| Issue |
146871
|
| Summary |
[DAG] SDPatternMatch m_Zero/m_One/m_AllOnes have inconsistent undef handling
|
| Labels |
good first issue,
llvm:SelectionDAG
|
| Assignees |
|
| Reporter |
RKSimon
|
m_Zero/m_One uses ISD::isConstantSplatVector which allows undefs in the BUILD_VECTOR node by default
m_AllOnes uses isAllOnesOrAllOnesSplat which doesn't allow undefs in the BUILD_VECTOR node by default
All of these need to be consistent with their default and with/without undefs handling to be configurable
This needs to be handled in conjunction with #140745 which will revise m_Zero handling to be closed to m_AllOnes
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