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Code Activity
14315 commits 94 branches 53 tags 44 MiB
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4170 commits

Author SHA1 Message Date
Marcelina Kościelnicka
336b8c7786 dffinit: Refactor to use FfInitVals. 2020-07-24 11:22:31 +02:00
Marcelina Kościelnicka
1c8483b7dd zinit: Refactor to use FfInitVals. 2020-07-24 11:22:31 +02:00
Marcelina Kościelnicka
e98382f6e2 dfflegalize: Refactor to use FfInitVals. 2020-07-24 11:22:31 +02:00
Marcelina Kościelnicka
abe4e9e607 clk2fflogic: Support all FF types. 2020-07-24 03:19:48 +02:00
Marcelina Kościelnicka
eae2edf3e4 memory_dff: recognize more dff cells 2020-07-23 20:55:28 +02:00
Marcelina Kościelnicka
dc07ae9677 techmap: Add _TECHMAP_CELLNAME_ special parameter. 
This parameter will resolve to the name of the cell being mapped.  The
first user of this parameter will be synth_intel_alm's Quartus output,
which requires a unique (and preferably descriptive) name passed as
a cell parameter for the memory cells.
 2020-07-21 15:00:54 +02:00
Alberto Gonzalez
2f786fcfac
qbfsat: Add -solver-option option. 2020-07-20 21:54:56 +00:00
Marcelina Kościelnicka
61a7ec4768 opt_merge: Dedup one more use of FF cell type list. 2020-07-15 06:19:18 +02:00
Marcelina Kościelnicka
b33744b03a proc_dlatch: Remove init values for combinatorial processes. 
Fixes #2258.
 2020-07-12 18:50:30 +02:00
Marcelina Kościelnicka
240351c44e dfflegalize: Gather init values from all wires. 
Skipping non-selected wires is unsound in an obvious way.
 2020-07-12 17:39:13 +02:00
Marcelina Kościelnicka
7ed9d18907 dfflibmap: Refactor to use dfflegalize internally. 2020-07-09 18:51:03 +02:00
Marcelina Kościelnicka
32d2cc8c28 clkbufmap: improve input pad handling. 
- allow inserting only the input pad cell
- do not insert the usual buffer if the input pad already acts as a
  buffer
 2020-07-09 18:48:01 +02:00
Marcelina Kościelnicka
03e28f7ab4 clk2fflogic: Consistently treat async control signals as negative hold. 
This fixes some dfflegalize equivalence checks, and breaks others — and
I strongly suspect the others are due to bad support for multiple
async inputs in `proc` (in particular, lack of proper support for
dlatchsr and sketchy circuits on dffsr control inputs).
 2020-07-09 18:12:47 +02:00
Marcelina Kościelnicka
e9c2c1b717 dfflegalize: Add special support for const-D latches. 
Those can be created by `opt_dff` when optimizing `$adff` with const
clock, or with D == Q.  Make dfflegalize do the opposite transform
when such dlatches would be otherwise unimplementable.
 2020-07-09 18:11:32 +02:00
Marcelina Kościelnicka
943147b768 dfflegalize: typo fix 2020-07-07 15:00:52 +02:00
Marcelina Kościelnicka
af54b8bc61 Naming fixes. 2020-07-05 22:21:59 +02:00
Marcelina Kościelnicka
f3f55ae7c2 dfflegalize: Prefer mapping dff to sdff before adff 
This ensures that, when both sync and async FFs are available and abc9
is involved, the sync FFs will be used, and will thus remain available
for sequential synthesis.
 2020-07-05 12:01:43 +02:00
Marcelina Kościelnicka
7afcb72c98 opt_expr: Fix crash on $mul optimization with more zeros removed than Y has. 
Fixes #2221.
 2020-07-05 06:31:58 +02:00
Eddie Hung
27a9d1b6e6 abc9: only techmap (* abc9_flop *) modules 2020-07-04 19:45:10 +02:00
Eddie Hung
0ba79feb6f abc9: techmap from user design to allow abc9_flop modules to be composed 
from other primitives
 2020-07-04 19:45:10 +02:00
Rupert Swarbrick
a9b61080a4 Add newlines to help text for dfflegalize 
I think these were probably missed by accident. Spotted because GCC
spits out lots of messages like this:

passes/techmap/dfflegalize.cc:114:7: warning: zero-length gnu_printf format string [-Wformat-zero-length]
  114 |   log("");
      |       ^~

