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Natalia d25171806b wreduce: queue traversal and add regression test 
Implement iterative queue-based traversal in wreduce pass to propagate
width reductions across dependent cells and wires. Previously, wreduce
would process all cells once, then all wires once. This meant that
reductions couldn't propagate through chains of operations.

The new algorithm maintains work queues for both cells and wires,
processing them iteratively until no more reductions are possible.
When a cell or wire is reduced, dependent cells and wires are added
back to the queues for reprocessing.

Add regression test to verify that width reductions propagate through
a chain of operations: (a + b)[3:0] + c, ensuring the first addition
is reduced from 9 bits to 4 bits.
2026-01-14 00:32:41 -08:00
..
aiger Merge pull request #5526 from YosysHQ/emil/fix-cellaigs-function-arg-eval-order 2025-12-12 10:00:09 +01:00
alumacc Limit YOSYS_MAX_THREADS to 4 for abcopt-tests 2025-12-04 12:09:49 +01:00
arch Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
asicworld Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
bind Add a general tests/.gitignore and remove redundant entries in subdirectory .gitignore files. 2025-07-22 10:38:38 +00:00
blif Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
bram Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
bugpoint raise_error: don't rely on module ordering in test 2025-09-16 15:47:16 +02:00
cxxrtl Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
errors Rename the generic "Syntax error" message from the Verilog/SystemVerilog parser into unique, 2018-10-25 02:37:56 +03:00
fmt Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
fsm Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
functional Add test 2026-01-06 16:19:04 -08:00
hana Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
liberty Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
lut Add a general tests/.gitignore and remove redundant entries in subdirectory .gitignore files. 2025-07-22 10:38:38 +00:00
memfile Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
memlib Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
memories Limit YOSYS_MAX_THREADS to 4 for abcopt-tests 2025-12-04 12:09:49 +01:00
opt wreduce: queue traversal and add regression test 2026-01-14 00:32:41 -08:00
opt_share Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
peepopt Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
proc Test empty switches 2026-01-07 13:21:33 +13:00
pyosys pyosys: __getitem__ for supported classes 2025-11-19 18:09:41 +02:00
realmath tests: use /usr/bin/env for bash. 2023-08-12 11:59:39 +10:00
rpc Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
rtlil Add CONST_FLAG_UNSIZED 2025-11-07 17:45:07 +13:00
sat fix(parse): #5234 adjust width of rhs according to lhs 2025-09-16 15:24:23 +02:00
sdc sdc: error on unknown getters 2025-11-19 15:26:02 +01:00
select Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
share Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
sim Revert sim's cycle_width default back to 10, but keep -width option 2025-10-20 14:40:05 +02:00
simple Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
simple_abc9 Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
smv Remove references to ilang 2024-11-05 12:36:31 +13:00
sva tests/sva: Skip sva tests that use SBY until SBY is compatible again 2024-03-05 14:37:33 +01:00
svinterfaces Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
svtypes tests: remove -seq 1 from sat with -tempinduct where possible 2025-09-08 18:04:32 +02:00
techmap add lut2bmux 2026-01-06 14:48:16 +01:00
tools Add AFL++ Grammar-Generator grammar for RTLIL fuzzing, and instructions for how to use it. 2025-12-22 21:56:26 +00:00
unit Optimize IdString operations to avoid calling c_str() 2025-11-12 11:52:04 +01:00
various Implement design_equal command 2025-12-21 21:47:40 +00:00
verific Update run-test.sh 2025-12-16 04:16:03 -08:00
verilog Merge pull request #4235 from ylm/genblk_wire 2026-01-13 16:40:22 +01:00
vloghtb tests: use /usr/bin/env for bash. 2023-08-12 11:59:39 +10:00
xprop Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
.gitignore Add a general tests/.gitignore and remove redundant entries in subdirectory .gitignore files. 2025-07-22 10:38:38 +00:00
common-env.sh Limit YOSYS_MAX_THREADS to 4 when running seed-tests 2025-12-04 12:09:48 +01:00
gen-tests-makefile.sh Limit YOSYS_MAX_THREADS to 4 when running makefile-tests so we don't overload systems when running 'make -j... test' 2025-12-04 12:09:04 +01:00
pass-fuzzing.md Add AFL++ Grammar-Generator grammar for RTLIL fuzzing, and instructions for how to use it. 2025-12-22 21:56:26 +00:00