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3839 Commits

Author SHA1 Message Date
Jannis Harder a2f9ebe43a memory_map: Add -formal option 
This maps memories for a global clock based formal verification flow.
This implies -keepdc, uses $ff cells for ROMs and sets hdlname
attributes.
 2022-08-16 13:37:30 +02:00
Jannis Harder 0cdb14df41 setundef: Do not add anyseq / anyconst to unused memory port clocks 
Instead set those unused clocks to zero.
 2022-08-16 13:37:30 +02:00
Jannis Harder 428ad5b9fd wreduce: Keep more x-bits with -keepdc 2022-08-16 13:37:30 +02:00
Jannis Harder 95db5a9d38 formalff: New -setundef option 
Find FFs with undefined initialization values for which changing the
initialization does not change the observable behavior and initialize
them. For -ff2anyinit, this reduces the number of generated $anyinit
cells that drive wires with private names.
 2022-08-16 13:37:30 +02:00
Jannis Harder a5e1d3b997 formalff: Set new replaced_by_gclk attribute on removed dff's clks 
This attribute can be used by formal backends to indicate which clocks
were mapped to the global clock. Update the btor and smt2 backend which
already handle clock inputs to understand this attribute.
 2022-08-16 13:37:30 +02:00
Jannis Harder c0063288d6 Add the $anyinit cell and the formalff pass 
These can be used to protect undefined flip-flop initialization values
from optimizations that are not sound for formal verification and can
help mapping all solver-provided values in witness traces for flows that
use different backends simultaneously.
 2022-08-16 13:37:30 +02:00
N. Engelhardt 6f439dc59a
Merge pull request #3425 from YosysHQ/lofty/stat-json 2022-08-11 17:00:54 +02:00
Lofty 59facfa98c stat: add option for machine-readable json output 2022-08-11 13:41:01 +01:00
N. Engelhardt 63fca0dbc2
Merge pull request #3277 from YosysHQ/lofty/rename-scramble_name 2022-08-11 12:06:04 +02:00
Miodrag Milanovic f4a1906721 support file locations containing spaces 2022-08-08 20:30:50 +02:00
Lofty a48dcd1d40 rename: add -scramble-name option to randomly rename selections 2022-08-08 16:03:28 +01:00
Marcelina Kościelnicka f679b756d8 opt_reduce: Fix use-after-free. 
Fixes #3418.
 2022-07-23 17:27:26 +02:00
Jannis Harder 14ba50908b sim: Fix $anyseq in nested modules 2022-07-22 14:48:30 +02:00
Catherine 502b96fe53 Fix external ABC build after commit 0ca0932b5. 2022-07-07 08:38:30 +00:00
Jannis Harder 4a1e54bf70
Merge pull request #3395 from jix/opt_dff_keepdc_initival 
opt_dff: With -keepdc, never turn undef init vals into const drivers
 2022-07-01 16:52:32 +02:00
Jannis Harder 876ef59f4f
Merge pull request #3396 from jix/async2sync_const_clocks 
async2sync: turn FFs with const clks into gclk FFs with feedback
 2022-07-01 16:47:31 +02:00
Jannis Harder 0182b26aba
Merge pull request #3391 from programmerjake/simcheck-allow-smtlib2-blackboxes 
add hierarchy -smtcheck
 2022-07-01 14:38:45 +02:00
Jannis Harder 5db542742b async2sync: turn FFs with const clks into gclk FFs with feedback 
The formal backends do not support multiple clocks. This includes
constant clocks. Constant clocks do appear in what isn't a proper
multiclock design, for example when mapping not fully initialized ROMs.
As converting FFs with constant clocks to FFs using the global is doable
even in a single clock flow, make async2sync do this.
