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* Fix PR2002. Suppose n is the initial value for the induction Wojciech Matyjewicz2008-02-122-6/+20
| | | | | | | | | | | variable (with step 1) and m is its final value. Then, the correct trip count is SMAX(m,n)-n. Previously, we used SMAX(0,m-n), but m-n may overflow and can't in general be interpreted as signed. Patch by Nick Lewycky. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47007 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix for bug 1996: optimize out loads of undef. This code basically just Eli Friedman2008-02-121-1/+28
| | | | | | | checks for a malloc/alloca immediately followed by a load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47006 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comment.Evan Cheng2008-02-121-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47002 91177308-0d34-0410-b5e6-96231b3b80d8
* Unbreak various insert_vector_elt and extract_vector_elt tests in presence ↵Evan Cheng2008-02-121-4/+4
| | | | | | of SSE4. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47001 91177308-0d34-0410-b5e6-96231b3b80d8
* Test case for annotate builtin.Tanya Lattner2008-02-121-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46999 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some test cases.Evan Cheng2008-02-123-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46998 91177308-0d34-0410-b5e6-96231b3b80d8
* More violation fixes.Bill Wendling2008-02-121-5/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46997 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix validation errors: di -> dt.Bill Wendling2008-02-121-27/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46996 91177308-0d34-0410-b5e6-96231b3b80d8
* Reformatting. Adding "doc_code" divisions for code examples. Updated someBill Wendling2008-02-121-119/+231
| | | | | | | of the examples to reflect the current .TD files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46995 91177308-0d34-0410-b5e6-96231b3b80d8
* rip out llvm 2.2 stuff in preparation for llvm 2.3Chris Lattner2008-02-121-260/+70
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46993 91177308-0d34-0410-b5e6-96231b3b80d8
* heavily refactor this to have less duplication between BUILD_FOR_WEBSITE ↵Chris Lattner2008-02-121-40/+30
| | | | | | mode and not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46991 91177308-0d34-0410-b5e6-96231b3b80d8
* remove unknown detailsChris Lattner2008-02-121-4/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46985 91177308-0d34-0410-b5e6-96231b3b80d8
* Add 2.2 release tag.Tanya Lattner2008-02-121-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46981 91177308-0d34-0410-b5e6-96231b3b80d8
* Stuff noticed while grepping codeNate Begeman2008-02-111-65/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46979 91177308-0d34-0410-b5e6-96231b3b80d8
* Correct the order of the arguments in the examples in the commentsDan Gohman2008-02-111-3/+3
| | | | | | | for APInt::getBitsSet. And fix an off-by-one bug in "wrapping" mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46978 91177308-0d34-0410-b5e6-96231b3b80d8
* The factories for ImutAVLTree/ImmutableSet/ImmutableMap now take an (optional)Ted Kremenek2008-02-112-6/+28
| | | | | | | | | BumpPtrAllocator argument to their constructors. This BumpPtrAllocator will be used to allocate trees. If no BumpPtrAllocator is provided, one is created (as before). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46975 91177308-0d34-0410-b5e6-96231b3b80d8
* Added blurb for CellSPU progressScott Michel2008-02-111-2/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46968 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize the handling of call and return arguments,Duncan Sands2008-02-111-136/+85
| | | | | | | | in preparation for apint support. These changes are intended to have no functional effect. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46967 91177308-0d34-0410-b5e6-96231b3b80d8
* From Chris' review: use isa instead of explicitly using classof.Dan Gohman2008-02-111-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46964 91177308-0d34-0410-b5e6-96231b3b80d8
* From Chris' review: minor corrections in comments.Dan Gohman2008-02-111-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46963 91177308-0d34-0410-b5e6-96231b3b80d8
* From Chris' review: use cast instead of dyn_cast with an assert.Dan Gohman2008-02-111-8/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46962 91177308-0d34-0410-b5e6-96231b3b80d8
* From Chris' review: fix 80 column violationsDan Gohman2008-02-111-5/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46961 91177308-0d34-0410-b5e6-96231b3b80d8
* From Chris' review: change MemOperandSDNode's constructor to pass itsDan Gohman2008-02-111-1/+1
| | | | | | | argument by reference, rather than by value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46960 91177308-0d34-0410-b5e6-96231b3b80d8
* If the LHS of the comparison is a loop-invariant we also want to move it Wojciech Matyjewicz2008-02-112-2/+17
| | | | | | | | | to the RHS. This simple change allows to compute loop iteration count for loops with condition similar to the one in the testcase (which seems to be quite common). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46959 91177308-0d34-0410-b5e6-96231b3b80d8
* Added "Profile" method to APFloat for use with FoldingSet.Ted Kremenek2008-02-116-29/+33
| | | | | | | | | | | Added member template "Add" to FoldingSetNodeID that allows "adding" arbitrary objects to a profile via dispatch to FoldingSetTrait<T>::Profile(). Removed FoldingSetNodeID::AddAPFloat and FoldingSetNodeID::APInt, as their functionality is now replaced using the above mentioned member template. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46957 91177308-0d34-0410-b5e6-96231b3b80d8
* Add arbitrary integer support to getRegisterType andDuncan Sands2008-02-111-1/+11
