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2010-03-23Forgot this.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99283 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12Add a virtual destructor and give vtable a home.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12Factor checked library call optimization into a common helper class and use itBenjamin Kramer
to unify the almost identical code in CodeGenPrepare and InstCombineCalls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98338 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11stpcpy is so similar to strcpy, it doesn't deserve a complete copy of the ↵Benjamin Kramer
__strcpy_chk -> strcpy code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98284 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11Lower stpcpy_chk when possible.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11Add strncpy libcall creator. Use it when it should be used.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98219 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Move SimplifyLibCalls's LibCall builders to a separate file so theyEric Christopher
can be used in more places. Add an argument for the TargetData that most of them need. Update for the getInt8PtrTy() change. Should be no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97844 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16Rename SuccessorNumber to GetSuccessorNumber.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16Refactor to share code to find the position of a basic block successor in theBob Wilson
terminator's list of successors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05Teach SimplifyCFG about magic pointer constants.Jakob Stoklund Olesen
Weird code sometimes uses pointer constants other than null. This patch teaches SimplifyCFG to build switch instructions in those cases. Code like this: void f(const char *x) { if (!x) puts("null"); else if ((uintptr_t)x == 1) puts("one"); else if (x == (char*)2 || x == (char*)3) puts("two"); else if ((intptr_t)x == 4) puts("four"); else puts(x); } Now becomes a switch: define void @f(i8* %x) nounwind ssp { entry: %magicptr23 = ptrtoint i8* %x to i64 ; <i64> [#uses=1] switch i64 %magicptr23, label %if.else16 [ i64 0, label %if.then i64 1, label %if.then2 i64 2, label %if.then9 i64 3, label %if.then9 i64 4, label %if.then14 ] Note that LLVM's own DenseMap uses magic pointers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95439 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-30Check alignment of loads when deciding whether it is safe to execute themBob Wilson
unconditionally. Besides checking the offset, also check that the underlying object is aligned as much as the load itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94875 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29Improve isSafeToLoadUnconditionally to recognize that GEPs with constantBob Wilson
indices are safe if the result is known to be within the bounds of the underlying object. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94829 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27Don't bother with sprintf, just pass the Twine through.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94684 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-21DbgInfoIntrinsics no longer appear in an instruction's use list; so clean up ↵Victor Hernandez
looking for them in use iterations and remove OnlyUsedByDbgInfoIntrinsics() git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12add a helper function.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93251 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05Make RecursivelyDeleteTriviallyDeadInstructions,Dan Gohman
RecursivelyDeleteDeadPHINode, and DeleteDeadPHIs return a flag indicating whether they made any changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92732 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05convert various IntrinsicInst's to use class instead of struct.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92681 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05Remove dead debug info intrinsics.Devang Patel
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
2009-12-22comment fix: weakvh -> tracking vhChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91867 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-18Eliminate unnecessary LLVMContexts.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91729 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-23Pull LLVMContext out of PromoteMemToReg.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89645 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19Make EliminateDuplicatePHINodes() available as a utility functionJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89297 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10Implement support to debug inlined functions.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86748 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10move some generally useful functions out of jump threadingChris Lattner
into libanalysis and transformutils. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86735 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10refactor TryToSimplifyUncondBranchFromEmptyBlock out of SimplifyCFG.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86666 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Make a few more LLVM headers parsable as standalone headers.Douglas Gregor
Fix some problems with the hidden copy constructors for ImmutableMap/ImmutableSet found by Clang++. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86186 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01Improve the other instance of the comment.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31update the comment above llvm::SplitCriticalEdge, and makeChris Lattner
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
2009-10-31Revert r85667. LoopUnroll currently can't call utility functions whichDan Gohman
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
2009-10-31Merge the enhancements from LoopUnroll's FoldBlockIntoPredecessor intoDan Gohman
MergeBlockIntoPredecessor. This makes SimplifyCFG slightly more aggressive, and makes it unnecessary for LoopUnroll to have its own copy of this code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85667 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-24MapValue doesn't needs its LLVMContext argument.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85020 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-24Add an explicit keyword.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85009 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
2009-10-13Move the InlineCost code from Transforms/Utils to Analysis.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83998 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
2009-10-10add 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
2009-10-10Implement 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
2009-10-09Use 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
2009-10-04Do 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
2009-09-16Preserve 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
2009-09-08Re-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
2009-09-06Revert 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
2009-08-27reduce header #include'ageChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80204 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27enhance InlineFunction to be able to optionally returnChris Lattner
a the list of static allocas that it inlined. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80203 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27smallvectorize the list of returns built by CloneAndPruneFunctionInto.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80202 91177308-0d34-0410-b5e6-96231b3b80d8
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