Repository Issue Activity (beta)

yosyshq/yosys

Current issue state, recent activity, and per-issue timelines from the indexed issue data.

Open Issues
215
New in 7 Days
4
Closed in 7 Days
5
Average Open Age
1122 days
Stale 30+ Days
188
Stale 90+ Days
161
Last 2 Weeks
DateOpenedClosedCommentsEventsOpen Backlog
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2026-09-1900000
2026-09-1810112
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This Week

Opened: 4

Closed: 5

Comments: 8

Events: 15

Top Labels
pending-verification (208)
bug (144)
feature-request (83)
enhancement (41)
needs-external-contribution (37)
fix-pending (30)
SystemVerilog (27)
error-handling (27)
Issue Explorer
IssueAuthorStateLabelsCommentsReactionsUpdated

#4977 yosys-abc: src/map/scl/sclLibUtil.c:77: void abc::Abc_SclHashCells(SC_Lib *): Assertion `*pPlace == -1' failed.

Opened 1 year ago
oharboe
open
ABC
error-handling
901 day ago

#6216 wit2yw throws away the per-step values of $anyseq, so BTOR counterexamples do not replay

Opened 2 days ago
Gy-Hu
open
No labels
102 days ago

#6215 `$(yosys-config --datdir)/plugins` does not give true module loading path

Opened 3 days ago
omcaif
open
No labels
003 days ago

#6041 Over-width logical right shift followed by dynamic shift produces X

Opened 2 months ago
qinkejiu
closed - duplicate
pending-verification
603 days ago

#6214 Dynamic right shift followed by logical-not is synthesized incorrectly

Opened 3 days ago
qinkejiu
open
pending-verification
003 days ago

#6209 read_verilog: `` token pasting breaks when a macro argument is preceded by a newline or a comment

Opened 4 days ago
DiegoRosales
open
pending-verification
004 days ago

#6186 `synth_xilinx`: falling-edge BRAM port is unmappable on xc6v/xc7 when the other port needs `READ_FIRST`

Opened 11 days ago
MJoergen
closed - completed
pending-verification
004 days ago

#3697 Undef propagation in power operator

Opened 4 years ago
1353369570
open
question
304 days ago

#4451 `count_id(cell->name) == 0` failure

Opened 2 years ago
wyager
closed - completed
bug
ABC
615 days ago

#4349 "ERROR: Assert `count_id(wire->name) == 0' failed in kernel/rtlil.cc:2143" when using synth_{ice40,ecp5} on simple design

Opened 2 years ago
cr1901
open
bug
705 days ago

#2266 Canot reference items in instantiated module

Opened 6 years ago
zachjs
closed - duplicate
No labels
506 days ago

#2212 Suggestions to Improve debug/visualisation in SMT2 backend for SBY

Opened 6 years ago
dh73
open
enhancement
needs-external-contribution
206 days ago

#6183 Name conflict when using labels inside generate blocks with read_verilog

Opened 13 days ago
nakengelhardt
open
SystemVerilog
006 days ago

#2261 proc_arst: Unclear error message when (re)set polarity and sensitivity list do not agree

Opened 6 years ago
Ravenslofty
open
bug
106 days ago

#6198 proc_arst reports misleading "non-constant value 1'm" error for mismatched async-reset polarity

Opened 10 days ago
1353369570
closed - duplicate
error-handling
fuzzer
006 days ago

#2267 Error when installation directory contains spaces

Opened 6 years ago
gregdavill
closed - completed
bug
207 days ago

#6195 opt_dff leaves conflicting init attributes on aliased DFF outputs

Opened 10 days ago
1353369570
open
needs-info
pending-verification
fuzzer
309 days ago

#6196 opt_dff → opt_clean cant work

Opened 10 days ago
1353369570
open
needs-info
pending-verification
fuzzer
109 days ago

#6199 Incorrect optimization of signed logical right shift when shift amount equals operand width

Opened 10 days ago
1353369570
closed - completed
invalid
109 days ago

#6165 Fails to substitute module code for instance in particular situations

Opened 19 days ago
pbreuer
open
SystemVerilog
feature-request
14010 days ago

#6190 CXXRTL out-of-bounds memory read aborts at runtime

Opened 10 days ago
qinkejiu
closed - not_planned
pending-verification
3010 days ago

#2213 Removal of conditional code macro definitions for ABC/ABC9

Opened 6 years ago
litghost
open
No labels
4010 days ago

#6189 opt_ffinv crashes with std::out_of_range when a multi-bit $not is connected to a 1-bit FF

Opened 10 days ago
zphuang0429
open
No labels
0010 days ago

#6157 Failed to rename *.scl.tmp to *.scl falling back to liberty format

Opened 23 days ago
gadfort
closed - completed
pending-verification
0013 days ago

#6002 Assertion in hierarchy when elaborating parameterized generate instances due to non-unique name

Opened 3 months ago
jojomon7892-creator
open
bug
1013 days ago

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