 2022-06-30 12:09:04 +02:00
Jannis Harder a47254bd10 opt_dff: With -keepdc, never turn undef init vals into const drivers 2022-06-29 15:42:39 +02:00
Jannis Harder a6b440b5c9 memory_map: avoid undriven unused FF inputs for -keepdc 2022-06-28 19:05:35 +02:00
Jannis Harder d78d807a7f memory_map: -keepdc option for formal 
Use it when invoking memory_map -rom-only from write_{smt2,btor}.
 2022-06-27 15:47:55 +02:00
George Rennie fbf5d89587 equiv_make: Add -make_assert option 
This adds a -make_assert flag to equiv_make. When used, the pass generates
$eqx and $assert cells to encode equivalence instead of $equiv.
 2022-06-24 00:17:02 +01:00
Jacob Lifshay c16c028831 add hierarchy -smtcheck 
like -simcheck, but allow smtlib2_module modules.
 2022-06-22 20:53:10 -07:00
George Rennie 5dfad5101d chformal: Rename -coverprecond to -coverenable 2022-06-18 18:28:12 +01:00
Jannis Harder e39c422734 chformal: Test -coverprecond and reuse the src attribute 2022-06-18 18:19:26 +01:00
George Rennie c659bd1878 chformal: Add -coverprecond option 
This inserts $cover cells to cover the enable signal (precondition)
for the selected formal cells.
 2022-06-18 18:19:26 +01:00
Marcelina Kościelnicka ab3a9325c3 memory_map: Add -rom-only option. 2022-06-17 16:56:11 +02:00
Marcelina Kościelnicka 01daa077a2 memory_map: Use const drivers instead of FFs for ROMs. 2022-06-17 15:17:14 +02:00
Marcelina Kościelnicka d69091806a memory_libmap: Fix wrprio handling. 2022-06-17 02:09:37 +02:00
Marcelina Kościelnicka 25a4cd7020 memory_libmap: Fix params emitted for unused ports for consistency. 2022-06-16 08:14:08 +02:00
N. Engelhardt 3eaa9e38e0
Merge pull request #3196 from bfg86/bfg86/rename 
Add -suffix option to rename -wire
 2022-06-13 16:00:04 +02:00
Marcelina Kościelnicka 1ff0e1a58a opt_ffinv: Fix use after free. 2022-06-13 14:04:04 +02:00
bfg86 aedd3b7999 Updating help-text with nakengelhardts suggestion. 2022-06-13 09:35:10 +02:00
N. Engelhardt b8ede6162b
Merge pull request #3349 from nakengelhardt/select_count_scratchpad 
Make 'stat' and 'select -count' save counts to scratchpad
 2022-06-09 17:15:02 +02:00
N. Engelhardt 871b277d35
Merge pull request #3359 from jix/fmcombine-memid 
fmcombine: Add _gold/_gate suffix to memids
 2022-06-09 17:12:34 +02:00
Henner Zeller 9d41aa8e28 Avoid unnecessary copy of a potential large constant value. 
The local variable is used just to iterate through the values, so
a const reference is all we need.
 2022-06-09 16:05:51 +01:00
Marcelina Kościelnicka 47efc04a7d wreduce: Introduce -mux_undef option (aligned with opt_expr). 2022-06-08 21:28:58 +02:00
Lofty aae2c01326 sta: warn on unrecognised cells only once 2022-06-08 09:31:49 +01:00
Marcelina Kościelnicka d07828b409 opt_ffinv: Harden against simple ff/inv loop. 2022-06-07 08:20:06 +02:00
Marcelina Kościelnicka 9e8a2ac051 iopadmap: Fix z assignment removal. 
Fixes #3360.
