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* Merge pull request #818 from YosysHQ/clifford/dffsrfixClifford Wolf2019-02-211-6/+7
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| * Fix opt_rmdff handling of $_DFFSR_???_ and $_DLATCHSR_???_, fixes #816Clifford Wolf2019-02-211-6/+7
* | Add FF support to wreduceClifford Wolf2019-02-201-1/+70
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* Bugfix in $memrd sharingClifford Wolf2019-01-071-2/+6
* Merge pull request #775 from whitequark/opt_flowmapClifford Wolf2019-01-031-1/+1
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| * flowmap: new techmap pass.whitequark2019-01-031-1/+1
* | Merge pull request #770 from whitequark/opt_expr_cmpClifford Wolf2019-01-021-97/+134
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| * opt_expr: improve simplification of comparisons with large constants.whitequark2019-01-021-70/+47
| * opt_expr: refactor simplification of unsigned X<onehot and X>=onehot. NFCI.whitequark2019-01-021-31/+37
| * 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
* | Merge pull request #773 from whitequark/opt_lut_elim_fixesClifford Wolf2019-01-021-8/+31
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| * | opt_lut: reflect changes in sigmap.whitequark2019-01-021-0/+2
| * | opt_lut: use a worklist, and revisit cells affected by elimination.whitequark2019-01-021-3/+10
| * | opt_lut: count eliminated cells, and set opt.did_something for them.whitequark2019-01-021-6/+20
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* / Fix typographical and grammatical errors and inconsistencies.whitequark2019-01-022-2/+2
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* 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