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* Allow readonly functions to unwind exceptions. TeachDuncan Sands2009-05-061-8/+18
| | | | | | | | | the optimizers about this. For example, a readonly function with no uses cannot be removed unless it is also marked nounwind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71071 91177308-0d34-0410-b5e6-96231b3b80d8
* Updated the comment for isArithmeticShift() to match reality.Misha Brukman2009-03-291-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68016 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace the PointerLikeTypeTraits::getNumLowBitsAvailableChris Lattner2009-03-291-0/+12
| | | | | | | | | | | | | | | | | function with a new NumLowBitsAvailable enum, which makes the value available as an integer constant expression. Add PointerLikeTypeTraits specializations for Instruction* and Use** since they are only guaranteed 4-byte aligned. Enhance PointerIntPair to know about (and enforce) the alignment specified by PointerLikeTypeTraits. This should allow things like PointerIntPair<PointerIntPair<void*, 1,bool>, 1, bool> because the inner one knows that 2 low bits are free. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67979 91177308-0d34-0410-b5e6-96231b3b80d8
* add a new insertAfter method, patch by Tom Jablin!Chris Lattner2009-01-131-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62158 91177308-0d34-0410-b5e6-96231b3b80d8
* improve const correctness.Chris Lattner2008-11-271-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60168 91177308-0d34-0410-b5e6-96231b3b80d8
* Correct the name of isTrapping in comments.Dan Gohman2008-10-151-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57606 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch the asmprinter (.ll) and all the stuff it requires over toChris Lattner2008-08-231-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | use raw_ostream instead of std::ostream. Among other goodness, this speeds up llvm-dis of kc++ with a release build from 0.85s to 0.49s (88% faster). Other interesting changes: 1) This makes Value::print be non-virtual. 2) AP[S]Int and ConstantRange can no longer print to ostream directly, use raw_ostream instead. 3) This fixes a bug in raw_os_ostream where it didn't flush itself when destroyed. 4) This adds a new SDNode::print method, instead of only allowing "dump". A lot of APIs have both std::ostream and raw_ostream versions, it would be useful to go through and systematically anihilate the std::ostream versions. This passes dejagnu, but there may be minor fallout, plz let me know if so and I'll fix it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55263 91177308-0d34-0410-b5e6-96231b3b80d8
* Fold the useful features of alist and alist_node into ilist, andDan Gohman2008-07-281-13/+2
| | | | | | | | | | | | | | | | | a new ilist_node class, and remove them. Unlike alist_node, ilist_node doesn't attempt to manage storage itself, so it avoids the associated problems, including being opaque in gdb. Adjust the Recycler class so that it doesn't depend on alist_node. Also, change it to use explicit Size and Align parameters, allowing it to work when the largest-sized node doesn't have the greatest alignment requirement. Change MachineInstr's MachineMemOperand list from a pool-backed alist to a std::list for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54146 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an insertBefore method for attaching previously unattached instructions,Owen Anderson2008-06-171-0/+4
| | | | | | | such as those created by clone(), to a basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52424 91177308-0d34-0410-b5e6-96231b3b80d8
* merge of use-diet branch to trunkGabor Greif2008-05-101-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50943 91177308-0d34-0410-b5e6-96231b3b80d8
* add a new Instruction::mayReadFromMemory predicate, makeChris Lattner2008-05-081-0/+4
| | | | | | | Instruction::mayWriteToMemory stronger for invokes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50858 91177308-0d34-0410-b5e6-96231b3b80d8
* add a handy helper method to instruction, useful for determiningChris Lattner2008-04-201-0/+7
| | | | | | | | whether it is used outside of some block. This can be used to see if there are any non-local references, for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50004 91177308-0d34-0410-b5e6-96231b3b80d8
* Add const qualifiers.Dan Gohman2008-04-091-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49443 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't attribute in file headers anymore. See llvmdev for theChris Lattner2007-12-291-2/+2
| | | | | | | | discussion of this change. Boy are my fingers tired. ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
* split isBinaryOp into a static and member version.Chris Lattner2007-12-101-18/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44814 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverting dtor devirtualization patch.Gordon Henriksen2007-12-101-3/+3
| | | | | | | _sabre_: it has a major problem: by the time ~Value is run, all of the "parts" of the derived classes have been destroyed _sabre_: the vtable lives to fight another day git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44760 91177308-0d34-0410-b5e6-96231b3b80d8
* Devirtualizing Value destructor (PR889). Patch by Pawel Kunio!Gordon Henriksen2007-12-091-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44747 91177308-0d34-0410-b5e6-96231b3b80d8
* It's not necessary to do rounding for alloca operations when the requestedDan Gohman2007-07-181-0/+239
alignment is equal to the stack alignment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
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