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[Comb] Add canonicalization for comb.truth_table #9214

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[Comb] Add canonicalization for comb.truth_table #9214

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@MrRoy09 MrRoy09 commented Nov 8, 2025

Adds canonicalization patterns and tests for comb.truth_table:

  • Folds truth tables with constant output (all true or all false entries) into hw.constant
  • Simplifies truth tables that depend on a single input to the corresponding input value
  • Adds tests verifying canonicalization behavior for comb.truth_table

Closes #8925

@MrRoy09 MrRoy09 requested a review from darthscsi as a code owner November 8, 2025 14:38
@MrRoy09 MrRoy09 force-pushed the comb/canonicalize-truth-table branch from bacdbbc to 5ff85a1 Compare November 9, 2025 18:57
@MrRoy09 MrRoy09 force-pushed the comb/canonicalize-truth-table branch from 5ff85a1 to 0091687 Compare November 9, 2025 18:59
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[Comb] Fold comb.truth_table when truth table depends on a single operand

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@MrRoy09