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path: root/llvm/lib/Transforms/Utils/LCSSA.cpp
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* Remove a redundant #ifndef and add an assertion string.Dan Gohman2009-09-281-3/+1
| | | | llvm-svn: 82991
* Re-apply r80926, with fixes: keep the domtree informed of new blocksDan Gohman2009-09-081-3/+14
| | | | | | | | | | | | | | | 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. llvm-svn: 81221
* Revert r80926. It causes loop unswitch assertion and slow down some JIT ↵Evan Cheng2009-09-061-16/+3
| | | | | | tests significantly. llvm-svn: 81101
* Add a verifyAnalysis to LoopInfo, LoopSimplify, and LCSSA form that verifyDan Gohman2009-09-031-3/+16
| | | | | | | | | that these passes are properly preserved. Fix several transformation passes that claimed to preserve LoopSimplify form but weren't. llvm-svn: 80926
* Move more code back to 2.5 APIs.Owen Anderson2009-07-301-1/+1
| | | | llvm-svn: 77635
* Get rid of the Pass+Context magic.Owen Anderson2009-07-221-1/+1
| | | | llvm-svn: 76702
* More LLVMContext-ification.Owen Anderson2009-07-051-1/+2
| | | | llvm-svn: 74807
* Fix LCSSA to avoid emitting a PHI node for the unwind destination ofDan Gohman2009-06-261-2/+11
| | | | | | | an invoke instruction, since the value isn't really live across that edge. llvm-svn: 74242
* Real fix for PR3549, by using caching for predecessor counts in addition to ↵Owen Anderson2009-04-221-11/+13
| | | | | | | | the predecessors themselves. This halves the time to optimize the testcase, beyond what my previous patch did. llvm-svn: 69792
* Use PredIteratorCache in LCSSA, which gives a 37% overall speedup on the ↵Owen Anderson2009-04-221-2/+5
| | | | | | testcase from PR3549. More improvements to come. llvm-svn: 69788
* Simplify the logic of getting hold of a PHI predecessor block.Gabor Greif2009-01-231-4/+2
| | | | | | | | | There is now a direct way from value-use-iterator to incoming block in PHINode's API. This way we avoid the iterator->index->iterator trip, and especially the costly getOperandNo() invocation. Additionally there is now an assertion that the iterator really refers to one of the PHI's Uses. llvm-svn: 62869
* Change create*Pass factory functions to return Pass* instead ofDaniel Dunbar2008-10-221-1/+1
| | | | | | | | | | | LoopPass*. - Although less precise, this means they can be used in clients without RTTI (who would otherwise need to include LoopPass.h, which eventually includes things using dynamic_cast). This was the simplest solution that presented itself, but I am happy to use a better one if available. llvm-svn: 58010
* Tidy up several unbeseeming casts from pointer to intptr_t.Dan Gohman2008-09-041-1/+1
| | | | llvm-svn: 55779
* Enable first-class aggregates support.Dan Gohman2008-07-231-21/+1
| | | | | | | | | | | | Remove the GetResultInst instruction. It is still accepted in LLVM assembly and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove support for return instructions with multiple values. These are auto-upgraded to use InsertValueInst instructions. The IRBuilder still accepts multiple-value returns, and auto-upgrades them to InsertValueInst instructions. llvm-svn: 53941
* Fix whitespace in whitespace-significant pseudocode in a comment.Dan Gohman2008-06-031-2/+2
| | | | llvm-svn: 51890
* Since LCSSA switched over to DenseMap, we have to be more careful to avoid ↵Owen Anderson2008-05-301-4/+5
| | | | | | iterator invalidation. Fixes PR2385. llvm-svn: 51777
* Use a DenseMap instead of an std::map, speeding up the testcase in PR2368 by ↵Owen Anderson2008-05-261-3/+3
| | | | | | about a third. llvm-svn: 51565
* Tidy up BasicBlock::getFirstNonPHI, and change a bunch of places toDan Gohman2008-05-231-3/+1
| | | | | | use it instead of duplicating its functionality. llvm-svn: 51499
* Fix a bunch of 80col violations that arose from the Create API change. Tweak ↵Gabor Greif2008-05-151-2/+2
| | | | | | makefile targets to find these better. llvm-svn: 51143
* Change class' public PassInfo variables to by initialized with theDan Gohman2008-05-131-1/+1
