mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-10-27 01:39:23 +00:00
Code Activity
15656 commits 122 branches 59 tags 72 MiB
Commit graph

126 commits

Author SHA1 Message Date
Marcelina Kościelnicka
a23d9409e7 opt_mem: Remove write ports with const-0 EN. 
Fixes #2765.
 2021-05-23 14:30:56 +02:00
Marcelina Kościelnicka
5c1e6a0e20 opt_dff: Fix NOT gates wired in reverse. 2021-05-04 21:03:40 +02:00
Marcelina Kościelnicka
3af871f969 opt_clean: Remove init attribute bits together with removed DFFs. 
Fixes #2546.
 2021-03-15 17:16:53 +01:00
Marcelina Kościelnicka
f965b3fa54 rtlil: Disallow 0-width chunks in SigSpec. 
Among other problems, this also fixes equality comparisons between
SigSpec by enforcing a canonical form.

Also fix another minor issue with possible non-canonical SigSpec.

Fixes #2623.
 2021-03-15 17:16:24 +01:00
Marcelina Kościelnicka
a3528649c8 memory_dff: Remove now-useless write port handling. 2021-03-08 20:16:29 +01:00
Marcelina Kościelnicka
01626e6746 opt_share: Fix X and CO signal width for shifted $alu in opt_share. 
These need to be the same length as actual Y, not visible part of Y.

Fixes #2538.
 2021-01-14 14:54:08 +01:00
Marcelina Kościelnicka
7670a89e1f opt_clean: Better memory handling. 
Previously, `$memwr` and `$meminit` cells were always preserved (along
with the memory itself).  With this change, they are instead part of the
main cell mark-and-sweep pass: a memory (and its `$meminit` and `$memwr`
cells) is only preserved iff any associated `$memrd` cell needs to be
preserved.
 2020-10-08 18:05:51 +02:00
Xiretza
bed14241ef
tests: add gitignores for auto-generated makefiles 2020-09-26 16:28:24 +02:00
Xiretza
acd47bbd52
tests: Centralize test collection and Makefile generation 2020-09-21 15:07:02 +02:00
clairexen
a96df40814
Merge pull request #2344 from YosysHQ/mwk/opt_share-fixes 
opt_share: Refactor, fix some bugs.
 2020-08-20 16:24:53 +02:00
clairexen
6a68b8ed54
Merge pull request #2328 from YosysHQ/mwk/opt_dff-cleanup 
Remove passes redundant with opt_dff
 2020-08-20 16:21:58 +02:00
Marcelina Kościelnicka
2b777bbda8 opt_share: Refactor, fix some bugs. 
Fixes #2334.
Fixes #2335.
Fixes #2336.
 2020-08-17 17:26:36 +02:00
Marcelina Kościelnicka
a0e99a9f3f peepopt: Remove now-redundant dffmux pattern. 2020-08-07 13:21:34 +02:00
Marcelina Kościelnicka
e89cc9c02f peepopt.muldiv: Add a signedness check. 
Fixes #2318.
 2020-08-04 16:30:24 +02:00
Marcelina Kościelnicka
af6623ebb8 Add opt_dff pass. 2020-07-30 18:27:04 +02:00
Marcelina Kościelnicka
dc18bf1969 opt_expr: Fix handling of $_XNOR_ cells with A = B. 
Fixes #2311.
 2020-07-29 12:41:43 +02:00
Marcelina Kościelnicka
abe4e9e607 clk2fflogic: Support all FF types. 2020-07-24 03:19:48 +02:00
Marcelina Kościelnicka
7afcb72c98 opt_expr: Fix crash on $mul optimization with more zeros removed than Y has. 
Fixes #2221.
 2020-07-05 06:31:58 +02:00
Kamil Rakoczy
39c39848a2 Add sub-assign and and-assign tests 
Signed-off-by: Kamil Rakoczy <krakoczy@antmicro.com>
 2020-06-25 14:32:05 +02:00
Kamil Rakoczy
470df03f3d Move combined assign tests to single file 
Signed-off-by: Kamil Rakoczy <krakoczy@antmicro.com>
 2020-06-25 14:19:16 +02:00
Kamil Rakoczy
f6d06c9f7b Add xor-assignment test 
Signed-off-by: Kamil Rakoczy <krakoczy@antmicro.com>
 2020-06-24 14:46:21 +02:00
Kamil Rakoczy
a5ca4eeefb Add or-assignment and plus-assignment tests 
Signed-off-by: Kamil Rakoczy <krakoczy@antmicro.com>
 2020-06-24 11:56:26 +02:00
Claire Wolf
b3b515087d Fix tests/opt/opt_rmdff 
This only passed before because "prep" was also running opt_rmdff

