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path: root/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
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* Improve code generation for vselect on SSE2:Nadav Rotem2011-10-19
| | | | | | | | | | | When checking the availability of instructions using the TLI, a 'promoted' instruction IS available. It means that the value is bitcasted to another type for which there is an operation. The correct check for the availablity of an instruction is to check if it should be expanded. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142542 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in the legalization of vector anyext-load and trunc-store. Mem ↵Nadav Rotem2011-10-18
| | | | | | Index starts with zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142434 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bunch of unused variable warnings when doing a releaseDuncan Sands2011-10-18
| | | | | | | build with gcc-4.6. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142350 91177308-0d34-0410-b5e6-96231b3b80d8
* Removed set, but unused variable.Chad Rosier2011-10-17
| | | | | | | Patch by Joe Abbey <jabbey@arxan.com>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142206 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the legalization of vector loads and stores into LegalizeVectorOps. In someNadav Rotem2011-10-15
| | | | | | | | cases we need the second type-legalization pass in order to support all cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142060 91177308-0d34-0410-b5e6-96231b3b80d8
* white space cleanupsNadav Rotem2011-09-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139994 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the assertion which checks the size of the input operand.Nadav Rotem2011-09-13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139633 91177308-0d34-0410-b5e6-96231b3b80d8
* Add vselect target support for targets that do not support blend but do supportNadav Rotem2011-09-13
| | | | | | | | xor/and/or (For example SSE2). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139623 91177308-0d34-0410-b5e6-96231b3b80d8
* Add codegen support for vector select (in the IR this means a selectDuncan Sands2011-09-06
| | | | | | | | | | | | | with a vector condition); such selects become VSELECT codegen nodes. This patch also removes VSETCC codegen nodes, unifying them with SETCC nodes (codegen was actually often using SETCC for vector SETCC already). This ensures that various DAG combiner optimizations kick in for vector comparisons. Passes dragonegg bootstrap with no testsuite regressions (nightly testsuite as well as "make check-all"). Patch mostly by Nadav Rotem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139159 91177308-0d34-0410-b5e6-96231b3b80d8
* [VECTOR-SELECT]Nadav Rotem2011-07-14
| | | | | | | | | | | | | During type legalization we often use the SIGN_EXTEND_INREG SDNode. When this SDNode is legalized during the LegalizeVector phase, it is scalarized because non-simple types are automatically marked to be expanded. In this patch we add support for lowering SIGN_EXTEND_INREG manually. This fixes CodeGen/X86/vec_sext.ll when running with the '-promote-elements' flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135144 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for legalizing UINT_TO_FP of vectors on platforms which doNadav Rotem2011-03-19
| | | | | | | | | | not have native support for this operation (such as X86). The legalized code uses two vector INT_TO_FP operations and is faster than scalarizing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127951 91177308-0d34-0410-b5e6-96231b3b80d8
* Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.Wesley Peck2010-11-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119990 91177308-0d34-0410-b5e6-96231b3b80d8
* Change UpdateNodeOperands' operand and return value from SDValue toDan Gohman2010-06-18
| | | | | | | SDNode *, since it doesn't care about the ResNo value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106282 91177308-0d34-0410-b5e6-96231b3b80d8
* Use const qualifiers with TargetLowering. This eliminates severalDan Gohman2010-04-17
| | | | | | | | | | | | | | 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
* Revert an earlier change to SIGN_EXTEND_INREG for vectors. The VTSDNodeDan Gohman2010-01-09
| | | | | | | | | | | really does need to be a vector type, because TargetLowering::getOperationAction for SIGN_EXTEND_INREG uses that type, and it needs to be able to distinguish between vectors and scalars. Also, fix some more issues with legalization of vector casts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93043 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG.Dan Gohman2009-12-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91158 91177308-0d34-0410-b5e6-96231b3b80d8
* improve portability to avoid conflicting with std::next in c++'0x.Chris Lattner2009-12-03
| | | | | | | Patch by Howard Hinnant! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90365 91177308-0d34-0410-b5e6-96231b3b80d8
* Added support to allow clients to custom widen. For X86, custom widen ↵Mon P Wang2009-11-30
| | | | | | | | | | vectors for divide/remainder since these operations can trap by unroll them and adding undefs for the resulting vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90108 91177308-0d34-0410-b5e6-96231b3b80d8
* Split EVT into MVT and EVT, the former representing _just_ a primitive type, ↵Owen Anderson2009-08-11
| | | | | | | | | 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 Anderson2009-08-10
| | | | | | own struct type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78610 91177308-0d34-0410-b5e6-96231b3b80d8
* Major calling convention code refactoring.Dan Gohman2009-08-05
| | | | | | | | | | | | | | | | | | | | Instead of awkwardly encoding calling-convention information with ISD::CALL, ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering provides three virtual functions for targets to override: LowerFormalArguments, LowerCall, and LowerRet, which replace the custom lowering done on the special nodes. They provide the same information, but in a more immediately usable format. This also reworks much of the target-independent tail call logic. The decision of whether or not to perform a tail call is now cleanly split between target-independent portions, and the target dependent portion in IsEligibleForTailCallOptimization. This also synchronizes all in-tree targets, to help enable future refactoring and feature work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
* Make SINT_TO_FP/UINT_TO_FP vector legalization queries query on the Eli Friedman2009-06-06
| | | | | | | | | integer type to be consistent with normal operation legalization. No visible change because nothing is actually using this at the moment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72980 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove special cases for more opcodes.Eli Friedman2009-05-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72467 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a comment which should hopefully make the purpose of this method a Eli Friedman2009-05-24
| | | | | | | | bit clearer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72374 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new step to legalization to legalize vector math operations. This Eli Friedman2009-05-23
will allow simplifying LegalizeDAG to eliminate type legalization. (I have a patch to do that, but it's not quite finished; I'll commit it once it's finished and I've fixed any review comments for this patch.) See the comment at the beginning of lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp for more details on the motivation for this patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72325 91177308-0d34-0410-b5e6-96231b3b80d8
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