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Marcelina Kościelnicka 6c16fd760b opt_expr: Add more $alu optimizations. 
Detect the places in the $alu where the carry bit is constant (due to
const A[i] == B[i] ^ BI) and split it into smaller $alu at these points.

Also, make the existing const-carry detection for low bits more generic
(now handles cases where both BI and CI are constant, but not equal to
one another).

Fixes #1912.
2020-04-14 21:48:13 +02:00
..
aiger
tests/aiger: Add missing .gitignore
2020-02-15 19:52:21 +01:00
arch
Merge pull request #1603 from whitequark/ice40-ram_style
2020-04-10 14:51:01 +00:00
asicworld
Fix FIRRTL to Verilog process instance subfield assignment.
2019-02-25 16:18:13 -08:00
bram
Added support for (single-clock) transparent memories to bram tests
2016-11-01 10:03:13 +01:00
errors
Rename the generic "Syntax error" message from the Verilog/SystemVerilog parser into unique,
2018-10-25 02:37:56 +03:00
fsm
Speed up "make test" and related cleanups
2019-08-17 14:37:07 +02:00
hana
Add optional SEED=n command line option to Makefile, and -S n command line option to test scripts, for deterministic regression tests.
2016-09-22 11:49:29 -06:00
liberty
Liberty file parser now accepts superfluous ;
2019-03-27 15:16:19 +01:00
lut
Forgot to commit
2019-07-16 12:44:26 -07:00
memfile
Added 'set -e' into tests/memfile/run-test.sh
2020-02-06 10:45:40 -03:00
memories
memory_dff: Fix checking of feedback mux input when more than one mux
2019-07-02 13:35:50 +01:00
opt
opt_expr: Add more $alu optimizations.
2020-04-14 21:48:13 +02:00
opt_share
Support various binary operators in opt_share
2019-08-04 19:06:38 +02:00
proc
proc_clean: fix order of switch insertion.
2019-08-19 16:44:23 +00:00
realmath
Add optional SEED=n command line option to Makefile, and -S n command line option to test scripts, for deterministic regression tests.
2016-09-22 11:49:29 -06:00
rpc
rpc test: make frontend listen before launching yosys & introduce safeguard if yosys errors
2020-03-06 15:29:01 +01:00
sat
Merge pull request #1638 from YosysHQ/eddie/fix1631
2020-02-05 19:31:18 +01:00
select
Add .gitignore to tests/select/
2020-04-12 22:45:45 +02:00
share
Add optional SEED=n command line option to Makefile, and -S n command line option to test scripts, for deterministic regression tests.
2016-09-22 11:49:29 -06:00
simple
Add dynamic slicing Verilog testcase
2020-03-31 11:51:31 -07:00
simple_abc9
Update simple_abc9 tests
2020-02-27 10:17:29 -08:00
smv
Progress in SMV back-end
2015-06-19 14:08:46 +02:00
sva
Fix "verific -extnets" for more complex situations
2019-03-26 14:17:46 +01:00
svinterfaces
Fix typo in tests/svinterfaces/runone.sh
2019-05-03 14:40:51 +02:00
svtypes
support using previously declared types/localparams/params in package
2020-04-07 00:38:15 -04:00
techmap
dffinit: Avoid setting init parameter to zero-length value.
2020-04-14 19:52:19 +02:00
tools
autotest.sh to define _AUTOTB when test_autotb
2019-06-28 14:56:22 -07:00
unit
Build hotfix in tests/unit/Makefile
2016-12-11 10:58:49 +01:00
various
tests: add a quick plugin test
2020-04-09 09:45:20 -07:00
vloghtb
bugfix in blif front-end
2015-05-18 11:15:49 +02:00