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2009-07-29Skeleton for pairwise subscript testing.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Add DebugInfoEnumerator to collect debug info.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77360 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Simplify LDA-internal interface.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-2780 columns!Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77243 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27Fix wording in comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25Fix a few comments to say "backedge-taken count" instead ofDan Gohman
"trip count". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77081 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25Instead of eagerly creating new SCEVs to replace all SCEVs that areDan Gohman
affected after a PHI node has been analyzed, just remove affected SCEVs from the Scalars map, so that they'll be (lazily) recreated as needed. This avoids creating SCEV objects that aren't actually needed. Also, rewrite the associated def-use walking code to be non-recursive and to continue traversing past Instructions that don't have an entry in the Scalars map. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77032 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25Make AliasAnalysis and related classes useDan Gohman
getAnalysisIfAvailable<TargetData>(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77028 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24Forward-declare raw_ostream.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77014 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24Give SCEVAddRecExpr no-signed-overflow and no-unsigned-overflow flags.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76928 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24Give the SCEV class a SubclassData field.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76927 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24Fix whitespace.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76926 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23Cache dependence computation using FoldingSet.Andreas Bolka
This introduces an LDA-internal DependencePair class. The intention is, that this is a place where dependence testers can store various results such as SCEVs describing conflicting iterations, breaking conditions, distance/direction vectors, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76877 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23Minor cosmetics: indentation, formatting, naming.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76839 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Add replaceAllUsesWith() to FE replace debug info constructs while building ↵Devang Patel
complex types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76765 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Get rid of the Pass+Context magic.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21Replace the original ad-hoc code for determining whether (v pred w) impliesDan Gohman
(x pred y) with more thorough code that does more complete canonicalization before resorting to range checks. This helps it find more cases where the canonicalized expressions match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76671 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-17Commit this change, to accompany r76232.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76238 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a ↵Owen Anderson
number of issues in our current context-passing stuff, which is also fixed here git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76089 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16Add an isLoopSimplifyForm() predicate, following the example ofDan Gohman
isLCSSAForm(), to test whether a loop is in the form guaranteed by the LoopSimplify pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76077 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16Tidy up #includes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76072 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15Fix a typo in a comment that Duncan noticed.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75804 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-15Make makeLoopInvariant report whether it made any changes or not,Dan Gohman
and use this to simplify more code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75722 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14Introduce a pointertracking pass.Torok Edwin
For now this only computes the allocated size of the memory pointed to by a pointer, and offset a pointer from allocated pointer. The actual checkLimits part will come later, after another round of review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75657 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.Torok Edwin
This adds location info for all llvm_unreachable calls (which is a macro now) in !NDEBUG builds. In NDEBUG builds location info and the message is off (it only prints "UREACHABLE executed"). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14ProfileInfo interface tweaks.Daniel Dunbar
- Add getExecutionCount(const Function). - Add helper Edge type. - constify. - No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75623 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14Introduce a new LoopInfo utility function makeLoopInvariant, whichDan Gohman
works similar to isLoopInvariant, except that it will do trivial hoisting to try to make the value loop invariant if it isn't already. This makes it easier for transformation passes to clear trivial instructions out of the way (the regular LICM pass doesn't run until relatively late). This is code factored out of LoopSimplify and other places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75578 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13Forward-declare Loop and LoopInfo instead of #including LoopInfo.h.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75529 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13Move isLCSSAForm, isLoopInvariant, getCanonicalInductionVariable,Dan Gohman
and related functions out of LoopBase and into Loop, since they are specific to BasicBlock-based loops. This also allows the code to be moved out-of-line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75523 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13Make Loop and MachineLoop be subclasses of LoopBase, rather than typedefs,Dan Gohman
using the Curiously Recurring Template Pattern with LoopBase. This will help further refactoring, and future functionality for Loop. Also, Headers can now foward-declare Loop, instead of pulling in LoopInfo.h or doing tricks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75519 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13Reapply 75252, with a fix to avoid the infinite recursion case. TheDan Gohman
check for avoiding re-analyzing a widening cast needed to happen earlier, as getSCEV itself may result in a isLoopGuardedByCond query. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75511 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-13Convert SCEV from FoldingSetNode to FastFoldingSetNode. This eliminatesDan Gohman
a bunch of redundent code in Profile methods, and prepares for upcoming changes to do improved memoization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-12Match declaration to definition.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-12Match declaration to definition.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75438 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11Revert r75252 which was causing some crashes at compile time.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75384 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11assert(0) -> LLVM_UNREACHABLE.Torok Edwin
Make llvm_unreachable take an optional string, thus moving the cerr<< out of line. LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for NDEBUG builds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-10Remove ScalarEvolution::hasSCEV, which isn't being used, and whichDan Gohman
breaks encapsulation. Also remove a dead prototype for setSCEV. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75272 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-10Generalize ScalarEvolution's cast-folding code to support more kindsDan Gohman
of loops. Add several new functions to for working with ScalarEvolution's add-hoc value-range analysis functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-10Finish pushing LLVMContext through the IRBuilder/ConstantFolder interface.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-09Fix typo, trailing whitespace.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75179 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08Push LLVMContext _back_ through IRBuilder.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75040 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-08Make the code that updates ScalarEvolution's internal state in responseDan Gohman
to a loop deletion more thorough. Don't prune the def-use tree search at instructions that don't have SCEVs computed, because an instruction with a user that has a computed SCEV may itself lack a computed SCEV. Also, remove loop-related values from the ValuesAtScopes and ConstantEvolutionLoopExitValues maps as well. This fixes a regression in 483.xalancbmk. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75030 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-07Re-LLVMContext-ize DebugInfo, now with less breakage.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-07Change all SCEV* to SCEV *.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74918 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06"LLVMContext* " --> "LLVMContext *"Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74878 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's ↵Owen Anderson
through the ValueTracking API. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74873 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06Thread LLVMContext through the constant folding APIs, which touches a lot of ↵Owen Anderson
files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-02Simplify debug info intrisinc lowering.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-02Fix typo.Devang Patel
Thanks Duncan! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-02Add debug info utility routines.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74680 91177308-0d34-0410-b5e6-96231b3b80d8
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