Signed-off-by: Claire Wolf <claire@symbioticeda.com>
 2020-06-09 22:48:26 +02:00
Eddie Hung
73b7ea713c
Merge pull request #1994 from YosysHQ/eddie/fix_bug1758 
opt_expr: improve single-bit $and/$or/$xor/$xnor cells; gate cells too
 2020-05-14 11:56:22 -07:00
Eddie Hung
5be4b00a0d opt_clean: improve warning message 2020-05-14 00:59:38 -07:00
Eddie Hung
aa4a69f89b opt_clean: add init test 2020-05-14 00:31:08 -07:00
Eddie Hung
49e64ad492 test: update opt_expr_alu test 2020-05-08 11:12:58 -07:00
Eddie Hung
495acf9815 tests: opt_expr tests that depend on consumex 2020-05-08 11:07:11 -07:00
Eddie Hung
7f9ecddb7f Add testcase for #2010 2020-05-01 14:07:33 -07:00
Eddie Hung
b5f38f8342 opt_expr: const_xnor replacement to pad Y with 1'b1 2020-04-24 14:13:45 -07:00
Eddie Hung
ebd6fa945d tests: opt_expr update xnor/xor tests 2020-04-24 11:16:25 -07:00
Eddie Hung
90b71eb84b opt_expr: do not group by X, more fixes 2020-04-23 18:15:07 -07:00
Eddie Hung
b84415094c tests: add opt_expr tests 2020-04-23 15:58:36 -07:00
Marcelina Kościelnicka
2f8541a92e opt_expr: Fix X and CO outputs for $alu identity-mapping rules. 2020-04-16 11:48:29 +02:00
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
Marcelina Kościelnicka
840bb17089 opt_expr: Optimize multiplications with low 0 bits in operands. 
Fixes #1500.
 2020-04-13 16:52:22 +02:00
Eddie Hung
4ae7f3a8ed
Merge pull request #1790 from YosysHQ/eddie/opt_expr_xor 
opt_expr: optimise $xor/$xnor/$_XOR_/$_XNOR_ -s with constant inputs
 2020-04-01 14:17:01 -07:00
Eddie Hung
e79bc45975
Merge pull request #1789 from YosysHQ/eddie/opt_expr_alu 
opt_expr: improve performance on $alu and $sub
 2020-04-01 14:11:09 -07:00
Eddie Hung
6274f0b075 opt_expr: add failing $xnor test 2020-03-20 14:38:50 -07:00
Eddie Hung
81ca776ea4 opt_expr: add $xor/$xnor/$_XOR_/$_XNOR_ tests 2020-03-19 16:59:11 -07:00
Eddie Hung
5e2562f1a2 opt_expr: add $alu tests 2020-03-19 14:57:10 -07:00
Eddie Hung
9f30d7f843 opt_merge: speedup 2020-03-16 12:43:54 -07:00
Eddie Hung
505557e93e
Merge pull request #1576 from YosysHQ/eddie/opt_merge_init 
opt_merge: discard \init of '$' cells with 'Q' port when merging
 2020-02-05 14:56:26 -08:00
Marcelina Kościelnicka
34d2fbd2f9
Add opt_lut_ins pass. (#1673) 2020-02-03 14:57:17 +01:00
Eddie Hung
d86d073ad6 Add testcase 2019-12-13 10:26:30 -08:00
Marcin Kościelnicki
fdcbda195b opt_share: Fix handling of fine cells. 
Fixes #1525.
 2019-11-27 08:01:07 +01:00
Eddie Hung
173c7936c3 Add missing -assert to equiv_opt 2019-09-06 22:51:44 -07:00
Eddie Hung
6f971470f8 Respect opt_expr -keepdc as per @cliffordwolf 2019-08-22 08:37:27 -07:00
Eddie Hung
379f33af54 Handle $shift and Y_WIDTH > 1 as per @cliffordwolf 2019-08-22 08:22:23 -07:00
Eddie Hung
bb1a8a0190 Add test 2019-08-21 21:58:20 -07:00