Clifford Wolf
1bf8c2b823
Import initial pmux2shiftx from eddieh
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-04-20 00:38:25 +02:00
Clifford Wolf
7cfd83c341
Trim init attributes when resizing FFs in "wreduce", fixes #887
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-22 11:42:19 +01:00
Clifford Wolf
f806b95ed6
Improve handling of and-with-1 and or-with-0 in opt_expr, fixes #327
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-03-14 20:52:00 +01:00
Clifford Wolf
e847690bda
Fix multiple issues in wreduce FF handling, fixes #835
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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
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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.
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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
0e371109b0
Merge pull request #818 from YosysHQ/clifford/dffsrfix
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Fix opt_rmdff handling of $_DFFSR_???_ and $_DLATCHSR_???_, fixes #816
2019-02-21 18:58:44 +01:00
Clifford Wolf
2da4c9c8f0
Fix opt_rmdff handling of $_DFFSR_???_ and $_DLATCHSR_???_, fixes #816
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-21 13:49:45 +01:00
Clifford Wolf
246391200e
Add FF support to wreduce
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-02-20 16:36:42 +01:00
Clifford Wolf
8a63fc51d3
Bugfix in $memrd sharing
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2019-01-07 10:04:47 +01:00
Clifford Wolf
d98fe8ce1f
Merge pull request #775 from whitequark/opt_flowmap
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flowmap: new techmap pass
2019-01-03 17:03:18 +01:00
whitequark
07af772a72
flowmap: new techmap pass.
2019-01-03 14:28:19 +00:00
Clifford Wolf
0fc6e2bfcf
Merge pull request #770 from whitequark/opt_expr_cmp
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opt_expr: refactor and improve simplification of comparisons
2019-01-02 17:34:04 +01:00
whitequark
bf8db55ef3
opt_expr: improve simplification of comparisons with large constants.
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The idea behind this simplification is that a N-bit signal X being
compared with an M-bit constant where M>N and the constant has Nth
or higher bit set, it either always succeeds or always fails.
However, the existing implementation only worked with one-hot signals
for some reason. It also printed incorrect messages.
This commit adjusts the simplification to have as much power as
possible, and fixes other bugs.
2019-01-02 15:45:28 +00:00
Clifford Wolf
2e606b1802
Merge pull request #773 from whitequark/opt_lut_elim_fixes
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opt_lut: elimination fixes
2019-01-02 15:45:29 +01:00
whitequark
efa278e232
Fix typographical and grammatical errors and inconsistencies.
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The initial list of hits was generated with the codespell command
below, and each hit was evaluated and fixed manually while taking
context into consideration.
DIRS="kernel/ frontends/ backends/ passes/ techlibs/"
DIRS="${DIRS} libs/ezsat/ libs/subcircuit"
codespell $DIRS -S *.o -L upto,iff,thru,synopsys,uint
More hits were found by looking through comments and strings manually.
2019-01-02 13:12:17 +00:00
whitequark
c55dfb8369
opt_lut: reflect changes in sigmap.
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Otherwise, some LUTs will be missed during elimination.
2019-01-02 10:21:58 +00:00
whitequark
06143ab33f
opt_lut: use a worklist, and revisit cells affected by elimination.
2019-01-02 09:36:32 +00:00
whitequark
f7363ac508
opt_lut: count eliminated cells, and set opt.did_something for them.
2019-01-02 09:14:43 +00:00
whitequark
4fd458290c
opt_expr: refactor simplification of unsigned X<onehot and X>=onehot. NFCI.
2019-01-02 05:11:29 +00:00
whitequark
9e9846a6ea
opt_expr: refactor simplification of signed X>=0 and X<0. NFCI.
2019-01-02 03:01:25 +00:00
whitequark
8e53d2e0bf
opt_expr: simplify any unsigned comparisons with all-0 and all-1.
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Before this commit, only unsigned comparisons with all-0 would be
simplified. This commit also makes the code handling such comparisons
to be more rigorous and not abort on unexpected input.
2019-01-02 02:45:49 +00:00
whitequark
42c356c49c
opt_lut: eliminate LUTs evaluating to constants or inputs.
2018-12-31 23:55:40 +00:00
Clifford Wolf
0a840dd883
Fix handling of (* keep *) wires in wreduce
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-12-31 16:37:40 +01:00
Clifford Wolf
556341a77f
Merge pull request #720 from whitequark/master
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lut2mux: handle 1-bit INIT constant in $lut cells
2018-12-16 15:27:23 +01:00
whitequark
7ec740b7ad
opt_lut: leave intact LUTs with cascade feeding module outputs.
2018-12-07 17:13:52 +00:00
whitequark
9eb03d458d
opt_lut: show original truth table for both cells.
