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1902 Commits

Author SHA1 Message Date
Eddie Hung a34c5612e7 Add muxcover -mux2=cost option 2019-07-08 10:59:12 -07:00
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
Eddie Hung 6c210e5813
Merge pull request #1143 from YosysHQ/clifford/fix1135 
Add "pmux2shiftx -norange"
 2019-06-27 11:48:48 -07:00
Eddie Hung 6c256b8cda Merge origin/master 2019-06-27 11:20:15 -07:00
Bogdan Vukobratovic 0f32cb4e0a Merge remote-tracking branch 'upstream/master' 2019-06-27 12:11:47 +02:00
Clifford Wolf 7c14678ec0 Add "pmux2shiftx -norange", fixes #1135 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-06-27 10:59:12 +02:00
Clifford Wolf 69d810e4a8 Fix handling of partial covers in muxcover, fixes #1132 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-06-27 09:42:58 +02:00
Eddie Hung c226af3f56 Fix spacing 2019-06-26 20:03:34 -07:00
Eddie Hung 26efd6f0a9 Support more than one port in the abc_scc_break attr 2019-06-26 19:57:54 -07:00
Clifford Wolf 0b7d648c6a Improve opt_clean handling of unused public wires 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-06-26 17:54:17 +02:00
Clifford Wolf 8e9ef891fe Do not clean up buffer cells with "keep" attribute, closes #1128 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-06-26 11:01:03 +02:00
Eddie Hung 5db96b8aec Missing muxpack.o in Makefile 2019-06-25 10:38:42 -07:00
Eddie Hung 6f36ec8ecf Merge remote-tracking branch 'origin/master' into xaig 2019-06-25 09:33:11 -07:00
Clifford Wolf add2d415fc
Merge pull request #1130 from YosysHQ/eddie/fix710 
memory_dff: walk through more than one mux for computing read enable
 2019-06-25 17:34:44 +02:00
Eddie Hung 42720ef6fe Fix spacing 2019-06-25 08:33:17 -07:00
Eddie Hung c4e4902098 Move only one consumer check outside of while loop 2019-06-25 08:29:55 -07:00
Eddie Hung d2fed0a7f1 nullptr check 2019-06-25 06:06:32 -07:00
Eddie Hung a19226c174 Fix for abc_scc_break is bus 2019-06-24 22:16:56 -07:00
Eddie Hung 5605002d8a More meaningful error message 2019-06-24 22:12:55 -07:00
Eddie Hung babadf5938 Do not use log_id as it strips \\, also fix scc for |wire| > 1 2019-06-24 22:04:22 -07:00
Eddie Hung 49a762ba46 Fix abc9's scc breaker, also break on abc_scc_break attr 2019-06-24 21:53:18 -07:00
Eddie Hung b7deaceadd Walk through as many muxes as exist for rd_en 2019-06-24 18:33:06 -07:00
Eddie Hung 4ddc0354c1 Merge remote-tracking branch 'origin/master' into eddie/muxpack 2019-06-22 14:40:55 -07:00
Eddie Hung 1abe93e48d Merge remote-tracking branch 'origin/master' into xaig 2019-06-21 17:43:29 -07:00
Eddie Hung ad296d77ab Do not rename non LUT cells in abc9 2019-06-21 17:18:04 -07:00
Eddie Hung e01bab6c64
Merge pull request #1108 from YosysHQ/clifford/fix1091 
Add support for partial matches to muxcover
 2019-06-21 17:13:41 -07:00
Eddie Hung 545cfbbe0d Cope with $reduce_or common in case 2019-06-21 12:31:14 -07:00
Eddie Hung 15535112b7 Fix spacing 2019-06-21 11:52:51 -07:00
Eddie Hung d89d663c92 Add doc 2019-06-21 11:52:28 -07:00
Eddie Hung 641b86d25f Fix up ExclusiveDatabase with @cliffordwolf's help 2019-06-21 11:45:31 -07:00
Eddie Hung 63eb5cace9 Merge branch 'master' into eddie/muxpack 2019-06-21 11:17:19 -07:00
Clifford Wolf ec979475e7 Replace "muxcover -freedecode" with "muxcover -dmux=cost" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-06-21 19:24:41 +02:00
Eddie Hung 6d74cf0d2b
Merge pull request #1085 from YosysHQ/eddie/shregmap_improve 
Improve shregmap to handle case where first flop is common to two chains
 2019-06-21 08:56:56 -07:00
Clifford Wolf c9949dba99
Merge pull request #1117 from bwidawsk/more-home 
Add a few more filename rewrites
 2019-06-21 10:13:51 +02:00
Clifford Wolf 9286b6f013 Add "muxcover -freedecode" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-06-21 10:02:10 +02:00
Eddie Hung 54f3237720 Fix gcc warning of potentially uninitialised 2019-06-20 22:10:43 -07:00
Clifford Wolf 891ea6512e Improvements in muxcover 
- Slightly under-estimate cost of decoder muxes
- Prefer larger muxes at tree root at same cost
- Don't double-count input cost for partial muxes
- Add debug log output
 2019-06-20 19:47:59 -07:00
Clifford Wolf 40188457d1 Add support for partial matches to muxcover, fixes #1091 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-06-20 19:47:59 -07:00
Eddie Hung 0e97e6a00d Fix simple_abc9/generate test with 1'bx at MSB 2019-06-20 19:41:27 -07:00
Eddie Hung e612dade12 Merge remote-tracking branch 'origin/master' into xaig 2019-06-20 19:00:36 -07:00