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Code Activity
15959 commits 122 branches 59 tags 72 MiB
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66 commits

Author SHA1 Message Date
Robert O'Callahan
5600eb2e5b Update passes/opt to avoid bits() 2025-09-16 03:17:23 +00:00
Emil J. Tywoniak
4f3fdc8457 io: refactor string and file work into new unit 2025-03-19 13:43:42 +01:00
Emil J. Tywoniak
c2691207df wreduce: fix warning for deprecated IdString::in(pool<IdString>) 2025-01-30 12:01:30 +01:00
Martin Povišer
be351886a5 wreduce: Adjust naming and comments 2025-01-03 12:54:34 +01:00
Martin Povišer
08778917db wreduce: Optimize signedness when possible 2024-12-16 12:57:08 +01:00
Emil J. Tywoniak
785bd44da7 rtlil: represent Const strings as std::string 2024-10-14 06:28:12 +02:00
Martin Povišer
ff3c7873f5 wreduce: Group reconnections 
Group the reconnections, so that instead of producing

  connect $auto$wreduce.cc:455:run$24 [0] 1'0
  connect $auto$wreduce.cc:455:run$23 [31] 1'0
  connect $auto$wreduce.cc:455:run$23 [30] 1'0
  ... (40 more lines)

we produce

  connect $auto$wreduce.cc:461:run$23 [31:11] 21'000000000000000000000
  connect $auto$wreduce.cc:461:run$24 [31:10] 22'0000000000000000000000

.
 2023-08-04 14:43:59 +01:00
Jannis Harder
428ad5b9fd wreduce: Keep more x-bits with -keepdc 2022-08-16 13:37:30 +02:00
Marcelina Kościelnicka
47efc04a7d wreduce: Introduce -mux_undef option (aligned with opt_expr). 2022-06-08 21:28:58 +02:00
Marcelina Kościelnicka
fd79217763 Add v2 memory cells. 2021-08-11 13:34:10 +02:00
Marcelina Kościelnicka
19720b970d memory: Introduce $meminit_v2 cell, with EN input. 2021-07-28 23:18:38 +02:00
Claire Xenia Wolf
72787f52fc Fixing old e-mail addresses and deadnames 
s/((Claire|Xen|Xenia|Clifford)\s+)+(Wolf|Xen)\s+<(claire|clifford)@(symbioticeda.com|clifford.at|yosyshq.com)>/Claire Xenia Wolf <claire@yosyshq.com>/gi;
s/((Nina|Nak|N\.)\s+)+Engelhardt\s+<nak@(symbioticeda.com|yosyshq.com)>/N. Engelhardt <nak@yosyshq.com>/gi;
s/((David)\s+)+Shah\s+<(dave|david)@(symbioticeda.com|yosyshq.com|ds0.me)>/David Shah <dave@ds0.me>/gi;
s/((Miodrag)\s+)+Milanovic\s+<(miodrag|micko)@(symbioticeda.com|yosyshq.com)>/Miodrag Milanovic <micko@yosyshq.com>/gi;
s,https?://www.clifford.at/yosys/,http://yosyshq.net/yosys/,g;
 2021-06-08 00:39:36 +02:00
Marcelina Kościelnicka
4d9105ccb0 wreduce: Refactor to use FfInitVals. 2020-07-24 11:22:31 +02:00
Marcelina Kościelnicka
119f79d8b9 Add support for new FF types in some opt passes. 2020-06-23 15:40:02 +02:00
whitequark
7191dd16f9 Use C++11 final/override keywords. 2020-06-18 23:34:52 +00:00
Xiretza
edd8ff2c07
Add flooring division operator 
The $div and $mod cells use truncating division semantics (rounding
towards 0), as defined by e.g. Verilog. Another rounding mode, flooring
(rounding towards negative infinity), can be used in e.g. VHDL. The
new $divfloor cell provides this flooring division.

This commit also fixes the handling of $div in opt_expr, which was
previously optimized as if it was $divfloor.
 2020-05-28 22:59:04 +02:00
Xiretza
17163cf43a
Add flooring modulo operator 
The $div and $mod cells use truncating division semantics (rounding
towards 0), as defined by e.g. Verilog. Another rounding mode, flooring
(rounding towards negative infinity), can be used in e.g. VHDL. The
new $modfloor cell provides this flooring modulo (also known as "remainder"
in several languages, but this name is ambiguous).