 2022-06-07 04:10:50 +02:00
Jannis Harder 459941c8ff fmcombine: Add _gold/_gate suffix to memids 2022-06-03 21:52:28 +02:00
Miodrag Milanovic d88a5d26b7 Fix preventing show crashing with newer graphviz 2022-06-03 08:38:16 +02:00
Marcelina Kościelnicka 71dfbf33b2 Add -no-rw-check option to memory_dff + memory + synth_{ice40,ecp5,gowin}. 2022-06-02 23:16:12 +02:00
Marcelina Kościelnicka 3a0aa9c663 memory_dff: Add support for no_rw_check attribute. 2022-06-02 12:49:34 +02:00
N. Engelhardt 61b05051e1 also make 'stat' save counts to scratchpad 2022-06-01 16:01:07 +02:00
N. Engelhardt a55c3db384 have 'select -count' save the count to scratchpad entry 'select.count' 2022-06-01 14:39:33 +02:00
Mohamed A. Bamakhrama 1822be8792 Observe $TMPDIR variable when creating tmp files 
POSIX defines $TMPDIR as containing the pathname of the directory where
programs can create temporary files. On most systems, this variable points to
"/tmp". However, on some systems it can point to a different location.
Without respecting this variable, yosys fails to run on such systems.

Signed-off-by: Mohamed A. Bamakhrama <mohamed@alumni.tum.de>
 2022-05-27 15:06:53 +02:00
gatecat 166a175983 abc9_ops: Don't leave unused derived modules lying around 
These later become accidentally used for techmap replacements for
blackboxes that we don't actually want.

Signed-off-by: gatecat <gatecat@ds0.me>
 2022-05-23 15:02:25 +01:00
Jannis Harder fc65ea47df select: Fix -assert-none and -assert-any error output and docs 
Both of these options consider a selection containing only empty modules
as non-empty. This wasn't mentioned in the documentation nor did the
error message when using `select -assert-none` list those empty modules,
which produced a very confusing error message complaining about a
non-empty selection followed by an empty listing of the selection.

This fixes the documentation and changes the `-assert-none` and
`-assert-any` assertion error messages to also output fully selected
modules (this includes selected empty modules).

It doesn't change the messages for `-assert-count` etc. as they don't
count modules.
 2022-05-19 14:07:34 +02:00
Marcelina Kościelnicka 606f1637ae Add memory_bmux2rom pass. 2022-05-18 22:48:55 +02:00
Marcelina Kościelnicka 7c5dba8b77 Add memory_libmap pass. 2022-05-18 17:32:56 +02:00
Marcelina Kościelnicka 9450f308f0 proc_rom: Add special handling of const-0 address bits. 2022-05-18 17:32:30 +02:00
Marcelina Kościelnicka 98c7804b89 opt_ffinv: Use ModIndex instead of ModWalker. 
This avoids using out-of-data index information.
 2022-05-17 02:52:21 +02:00
Marcelina Kościelnicka 2858bb03cd Add opt_ffinv pass. 2022-05-13 23:02:30 +02:00
Marcelina Kościelnicka 990c9b8e11 Add proc_rom pass. 2022-05-13 00:37:14 +02:00
Miodrag Milanović 58b23954e8
Merge pull request #3299 from YosysHQ/mmicko/sim_memory 
sim pass: support for memories
 2022-05-09 09:28:09 +02:00
Marcelina Kościelnicka 77b1dfd8c3 opt_mem: Remove constant-value bit lanes. 2022-05-07 23:13:16 +02:00
imhcyx 71166eeecf memory_share: fix wrong argidx in extra_args 2022-05-05 16:58:39 +08:00
Marcelina Kościelnicka 18a48b1337 abc: Use dict/pool instead of std::map/std::set 2022-05-04 22:04:50 +02:00
