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* Refactor "opt_rmdff -sat"Clifford Wolf2019-06-202-14/+12
* Optimizing DFFs whose initial value prevents their value from changingBogdan Vukobratovic2019-05-282-0/+19
* Fix WREDUCE on FF not fixing ARST_VALUE parameter.Keith Rothman2019-02-222-0/+24
* opt_expr: improve simplification of comparisons with large constants.whitequark2019-01-021-0/+18
* opt_expr: refactor simplification of unsigned X<onehot and X>=onehot. NFCI.whitequark2019-01-021-0/+5
* opt_expr: refactor simplification of signed X>=0 and X<0. NFCI.whitequark2019-01-021-8/+14
* opt_expr: simplify any unsigned comparisons with all-0 and all-1.whitequark2019-01-022-0/+15
* opt_lut: eliminate LUTs evaluating to constants or inputs.whitequark2018-12-313-0/+23
* Merge pull request #724 from whitequark/equiv_optClifford Wolf2018-12-162-15/+1
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| * equiv_opt: pass -D EQUIV when techmapping.whitequark2018-12-072-4/+1
| * equiv_opt: new command, for verifying optimization passes.whitequark2018-12-071-12/+1
* | opt_lut: leave intact LUTs with cascade feeding module outputs.whitequark2018-12-072-0/+20
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* opt_lut: add -dlogic, to avoid disturbing logic such as carry chains.whitequark2018-12-051-1/+1
* opt_lut: new pass, to combine LUTs for tighter packing.whitequark2018-12-055-0/+43