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d462ba8539
CTTZ and CTPOP. The expansion code differs from that in LegalizeDAG in that it chooses to take the CTLZ/CTTZ count from the Hi/Lo part depending on whether the Hi/Lo value is zero, not on whether CTLZ/CTTZ of Hi/Lo returned 32 (or whatever the width of the type is) for it. I made this change because the optimizers may well know that Hi/Lo is zero and exploit it. The promotion code for CTTZ also differs from that in LegalizeDAG: it uses an "or" to get the right result when the original value is zero, rather than using a compare and select. This also means the value doesn't need to be zero extended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47075 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| .. | ||
| CallingConvLower.cpp | ||
| DAGCombiner.cpp | ||
| LegalizeDAG.cpp | ||
| LegalizeTypes.cpp | ||
| LegalizeTypes.h | ||
| LegalizeTypesExpand.cpp | ||
| LegalizeTypesPromote.cpp | ||
| LegalizeTypesScalarize.cpp | ||
| LegalizeTypesSplit.cpp | ||
| Makefile | ||
| ScheduleDAG.cpp | ||
| ScheduleDAGList.cpp | ||
| ScheduleDAGRRList.cpp | ||
| SelectionDAG.cpp | ||
| SelectionDAGISel.cpp | ||
| SelectionDAGPrinter.cpp | ||
| TargetLowering.cpp | ||