaces andDan Gohman
eliminate several const_casts. Make CallSite implicitly convertible to ImmutableCallSite. Rename the getModRefBehavior for intrinsic IDs to getIntrinsicModRefBehavior to avoid overload ambiguity with CallSite, which happens to be implicitly convertible to bool. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Update some comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Introduce a symbolic constant for ~0u for use with AliasAnalysis.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110091 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Add a convenient form of AliasAnalysis::alias for the case where the sizesDan Gohman
are unknown. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110090 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Make SCEVUnknown a CallbackVH, so that it can be notified directlyDan Gohman
of Value deletions and RAUWs, instead of relying on ScalarEvolution's Scalars map being notified, as that's complicated at best, and insufficient in general. This means SCEVUnknown needs a non-trivial destructor, so introduce a mechanism to allow ScalarEvolution to locate all the SCEVUnknowns. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Sketch up a preliminary Type-Based Alias Analysis implementation.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110077 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Add explicit constructors. Patch by Renato Golin.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110072 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30LibCallAliasAnalysis uses multiple inheritance, so it needs to implementNick Lewycky
getAdjustedAnalysisPointer. Part of a fix to PR7760. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109883 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29Speculatively revert r109705 since it seems to be causing some build botEric Christopher
angst. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109718 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29Factor out some of the code for updating old SCEVUnknown values, andDan Gohman
extend it to handle the case where multiple RAUWs affect a single SCEVUnknown. Add a ScalarEvolution unittest to test for this situation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109705 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28Add some extra friend declarations to fix a gcc-4.0 compile error.Dan Gohman
This is a temporary fix, until more elaborate changes are ready. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109593 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28Add a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109565 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27RegionInfo: Add getMaxRegionExit()Tobias Grosser
getMaxRegionExit returns the exit of the maximal refined region starting at a specific basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Add function to query RegionInfo about loops.Tobias Grosser
* contains(Loop), * getOutermostLoop() * Improve getNameStr() to return a sensible name, if basic blocks are not named. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Use AssertingVH for InsertedValues and InsertedPostIncValues, to verifyDan Gohman
that the values they refer to aren't being deleted underneath them. Make sure these containters get cleared by clear(), which IndVarSimplify and LSR both use before deleting instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109478 91177308-0d34-0410-b5e6-96231b3b80d8