mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-04-23 17:15:33 +00:00
Code Activity

opt_share: Fix input confusion with ANDNOT, ORNOT gates

Browse source 
Distinguish between the A, B input ports of `$_ANDNOT_`, `$_ORNOT_`
gates when considering those for sharing. Unlike the input ports of the
other supported single-bit gates, those are not interchangeable.

Fixes #3848.
This commit is contained in:
Martin Povišer 2023-07-19 20:08:22 +02:00 • committed by Lofty
parent 83c9261d6c
commit f0ae046c5a
2 changed files with 31 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
passes/opt/opt_share.cc
View file

@ -131,6 +131,9 @@ RTLIL::IdString decode_port_semantics(RTLIL::Cell *cell, RTLIL::IdString port_na
if (cell->type.in(ID($lt), ID($le), ID($ge), ID($gt), ID($div), ID($mod), ID($divfloor), ID($modfloor), ID($concat), SHIFT_OPS) && port_name == ID::B)
return port_name;
if (cell->type.in(ID($_ANDNOT_), ID($_ORNOT_)))
return port_name;
return "";
}