(because we tell GCC that the first argument to log() looks like a
printf control string in log.h, and a zero length such string triggers
a warning).
 2020-07-03 12:30:12 +02:00
clairexen
e4b9e64d1b
Merge pull request #2208 from boqwxp/qbfsat-cleanup 
qbfsat: Cleanup and refactoring
 2020-07-02 17:48:37 +02:00
clairexen
5428666151
Merge pull request #2186 from YosysHQ/mwk/dfflegalize 
Add dfflegalize pass.
 2020-07-02 17:46:11 +02:00
clairexen
d3422f8a5e
Merge pull request #2211 from YosysHQ/mwk/fix-fmcombine-ff 
fmcombine: use the master ff cell type list
 2020-07-02 17:43:48 +02:00
clairexen
5dbf91847a
Merge pull request #2210 from YosysHQ/mwk/fix-opt_merge 
opt_merge: use the master FF type list
 2020-07-02 17:43:34 +02:00
Alberto Gonzalez
56f98b9e3d
qbfsat: Remove useless comment and #ifndef guards. 2020-07-01 19:55:16 +00:00
Alberto Gonzalez
3345d39e6f
qbfsat: Specify default values for some options in the help message. 2020-07-01 19:55:16 +00:00
Alberto Gonzalez
95e8016811
qbfsat: Clean up external executable command lines and update temporary directory name. 2020-07-01 19:55:16 +00:00
Alberto Gonzalez
8cd60be654
qbfsat: Clean up and refactor data structures into qbfsat.h. 2020-07-01 19:55:16 +00:00
Alberto Gonzalez
bbfa2d65fa
glift: Use ID() rather than string literals. 2020-07-01 19:51:48 +00:00
Alberto Gonzalez
eda1af73c4
glift: Use worker pattern. 2020-07-01 19:51:47 +00:00
Alberto Gonzalez
3eb2593876
glift: Add support for $_NAND_ and $_NOR_ cells. 2020-07-01 19:51:47 +00:00
Alberto Gonzalez
8cb1a86c23
glift: Add support for $_MUX_ and $_NMUX_ cells. 2020-07-01 19:51:47 +00:00
Alberto Gonzalez
23defc6fe9
glift: Add support for $_XOR_ and $_XNOR_ cells. 2020-07-01 19:51:47 +00:00
Alberto Gonzalez
209a123b97
glift: Add initial hierarchy support. 2020-07-01 19:51:47 +00:00
Alberto Gonzalez
20ad371724
glift: Replace YS_OVERRIDE with override. 2020-07-01 19:51:47 +00:00
Alberto Gonzalez
91c20fca72
glift: Add -simple-cost-model option 
Rather than assigning specific weights to specific versions of taint tracking logic and summing the weights of all GLIFT cells, sum the following values for each GLIFT cell:
  - 0 if the associated hole/$anyconst cell value is non-zero, i.e. reduced-precision taint tracking logic is chosen at this cell
  - 1 if the associated hole/$anyconst cell value is zero, i.e. the full-precision taint tracking logic is chosen at this cell

This simplified cost modeling reduces the potential for the QBF-SAT solver to minimize taint tracking logic area but significantly simplifies the QBF-SAT problem.
 2020-07-01 19:51:47 +00:00
Alberto Gonzalez
26bd686259
glift: Add -instrument-more option to add 4 more versions of taint tracking logic. Also refactor a bit and update help text. 2020-07-01 19:51:46 +00:00
Alberto Gonzalez
bc207d5426
glift: Change command names to better represent their functions. 2020-07-01 19:51:46 +00:00
Alberto Gonzalez
ddfb9f08e2
glift: Add -create-imprecise command, rename other commands, and re-work the help text. 2020-07-01 19:51:46 +00:00
Alberto Gonzalez
72cebef279
glift: Add replacement scoring and area minimization option. 2020-07-01 19:51:46 +00:00
Alberto Gonzalez
c36440a7ee
glift: Remove outputs by default; add -keep-outputs option; properly reset internal state between calls. 2020-07-01 19:51:46 +00:00
Alberto Gonzalez
19dafcd4f1
glift: Initial implementation of the -sketchify option. 2020-07-01 19:51:46 +00:00
Alberto Gonzalez
09848b3b9f
glift: Initial implementation of GLIFT model construction. 2020-07-01 19:51:45 +00:00
Alberto Gonzalez
5f45fe51ea
glift: Add skeleton for glift command. 2020-07-01 19:51:45 +00:00
clairexen
b1707407a0
Merge pull request #2138 from boqwxp/qbfsat-oflag 
qbfsat: Add `-O[012]` options to control pre-solving simplification with ABC
 2020-07-01 16:35:27 +02:00
clairexen
2b0f6e24e2
Merge pull request #2206 from boqwxp/qbfsat-fix-name-specialization 
qbfsat: Fix name-based hole specialization
 2020-07-01 16:34:32 +02:00
Marcelina Kościelnicka
e3564b4502 Add dfflegalize pass. 2020-07-01 01:57:15 +02:00
Marcelina Kościelnicka
7c91f13f51 fmcombine: use the master ff cell type list 2020-06-30 21:07:17 +02:00
Marcelina Kościelnicka
77b15dd8e9 opt_merge: use the master FF type list 2020-06-30 20:57:35 +02:00