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1940 Commits

Author SHA1 Message Date
Eddie Hung 5939b5d636
Merge pull request #1188 from YosysHQ/eddie/abc9_push_inverters 
abc9: push inverters driving box inputs (comb outputs) through $lut soft logic
 2019-07-16 08:53:47 -07:00
Eddie Hung ba8ccbdea8
Merge pull request #1186 from YosysHQ/eddie/abc9_ice40_fix 
abc9/ice40: encapsulate SB_CARRY+SB_LUT4 into one box
 2019-07-16 08:52:14 -07:00
Miodrag Milanovic 2b469e82a7 Fix check logic in extract_fa 2019-07-16 10:35:18 +02:00
Clifford Wolf 2a7198db51
Merge pull request #1189 from YosysHQ/eddie/fix1151 
Error out if enable > dbits in memory_bram file
 2019-07-15 20:06:35 +02:00
Clifford Wolf 2c5c53e4c1
Merge pull request #1190 from YosysHQ/eddie/fix_1099 
extract_fa to return nothing more gracefully
 2019-07-15 20:05:56 +02:00
whitequark 2de7e92bb8 opt_lut: make less chatty. 2019-07-13 16:49:56 +00:00
Eddie Hung 9b91d815b5 If ConstEval fails do not log_abort() but return gracefully 2019-07-13 04:13:57 -07:00
Eddie Hung ab3917d079 Error out if enable > dbits 2019-07-13 03:39:23 -07:00
Eddie Hung fb062c3426 Add comment 2019-07-13 00:52:21 -07:00
Eddie Hung e9bdc86c0e duplicate -> clone 2019-07-12 19:33:02 -07:00
Eddie Hung be0cb7f4b8 More cleanup 2019-07-12 19:30:18 -07:00
Eddie Hung 7d583f9e57 Cleanup 2019-07-12 19:30:18 -07:00
Eddie Hung 83f23a24a8 Cleanup 2019-07-12 19:30:18 -07:00
Eddie Hung 1adbfb5533 Cleanup 2019-07-12 19:30:18 -07:00
Eddie Hung 39a7c7c54c More cleanup 2019-07-12 19:30:18 -07:00
Eddie Hung 91c07be196 Cleanup 2019-07-12 19:30:18 -07:00
Eddie Hung 399e1ec870 Cleanup 2019-07-12 19:30:18 -07:00
Eddie Hung 58dbb28fd3 Cleanup 2019-07-12 19:30:18 -07:00
Eddie Hung 7dc15bdd2d Do not double count cells in abc 2019-07-12 08:22:26 -07:00
Eddie Hung c0abd18799 Enable &mfs for abc9, even if it only currently works for ice40 2019-07-11 08:49:06 -07:00
Clifford Wolf fd3d5cefad
Merge pull request #1179 from whitequark/attrmap-proc 
attrmap: also consider process, switch and case attributes
 2019-07-11 07:23:28 +02:00
whitequark ea447220da attrmap: also consider process, switch and case attributes. 2019-07-10 12:30:53 +00:00
Clifford Wolf c66b4b9131
Merge pull request #1177 from YosysHQ/clifford/async 
Fix clk2fflogic adff reset semantic to negative hold time on reset
 2019-07-10 08:48:20 +02:00
Clifford Wolf cae26bf330
Merge pull request #1174 from YosysHQ/eddie/fix1173 
Increment _TECHMAP_BITS_CONNMAP_ by one since counting from zero
 2019-07-09 22:59:51 +02:00
Clifford Wolf 9546ccdbd3 Fix tests/various/async FFL test 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-07-09 22:44:39 +02:00
Eddie Hung c2db70f41e Increment _TECHMAP_BITS_CONNMAP_ by one since counting from zero 2019-07-09 12:14:00 -07:00
Eddie Hung 713337255e
Revert "Add "synth -keepdc" option" 2019-07-09 10:14:23 -07:00
Clifford Wolf e95ce1f7af
Merge pull request #1168 from whitequark/bugpoint-processes 
Add support for processes in bugpoint
 2019-07-09 16:59:43 +02:00
Clifford Wolf a0787c12f0
Merge pull request #1169 from whitequark/more-proc-cleanups 
A new proc_prune pass
 2019-07-09 16:59:18 +02:00
Clifford Wolf 38e942507e
Merge pull request #1163 from whitequark/more-case-attrs 
More support for case rule attributes
 2019-07-09 16:57:16 +02:00
whitequark 44bcb7a187 proc_prune: promote assigns to module connections when legal. 
This can pave the way for further transformations by exposing
identities that were previously hidden in a process to any pass that
uses SigMap. Indeed, this commit removes some ad-hoc logic from
proc_init that appears to have been tailored to the output of
genrtlil in favor of using `SigMap.apply()`. (This removal is not
optional, as the ad-hoc logic cannot cope with the result of running
proc_prune; a similar issue was fixed in proc_arst.)
 2019-07-09 09:30:58 +00:00
whitequark 5fe0ffe30f proc_prune: new pass. 
The proc_prune pass is similar in nature to proc_rmdead pass: while
proc_rmdead removes branches that never become active because another
branch preempts it, proc_prune removes assignments that never become
active because another assignment preempts them.

