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[DAG] SelectionDAG::canCreateUndefOrPoison - add TRUNCATE_SAT handling + tests #152143

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[DAG] SelectionDAG::canCreateUndefOrPoison - add TRUNCATE_SAT handling + tests#152143
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#168809
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rhyadav
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good first issuehttps://github.com/llvm/llvm-project/contributellvm:SelectionDAGSelectionDAGISel as well
@RKSimon

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@RKSimon
RKSimon
opened on Aug 5, 2025

Add ISD::TRUNCATE_SSAT_S/TRUNCATE_SSAT_U/TRUNCATE_USAT_U to SelectionDAG::canCreateUndefOrPoison along with suitable test coverage

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good first issuehttps://github.com/llvm/llvm-project/contributellvm:SelectionDAGSelectionDAGISel as well

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