2018-12-07 17:04:41 +00:00
whitequark
a8ab722824
opt_lut: add -limit option, for debugging misoptimizations.
2018-12-07 16:36:26 +00:00
Clifford Wolf
643f858acf
Bugfix in opt_expr handling of a<0 and a>=0
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-12-06 07:29:21 +01:00
whitequark
88217d0157
opt_lut: simplify type conversion. NFC.
2018-12-05 19:12:02 +00:00
Clifford Wolf
2d98db73e3
Rename opt_lut.cpp to opt_lut.cc
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-12-05 18:03:58 +01:00
whitequark
45cb6200af
opt_lut: add -dlogic, to avoid disturbing logic such as carry chains.
2018-12-05 16:30:37 +00:00
whitequark
e603484070
opt_lut: always prefer to eliminate 1-LUTs.
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These are always either buffers or inverters, and keeping the larger
LUT preserves more source-level information about the design.
2018-12-05 16:30:37 +00:00
whitequark
59eea0183f
opt_lut: collect and display statistics.
2018-12-05 16:30:37 +00:00
whitequark
e54c7e951c
opt_lut: refactor to use a worker. NFC.
2018-12-05 16:30:37 +00:00
whitequark
9e072ec21f
opt_lut: new pass, to combine LUTs for tighter packing.
2018-12-05 16:30:37 +00:00
Clifford Wolf
ab97eddee9
Add iteration limit to "opt_muxtree"
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-11-20 17:56:47 +01:00
Henner Zeller
3aa4484a3c
Consistent use of 'override' for virtual methods in derived classes.
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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
587056447e
Add optimization of tristate buffer with constant control input
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-05-12 15:18:27 +02:00
Clifford Wolf
fba499b866
Fix opt_rmdff handling of $dlatchsr
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-02-26 11:46:05 +01:00
Clifford Wolf
eb67a7532b
Add $allconst and $allseq cell types
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
2018-02-23 13:14:47 +01:00
Clifford Wolf
ca2adc30c9
Add warnings for driver-driver conflicts between FFs (and other cells) and constants
2017-12-12 17:13:27 +01:00
Clifford Wolf
c238f45ecf
Fix memory corruption bug in opt_rmdff
2017-10-26 18:02:15 +02:00
Clifford Wolf
1e502ef5a0
Fix typo in opt_clean log message
2017-10-26 18:01:48 +02:00
Kaj Tuomi
e558b3284b
Fix input vector for reduce cells. Infinite loop fixed.
2017-10-17 09:58:01 +03:00
Clifford Wolf
716dbc9274
Revert 90be0d8
as it causes endless loops for some designs
2017-10-14 11:57:25 +02:00
Kaj Tuomi
90be0d800b
Fix input vector for reduce cells.
2017-10-12 13:05:10 +03:00
Andrew Zonenberg
66e8986ae7
Minor changes to opt_demorgan requested during code review
2017-09-14 10:35:25 -07:00
Andrew Zonenberg
6da5d36968
Initial version of opt_demorgan is functioning for AND/OR gates. Not the prettiest results for bus inputs, but this can be improved
2017-09-12 18:47:46 -07:00
Clifford Wolf
68c42f3a19
Don't track , ... contradictions through x/z-bits
2017-08-25 16:18:17 +02:00
Clifford Wolf
db6d78a186
Add removing of redundant pairs of bits in ==, ===, !=, and !== to opt_expr
2017-08-25 16:02:15 +02:00
Clifford Wolf
88983f5012
Mostly coding style related fixes in rmports pass
2017-08-15 11:32:35 +02:00
Andrew Zonenberg
15e41d6363
rmports: Now remove ports from cell instances if we optimized them out of that cell
2017-08-14 11:44:05 -07:00
Andrew Zonenberg
0ee27d0226
ProcessModule is no longer virtual (why was it in the first place?)
2017-08-14 11:18:09 -07:00
Andrew Zonenberg
bd2ac68769
rmports now works on all modules in the design, not just the top.