Miodrag Milanovic 8e02b3ca30 fix crash when no fst input 2022-05-04 11:21:39 +02:00
Miodrag Milanovic ad48639cdd Start restoring memory state from VCD/FST 2022-05-04 10:41:04 +02:00
Miodrag Milanovic 3730db4b98 AIM file could have gaps in or between inputs and inits 2022-05-02 11:18:30 +02:00
Jannis Harder e0e31bfc5c
Merge pull request #3257 from jix/tribuf-formal 
tribuf: `-formal` option: convert all to logic and detect conflicts
 2022-04-25 16:23:06 +02:00
Miodrag Milanovic bbfdea2f8a Match $anyseq input if connected to public wire 2022-04-22 17:20:17 +02:00
Miodrag Milanovic 4d80bc24c7 Treat $anyseq as input from FST 2022-04-22 16:23:39 +02:00
Miodrag Milanovic 33f4009bb5 Last sample from input does not represent change 2022-04-22 13:46:11 +02:00
Miodrag Milanovic 83cad82b29 latches are always set to zero 2022-04-22 12:04:05 +02:00
Miodrag Milanovic c989adcc2d If not multiclock, output only on clock edges 2022-04-22 12:03:39 +02:00
Miodrag Milanovic 75032a565d Set init state for all wires from FST and set past 2022-04-22 11:57:39 +02:00
Miodrag Milanovic 8fa2f3b260 Fix multiclock for btor2 witness 2022-04-22 11:53:41 +02:00
Miodrag Milanović c3a3f68b4d
Merge pull request #3280 from YosysHQ/micko/fix_readaiw 
Fix reading aiw from other solvers
 2022-04-18 09:49:21 +02:00
Marcelina Kościelnicka 25ff83f0b5 memory_share: Fix up mismatched address widths. 2022-04-15 22:01:00 +02:00
Marcelina Kościelnicka 48eea3efcf opt_dff: Fix behavior on $ff with D == Q. 2022-04-15 22:00:32 +02:00
Miodrag Milanovic 9508bb2330 Fix reading aiw from other solvers 2022-04-15 11:45:16 +02:00
Jannis Harder bc48500548 tribuf: `-formal` option: convert all to logic and detect conflicts 2022-04-12 12:46:22 +02:00
Miodrag Milanovic 868409361c Use wrap_async_control_gate if ff is fine 2022-04-08 16:30:29 +02:00
Iris Johnson ccc6060f52 Makefile: properly conditionalize features requiring compression. 2022-04-07 20:07:44 -05:00
Catherine 8a1d531b25
Merge pull request #3269 from YosysHQ/micko/fix_autotop 
Reorder steps in -auto-top to fix synth command, fixes #3261
 2022-04-07 22:40:35 +00:00
Marcelina Kościelnicka 376d8cb26f abc: Add support for FFs with reset in -dff 2022-04-07 15:05:02 +02:00
Miodrag Milanovic 977002b1d2 Reorder steps in -auto-top to fix synth command, fixes #3261 2022-04-05 14:02:37 +02:00
Marcelina Kościelnicka 0aec79a0da show: Fix width labels. 
See #3266.
 2022-04-04 22:48:09 +02:00
Miodrag Milanovic 6020ba67ac past_ad initial value setting 2022-04-02 19:13:15 +02:00
Miodrag Milanovic 2c96ecc5f7 setInitState can be only one altering values 2022-04-02 19:13:15 +02:00
Miodrag Milanovic b54aecd80a Set past_d value for init state 2022-04-02 19:13:15 +02:00
Jannis Harder 8ca9737180
Merge pull request #3264 from jix/invalid_ff_dcinit_merge 
opt_merge: Add `-keepdc` option required for formal verification
 2022-04-02 12:41:28 +02:00
Jannis Harder ca5b910296 opt_merge: Add `-keepdc` option required for formal verification 
The `-keepdc` option prevents merging flipflops with dont-care bits in
their initial value, as, in general, this is not a valid transform for
formal verification.

The keepdc option of `opt` is passed along to `opt_merge` now.
