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* Remove dead debug info intrinsics.Devang Patel2010-01-054-80/+1
| | | | | | | | | | | | Intrinsic::dbg_stoppoint Intrinsic::dbg_region_start Intrinsic::dbg_region_end Intrinsic::dbg_func_start AutoUpgrade simply ignores these intrinsics now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92557 91177308-0d34-0410-b5e6-96231b3b80d8
* fix Analysis/DebugInfo.h to not include Metadata.h. Do thisChris Lattner2009-12-311-0/+1
| | | | | | | | by moving one method out of line and eliminating redundant checks from other methods. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92337 91177308-0d34-0410-b5e6-96231b3b80d8
* rename "elements" of metadata to "operands". "Elements" areChris Lattner2009-12-311-3/+3
| | | | | | | | things that occur in types. "operands" are things that occur in values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92322 91177308-0d34-0410-b5e6-96231b3b80d8
* Use an array instead of a SmallVector.Benjamin Kramer2009-12-291-7/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92264 91177308-0d34-0410-b5e6-96231b3b80d8
* prune #includes.Chris Lattner2009-12-291-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92260 91177308-0d34-0410-b5e6-96231b3b80d8
* Final step in the metadata API restructuring: move the Chris Lattner2009-12-291-2/+1
| | | | | | | | | | getMDKindID/getMDKindNames methods to LLVMContext (and add convenience methods to Module), eliminating MetadataContext. Move the state that it maintains out to LLVMContext. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92259 91177308-0d34-0410-b5e6-96231b3b80d8
* remove useless argument.Chris Lattner2009-12-291-8/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92256 91177308-0d34-0410-b5e6-96231b3b80d8
* This is a major cleanup of the instruction metadata interfaces thatChris Lattner2009-12-281-7/+13
| | | | | | | | | | | | | | | | | | | | | | | I asked Devang to do back on Sep 27. Instead of going through the MetadataContext class with methods like getMD() and getMDs(), just ask the instruction directly for its metadata with getMetadata() and getAllMetadata(). This includes a variety of other fixes and improvements: previously all Value*'s were bloated because the HasMetadata bit was thrown into value, adding a 9th bit to a byte. Now this is properly sunk down to the Instruction class (the only place where it makes sense) and it will be folded away somewhere soon. This also fixes some confusion in getMDs and its clients about whether the returned list is indexed by the MDID or densely packed. This is now returned sorted and densely packed and the comments make this clear. This introduces a number of fixme's which I'll follow up on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92235 91177308-0d34-0410-b5e6-96231b3b80d8
* rename getMDKind -> getMDKindID, make it autoinsert if an MD KindChris Lattner2009-12-281-1/+1
| | | | | | | | doesn't exist already, eliminate registerMDKind. Tidy up a bunch of random stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92225 91177308-0d34-0410-b5e6-96231b3b80d8
* improve indentation avoid a pointless conversion from weakvh to trackingvh,Chris Lattner2009-12-211-3/+3
| | | | | | | no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91848 91177308-0d34-0410-b5e6-96231b3b80d8
* revert r89298, which was committed without a testcase. I thinkChris Lattner2009-12-211-6/+0
| | | | | | | the underlying PHI node insertion issue in SSAUpdate is fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91821 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR5837 by having SSAUpdate reuse phi nodes for theChris Lattner2009-12-211-1/+23
| | | | | | | | | | | 'GetValueInMiddleOfBlock' case, instead of inserting duplicates. A similar fix is almost certainly needed by the machine-level SSAUpdate implementation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91820 91177308-0d34-0410-b5e6-96231b3b80d8
* Add Loop contains utility methods for testing whether a loopDan Gohman2009-12-182-6/+6
| | | | | | | | | contains another loop, or an instruction. The loop form is substantially more efficient on large loops than the typical code it replaces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91654 91177308-0d34-0410-b5e6-96231b3b80d8
* Update a comment.Dan Gohman2009-12-181-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91645 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove isPod() from DenseMapInfo, splitting it out to its ownChris Lattner2009-12-151-1/+0
| | | | | | | | | | isPodLike type trait. This is a generally useful type trait for more than just DenseMap, and we really care about whether something acts like a pod, not whether it really is a pod. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91421 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't leave pointers uninitialized in the default constructor. GCC complainsChandler Carruth2009-12-131-1/+1
