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* Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. ↵Sylvestre Ledru2012-09-271-1/+1
| | | | | | See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164768 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo 'iff' => 'if'Sylvestre Ledru2012-09-271-1/+1
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* Fix PR11985Michael Liao2012-09-121-2/+2
| | | | | | | | | | | | | - BlockAddress has no support of BA + offset form and there is no way to propagate that offset into machine operand; - Add BA + offset support and a new interface 'getTargetBlockAddress' to simplify target block address forming; - All targets are modified to use new interface and X86 backend is enhanced to support BA + offset addressing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163743 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a long standing wart: all the ComplexPattern's were beingChris Lattner2010-09-211-4/+4
| | | | | | | | | | | | passed the root of the match, even though only a few patterns actually needed this (one in X86, several in ARM [which should be refactored anyway], and some in CellSPU that I don't feel like detangling). Instead of requiring all ComplexPatterns to take the dead root, have targets opt into getting the root by putting SDNPWantRoot on the ComplexPattern. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114471 91177308-0d34-0410-b5e6-96231b3b80d8
* zap dead code.Chris Lattner2010-09-041-9/+0
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* Propagate debug loc.Devang Patel2010-07-061-1/+2
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* Use const qualifiers with TargetLowering. This eliminates severalDan Gohman2010-04-171-3/+2
| | | | | | | | | | | | | | const_casts, and it reinforces the design of the Target classes being immutable. SelectionDAGISel::IsLegalToFold is now a static member function, because PIC16 uses it in an unconventional way. There is more room for API cleanup here. And PIC16's AsmPrinter no longer uses TargetLowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101635 91177308-0d34-0410-b5e6-96231b3b80d8
* Add const qualifiers to CodeGen's use of LLVM IR constructs.Dan Gohman2010-04-151-3/+3
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* remove 300 lines of code that is now dead in the MSP430 backendChris Lattner2010-03-021-293/+1
| | | | | | | | now that isel handles chains more aggressively. This also allows us to make isLegalToFold non-virtual. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97597 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some issues in WalkChainUsers dealing with Chris Lattner2010-03-021-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CopyToReg/CopyFromReg/INLINEASM. These are annoying because they have the same opcode before an after isel. Fix this by setting their NodeID to -1 to indicate that they are selected, just like what automatically happens when selecting things that end up being machine nodes. With that done, give IsLegalToFold a new flag that causes it to ignore chains. This lets the HandleMergeInputChains routine be the one place that validates chains after a match is successful, enabling the new hotness in chain processing. This smarter chain processing eliminates the need for "PreprocessRMW" in the X86 and MSP430 backends and enables MSP to start matching it's multiple mem operand instructions more aggressively. I currently #if out the dead code in the X86 backend and MSP backend, I'll remove it for real in a follow-on patch. The testcase changes are: test/CodeGen/X86/sse3.ll: we generate better code test/CodeGen/X86/store_op_load_fold2.ll: PreprocessRMW was miscompiling this before, we now generate correct code Convert it to filecheck while I'm at it. test/CodeGen/MSP430/Inst16mm.ll: Add a testcase for mem/mem folding to make anton happy. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97596 91177308-0d34-0410-b5e6-96231b3b80d8
* Sink InstructionSelect() out of each target into SDISel, and rename itChris Lattner2010-03-021-40/+8
| | | | | | | | | | | | | | DoInstructionSelection. Inline "SelectRoot" into it from DAGISelHeader. Sink some other stuff out of DAGISelHeader into SDISel. Eliminate the various 'Indent' stuff from various targets, which dates to when isel was recursive. 17 files changed, 114 insertions(+), 430 deletions(-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97555 91177308-0d34-0410-b5e6-96231b3b80d8
* Split SelectionDAGISel::IsLegalAndProfitableToFold toEvan Cheng2010-02-151-7/+6
| | | | | | | | | IsLegalToFold and IsProfitableToFold. The generic version of the later simply checks whether the folding candidate has a single use. This allows the target isel routines more flexibility in deciding whether folding makes sense. The specific case we are interested in is folding constant pool loads with multiple uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96255 91177308-0d34-0410-b5e6-96231b3b80d8
* Change SelectCode's argument from SDValue to SDNode *, to make it moreDan Gohman2010-01-051-34/+33
| | | | | | | | | | clear what information these functions are actually using. This is also a micro-optimization, as passing a SDNode * around is simpler than passing a { SDNode *, int } by value or reference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92564 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead variable.Bill Wendling2009-12-281-1/+0
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* Do not allow uninitialize access during debug printingAnton Korobeynikov2009-12-131-2/+2
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* Update for new getBlockAddress signature.Dan Gohman2009-11-201-2/+2
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* Fix DenseMap iterator constness.Jeffrey Yasskin2009-11-101-1/+1
