| Issue |
174370
|
| Summary |
[DAG][GISel] computeKnownBits - add CTLS handling
|
| Labels |
good first issue,
llvm:globalisel,
llvm:SelectionDAG
|
| Assignees |
|
| Reporter |
RKSimon
|
This will be similar to ISD::CTLZ handling except its in terms of the source operand's ComputeNumSignBits count (which we will have to assume is the minimum number of sign bits).
Test coverage probably best covered in ARM/AARCH64/RISCV targets which actually have CTS instruction support
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