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yosys/kernel
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Exact
Emil J. Tywoniak 5d38ce7a54 signorm: an unconnected output port does not claim a driver 
setup_driven_wires() gave a zero-width port connection -- an output left
unattached, `.q_bar()` -- a helper wire and recorded the cell as its driver.
Nothing ever retracts that: unsetPort skips zero-width connections, as does
signorm_index_add when adding them. So removing the cell left the helper wire
pointing at freed memory, and the next `check` dereferenced it.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MQU5XCqDYY8MbivGkNRrDo
2026-07-21 19:20:42 +02:00
..
unstable patch: fix signorm commit broken by twine rename 2026-07-20 15:01:30 +02:00
binding.cc
binding.h
bitpattern.h Fix covers_nothing. 2026-07-06 13:26:00 +02:00
calc.cc End of file fix 2026-06-23 07:23:41 +02:00
cellaigs.cc WIP 2026-07-20 12:27:17 +02:00
cellaigs.h WIP 2026-07-20 12:27:17 +02:00
celledges.cc WIP 2026-07-20 12:27:17 +02:00
celledges.h WIP 2026-07-20 12:27:17 +02:00
cellhelp.py Remove trailing whitespaces 2026-06-23 07:24:59 +02:00
celltypes.h WIP 2026-07-20 12:27:17 +02:00
CMakeLists.txt twine 2026-07-20 12:26:39 +02:00
compressor_tree.cc twines phase-3 build fix: post-fork main files broken by twine migration 2026-07-20 15:01:30 +02:00
compressor_tree.h End of file fix 2026-06-23 07:23:41 +02:00
compute_graph.h
consteval.h WIP 2026-07-20 12:27:17 +02:00
constids.inc twines phase-3 build fix: post-fork main files broken by twine migration 2026-07-20 15:01:30 +02:00
cost.cc prevent IdString construction when looking up module from instance type 2026-07-20 12:27:17 +02:00
cost.h WIP 2026-07-20 12:27:17 +02:00
driver.cc WIP migration to twine 2026-07-20 12:27:18 +02:00
drivertools.cc WIP 2026-07-20 12:27:17 +02:00
drivertools.h WIP 2026-07-20 12:27:17 +02:00
ff.cc ff: fix src_twine 2026-07-20 15:01:30 +02:00
ff.h opt_dff: keep the signorm index alive across the pass 2026-07-21 16:53:04 +02:00
ffinit.h ffinit: an x init bit is the absence of a value, not a conflict 2026-07-21 16:52:31 +02:00
ffmerge.cc WIP 2026-07-20 12:27:17 +02:00
ffmerge.h
fmt.cc WIP 2026-07-20 12:27:17 +02:00
fmt.h
fstdata.cc Migrate build system to CMake 2026-06-03 08:58:10 +00:00
fstdata.h
functional.cc functinoal: twines 2026-07-20 15:01:30 +02:00
functional.h functinoal: twines 2026-07-20 15:01:30 +02:00
gzip.cc
gzip.h
hashlib.h hashlib: error on unused containers 2026-05-12 12:51:41 +02:00
io.cc Fix Windows portability issues that break MSVC build. 2026-06-03 08:58:11 +00:00
io.h Remove trailing whitespaces 2026-06-23 07:24:59 +02:00
json.cc End of file fix 2026-06-23 07:23:41 +02:00
json.h
log.cc rtlil: options for dumping twines 2026-07-20 15:01:30 +02:00
log.h WIP 2026-07-20 12:27:17 +02:00
log_compat.cc Add one more compatibility logger used in patches for some time 2026-06-12 14:44:26 +02:00
log_help.cc Fixup help contents source_file 2026-07-09 16:05:15 +12:00
log_help.h Fixup help contents source_file 2026-07-09 16:05:15 +12:00
macc.h WIP 2026-07-20 12:27:17 +02:00
mem.cc twine: fix replayability, reduce TwineSearch usage 2026-07-20 13:57:10 +02:00
mem.h
modtools.h WIP 2026-07-20 12:27:17 +02:00
newcelltypes.h newcelltypes: twines 2026-07-20 12:27:18 +02:00
pattern.h
pmux.h WIP 2026-07-20 12:27:17 +02:00
qcsat.cc WIP 2026-07-20 12:27:17 +02:00
qcsat.h
register.cc WIP migration to twine 2026-07-20 12:27:18 +02:00
register.h Drop YOSYS_ENABLE_HELP_SOURCE since C++20 is required. 2026-06-03 08:58:11 +00:00
rtlil.cc rtlil: register a cloned cell's ports with the signorm index 2026-07-21 19:20:42 +02:00
rtlil.h WIP opt_clean: garbage collect against the signorm index 2026-07-21 15:10:36 +02:00
rtlil_bufnorm.cc signorm: an unconnected output port does not claim a driver 2026-07-21 19:20:42 +02:00
satgen.cc WIP 2026-07-20 12:27:17 +02:00
satgen.h WIP 2026-07-20 12:27:17 +02:00
scopeinfo.cc WIP 2026-07-20 12:27:17 +02:00
scopeinfo.h Refactored uses of log_id() 2026-05-08 20:59:24 -07:00
sexpr.cc
sexpr.h
sigtools.h sigmap: take the signorm index's map directly instead of via connections() 2026-07-21 12:53:38 +02:00
tclapi.cc twine: avoid TwinePool::lookup 2026-07-20 12:27:18 +02:00
threading.cc threading: whitespace 2026-05-18 16:26:14 +02:00
threading.h Migrate build system to CMake 2026-06-03 08:58:10 +00:00
timinginfo.h WIP 2026-07-20 12:27:17 +02:00
topo_scc.h Remove trailing whitespaces 2026-06-23 07:24:59 +02:00
twine.cc twine: fix replayability, reduce TwineSearch usage 2026-07-20 13:57:10 +02:00
twine.h twine: fix replayability, reduce TwineSearch usage 2026-07-20 13:57:10 +02:00
utils.h twine: fix replayability, reduce TwineSearch usage 2026-07-20 13:57:10 +02:00
version.cc.in Include build datetime in scl cache hash. 2026-07-10 12:44:34 +02:00
yosys.cc WIP 2026-07-20 12:27:17 +02:00
yosys.h Include build datetime in scl cache hash. 2026-07-10 12:44:34 +02:00
yosys_common.h twine: fix replayability, reduce TwineSearch usage 2026-07-20 13:57:10 +02:00
yosys_config.h.in Drop YOSYS_ENABLE_HELP_SOURCE since C++20 is required. 2026-06-03 08:58:11 +00:00
yw.cc
yw.h prevent IdString construction when looking up module from instance type 2026-07-20 12:27:17 +02:00