2017-08-14 11:16:44 -07:00
Andrew Zonenberg
d5e5bbad86
Updated Makefile to reflect opt_rmports being renamed to rmports
2017-08-14 11:04:56 -07:00
Andrew Zonenberg
1a6a23f91a
Renamed opt_rmports pass to rmports
2017-08-14 11:00:45 -07:00
Andrew Zonenberg
1bb150c231
Improved handling of constant connections in opt_rmports
2017-08-14 10:28:19 -07:00
Andrew Zonenberg
2877d5e504
Fixed handling of cell ports that aren't wires
2017-08-14 10:28:16 -07:00
Andrew Zonenberg
3dd7f42e2b
opt_rmports: Fixed incorrect handling of multi-bit nets
2017-08-14 10:28:11 -07:00
Andrew Zonenberg
66aac06eee
Removed commented out debug code
2017-08-14 10:28:04 -07:00
Andrew Zonenberg
cca3cb5fbb
Added opt_rmports pass (remove unconnected ports from top-level modules)
2017-08-14 10:27:59 -07:00
Clifford Wolf
007f29b9c2
Add support for set-reset cell variants to opt_rmdff
2017-08-09 13:29:52 +02:00
Clifford Wolf
c4a7958f70
Add handling of constant reset signals to opt_rmdff
2017-08-06 13:27:18 +02:00
Clifford Wolf
e7d1277a2c
Add consolidation of init attributes to opt_clean, some opt_clean log fixes
2017-07-29 00:10:33 +02:00
Clifford Wolf
649bb9374f
Add "opt_expr -fine" feature to remove neutral bits from reduce and logic operators
2017-07-26 18:28:55 +02:00
Salvador E. Tropea
ca23554528
Excluded $_TBUF_ from opt_merge pass
2017-07-03 13:21:20 -03:00
Clifford Wolf
0a02cdb93b
Fix and_or_buffer optimization in opt_expr for signed operators
2017-07-01 16:05:26 +02:00
Clifford Wolf
18c030a8c9
Add $tribuf to opt_merge blacklist
2017-06-30 17:44:44 +02:00
Larry Doolittle
2021ddecb3
Squelch trailing whitespace
2017-04-12 15:11:09 +02:00
Clifford Wolf
180d704568
Disable opt_merge for $anyseq and $anyconst
2017-02-28 22:17:00 +01:00
Clifford Wolf
5f1d0b1024
Add $live and $fair cell types, add support for s_eventually keyword
2017-02-25 10:36:39 +01:00
Clifford Wolf
95dae6d416
Fixed some "used uninitialized" warnings in opt_expr
2017-02-11 10:50:48 +01:00
Clifford Wolf
a5bfeb9e07
Add optimization of (a && 1'b1) and (a || 1'b0)
2017-02-11 10:05:00 +01:00
C-Elegans
94b272077d
Fix issue #306 , "Bug in opt -full"
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Add check for whether the high bit in the constant expression is greater
than the width of the variable, and optimizes that to a constant 1 or
0
2017-02-10 10:38:02 -05:00
Clifford Wolf
e6cc67b46f
Fix handling of init attributes with strange width
2017-02-09 16:06:58 +01:00
Clifford Wolf
3928482a3c
Add $cover cell type and SVA cover() support
2017-02-04 14:14:26 +01:00
Clifford Wolf
ffbe8d41f3
Fix indenting and log messages in code merged from opt_compare_pr
2017-01-31 16:20:56 +01:00
Clifford Wolf
19a980277f
Merge branch 'opt_compare_pr' of https://github.com/C-Elegans/yosys into C-Elegans-opt_compare_pr
2017-01-31 15:54:41 +01:00
Clifford Wolf
7481ba4750
Improve opt_rmdff support for $dlatch cells
2017-01-31 10:15:04 +01:00
C-Elegans
a94c3694d7
Refactor and generalize the comparision optimization
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Generalizes the optimization to:
a < C,
a >= C,
C > a,
C <= a
2017-01-30 17:52:16 -05:00
C-Elegans
2fa0fd4a37
Do not use b.as_int() in calculation of bit set
2017-01-21 12:58:26 -05:00
C-Elegans
84f9cd0025
Optimize compares to powers of 2
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Remove opt_compare and put comparison pass in opt_expr
assuming a [7:0] is unsigned
a >= (1<<x) becomes |a[7:x]
a < (1<<x) becomes !a[7:x]
Additionally:
a >= 0 becomes constant true,
a < 0 becomes constant false
delete opt_compare.cc
revert opt.cc to commit b7cfb7dbd
(remove opt_compare step)
2017-01-16 13:45:50 -05:00
C-Elegans
943389cdd5
Fix issue #269 , optimize signed compare with 0
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add opt_compare pass and add it to opt
for a < 0:
if a is signed, replace with a[max_bit-1]
for a >= 0:
if a is signed, replace with ~a[max_bit-1]
2017-01-15 13:38:29 -05:00
Clifford Wolf
2ef454c3f5
Added opt_rmdff support for $ff cells
