| Issue |
137943
|
| Summary |
[DAG] Replace/Wrap SelectionDAG::isKnownNeverNaN with SelectionDAG::computeKnownFPClass
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
RKSimon
|
SelectionDAG is missing an equivalent to ValueTrackings's computeKnownFPClass, instead only having a basic implementation for isKnownNeverNaN.
We should create a full SelectionDAG::computeKnownFPClass implementation and then wrap inf/nan/signbit checks around it like ValueTracking does: https://github.com/llvm/llvm-project/blob/04aa5a88d17f5c1cab7acde2e87de05a405e60f1/llvm/lib/Analysis/ValueTracking.cpp#L6306-L6348
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