| | | | | | | | | | | | | | | | | | | | This patch forbids implicit conversion of DenseMap::const_iterator to DenseMap::iterator which was possible because DenseMapIterator inherited (publicly) from DenseMapConstIterator. Conversion the other way around is now allowed as one may expect. The template DenseMapConstIterator is removed and the template parameter IsConst which specifies whether the iterator is constant is added to DenseMapIterator. Actually IsConst parameter is not necessary since the constness can be determined from KeyT but this is not relevant to the fix and can be addressed later. Patch by Victor Zverovich! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86636 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix invalid operand updates & implement post-inc memory operandsAnton Korobeynikov2009-11-081-16/+62
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* First try of the post-inc operands handling... Not fully worked, though :(Anton Korobeynikov2009-11-071-10/+77
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* Add some dummy support for post-incremented loadsAnton Korobeynikov2009-11-071-0/+40
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* Initial support for addrmode handling. Tests by Brian Lucas!Anton Korobeynikov2009-11-071-36/+209
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* Remove uninteresting and confusing debug output.Dan Gohman2009-11-051-2/+0
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* Shift art to the right to keep GCC from complaining about multi-line comments.Benjamin Kramer2009-10-221-14/+14
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* Use special DAG-to-DAG preprocessing to allow mem-mem instructions to be ↵Anton Korobeynikov2009-10-221-19/+149
| | | | | | | | selected. Yay for ASCII graphics! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84808 91177308-0d34-0410-b5e6-96231b3b80d8
* Add DAG printing for RMW stuff debuggingAnton Korobeynikov2009-10-211-0/+16
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* RMW preprocessing stuff was incorrect. Grab the stuff from x86 backend and ↵Anton Korobeynikov2009-10-211-53/+73
| | | | | | disable some tests until it will be clever enough to handle them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84775 91177308-0d34-0410-b5e6-96231b3b80d8
* Add MSP430 mem-mem insts support. Patch by Brian Lucas with some my refinementsAnton Korobeynikov2009-10-111-0/+127
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* Implement 'm' memory operand properlyAnton Korobeynikov2009-10-111-0/+20
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* Rename getTargetNode to getMachineNode, for consistency with theDan Gohman2009-09-251-2/+2
| | | | | | | | | naming scheme used in SelectionDAG, where there are multiple kinds of "target" nodes, but "machine" nodes are nodes which represent a MachineInstr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82790 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some refactos for iostream changes (in -Asserts mode).Daniel Dunbar2009-08-231-4/+4
| | | | | | - The world needs better C++ refactoring tools, can I get an Amen!? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79843 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate the last DOUTs from the targets.Chris Lattner2009-08-231-19/+9
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* Split EVT into MVT and EVT, the former representing _just_ a primitive type, ↵Owen Anderson2009-08-111-15/+15
| | | | | | | | | while the latter is capable of representing either a primitive or an extended type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78713 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename MVT to EVT, in preparation for splitting SimpleValueType out into its ↵Owen Anderson2009-08-101-15/+15
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* Implement changes from Chris's feedback.Torok Edwin2009-07-081-0/+2
| | | | | | | Finish converting lib/Target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75043 91177308-0d34-0410-b5e6-96231b3b80d8
* Restore minor deletion.Mike Stump2009-05-041-2/+0
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* Update due to mainline API changeAnton Korobeynikov2009-05-031-4/+5
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* Add 8bit shiftsAnton Korobeynikov2009-05-031-1/+8
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* Properly handle ExternalSymbol'sAnton Korobeynikov2009-05-031-0/+3
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* Small tweakingAnton Korobeynikov2009-05-031-2/+2
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* Proper handle loading of effective address of stack slot stuffAnton Korobeynikov2009-05-031-9/+15
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* Match frame indexesAnton Korobeynikov2009-05-031-9/+11
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* Reverse order of memory argumentsAnton Korobeynikov2009-05-031-6/+6
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* Correct asmprinting of memory operandsAnton Korobeynikov2009-05-031-9/+7
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* Match wrapper node for addressAnton Korobeynikov2009-05-031-2/+17
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* Basic support for mem=>reg movesAnton Korobeynikov2009-05-031-0/+33
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* Clearify the usage and add some debug stuffAnton Korobeynikov2009-05-031-1/+49
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* CleanupAnton Korobeynikov2009-05-031-2/+1
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* Dummy MSP430 backendAnton Korobeynikov2009-05-031-0/+84
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