2016-10-14 13:02:36 +02:00
Clifford Wolf
ed519f578e
Added "opt_rmdff -keepdc"
2016-09-30 17:02:38 +02:00
Clifford Wolf
4ea7054b56
Improved init spec handling in opt_rmdff, modernized the code a bit
2016-08-30 01:34:04 +02:00
Clifford Wolf
eae390ae17
Removed $predict again
2016-08-28 21:35:33 +02:00
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
d7763634b6
After reading the SV spec, using non-standard predict() instead of expect()
2016-07-21 13:34:33 +02:00
Clifford Wolf
721f1f5ecf
Added basic support for $expect cells
2016-07-13 16:56:17 +02:00
Clifford Wolf
11f7b8a2a1
Added opt_expr support for div/mod by power-of-two
2016-05-29 12:17:36 +02:00
Clifford Wolf
0d2923cccd
Connections between inputs and inouts are driven by the input
2016-04-26 19:49:05 +02:00
Clifford Wolf
0bc95f1e04
Added "yosys -D" feature
2016-04-21 23:28:37 +02:00
Clifford Wolf
1565d1af69
Fixed performance bug in "share" pass
2016-04-21 19:47:25 +02:00
Clifford Wolf
f38ca3e18f
Improvements in opt_expr
2016-04-21 14:23:04 +02:00
Clifford Wolf
6cafd08ac1
Improved opt_merge support for $pmux cells
2016-03-31 09:58:55 +02:00
Clifford Wolf
e2f6d61c00
Typo fixes in opt_expr and opt_merge
2016-03-31 09:56:56 +02:00
Clifford Wolf
ec93680bd5
Renamed opt_share to opt_merge
2016-03-31 08:52:49 +02:00
Clifford Wolf
1d0f0d668a
Renamed opt_const to opt_expr
2016-03-31 08:46:56 +02:00
Andrew Zonenberg
dd7204c0bd
Fixed typo in log message
2016-03-30 20:30:03 -07:00
Clifford Wolf
d6592d5b99
Use alphanumerical order instead of idstring idx in opt_clean compare_signals()
2016-02-02 09:16:18 +01:00
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
Clifford Wolf
2a0f577f83
Fixed handling of driver-driver conflicts in wreduce
2015-10-24 13:44:35 +02:00
Clifford Wolf
1d83854d84
Bugfixes in handling of "keep" attribute on wires
2015-10-15 14:57:28 +02:00
Clifford Wolf
82028c42e0
Added wreduce $mul support and fixed signed $mul opt_const bug
2015-09-25 17:27:06 +02:00
Clifford Wolf
51e1295d79
Added detection of "mux inverter" chains in opt_const
2015-09-18 11:55:31 +02:00
Clifford Wolf
e7c018e5d1
Fixed sharing of $memrd cells
2015-09-12 16:01:20 +02:00
Clifford Wolf
b10ea0550d
gcc-4.6 build fixes
2015-09-01 12:51:23 +02:00
Clifford Wolf
f43815054e
Properly clean up unused "init" attributes
2015-08-18 13:50:15 +02:00
Clifford Wolf
ae09c89f62
Fixed opt_clean handling of inout ports
2015-08-16 09:50:17 +02:00
Clifford Wolf
84bf862f7c
Spell check (by Larry Doolittle)
2015-08-14 10:56:05 +02:00
Clifford Wolf
c43f38c81b
Improved handling of "keep" attributes in hierarchical designs in opt_clean
2015-08-12 14:10:14 +02:00
Clifford Wolf
667b015018
Merge pull request #70 from gaomy3832/bugfix
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Remove unused blackbox modules in opt_clean.
2015-08-12 08:45:04 +02:00
Mingyu Gao
cbda56d178
Remove unused blackbox modules in opt_clean.
2015-08-11 09:51:08 -07:00
Mingyu Gao
8c4c62f3e1
Bugfix for cell hash cache option in opt_share.
2015-08-11 11:40:23 +02:00
Clifford Wolf
2185125760
Added missing ct_all setup to opt_clean
2015-08-11 07:54:32 +02:00
Mingyu Gao
021b4a2436
Bugfix for cell hash cache option in opt_share.
2015-08-10 13:01:44 -07:00
Clifford Wolf
2a613b1b66
Some cleanups in opt_rmdff
2015-07-25 12:09:57 +02:00
Clifford Wolf
914ae3401e
Improved $adff simplification
2015-07-24 14:12:50 +02:00
Clifford Wolf
6c84341f22
Fixed trailing whitespaces
2015-07-02 11:14:30 +02:00
Clifford Wolf
053058d781
Added opt_const -clkinv
2015-07-01 10:49:21 +02:00
Clifford Wolf
08f9b38a9c
Added opt_share -share_all
2015-05-31 14:24:34 +02:00
Clifford Wolf
4b6221478e
Added simple $dlatch support to opt_rmdff
2015-05-23 09:45:48 +02:00
Clifford Wolf
e122c2644e
preserve used $-wires with init attribute in opt_clean
2015-05-22 08:20:29 +02:00
Clifford Wolf
f483dce7c2
Added $eq/$neq -> $logic_not/$reduce_bool optimization
2015-04-29 07:28:15 +02:00
Clifford Wolf
9041f34233
Improved handling of init values in opt_rmdff
...
