[Synth] Add MaximumAndCover Pass #9090
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This implementation is based on a tree-balancing algorithm described in this paper: "https://ieeexplore.ieee.org/abstract/document/6105357". Rebased from #8262. Co-authored-by: Max Zhou <[email protected]>
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This is reviewed in #8262 so I'm going to merge. |
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This implementation is based on a tree-balancing algorithm described in section 3.1 in the paper: "Delay Optimization Using SOP Balancing, ICCAD 2011".
This pass performs maximum AND-cover optimization by collapsing single-fanout and-inverter ops into their users, reducing the depth of And-Inverter Graphs, combined with the lower variadic pass. The pass is integrated into the circt-synth optimization pipeline.
Rebased from #8262.
Co-authored-by: Max Zhou [email protected]