 2022-04-01 21:03:20 +02:00
Miodrag Milanovic 86ce441af6 Set init values for wrapped async control signals 2022-04-01 17:44:00 +02:00
Miodrag Milanovic c95b9b4ba5 Support memories in aiw and multiclock 2022-03-31 13:10:13 +02:00
Lofty c1057cb3e0
Merge pull request #3194 from Ravenslofty/abc9-flow3mfs 
abc9: add flow3mfs script
 2022-03-28 15:51:04 +01:00
gatecat 8b64dc1dce abc9_ops: Also derive blackboxes with timing info 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-03-24 14:36:07 +00:00
Miodrag Milanovic 322ab1cd54 Proper SigBit forming in sim 2022-03-22 14:43:18 +01:00
Miodrag Milanovic ff3b0c2c46 Proper SigBit forming in sim 2022-03-22 14:22:32 +01:00
Miodrag Milanovic 55eed8df57 More verbose warnings 2022-03-18 14:47:35 +01:00
Miodrag Milanovic 1f3423cd7d Recognize registers and set initial state for them in tb 2022-03-16 14:35:39 +01:00
Miodrag Milanovic e217e3017a Update sim help message. 2022-03-16 07:55:57 +01:00
Miodrag Milanović 25d6fdfea7
Merge pull request #3232 from YosysHQ/micko/fst2tb 
Added fst2tb pass for generating testbench
 2022-03-14 20:01:55 +01:00
Miodrag Milanovic f5c20b8286 Added fst2tb pass for generating testbench 2022-03-14 19:06:29 +01:00
Claire Xen 5e2992dae2
Merge pull request #3213 from antonblanchard/abc-typo 
abc: Fix {I} and {P} substitution
 2022-03-14 16:05:23 +01:00
Miodrag Milanović cbece4af0c
Merge pull request #3229 from YosysHQ/micko/sim_date 
Add date parameter to enable full date/time and version info
 2022-03-11 19:02:57 +01:00
Claire Xenia Wolf e21badd4b3 Add "sim -q" option 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-03-11 16:26:11 +01:00
Miodrag Milanovic 37de369ba7 Add date parameter to enable full date/time and version info 2022-03-11 16:01:59 +01:00
Claire Xenia Wolf be32de1caa Small fix in "sim" help message 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-03-11 15:36:23 +01:00
Miodrag Milanovic 5204694123 FstData already do conversion to VCD 2022-03-11 15:21:36 +01:00
Miodrag Milanovic b72c779204 Support cell name in btor witness file 2022-03-11 15:11:14 +01:00
Miodrag Milanovic 357336339a Proper write of memory data 2022-03-11 11:19:53 +01:00
Miodrag Milanovic 295b0d1899 Start work on memory init 2022-03-09 18:34:02 +01:00
Miodrag Milanovic f37ac5d934 Fixes and error check 2022-03-09 09:48:29 +01:00
Miodrag Milanovic ede348cdc2 cleanup 2022-03-07 16:32:32 +01:00
Miodrag Milanovic 1b1ecd4ab0 Error checks for aiger witness 2022-03-07 15:00:14 +01:00
Miodrag Milanovic b6aca1d743 btor2 witness co-simulation 2022-03-07 13:59:36 +01:00
Miodrag Milanović 9581b9adac
Merge pull request #3219 from YosysHQ/micko/quick_vcd 
VCD reader support by using external tool
 2022-03-04 10:42:14 +01:00
Miodrag Milanovic 59983eda17 Add option to ignore X only signals in output 2022-03-02 16:02:13 +01:00
Miodrag Milanovic 48b56a4f7f Write simulation files after simulation is performed 2022-03-02 15:23:07 +01:00
Miodrag Milanovic 28bc88a57e Cleanup 2022-03-02 09:39:22 +01:00
Miodrag Milanovic 94505395a9 Refactor sim output writers 2022-02-28 18:22:39 +01:00
Miodrag Milanovic dfd4c81eac Quick fix 2022-02-28 11:40:06 +01:00
Claire Xenia Wolf 56b968f61c Add writing of aiw files to "sim" command 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-02-28 10:50:08 +01:00
Claire Xenia Wolf 1fd3a642c9 Hotfix in AIGER witness reader state machine 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-02-28 10:41:44 +01:00
Miodrag Milanovic 8be09b5b24 VCD reader support by using external tool 2022-02-28 09:09:07 +01:00
Miodrag Milanovic 9571acc0bf Support extended aiw format 2022-02-27 16:37:40 +01:00
Miodrag Milanovic fca168797e Fix for last clock edge data 2022-02-25 16:15:32 +01:00
Claire Xenia Wolf ca261d3c28 Experimental sim changes 2022-02-25 16:02:06 +01:00
Anton Blanchard 89300b2dca abc: Fix {I} and {P} substitution 
We were searching for {D} after the first match of {I} or {P}.