based on a patch by Mingyu Gao, user gaomy3832 on github
2015-04-18 08:04:31 +02:00
Clifford Wolf
e305d85807
Added handling of bool-output cells to "wreduce"
2015-04-13 19:27:49 +02:00
Clifford Wolf
1f1deda888
Added non-std verilog assume() statement
2015-02-26 18:47:39 +01:00
Clifford Wolf
9ae21263f0
Some cleanups in "clean"
2015-02-24 22:31:30 +01:00
Clifford Wolf
4e6ca7760f
Replaced ezDefaultSAT with ezSatPtr
2015-02-21 12:15:41 +01:00
Clifford Wolf
024aa559e2
wreduce help typo fix
2015-02-17 13:02:16 +01:00
Clifford Wolf
0748ef638d
Bugfix in wreduce
2015-02-16 09:08:00 +01:00
Clifford Wolf
910556560f
Added $meminit cell type
2015-02-14 10:23:03 +01:00
Clifford Wolf
87819c62fa
Less aggressive "share" defaults
2015-02-10 20:51:37 +01:00
Clifford Wolf
8805c24640
Fixed opt_clean performance bug
2015-02-04 16:34:06 +01:00
Clifford Wolf
a8f4a099b5
Using design->selected_modules() in opt_*
2015-02-03 23:45:01 +01:00
Clifford Wolf
8dfa105255
Bugfix in opt_const $eq -> buffer code
2015-01-31 23:25:32 +01:00
Clifford Wolf
2a9ad48eb6
Added ENABLE_NDEBUG makefile options
2015-01-24 12:16:46 +01:00
Clifford Wolf
43951099cf
Added dict/pool.sort()
2015-01-24 00:13:27 +01:00
Clifford Wolf
74e1de1fac
Fixed opt_muxtree performance bug
2015-01-21 16:44:07 +01:00
Clifford Wolf
f630868bc9
Improvements in opt_muxtree
2015-01-18 12:57:36 +01:00
Clifford Wolf
d3b35017f8
More opt_muxtree cleanups
2015-01-18 12:13:18 +01:00
Clifford Wolf
61192514e3
Various cleanups and improvements in opt_muxtree
2015-01-18 11:17:56 +01:00
Clifford Wolf
a95c229e12
Fixed a bug in opt_muxtree for "mux forests"
2015-01-17 13:56:53 +01:00
Clifford Wolf
3628ca989c
Improved opt_muxtree
2015-01-17 12:05:19 +01:00
Clifford Wolf
8426884b40
Re-enabled mux->and/or transform (and fixed lm32 in yosys-bigsim)
2015-01-13 13:20:09 +01:00
Clifford Wolf
fd787609aa
disabled problematic mux -> and/or transform
2015-01-07 23:25:51 +01:00
Clifford Wolf
462b22f44f
dict<> ref vs insert bugfix
2015-01-06 00:16:44 +01:00
Clifford Wolf
11c3b81c08
typo fix for "opt -fast"
2014-12-30 22:35:38 +01:00
Clifford Wolf
c64b1de11d
Fixed build with SMALL=1
2014-12-30 11:41:24 +01:00
Clifford Wolf
29a555ec7e
Added statehash to ezSAT
2014-12-29 17:10:37 +01:00
Clifford Wolf
3ff0d04555
Cleanups in opt_clean
2014-12-29 05:11:06 +01:00
Clifford Wolf
7d843adef9
dict/pool changes in opt_clean
2014-12-29 04:06:52 +01:00
Clifford Wolf
cfe0817697
Converting "share" to dict<> and pool<> complete
2014-12-29 02:01:42 +01:00
Clifford Wolf
9ff3a9f30d
Switched most of "share" to dict<> and pool<>
2014-12-29 00:42:48 +01:00
Clifford Wolf
445686cba3
using dict and pool in opt_reduce
2014-12-28 21:27:05 +01:00
Clifford Wolf
951c72ba52
bugfix in opt_share
2014-12-28 21:26:36 +01:00
Clifford Wolf
3da46d3437
Renamed hashmap.h to hashlib.h, some related improvements
2014-12-28 17:51:16 +01:00
Clifford Wolf
6c8b0a5fd1
More dict/pool related changes
2014-12-27 12:02:57 +01:00
Clifford Wolf
66ab88d7b0
More hashtable finetuning
2014-12-27 03:04:50 +01:00
Clifford Wolf
ec4751e55c
Replaced std::unordered_set (nodict) with Yosys::pool
2014-12-26 21:59:41 +01:00
Clifford Wolf
9e6fb0b02c
Replaced std::unordered_map as implementation for Yosys::dict
2014-12-26 21:35:22 +01:00
Clifford Wolf
a6c96b986b
Added Yosys::{dict,nodict,vector} container types