Genrtlil contains logic similar to the proc_prune pass, but their
purpose is different: genrtlil has to prune assignments to adapt
the semantics of blocking assignments in HDLs (latest assignment
wins) to semantics of assignments in RTLIL processes (assignment in
the most specific case wins). On the other hand proc_prune is
a general purpose RTLIL simplification that benefits all frontends,
even those not using the Yosys AST library.

The proc_prune pass is added to the proc script after proc_rmdead,
since it gives better results with fewer branches.
 2019-07-09 09:30:58 +00:00
whitequark f2fb958d44 bugpoint: add -assigns and -updates options. 2019-07-09 09:27:43 +00:00
whitequark f7a14a5678 proc_clean: add -quiet option. 
This is useful for other passes that call it often, like bugpoint.
 2019-07-09 09:27:43 +00:00
Eddie Hung 37b58f4324 Clarify 'wreduce -keepdc' doc 2019-07-08 19:15:07 -07:00
Eddie Hung b5072256f2 Update muxcover doc as per @ZirconiumX 2019-07-08 12:50:59 -07:00
Eddie Hung 3681162c8d atoi -> stoi 2019-07-08 11:00:06 -07:00
Eddie Hung a34c5612e7 Add muxcover -mux2=cost option 2019-07-08 10:59:12 -07:00
whitequark 48655dfb8b proc_mux: consider \src attribute on CaseRule. 2019-07-08 13:18:18 +00:00
David Shah d45936fe5f memory_dff: Fix checking of feedback mux input when more than one mux 
Signed-off-by: David Shah <dave@ds0.me>
 2019-07-02 13:35:50 +01:00
Gabriel L. Somlo 8cb3655ecd Make abc9 pass aware of optional ABCEXTERNAL override 
Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
 2019-06-28 14:56:16 -04:00
Eddie Hung 4a2a93aa06 Fix spacing 2019-06-28 11:10:36 -07:00
Eddie Hung da5f830395
Merge pull request #1098 from YosysHQ/xaig 
"abc9" pass for timing-aware techmapping (experimental, FPGA only, no FFs)
 2019-06-28 10:59:03 -07:00
Clifford Wolf 1c7ce251f3
Merge pull request #1046 from bogdanvuk/master 
Optimizing DFFs whose initial value prevents their value from changing
 2019-06-28 08:30:18 +02:00
Eddie Hung a625854ac5 Do not use Module::remove() iterator version 2019-06-27 15:29:20 -07:00
Eddie Hung 137c91d9a9 Remove &retime when abc9 -fast 2019-06-27 15:17:39 -07:00
Eddie Hung 6bf73e3546 Cleanup abc9.cc 2019-06-27 15:15:56 -07:00
Bogdan Vukobratovic 3225bfb984 Add help for "-sat" option inside opt_rmdff. "opt" can pass "-sat" too 2019-06-27 22:06:23 +02:00
Bogdan Vukobratovic 35fa7b3057 Fix memory leak when one of multiple DFF cells is removed in opt_rmdff 
When there are multiple DFFs and one of them is removed, its reference lingers
inside bit2driver dict. While invoking handle_dff() function for other DFFs,
this broken reference is used isnside sat_import_cell() function.
 2019-06-27 22:02:12 +02:00
Eddie Hung 440f173aef Merge remote-tracking branch 'origin/master' into xaig 2019-06-27 11:54:34 -07:00