[Synth] [FunctionalReduction] Add conflict limit option, and add to circt-synth#10073
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[Synth] [FunctionalReduction] Add conflict limit option, and add to circt-synth#10073
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FunctionalReduction depends on an incremental SAT backend, so keep it\nout of the default circt-synth optimization pipeline unless the user\npasses --enable-functional-reduction.\n\nExpose a shared SAT-solver availability query, use it to guard pipeline\nconstruction, and add an integration test that covers both the default\ndisabled behavior and the opt-in Z3-backed path.
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fabianschuiki
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Really nice! LGTM 🥳
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| if (!options.disableFunctionalReduction && hasIncrementalSATSolverBackend()) | ||
| pm.addPass(createFunctionalReduction()); |
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…irct-synth (llvm#10073) Make FunctionalReduction opt-in in circt-synth and add conflict-limit support for the CaDiCaL backend. This change keeps FunctionalReduction out of the default synth optimization pipeline unless explicitly enabled, since it depends on an incremental SAT backend. It also adds a per-solve conflict limit to the shared SAT solver interface, wires that through the CaDiCaL implementation, and exposes the limit on the synth-functional-reduction pass.
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Make FunctionalReduction opt-in in circt-synth and add conflict-limit support for the CaDiCaL backend.
This change keeps FunctionalReduction out of the default synth optimization pipeline unless explicitly enabled, since it depends on an incremental SAT backend. It also adds a per-solve conflict limit to the shared SAT solver interface, wires that through the CaDiCaL implementation, and exposes the limit on the synth-functional-reduction pass.