2014-12-26 10:53:21 +01:00
Clifford Wolf
edb3c9d0c4
Renamed extend() to extend_xx(), changed most users to extend_u0()
2014-12-24 09:51:17 +01:00
Clifford Wolf
546e8b5fe7
Improved TopoSort determinism
2014-11-07 15:21:03 +01:00
Clifford Wolf
ab28491f27
Added "opt -full" alias for all more aggressive optimizations
2014-10-31 03:36:51 +01:00
Clifford Wolf
84ffe04075
Fixed various VS warnings
2014-10-18 15:20:38 +02:00
Clifford Wolf
18cb8b4636
Don't be too smart with $dff cells with "init" attribute on out signal
2014-10-16 11:49:31 +02:00
Clifford Wolf
66eb254fc2
Some cleanups in opt_clean
2014-10-16 11:46:57 +02:00
William Speirs
6433203b39
Wrapped init in std::set constructor
2014-10-15 00:58:05 +02:00
Clifford Wolf
35fbc0b35f
Do not the 'z' modifier in format string (another win32 fix)
2014-10-11 11:42:08 +02:00
Clifford Wolf
4569a747f8
Renamed SIZE() to GetSize() because of name collision on Win32
2014-10-10 17:07:24 +02:00
Clifford Wolf
c5c7066ea6
sat encoding for exclusive $pmux ctrl inputs in "share" pass
2014-10-03 19:01:24 +02:00
Clifford Wolf
3e4b0cac8d
added resource sharing of $macc cells
2014-10-03 12:58:40 +02:00
Clifford Wolf
c3e779a65f
Added $_BUF_ cell type
2014-10-03 10:12:28 +02:00
Clifford Wolf
600c6cb013
remove buffers in opt_clean
2014-10-03 10:04:15 +02:00
Clifford Wolf
7019bc00e4
resource sharing of $alu cells
2014-10-03 09:55:50 +02:00
Clifford Wolf
0b8cfbc6fd
Added support for "keep" on modules
2014-09-29 12:51:54 +02:00
Clifford Wolf
f9a307a50b
namespace Yosys
2014-09-27 16:17:53 +02:00
Clifford Wolf
13117bb346
Re-enabled assert for new logic loops in "share" pass
2014-09-21 19:44:08 +02:00
Clifford Wolf
96e821dc6c
Various improvements regarding logic loops in "share" results
2014-09-21 19:36:56 +02:00
Clifford Wolf
d6e2ace95b
Logic loop bugfix for "share" pass
2014-09-21 15:13:44 +02:00
Clifford Wolf
b28be0759f
Added "share -limit"
2014-09-21 15:13:06 +02:00
Clifford Wolf
a6c08b40fe
Still loop bug in "share": changed assert to warning
2014-09-21 14:51:07 +02:00
Clifford Wolf
8d60754aef
Do not introduce new logic loops in "share"
2014-09-21 13:52:39 +02:00
Clifford Wolf
edf11c635a
Assert on new logic loops in "share" pass
2014-09-21 12:57:33 +02:00
Clifford Wolf
2cbdbaad1f
Fixed wreduce $shiftx handling
2014-09-15 11:29:09 +02:00
Clifford Wolf
aab0e3bf70
Cleanup in wreduce
2014-09-14 10:01:30 +02:00
Ruben Undheim
79cbf9067c
Corrected spelling mistakes found by lintian
2014-09-06 08:47:06 +02:00
Clifford Wolf
f5a40e7043
Fixed "opt_const -fine" for $pos cells
2014-09-04 08:55:58 +02:00
Clifford Wolf
8927aa6148
Removed $bu0 cell type
2014-09-04 02:07:52 +02:00
Clifford Wolf
d5148f2e01
Moved "share" and "wreduce" to passes/opt/
2014-09-01 11:45:26 +02:00
Clifford Wolf
e07698818d
Using std::vector<RTLIL::State> instead of RTLIL::Const for RTLIL::SigChunk::data
2014-09-01 11:36:02 +02:00
Clifford Wolf
2a1b08aeb3
Added design->scratchpad
2014-08-30 19:37:12 +02:00
Clifford Wolf
7bbbe3580d
Optimize shift ops with constant rhs in opt_const
2014-08-24 17:08:43 +02:00
Clifford Wolf
641501203c
Added some additional log messages to opt_const
2014-08-24 17:08:43 +02:00
Clifford Wolf
410d043dd8
Renamed toposort.h to utils.h
2014-08-17 00:55:35 +02:00
Clifford Wolf
eb17fbade5
Added "opt -fast"
2014-08-16 15:34:15 +02:00
Clifford Wolf
f092b50148
