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llvm-project/llvm/lib/CodeGen/SelectionDAG
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Eli Friedman c9a551ebed LangRef and basic memory-representation/reading/writing for 'cmpxchg' and 
'atomicrmw' instructions, which allow representing all the current atomic
rmw intrinsics.

The allowed operands for these instructions are heavily restricted at the
moment; we can probably loosen it a bit, but supporting general
first-class types (where it makes sense) might get a bit complicated,
given how SelectionDAG works.

As an initial cut, these operations do not support specifying an alignment,
but it would be possible to add if we think it's useful. Specifying an
alignment lower than the natural alignment would be essentially
impossible to support on anything other than x86, but specifying a greater
alignment would be possible.  I can't think of any useful optimizations which
would use that information, but maybe someone else has ideas.

Optimizer/codegen support coming soon.

llvm-svn: 136404
 		2011-07-28 21:48:00 +00:00
..
CMakeLists.txt Removed a bunch of unnecessary target_link_libraries. 2010-09-28 22:39:14 +00:00
DAGCombiner.cpp Make sure this DAGCombine actually returns an UNDEF of the correct type; PR10476. 2011-07-25 22:25:42 +00:00
FastISel.cpp Revert r135423. 2011-07-19 00:28:24 +00:00
FunctionLoweringInfo.cpp land David Blaikie's patch to de-constify Type, with a few tweaks. 2011-07-18 04:54:35 +00:00
InstrEmitter.cpp land David Blaikie's patch to de-constify Type, with a few tweaks. 2011-07-18 04:54:35 +00:00
InstrEmitter.h - Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and 2011-06-28 19:10:37 +00:00
LegalizeDAG.cpp Code generation for 'fence' instruction. 2011-07-27 22:21:52 +00:00
LegalizeFloatTypes.cpp Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ambiguity 2011-07-18 21:45:40 +00:00
LegalizeIntegerTypes.cpp CR fix: The ANY_EXTEND can be removed because the input and putput type must be 2011-07-28 14:38:46 +00:00
LegalizeTypes.cpp land David Blaikie's patch to de-constify Type, with a few tweaks. 2011-07-18 04:54:35 +00:00
LegalizeTypes.h Add an intrinsic and codegen support for fused multiply-accumulate. The intent 2011-07-08 21:39:21 +00:00
LegalizeTypesGeneric.cpp Refactor LegalizeTypes: Erase LegalizeAction and make the type legalizer use 2011-06-01 19:47:10 +00:00
LegalizeVectorOps.cpp [VECTOR-SELECT] 2011-07-14 11:11:14 +00:00
LegalizeVectorTypes.cpp Add obvious missing case to switch. PR10497. 2011-07-26 20:38:49 +00:00
Makefile make -fno-rtti the default unless a directory builds with REQUIRES_RTTI. 2010-01-24 20:43:08 +00:00
SDNodeDbgValue.h Do not lose debug info of an inlined function argument even if the argument is only used through GEPs. 2011-02-18 22:43:42 +00:00
SDNodeOrdering.h Allow 0 as an order number. Don't assign an order to formal arguments. 2009-12-22 21:35:02 +00:00
ScheduleDAGFast.cpp - Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and 2011-06-28 19:10:37 +00:00
ScheduleDAGList.cpp Various bits of framework needed for precise machine-level selection 2010-12-24 05:03:26 +00:00
ScheduleDAGRRList.cpp - Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and 2011-06-28 19:10:37 +00:00
ScheduleDAGSDNodes.cpp Rename TargetSubtarget to TargetSubtargetInfo for consistency. 2011-07-01 21:01:15 +00:00
ScheduleDAGSDNodes.h The index stored in the RegDefIter is one after the current index. When getting the index, decrement it so that it points to the current element. Fixes an off-by-one bug encountered when trying to make use of MVT::untyped. 2011-06-27 18:34:12 +00:00
SelectionDAG.cpp Code generation for 'fence' instruction. 2011-07-27 22:21:52 +00:00
SelectionDAGBuilder.cpp LangRef and basic memory-representation/reading/writing for 'cmpxchg' and 2011-07-28 21:48:00 +00:00
SelectionDAGBuilder.h LangRef and basic memory-representation/reading/writing for 'cmpxchg' and 2011-07-28 21:48:00 +00:00
SelectionDAGISel.cpp Revert r135423. 2011-07-19 00:28:24 +00:00
SelectionDAGPrinter.cpp Pass the graph to the DOTGraphTraits.getEdgeAttributes(). 2011-02-27 04:11:03 +00:00
TargetLowering.cpp land David Blaikie's patch to de-constify Type, with a few tweaks. 2011-07-18 04:54:35 +00:00
TargetSelectionDAGInfo.cpp Implement a bunch more TargetSelectionDAGInfo infrastructure. 2010-05-11 17:31:57 +00:00