| | | | | | | about the potential use of these uninitialized members under certain conditions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91239 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unnecessary #include "llvm/LLVMContext.h".Nick Lewycky2009-12-081-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90836 91177308-0d34-0410-b5e6-96231b3b80d8
* add an assert to make it really clear what this is doing. Return singularval asChris Lattner2009-12-041-1/+5
| | | | | | | a compile time perf optimization to avoid a load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90507 91177308-0d34-0410-b5e6-96231b3b80d8
* improve portability to avoid conflicting with std::next in c++'0x.Chris Lattner2009-12-031-1/+1
| | | | | | | Patch by Howard Hinnant! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90365 91177308-0d34-0410-b5e6-96231b3b80d8
* Move EliminateDuplicatePHINodes() from SimplifyCFG.cpp to Local.cppJim Grosbach2009-12-022-63/+62
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90324 91177308-0d34-0410-b5e6-96231b3b80d8
* Pull LLVMContext out of PromoteMemToReg.Nick Lewycky2009-11-232-9/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89645 91177308-0d34-0410-b5e6-96231b3b80d8
* Make Loop::getLoopLatch() work on loops which don't have preheaders, asDan Gohman2009-11-201-1/+6
| | | | | | | | | | | | | it may be used in contexts where preheader insertion may have failed due to an indirectbr. Make LoopSimplify's LoopSimplify::SeparateNestedLoop properly fail in the case that it would require splitting an indirectbr edge. These fix PR5502. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89484 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate duplicate phi nodes in loops. Loop rotation, for example, can ↵Jim Grosbach2009-11-191-0/+6
| | | | | | introduce these, and it's beneficial to later passes to clean them up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89298 91177308-0d34-0410-b5e6-96231b3b80d8
* Make EliminateDuplicatePHINodes() available as a utility functionJim Grosbach2009-11-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89297 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the braces gcc suggested.Daniel Dunbar2009-11-121-5/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86933 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't trivially delete unused calls to llvm.invariant.start. This allowsDuncan Sands2009-11-111-0/+3
| | | | | | | | | | | | | | llvm.invariant.start to be used without necessarily being paired with a call to llvm.invariant.end. If you run the entire optimization pipeline then such calls are in fact deleted (adce does it), but that's actually a good thing since we probably do want them to be zapped late in the game. There should really be an integration test that checks that the llvm.invariant.start call lasts long enough that all passes that do interesting things with it get to do their stuff before it is deleted. But since no passes do anything interesting with it yet this will have to wait for later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86840 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement support to debug inlined functions.Devang Patel2009-11-102-4/+57
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86748 91177308-0d34-0410-b5e6-96231b3b80d8
* move some generally useful functions out of jump threadingChris Lattner2009-11-101-2/+47
| | | | | | | into libanalysis and transformutils. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86735 91177308-0d34-0410-b5e6-96231b3b80d8
* refactor TryToSimplifyUncondBranchFromEmptyBlock out of SimplifyCFG.Chris Lattner2009-11-102-164/+173
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86666 91177308-0d34-0410-b5e6-96231b3b80d8
* fix ConstantFoldCompareInstOperands to take the LHS/RHS asChris Lattner2009-11-091-2/+2
| | | | | | | individual operands instead of taking a temporary array git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86619 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a comment in a typo that Duncan noticed.Dan Gohman2009-11-091-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86575 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize LCSSA to handle loops with exits with predecessors outsideDan Gohman2009-11-091-2/+14
| | | | | | | | | | | | | the loop. This is needed because with indirectbr it may not be possible for LoopSimplify to guarantee that all loop exit predecessors are inside the loop. This fixes PR5437. LCCSA no longer actually requires LoopSimplify form, but for now it must still have the dependency because the PassManager doesn't know how to schedule LoopSimplify otherwise. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86569 91177308-0d34-0410-b5e6-96231b3b80d8
