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* Fixed ice40_opt lut unmapping, added "ice40_opt -unlut"Clifford Wolf2016-05-061-3/+15
* Added "yosys -D" featureClifford Wolf2016-04-211-4/+4
* Renamed opt_share to opt_mergeClifford Wolf2016-03-311-2/+2
* Renamed opt_const to opt_exprClifford Wolf2016-03-311-4/+4
* Improvements in ice40_optClifford Wolf2015-12-221-5/+16
* Fixed trailing whitespacesClifford Wolf2015-07-021-3/+3
* ice40_opt bugfixClifford Wolf2015-04-271-4/+2
* iCE40: SB_CARRY const fold -> unmap SB_LUTClifford Wolf2015-04-271-3/+44
* Added iCE40 const folding support for SB_CARRYClifford Wolf2015-04-271-0/+131