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llvm/lib/CodeGen/SelectionDAG
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Daniel Sanders f89ddfccc0 Add support for legalizing SETNE/SETEQ by inverting the condition code and the result of the comparison. 
Summary:
LegalizeSetCCCondCode can now legalize SETEQ and SETNE by returning the inverse
condition and requesting that the caller invert the result of the condition.

The caller of LegalizeSetCCCondCode must handle the inverted CC, and they do
so as follows:
  SETCC, BR_CC:
    Invert the result of the SETCC with SelectionDAG::getNOT()
  SELECT_CC:
    Swap the true/false operands.

This is necessary for MSA which lacks an integer SETNE instruction.

Reviewers: resistor

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2229

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195355 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-21 13:24:49 +00:00
..
CMakeLists.txt
DAGCombiner.cpp DAGCombiner: Partially revert r192795, getNOT was fixed not to create illegal constants. 2013-11-17 10:40:03 +00:00
FastISel.cpp Avoid illegal integer promotion in fastisel 2013-11-15 19:09:27 +00:00
FunctionLoweringInfo.cpp
InstrEmitter.cpp Fix patchpoint comments. 2013-11-19 05:05:43 +00:00
InstrEmitter.h
LegalizeDAG.cpp Add support for legalizing SETNE/SETEQ by inverting the condition code and the result of the comparison. 2013-11-21 13:24:49 +00:00
LegalizeFloatTypes.cpp Keep TBAA info when rewriting SelectionDAG loads and stores 2013-10-28 11:17:59 +00:00
LegalizeIntegerTypes.cpp Keep TBAA info when rewriting SelectionDAG loads and stores 2013-10-28 11:17:59 +00:00
LegalizeTypes.cpp [DAG] Refactor vector splitting code in SelectionDAG. No functional change intended. 2013-11-19 21:20:17 +00:00
LegalizeTypes.h [DAG] Refactor vector splitting code in SelectionDAG. No functional change intended. 2013-11-19 21:20:17 +00:00
LegalizeTypesGeneric.cpp [DAG] Refactor vector splitting code in SelectionDAG. No functional change intended. 2013-11-19 21:20:17 +00:00
LegalizeVectorOps.cpp Keep TBAA info when rewriting SelectionDAG loads and stores 2013-10-28 11:17:59 +00:00
LegalizeVectorTypes.cpp [DAG] Refactor vector splitting code in SelectionDAG. No functional change intended. 2013-11-19 21:20:17 +00:00
LLVMBuild.txt
Makefile
ResourcePriorityQueue.cpp
ScheduleDAGFast.cpp
ScheduleDAGRRList.cpp
ScheduleDAGSDNodes.cpp
ScheduleDAGSDNodes.h
ScheduleDAGVLIW.cpp
SDNodeDbgValue.h
SelectionDAG.cpp [DAG] Refactor vector splitting code in SelectionDAG. No functional change intended. 2013-11-19 21:20:17 +00:00
SelectionDAGBuilder.cpp Fix codegen for null different sized pointer. 2013-11-16 20:24:41 +00:00
SelectionDAGBuilder.h Add addrspacecast instruction. 2013-11-15 01:34:59 +00:00
SelectionDAGDumper.cpp Add addrspacecast instruction. 2013-11-15 01:34:59 +00:00
SelectionDAGISel.cpp Revert r195317 (and r195333), "Teach ISel not to optimize 'optnone' functions." 2013-11-21 10:55:15 +00:00
SelectionDAGPrinter.cpp
TargetLowering.cpp Lower stackmap intrinsics directly to their target opcode in the DAG builder. 2013-10-31 17:18:24 +00:00
TargetSelectionDAGInfo.cpp