| Issue |
161642
|
| Summary |
[DAG] Add computeKnownBits(FREEZE(X)) handling
|
| Labels |
good first issue,
llvm:SelectionDAG
|
| Assignees |
|
| Reporter |
RKSimon
|
Similar to #161507 - add FREEZE handling to allow us to analyze demanded elements of a node through a FREEZE
The tricky bit will be to add test coverage - you will need a FREEZE node that can't be removed due to some elements possibly being undef/poison, but other elements that are not and have useful known bits data for a dependent node.
This might be easier once #161512 has landed.
![]()
_______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
