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84 Commits

Author SHA1 Message Date
Akash Levy 723ddd74cf Improve wreduce runtime 2026-02-19 01:03:26 -08:00
Akash Levy dee059bee8 Fix minor Yosys issues 2025-09-30 12:05:36 -07:00
Akash Levy 313c7e4b95 Fix wreduce using queueing algorithm 2025-09-29 20:28:55 -07:00
Akash Levy d36bc8231f Revert wreduce to initial state 2025-09-29 12:44:30 -07:00
Akash Levy ded986c510 Probably not fast but it works 2025-09-29 04:39:07 -07:00
Akash Levy b2f2d6d6e3 Actually fix wreduce 2025-09-29 04:16:18 -07:00
Akash Levy dfc8607a77 Fixups 2025-09-29 03:49:44 -07:00
Akash Levy 0b0c7bd19d Fix wreduce speed issue 2025-09-29 00:18:48 -07:00
Akash Levy ae2ed5e82a Fix wreduce speed more 2025-09-27 17:59:25 -07:00
Akash Levy f7dbfcb278 Fix wreduce speed issue 2025-09-26 07:55:37 -07:00
Akash Levy 60d969530b Bump to latest 2025-09-21 01:10:04 -07:00
Robert O'Callahan 5600eb2e5b Update passes/opt to avoid bits() 2025-09-16 03:17:23 +00:00
Akash Levy 41dfe4fc61 Run toposort in both directions for better results 2025-09-09 07:45:25 -07:00
Akash Levy eb4539f151 Smallfixes 2025-09-09 04:50:57 -07:00
Akash Levy b7a4ce8b42 Fix opt balance tree and wreduce 2025-09-09 04:32:15 -07:00
Akash Levy 1990c1fac5 Reduce pass verbosity 2025-05-13 20:42:47 -07:00
Akash Levy 9665a76876 Undo bad wreduce change 2025-04-22 03:40:34 -07:00
Akash Levy de375d6542 Accommodate reversion and fix wreduce naming 2025-04-07 07:35:39 -07:00
Akash Levy 276800c39b wreduce shifter signedness fix 2025-04-04 14:27:38 -07:00
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