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* opt_expr: refactor simplification of signed X>=0 and X<0. NFCI.whitequark2019-01-021-24/+26
* opt_expr: simplify any unsigned comparisons with all-0 and all-1.whitequark2019-01-021-17/+69
* opt_lut: eliminate LUTs evaluating to constants or inputs.whitequark2018-12-311-0/+81
* Fix handling of (* keep *) wires in wreduceClifford Wolf2018-12-311-1/+4
* Merge pull request #720 from whitequark/masterClifford Wolf2018-12-161-1/+1
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| * opt_lut: simplify type conversion. NFC.whitequark2018-12-051-1/+1
* | opt_lut: leave intact LUTs with cascade feeding module outputs.whitequark2018-12-071-0/+6
* | opt_lut: show original truth table for both cells.whitequark2018-12-071-2/+3
* | opt_lut: add -limit option, for debugging misoptimizations.whitequark2018-12-071-3/+21
* | Bugfix in opt_expr handling of a<0 and a>=0Clifford Wolf2018-12-061-1/+1
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* Rename opt_lut.cpp to opt_lut.ccClifford Wolf2018-12-051-0/+0
* opt_lut: add -dlogic, to avoid disturbing logic such as carry chains.whitequark2018-12-051-17/+163
* opt_lut: always prefer to eliminate 1-LUTs.whitequark2018-12-051-19/+41
* opt_lut: collect and display statistics.whitequark2018-12-051-4/+33
* opt_lut: refactor to use a worker. NFC.whitequark2018-12-051-170/+177
* opt_lut: new pass, to combine LUTs for tighter packing.whitequark2018-12-052-0/+275
* Add iteration limit to "opt_muxtree"Clifford Wolf2018-11-201-1/+17
* Consistent use of 'override' for virtual methods in derived classes.Henner Zeller2018-07-2011-24/+24
* Add optimization of tristate buffer with constant control inputClifford Wolf2018-05-121-0/+17
* Fix opt_rmdff handling of $dlatchsrClifford Wolf2018-02-261-0/+3
* Add $allconst and $allseq cell typesClifford Wolf2018-02-231-0/+2
* Add warnings for driver-driver conflicts between FFs (and other cells) and co...Clifford Wolf2017-12-121-1/+8
* Fix memory corruption bug in opt_rmdffClifford Wolf2017-10-261-0/+3
* Fix typo in opt_clean log messageClifford Wolf2017-10-261-1/+1
* Revert 90be0d8 as it causes endless loops for some designsClifford Wolf2017-10-141-1/+0
* Fix input vector for reduce cells.Kaj Tuomi2017-10-121-0/+1
* Minor changes to opt_demorgan requested during code reviewAndrew Zonenberg2017-09-142-18/+18
* Initial version of opt_demorgan is functioning for AND/OR gates. Not the pret...Andrew Zonenberg2017-09-122-0/+203
* Don't track , ... contradictions through x/z-bitsClifford Wolf2017-08-251-1/+4
* Add removing of redundant pairs of bits in ==, ===, !=, and !== to opt_exprClifford Wolf2017-08-251-0/+72
* Mostly coding style related fixes in rmports passClifford Wolf2017-08-151-30/+33
* rmports: Now remove ports from cell instances if we optimized them out of tha...Andrew Zonenberg2017-08-141-2/+35
* ProcessModule is no longer virtual (why was it in the first place?)Andrew Zonenberg2017-08-141-1/+1
* rmports now works on all modules in the design, not just the top.Andrew Zonenberg2017-08-141-4/+7
* Updated Makefile to reflect opt_rmports being renamed to rmportsAndrew Zonenberg2017-08-141-1/+1
* Renamed opt_rmports pass to rmportsAndrew Zonenberg2017-08-141-5/+5
* Improved handling of constant connections in opt_rmportsAndrew Zonenberg2017-08-141-0/+2
* Fixed handling of cell ports that aren't wiresAndrew Zonenberg2017-08-141-0/+3
* opt_rmports: Fixed incorrect handling of multi-bit netsAndrew Zonenberg2017-08-141-12/+27
* Removed commented out debug codeAndrew Zonenberg2017-08-141-4/+0
* Added opt_rmports pass (remove unconnected ports from top-level modules)Andrew Zonenberg2017-08-142-0/+133
* Add support for set-reset cell variants to opt_rmdffClifford Wolf2017-08-091-0/+182
* Add handling of constant reset signals to opt_rmdffClifford Wolf2017-08-061-1/+23
* Add consolidation of init attributes to opt_clean, some opt_clean log fixesClifford Wolf2017-07-291-6/+82
* Add "opt_expr -fine" feature to remove neutral bits from reduce and logic ope...Clifford Wolf2017-07-261-0/+47
* Excluded $_TBUF_ from opt_merge passSalvador E. Tropea2017-07-031-0/+1
* Fix and_or_buffer optimization in opt_expr for signed operatorsClifford Wolf2017-07-011-2/+2
* Add $tribuf to opt_merge blacklistClifford Wolf2017-06-301-0/+1
* Squelch trailing whitespaceLarry Doolittle2017-04-121-3/+3
* Disable opt_merge for $anyseq and $anyconstClifford Wolf2017-02-281-0/+3