| | | | | | | | | | | address of the PassInfo directly instead of calling getPassInfo. This eliminates a bunch of dynamic initializations of static data. Also, fold RegisterPassBase into PassInfo, make a bunch of its data members const, and rearrange some code to initialize data members in constructors instead of using setter member functions. llvm-svn: 51022
* Clean up the use of static and anonymous namespaces. This turned upDan Gohman2008-05-131-3/+3
| | | | | | | several things that were neither in an anonymous namespace nor static but not intended to be global. llvm-svn: 51017
* Handle multiple return values.Devang Patel2008-05-031-1/+23
| | | | llvm-svn: 50604
* API changes for class Use size reduction, wave 1.Gabor Greif2008-04-061-4/+4
| | | | | | | | Specifically, introduction of XXX::Create methods for Users that have a potentially variable number of Uses. llvm-svn: 49277
* Fix newly-introduced 4.3 warningsAnton Korobeynikov2008-02-201-1/+1
| | | | llvm-svn: 47375
* Remove attribution from file headers, per discussion on llvmdev.Chris Lattner2007-12-291-2/+2
| | | | llvm-svn: 45418
* Use SmallVector instead of std::vector.Devang Patel2007-08-211-7/+5
| | | | llvm-svn: 41207
* When one branch of condition is eliminated then head of the otherDevang Patel2007-08-171-1/+2
| | | | | | branch is not necessary immediate dominators of merge blcok in all cases. llvm-svn: 41144
* LCSSA preserves dom info.Devang Patel2007-07-301-0/+8
| | | | llvm-svn: 40604
* Now this temp. fix is not required.Devang Patel2007-07-191-4/+0
| | | | llvm-svn: 40034
* Return Undef if the block has no dominator. This was required to allowReid Spencer2007-07-161-0/+4
| | | | | | | | llvm-gcc build to succeed. Without this change it fails in libstdc++ compilation. This causes no regressions in dejagnu tests. However, someone who knows this code better might want to review it. llvm-svn: 39924
* Make LCSSA a loop pass.Devang Patel2007-07-131-21/+11
| | | | llvm-svn: 39844
* Maintain ETNode as part of DomTreeNode.Devang Patel2007-06-071-1/+1
| | | | | | This adds redundancy for now. llvm-svn: 37492
* s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/gDevang Patel2007-06-041-8/+8
| | | | llvm-svn: 37407
* s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/gDevang Patel2007-06-031-8/+8
| | | | llvm-svn: 37403
* Fix typos.Dan Gohman2007-05-111-1/+1
| | | | llvm-svn: 36994
* Fix typo in comment.Nick Lewycky2007-05-061-1/+1
| | | | llvm-svn: 36873
* Drop 'const'Devang Patel2007-05-031-2/+2
| | | | llvm-svn: 36662
* Use 'static const char' instead of 'static const int'.Devang Patel2007-05-021-2/+2
| | | | | | | Due to darwin gcc bug, one version of darwin linker coalesces static const int, which defauts PassID based pass identification. llvm-svn: 36652
* Do not use typeinfo to identify pass in pass manager.Devang Patel2007-05-011-0/+4
| | | | llvm-svn: 36632
* Revert Owen's last check-in. This is breaking Mac OS X / PPC llvm-gcc bootstrap.Evan Cheng2007-04-181-18/+21
| | | | llvm-svn: 36258
* Use ETForest instead of DominatorTree.Owen Anderson2007-04-181-21/+18
| | | | llvm-svn: 36247
* avoid copying sets and vectors around.Chris Lattner2007-04-141-7/+6
| | | | llvm-svn: 36017
* Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes inReid Spencer2007-02-051-1/+2
| | | | | | | the Transforms library. This reduces debug library size by 132 KB, debug binary size by 376 KB, and reduces link time for llvm tools slightly. llvm-svn: 33939
* For PR1177:Reid Spencer2007-02-051-4/+4
| | | | | | Revert last patch which caused iteration invalidation. llvm-svn: 33901
* Use DenseMap for pointer->pointer maps.Owen Anderson2007-02-051-4/+4
| | | | llvm-svn: 33897
* switch more statistics over to STATISTIC, eliminating static ctors. Also,Chris Lattner2006-12-191-4/+3
| | | | | | delete some dead ones. llvm-svn: 32694
* Detemplatize the Statistic class. The only type it is instantiated withChris Lattner2006-12-061-1/+1
| | | | | | is 'unsigned'. llvm-svn: 32279
* generalize the fix for PR977 to also fixChris Lattner2006-10-311-28/+26
| | | | | | Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll llvm-svn: 31317
* Fix PR977 and Transforms/LCSSA/2006-10-31-UnreachableBlock.llChris Lattner2006-10-311-1/+8
| | | | llvm-svn: 31315
* eliminate RegisterOpt. It does the same thing as RegisterPass.Chris Lattner2006-08-271-1/+1
| | | | llvm-svn: 29925
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