Renamed $_INV_ cell type to $_NOT_
2014-08-15 14:11:40 +02:00
Clifford Wolf
ca87116449
More idstring sort_by_* helpers and fixed tpl ordering in techmap
2014-08-15 02:40:46 +02:00
Clifford Wolf
13f2f36884
RIP $safe_pmux
2014-08-14 11:39:46 +02:00
Clifford Wolf
8fd1c269ac
Fixed a performance bug in opt_reduce
2014-08-02 15:12:16 +02:00
Clifford Wolf
b9bd22b8c8
More cleanups related to RTLIL::IdString usage
2014-08-02 13:19:57 +02:00
Clifford Wolf
bd74ed7da4
Replaced sha1 implementation
2014-08-01 19:01:10 +02:00
Clifford Wolf
cdae8abe16
Renamed port access function on RTLIL::Cell, added param access functions
2014-07-31 16:38:54 +02:00
Clifford Wolf
397b00252d
Added $shift and $shiftx cell types (needed for correct part select behavior)
2014-07-29 16:35:13 +02:00
Clifford Wolf
7bd2d1064f
Using log_assert() instead of assert()
2014-07-28 11:27:48 +02:00
Clifford Wolf
0c86d6106c
Added SigPool::check(bit)
2014-07-27 15:38:02 +02:00
Clifford Wolf
77a1462f2d
Fixed bug in opt_clean
2014-07-27 15:13:29 +02:00
Clifford Wolf
d07a871d35
Improved performance of opt_const on large modules
2014-07-27 14:50:25 +02:00
Clifford Wolf
dbb3556e3f
Fixed a bug in opt_clean and some RTLIL API usage cleanups
2014-07-27 13:19:05 +02:00
Clifford Wolf
49f72421d5
Using new obj iterator API in a few places
2014-07-27 11:32:42 +02:00
Clifford Wolf
10e5791c5e
Refactoring: Renamed RTLIL::Design::modules to modules_
2014-07-27 11:18:30 +02:00
Clifford Wolf
4c4b602156
Refactoring: Renamed RTLIL::Module::cells to cells_
2014-07-27 01:51:45 +02:00
Clifford Wolf
f9946232ad
Refactoring: Renamed RTLIL::Module::wires to wires_
2014-07-27 01:49:51 +02:00
Clifford Wolf
946ddff9ce
Changed a lot of code to the new RTLIL::Wire constructors
2014-07-26 20:12:50 +02:00
Clifford Wolf
3f4e3ca8ad
More RTLIL::Cell API usage cleanups
2014-07-26 16:14:02 +02:00
Clifford Wolf
97a59851a6
Added RTLIL::Cell::has(portname)
2014-07-26 16:11:28 +02:00
Clifford Wolf
f8fdc47d33
Manual fixes for new cell connections API
2014-07-26 15:58:23 +02:00
Clifford Wolf
b7dda72302
Changed users of cell->connections_ to the new API (sed command)
...
git grep -l 'connections_' | xargs sed -i -r -e '
s/(->|\.)connections_\["([^"]*)"\] = (.*);/\1set("\2", \3);/g;
s/(->|\.)connections_\["([^"]*)"\]/\1get("\2")/g;
s/(->|\.)connections_.at\("([^"]*)"\)/\1get("\2")/g;
s/(->|\.)connections_.push_back/\1connect/g;
s/(->|\.)connections_/\1connections()/g;'
2014-07-26 15:58:23 +02:00
Clifford Wolf
cc4f10883b
Renamed RTLIL::{Module,Cell}::connections to connections_
2014-07-26 11:58:03 +02:00
Clifford Wolf
2bec47a404
Use only module->addCell() and module->remove() to create and delete cells
2014-07-25 17:56:19 +02:00
Clifford Wolf
0520bfea89
Fixed memory corruption in "opt_reduce" pass
2014-07-25 12:49:51 +02:00
Clifford Wolf
6aa792c864
Replaced more old SigChunk programming patterns
2014-07-24 23:10:58 +02:00
Clifford Wolf
9962384d3e
Added cover() calls to opt_const
2014-07-24 20:47:18 +02:00
Clifford Wolf
c094c53de8
Removed RTLIL::SigSpec::optimize()
2014-07-23 20:32:28 +02:00
Clifford Wolf
a62c21c9c6
Removed RTLIL::SigSpec::expand() method
2014-07-23 19:34:51 +02:00
Clifford Wolf
ec923652e2
Refactoring {SigSpec|SigChunk}(RTLIL::Wire *wire, ..) constructor -- step 3/3
2014-07-23 09:52:55 +02:00
Clifford Wolf
a8d3a68971