| | | | | | | | getNumRegisters. This is needed for calling functions with apint parameters or return values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46956 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR1798 - an error in the evaluation of SCEVAddRecExpr at an Wojciech Matyjewicz2008-02-115-64/+114
| | | | | | | | | | | | | | | | | | | | | | | | | | arbitrary iteration. The patch: 1) changes SCEVSDivExpr into SCEVUDivExpr, 2) replaces PartialFact() function with BinomialCoefficient(); the computations (essentially, the division) in BinomialCoefficient() are performed with the apprioprate bitwidth necessary to avoid overflow; unsigned division is used instead of the signed one. Computations in BinomialCoefficient() require support from the code generator for APInts. Currently, we use a hack rounding up the neccessary bitwidth to the nearest power of 2. The hack is easy to turn off in future. One remaining issue: we assume the divisor of the binomial coefficient formula can be computed accurately using 16 bits. It means we can handle AddRecs of length up to 9. In future, we should use APInts to evaluate the divisor. Thanks to Nicholas for cooperation! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46955 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a isBigEndian method to complement isLittleEndian.Duncan Sands2008-02-114-11/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46954 91177308-0d34-0410-b5e6-96231b3b80d8
* Determine whether a spill kills the register it's spilling before insertion ↵Evan Cheng2008-02-112-8/+13
| | | | | | rather than trying to undo the kill marker afterwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46953 91177308-0d34-0410-b5e6-96231b3b80d8
* tweaks from dale.Chris Lattner2008-02-111-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46952 91177308-0d34-0410-b5e6-96231b3b80d8
* updates from EvanChris Lattner2008-02-111-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46951 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable SSE4 codegen and pattern matching.Nate Begeman2008-02-115-25/+242
| | | | | | | Add some notes to the README. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46949 91177308-0d34-0410-b5e6-96231b3b80d8
* additional missing featureNate Begeman2008-02-111-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46948 91177308-0d34-0410-b5e6-96231b3b80d8
* corrected some spellingsGabor Greif2008-02-101-3/+3
| | | | | | | | maybe c380004 can be hyperlinked too? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46934 91177308-0d34-0410-b5e6-96231b3b80d8
* Various updates from Sam Bishop:Chris Lattner2008-02-109-75/+87
| | | | | | | | | | | | | | | | "I have been working my way through the JIT and Kaleidoscope tutorials in my (minuscule) spare time. Thanks again for writing them! I have attached a patch containing some minor changes, ranging from spelling and grammar fixes to adding a "Next: <next tutorial section>" hyperlink to the bottom of each page. Every page has been given the "next link" treatment, but otherwise I'm only half way through the Kaleidoscope tutorial. I will send a follow-on patch if time permits." git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46933 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix scalarrepl to not 'miscompile' undefined code, part #2.Chris Lattner2008-02-101-1/+1
| | | | | | | | This fixes the store case, my previous patch just fixed the load case. rdar://5707076. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46932 91177308-0d34-0410-b5e6-96231b3b80d8
* xmm0 variable blendsNate Begeman2008-02-101-2/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46931 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename MRegisterInfo to TargetRegisterInfo.Dan Gohman2008-02-10107-596/+614
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46930 91177308-0d34-0410-b5e6-96231b3b80d8
* close an li tagChris Lattner2008-02-101-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46929 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some Ada info and correct a few buglets.Duncan Sands2008-02-101-11/+60
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46928 91177308-0d34-0410-b5e6-96231b3b80d8
* Add truncate and AssertZext result expansion.Duncan Sands2008-02-103-0/+33
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46926 91177308-0d34-0410-b5e6-96231b3b80d8
* remove the in progress marker.Chris Lattner2008-02-101-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46925 91177308-0d34-0410-b5e6-96231b3b80d8
* validation fixesChris Lattner2008-02-101-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46924 91177308-0d34-0410-b5e6-96231b3b80d8
* final set of major updatesChris Lattner2008-02-101-54/+83
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46923 91177308-0d34-0410-b5e6-96231b3b80d8
* Return "(c1 + c2)" instead of yet another ADD node (which made this aBill Wendling2008-02-101-1/+1
| | | | | | | no-op). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46922 91177308-0d34-0410-b5e6-96231b3b80d8
* more prose, some organization improvements.Chris Lattner2008-02-101-66/+88
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46921 91177308-0d34-0410-b5e6-96231b3b80d8
* random notesChris Lattner2008-02-101-5/+32
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46920 91177308-0d34-0410-b5e6-96231b3b80d8
* add anoteChris Lattner2008-02-101-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46918 91177308-0d34-0410-b5e6-96231b3b80d8
* Match GCC's behaviour for these sections.Nick Lewycky2008-02-101-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46916 91177308-0d34-0410-b5e6-96231b3b80d8
* memopv16i8 had wrong alignment requirement, would have broken pabsbNate Begeman2008-02-091-129/+193
| | | | | | | | | pabs{b,w,d} are not two address fix extract-to-mem sse4 ops add sse4 vector sign extend nodes git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46915 91177308-0d34-0410-b5e6-96231b3b80d8
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