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2009-10-20Fix PR5258, jump-threading creating invalid PHIs.Torok Edwin
When an incoming value for a PHI is updated, we must also updated all other incoming values for the same BB to match, otherwise we create invalid PHIs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84638 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-19Fix SplitBlockPredecessors' LoopInfo updating code to handle the caseDan Gohman
where a loop's header is being split and it has predecessors which are not contained by the most-nested loop which contains the loop. This fixes PR5235. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84505 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-19Change instnamer to name arguments "arg" instead of "tmp" for clarity, andDan Gohman
to name basic blocks "bb" instead of "BB", for consistency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84502 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Simplify some code (first hunk) and fix PR5208 (second hunk) byChris Lattner
updating the callgraph when introducing a call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84310 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Remove MallocInst from LLVM Instructions.Victor Hernandez
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84299 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Strip trailing white space.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84256 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Update CMake file.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84001 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Commit the removal of this file, which is now moved to lib/Analysis.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83999 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Start refactoring the inline cost estimation code so that it can be usedDan Gohman
for purposes other than inlining. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83997 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13change simplifycfg to not duplicate 'unwind' instructions. HopefullyChris Lattner
this will increase the likelihood of common code getting sunk towards the unwind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83996 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-11rewrite LCSSA to use SSAUpdate, to only return true if it modifiesChris Lattner
the IR, and to implement the FIXME'd optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83748 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-11clean up and simplify some code. Don't use setvector when things will beChris Lattner
inserted only once, just use vector. Don't compute ExitBlocks unless we need it, change std::sort to array_pod_sort. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10add a simple helper method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83745 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10add ability for clients of SSAUpdater to find out about theChris Lattner
PHI nodes inserted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83744 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10add the ability to get a rewritten value from the middle of a block,Chris Lattner
not just at the end. Add a big comment explaining when this could be useful (which never happens for jump threading). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83741 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10rename GetValueInBlock -> GetValueAtEndOfBlock to better reflect Chris Lattner
what it does. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83740 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10use a typedef instead of spelling out an insane type. Yay for auto someday.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10Implement an efficient and fully general SSA update mechanism that Chris Lattner
works on unstructured CFGs. This implements PR217, our oldest open PR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10random tidyingChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83701 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09Use names instead of numbers for some of the magicDale Johannesen
constants used in inlining heuristics (especially those used in more than one file). No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83675 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-07Add FreeInst to the "is a call" check for Insts that are calls, butEric Christopher
not intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83441 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-07While we still have a MallocInst treat it as a call like any otherEric Christopher
for inlining. When MallocInst goes away this code will be subsumed as part of calls and work just fine... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83434 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-06Introduce and use convenience methods for getting pointer typesDuncan Sands
where the element is of a basic builtin type. For example, to get an i8* use getInt8PtrTy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-05Remove an unnnecessary LLVMContext argument inDan Gohman
ConstantFoldLoadThroughGEPConstantExpr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-04Do away with the strange use of BitVectors in SSI, and just use normal sets. ↵Owen Anderson
This makes the code much more C++/LLVM-ish. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83286 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-04Fix a typo in the comment.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83283 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-04SSI needs to require DT and DF transitively, since it uses them outside of ↵Owen Anderson
its runOnFunction. Similarly, it can be marked setPreservesAll, since it does no work in its runOnFunction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83282 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30Fix this code so that it doesn't try to iterate through a std::vectorDan Gohman
while calling changeImmediateDominator, which removes elements from the vector. This fixes PR5097. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83166 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-28Remove a redundant #ifndef and add an assertion string.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82991 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-28Convert LoopSimplify and LoopExtractor from FunctionPass to LoopPass.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82990 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27calls are already handled, malloc doesn't need a special case.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82931 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-27Instruction::clone does not need to take an LLVMContext&. Remove that andNick Lewycky
update all the callers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-23A minor improvment in accuracy to inline costDale Johannesen
computation, and some cosmetics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82660 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-21tidy upChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82488 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-18Enhance transform passes so that they apply the same tranforms to malloc ↵Victor Hernandez
calls as to MallocInst. Reviewed by Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82300 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-18Update malloc call creation code (AllocType is now the element type of the ↵Victor Hernandez
malloc, not the resulting type). In getMallocArraySize(), fix bug in the case that array size is the product of 2 constants. Extend isArrayMalloc() and getMallocArraySize() to handle case where malloc is used as char array. Ensure that ArraySize in LowerAllocations::runOnBasicBlock() is correct type. Extend Instruction::isSafeToSpeculativelyExecute() to handle malloc calls. Add verification for malloc calls. Reviewed by Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82257 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-16Preserve ProfileInfo during CodeGenPrepare.Andreas Neustifter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82034 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
2009-09-09Preserve ProfileInfo.Andreas Neustifter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81360 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
2009-09-06Fix comment.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81138 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
2009-09-03Add 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
2009-09-03back 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
2009-09-01remove 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
2009-09-01Change CallGraphNode to maintain it's Function as an AssertingVHChris Lattner
for sanity. This didn't turn up any bugs. Change CallGraphNode to maintain its "callsite" information in the call edges list as a WeakVH instead of as an instruction*. This fixes a broad class of dangling pointer bugs, and makes CallGraph have a number of useful invariants again. This fixes the class of problem indicated by PR4029 and PR3601. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80663 91177308-0d34-0410-b5e6-96231b3b80d8
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