* remove a bunch of extraneous LLVMContext argumentsChris Lattner2009-11-063-8/+4
| | | | | | | from various APIs, addressing PR5325. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86231 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid calling getUniqueExitBlocks from within LoopSimplify, as it dependsDan Gohman2009-11-051-1/+8
| | | | | | | | on loops having dedicated exits, which LoopSimplify can no longer always guarantee. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86181 91177308-0d34-0410-b5e6-96231b3b80d8
* The introduction of indirectbr meant the introduction ofDan Gohman2009-11-051-21/+82
| | | | | | | | | | unsplittable critical edges, which means the introduction of loops which cannot be transformed to LoopSimplify form. Fix LoopSimplify to avoid transforming such loops into invalid code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86176 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach LoopUnroll how to bail if LoopSimplify can't give it what it needs.Dan Gohman2009-11-051-1/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86164 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete an unused member variable.Dan Gohman2009-11-051-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86160 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an assertion to catch indirectbr in SplitBlockPredecessors. ThisDan Gohman2009-11-051-2/+6
| | | | | | | | | | | | | makes several optimization passes abort in cases where they're currently silently miscompiling code. Remove the indirectbr assertion from SplitEdge. Indirectbr is only a problem for critical edges, and SplitEdge defers to SplitCriticalEdge to handle those, and SplitCriticalEdge has its own assertion for indirectbr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86147 91177308-0d34-0410-b5e6-96231b3b80d8
* remove a isFreeCall check: it is a callinst that can write to memory already.Chris Lattner2009-11-031-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85863 91177308-0d34-0410-b5e6-96231b3b80d8
* Alphabetize.Ted Kremenek2009-11-031-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85859 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a bug exposed by moving SRoA earlier which caused a crash building kc++Chris Lattner2009-11-021-1/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85786 91177308-0d34-0410-b5e6-96231b3b80d8
* improve comment.Chris Lattner2009-11-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85725 91177308-0d34-0410-b5e6-96231b3b80d8
* change llvm::MergeBlockIntoPredecessor to not merge two blocks BB1->BB2 Chris Lattner2009-11-011-3/+7
| | | | | | | | | | when BB2 has its address taken. Since it ends up doing BB2->rauw(BB1), this can cause the address of the entry block to be taken. Since it is generally undesirable to nuke blocks whose address is taken, even when we can, just unconditionally stop this xform. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85708 91177308-0d34-0410-b5e6-96231b3b80d8
* constant fold indirectbr(blockaddress(%bb)) -> br label %bb.Chris Lattner2009-11-011-9/+46
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85704 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 85678/85680. The decision is to stay with the current form of Chris Lattner2009-11-011-7/+2
| | | | | | | | indirectbr, thus we don't need "blockaddr(@func, null)". Eliminate it for simplicity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85699 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm::SplitEdge should refuse to split an edge from an indirectbr.Chris Lattner2009-10-311-0/+2
| | | | | | | Fix CodeGenPrepare to not try to split edges from indirectbr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85690 91177308-0d34-0410-b5e6-96231b3b80d8
* update the comment above llvm::SplitCriticalEdge, and makeChris Lattner2009-10-311-6/+21
| | | | | | | it abort on IndirectBrInst as describe in the comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85688 91177308-0d34-0410-b5e6-96231b3b80d8
* adjust a couple xforms to work with null bb's in BlockAddress.Chris Lattner2009-10-311-2/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85680 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r85667. LoopUnroll currently can't call utility functions whichDan Gohman2009-10-312-24/+94
| | | | | | | | auto-update the DominatorTree because it doesn't keep the DominatorTree current while it works. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85670 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove redundant code.Dan Gohman2009-10-311-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85668 91177308-0d34-0410-b5e6-96231b3b80d8
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