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* Nick Lewycky pointed out that this code makes changes unconditionally.Dan Gohman2010-01-051-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92739 91177308-0d34-0410-b5e6-96231b3b80d8
* Have TableGen emit code that uses dbgs() rather than errs().David Greene2010-01-051-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92738 91177308-0d34-0410-b5e6-96231b3b80d8
* If a scope has only one instruction then first instruction is also the last ↵Devang Patel2010-01-052-1/+19
| | | | | | instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92736 91177308-0d34-0410-b5e6-96231b3b80d8
* Set Changed properly after calling DeleteDeadPHIs.Dan Gohman2010-01-052-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92735 91177308-0d34-0410-b5e6-96231b3b80d8
* Use do+while instead of while for loops which obviously have aDan Gohman2010-01-0512-29/+23
| | | | | | | non-zero trip count. Use SmallVector's pop_back_val(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92734 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix indentation.Dan Gohman2010-01-051-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92733 91177308-0d34-0410-b5e6-96231b3b80d8
* Make RecursivelyDeleteTriviallyDeadInstructions,Dan Gohman2010-01-054-15/+25
| | | | | | | | 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
* Some versions of GCC don't like non-static data members in sizeofDan Gohman2010-01-051-1/+1
| | | | | | | in this context. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92731 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a SmallBitVector class, which mimics BitVector but uses onlyDan Gohman2010-01-054-0/+671
| | | | | | | | | | | | | a single pointer (PointerIntPair) member. In "small" mode, the pointer field is reinterpreted as a set of bits. In "large" mode, the pointer points to a heap-allocated object. Also, give BitVector empty and swap functions. And, add some simple unittests for BitVector and SmallBitVector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92730 91177308-0d34-0410-b5e6-96231b3b80d8
* Add newline at EOF.Benjamin Kramer2010-01-051-1/+1
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* Avoid going through the LLVMContext for type equality where it's safe to ↵Benjamin Kramer2010-01-0525-58/+46
| | | | | | dereference the type pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92726 91177308-0d34-0410-b5e6-96231b3b80d8
* prune some #includes.Chris Lattner2010-01-051-8/+1
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* split and/or/xor out into one overly-large (2000LOC) file. However, I thinkChris Lattner2010-01-053-1963/+1978
| | | | | | | it does make sense to keep them together, at least for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92711 91177308-0d34-0410-b5e6-96231b3b80d8
* missed file with previous commit.Chris Lattner2010-01-051-418/+0
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* split instcombine of shifts out to its own file.Chris Lattner2010-01-052-0/+437
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* eliminate getBitCastOperand and simplify some over-complex inbounds stuff.Chris Lattner2010-01-051-46/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92708 91177308-0d34-0410-b5e6-96231b3b80d8
* split call handling out to InstCombineCalls.cppChris Lattner2010-01-053-1110/+1133
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* optimize cttz and ctlz when we can prove something about the Chris Lattner2010-01-052-2/+58
| | | | | | | leading/trailing bits. Patch by Alastair Lynn! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92706 91177308-0d34-0410-b5e6-96231b3b80d8
* this inline function moved to addsubChris Lattner2010-01-051-24/+0
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* split add/sub out to its own file. Eliminate use ofChris Lattner2010-01-053-695/+749
| | | | | | | | dyn_castNotVal in the X+~X transform. dyn_castNotVal is dramatic overkill for what the xform needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92704 91177308-0d34-0410-b5e6-96231b3b80d8
* all the places we use hasOneUse() we know are instructions, so inlineChris Lattner2010-01-051-12/+9
| | | | | | | and simplify. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92700 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate AssociativeOpt and its last uses.Chris Lattner2010-01-051-35/+2
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* inline the FoldICmpLogical functor.Chris Lattner2010-01-051-98/+90
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* Code refactoring.Evan Cheng2010-01-051-9/+19
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* inline the 'AddRHS' transformation, simplifying things significantly.Chris Lattner2010-01-051-39/+4
| | | | | | | | | | Eliminate the 'AddMaskingAnd' transformation, it is redundant with this more general code right below it: // A+B --> A|B iff A and B have no bits set in common. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92693 91177308-0d34-0410-b5e6-96231b3b80d8
* remove massive over-genality manifested as a big template Chris Lattner2010-01-051-60/+1
| | | | | | | | | that got instantiated. There is no reason for instcombine to try this hard for simple associative optimizations. Next up, eliminate the template completely. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92692 91177308-0d34-0410-b5e6-96231b3b80d8
* split mul/div/rem instructions out to their own file.Chris Lattner2010-01-054-674/+701
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* clean up header.Chris Lattner2010-01-051-7/+2
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* split select out to its own file.Chris Lattner2010-01-053-692/+712
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* split out load/store/alloca.Chris Lattner2010-01-053-607/+614
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* reduce indentationChris Lattner2010-01-051-4/+7
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* split vector stuff out to InstCombineVectorOps.cppChris Lattner2010-01-053-540/+558
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* split PHI node stuff out to InstCombinePHI.cppChris Lattner2010-01-053-821/+842
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* convert various IntrinsicInst's to use class instead of struct.Chris Lattner2010-01-053-14/+24
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* fix an infinite loop in reassociate building emacs.Chris Lattner2010-01-052-0/+19
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* Change this back to errs().David Greene2010-01-051-2/+1
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* These should probably be errs().David Greene2010-01-051-3/+3
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* Delete renaming use of dead dbg intrinsics.Devang Patel2010-01-054-22/+0
| | | | | | | | | | | Intrinsic::dbg_stoppoint Intrinsic::dbg_region_start Intrinsic::dbg_region_end Intrinsic::dbg_func_start git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92672 91177308-0d34-0410-b5e6-96231b3b80d8
* Use StringRef.startswith().Devang Patel2010-01-051-37/+20
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* Fix a build error by adding a missing commit.David Greene2010-01-051-0/+4
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* Fix a build error and change errs() to dbgs().David Greene2010-01-051-1/+2
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* Remove an unneeded svn:ignore property.Dan Gohman2010-01-050-0/+0
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* Enable debug buffering.David Greene2010-01-051-0/+4
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* Enable debug buffering.David Greene2010-01-051-0/+5
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* Change errs() to dbgs().David Greene2010-01-051-2/+3
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* Change errs() to dbgs().David Greene2010-01-051-10/+11
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* Change errs() to dbgs().David Greene2010-01-051-3/+3
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* Change errs() to dbgs().David Greene2010-01-051-9/+9
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* Change errs() to dbgs().David Greene2010-01-051-2/+3
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* Change errs() to dbgs().David Greene2010-01-051-29/+30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92660 91177308-0d34-0410-b5e6-96231b3b80d8
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