 2022-02-23 18:54:28 +11:00
Claire Xen a41c1df76f
Merge pull request #3211 from YosysHQ/micko/witness 
Add support for AIGER witness files in "sim" command
 2022-02-22 16:22:06 +01:00
Miodrag Milanovic fd3f08753a Fix handling of ce_over_srst 2022-02-21 16:36:12 +01:00
Claire Xenia Wolf 1aa9ad25d0 Fix cycle 0 in aiger witness co-simulation 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-02-18 16:27:41 +01:00
Miodrag Milanovic 41754b4207 Added AIGER witness file co simulation 2022-02-18 15:04:02 +01:00
Miodrag Milanovic 13a5c28459 simplify logic of handling flip-flops and latches 2022-02-18 09:17:36 +01:00
Miodrag Milanovic 61752b255f Review cleanup 2022-02-17 17:18:36 +01:00
Miodrag Milanovic fb22d7cdc4 Add support for various ff/latch cells simulation 2022-02-16 13:27:59 +01:00
Claire Xen 49545c73f7
Merge branch 'master' into clk2ff-better-names 2022-02-11 16:03:12 +01:00
Claire Xen e016518866
Merge pull request #2019 from boqwxp/glift 
Add `glift` command for creating gate-level information flow tracking models and optimization problems
 2022-02-11 15:51:24 +01:00
bfg86 7ac98d1c87 Add -suffix option to rename -wire. 
See #3195
 2022-02-11 00:05:13 +01:00
Lofty 5ac32ea68c abc9: add flow3mfs script 2022-02-10 18:28:35 +00:00
Miodrag Milanović d7f7227ce8
Merge pull request #3185 from YosysHQ/micko/co_sim 
Add co-simulation in sim pass
 2022-02-07 16:36:43 +01:00
Miodrag Milanovic c0a156bcb4 Error detection for co-simulation 2022-02-04 11:11:36 +01:00
Miodrag Milanovic 6db23de7b1 bug fix and cleanups 2022-02-04 10:01:06 +01:00
YRabbit f5609d52c4 Correct a typo in the manual 
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
 2022-02-02 21:14:38 +10:00
Miodrag Milanovic 990aee5531 respect hide_internal flag 2022-02-02 10:15:22 +01:00
Miodrag Milanovic 169ffcd2fb unify cycles counting and cleanup 2022-02-02 10:08:23 +01:00
Miodrag Milanovic 820b2fdd65 added stimulus mode and param check 2022-02-02 09:37:32 +01:00
Scott Thibault 0a6e2bd5d5 Update comment 2022-02-02 03:21:09 +01:00
Scott Thibault e04ac4e9e9 Fix unextend method for signed constants 2022-02-02 03:21:09 +01:00
Miodrag Milanovic 8ba2000a50 error when no signal found 2022-01-31 17:41:50 +01:00
Miodrag Milanovic 1b5ff92e62 Cleanup 2022-01-31 13:45:28 +01:00
Miodrag Milanovic eabd0ff115 Compare bits when not all are defined 2022-01-31 13:41:02 +01:00
Miodrag Milanovic 26de52fa09 Cleanup 2022-01-31 12:00:15 +01:00
Miodrag Milanovic 6513300db7 message update 2022-01-31 11:41:52 +01:00
Miodrag Milanovic 543feb75cb Display simulation time data 2022-01-31 10:52:47 +01:00
Miodrag Milanovic a6959d30df Use edges when explicit 2022-01-31 09:38:25 +01:00