This commit also fixes the handling of $mod in opt_expr, which was
previously optimized as if it was $modfloor.
 2020-05-28 22:59:03 +02:00
Eddie Hung
956ecd48f7 kernel: big fat patch to use more ID::*, otherwise ID(*) 2020-04-02 09:51:32 -07:00
Eddie Hung
432a09af80 kernel: SigSpec use more const& + overloads to prevent implicit SigSpec 2020-03-13 08:17:39 -07:00
David Shah
f5804a84fd wreduce: Don't trim zeros or sext when not matching ARST_VALUE 
Signed-off-by: David Shah <dave@ds0.me>
 2019-11-14 18:43:15 +00:00
Eddie Hung
29e14e674e Remove using namespace RTLIL; 2019-08-16 19:36:45 +00:00
Eddie Hung
eae5a6b12c Use ID::keep more liberally too 2019-08-15 14:51:12 -07:00
Eddie Hung
52355f5185 Use more ID::{A,B,Y,blackbox,whitebox} 2019-08-15 14:50:10 -07:00
Clifford Wolf
6995914f3f Use ID() macro in all of passes/opt/ 
This was obtained by running the following SED command in passes/opt/
and then using "meld foo.cc foo.cc.orig" to manually fix all resulting
compiler errors.

sed -i.orig -r 's/"\\\\([a-zA-Z0-9_]+)"/ID(\1)/g; s/"(\$[a-zA-Z0-9_]+)"/ID(\1)/g;' *.cc

Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-08-11 11:39:46 +02:00
Eddie Hung
bfc7164af7 Move LSB-trimming functionality from wreduce to opt_expr 2019-08-06 15:25:50 -07:00
Eddie Hung
09beeee38a Try and fix again 2019-07-19 14:40:57 -07:00
Eddie Hung
cb0fd05215 Do not access beyond bounds 2019-07-19 13:58:50 -07:00
Eddie Hung
3a87dc3524 Wrap A and B in sigmap 2019-07-19 13:23:07 -07:00
Eddie Hung
31b0002e8c Remove "top" from message 2019-07-19 13:20:45 -07:00
Eddie Hung
bcd8027182 Also optimise MSB of $sub 2019-07-19 13:11:48 -07:00
Eddie Hung
fc0e36d1c0 wreduce for $sub 2019-07-19 12:50:21 -07:00
Eddie Hung
713337255e
Revert "Add "synth -keepdc" option" 2019-07-09 10:14:23 -07:00
Eddie Hung
37b58f4324 Clarify 'wreduce -keepdc' doc 2019-07-08 19:15:07 -07:00
Clifford Wolf
c4b8575f43 Add "wreduce -keepdc", fixes #1016 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-05-20 15:36:13 +02:00
Clifford Wolf
373b236108
Merge pull request #969 from YosysHQ/clifford/pmgenstuff 
Improve pmgen, Add "peepopt" pass with shift-mul pattern
 2019-05-03 20:39:50 +02:00
Clifford Wolf
32ff37bb5a Fix segfault in wreduce 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-30 22:20:45 +02:00
Clifford Wolf
b515fd2d25 Add peepopt_muldiv, fixes #930 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-30 11:25:15 +02:00
Clifford Wolf
c84cdc711c Remove some left-over log_dump() 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-04-23 17:55:41 +02:00
Clifford Wolf
7cfd83c341 Trim init attributes when resizing FFs in "wreduce", fixes #887 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-03-22 11:42:19 +01:00
Clifford Wolf
e847690bda Fix multiple issues in wreduce FF handling, fixes #835 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-28 17:24:46 -08:00
Clifford Wolf
cd722f26a5 Cleanups in ARST handling in wreduce 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-24 20:34:23 +01:00
Keith Rothman
25680f6a07 Fix WREDUCE on FF not fixing ARST_VALUE parameter. 
Adds test case that fails without code change.

Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2019-02-22 10:30:42 -08:00
Clifford Wolf
246391200e Add FF support to wreduce 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-02-20 16:36:42 +01:00
Clifford Wolf
0a840dd883 Fix handling of (* keep *) wires in wreduce 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-12-31 16:37:40 +01:00
Henner Zeller
3aa4484a3c Consistent use of 'override' for virtual methods in derived classes. 
o Not all derived methods were marked 'override', but it is a great
  feature of C++11 that we should make use of.
o While at it: touched header files got a -*- c++ -*- for emacs to
  provide support for that language.
o use YS_OVERRIDE for all override keywords (though we should probably
  use the plain keyword going forward now that C++11 is established)
 2018-07-20 23:51:06 -07:00
Clifford Wolf
d77a914683 Added "wreduce -memx" 2016-08-20 12:52:50 +02:00
Clifford Wolf
f6629b9c29 Optimize memory address port width in wreduce and memory_collect, not verilog front-end 2016-08-19 18:38:25 +02:00
Clifford Wolf
0bc95f1e04 Added "yosys -D" feature 2016-04-21 23:28:37 +02:00
Clifford Wolf
ccdbf41be6 Improvements in wreduce 2015-10-31 13:39:30 +01:00
Clifford Wolf
207736b4ee Import more std:: stuff into Yosys namespace 2015-10-25 19:30:49 +01:00