Refactoring {SigSpec|SigChunk}(RTLIL::Wire *wire, ..) constructor -- step 2/3
2014-07-23 09:49:43 +02:00
Clifford Wolf
28b3fd05fa
SigSpec refactoring: change RTLIL::SigSpec::chunks() to be read-only, created interim RTLIL::SigSpec::chunks_rw()
2014-07-22 20:58:44 +02:00
Clifford Wolf
4b4048bc5f
SigSpec refactoring: using the accessor functions everywhere
2014-07-22 20:39:37 +02:00
Clifford Wolf
a233762a81
SigSpec refactoring: renamed chunks and width to __chunks and __width
2014-07-22 20:39:37 +02:00
Clifford Wolf
137dbf3cf7
Added "opt_const -keepdc"
2014-07-21 21:38:55 +02:00
Clifford Wolf
1873480ca5
Added mul to mux conversion to "opt_const -fine"
2014-07-21 17:19:50 +02:00
Clifford Wolf
1241a9fd50
Added "opt_const -fine" and "opt_reduce -fine"
2014-07-21 16:34:16 +02:00
Clifford Wolf
e035f1d886
Added opt_const support for simple identities
2014-07-21 14:41:02 +02:00
Clifford Wolf
309ae98246
Apply opt_reduce WR_EN opts to the whole mux tree driving the WR_EN port
2014-07-18 10:28:45 +02:00
Clifford Wolf
1b00861d0a
Improved opt_reduce handling of mem wr_en mux bits
2014-07-17 12:12:04 +02:00
Clifford Wolf
d678b6533d
improved opt_reduce for $mem/$memwr WR_EN multiplexers
2014-07-16 14:08:51 +02:00
Clifford Wolf
68c059565a
Fixed bug in opt_reduce (see vloghammer issue_044)
2014-05-12 12:45:47 +02:00
Clifford Wolf
9a34486bfb
Fixed performance problem in opt_mux with nets driven by many conflicting drivers
2014-03-19 10:05:01 +01:00
Clifford Wolf
9b9c3327cc
Fixed undef handling in opt_reduce
2014-03-06 14:18:34 +01:00
Clifford Wolf
9e99984336
Fixed const folding of $bu0 cells
2014-02-27 04:09:32 +01:00
Clifford Wolf
548519875b
Fixed bug (typo) in passes/opt/opt_const.cc
2014-02-22 17:07:22 +01:00
Clifford Wolf
28e14ee50a
Fixed handling of "keep" attribute on wires in opt_clean
2014-02-16 21:58:27 +01:00
Clifford Wolf
67effc9f5b
Fixed opt_const handling of double invert with non-1 output width
2014-02-15 13:16:08 +01:00
Clifford Wolf
82c98bbbe6
Added opt -purge (frontend to opt_clean -purge)
2014-02-08 14:21:34 +01:00
Clifford Wolf
922d1c9520
Only count non-trivial attributes when findinf master signal in opt_clean
2014-02-08 14:21:04 +01:00
Clifford Wolf
274bcef66c
Improved detection of primary wire for a signal in opt_clean
2014-02-07 23:50:17 +01:00
Clifford Wolf
594d52e0b6
Added opt_const -undriven
2014-02-06 15:49:03 +01:00
Clifford Wolf
99b9c56da1
Fixed detection of init attribute in opt_rmdff
2014-02-04 23:00:32 +01:00
Clifford Wolf
ecdf1f5577
Improved handling of reg init in opt_share and opt_rmdff
2014-02-04 12:02:47 +01:00
Clifford Wolf
de336d93b2
More opt_const -mux_bool features
2014-02-02 22:41:24 +01:00
Clifford Wolf
9d0b69edaa
Added opt_const -mux_bool
2014-02-02 22:11:08 +01:00
Clifford Wolf
bee4450c4c
Added support for inverter chains to opt_const
2014-02-02 21:46:42 +01:00
Clifford Wolf
83fa652820
Added constant-clock case to opt_rmdff
2014-02-02 21:09:08 +01:00
Clifford Wolf
1e67099b77
Added $assert cell
2014-01-19 14:03:40 +01:00
Clifford Wolf
2e370d5a2f
Added support for $adff with undef data inputs to opt_rmdff
2014-01-17 16:42:40 +01:00
Clifford Wolf
54275c61ee
Added "opt_const -mux_undef"
2014-01-14 11:10:29 +01:00
Clifford Wolf
bd39263796
Improved $_MUX_ handling in opt_const
2013-12-28 10:30:31 +01:00
Clifford Wolf
d81e3ed3ae
More conservastive $eq/$ne/$eqx/$nex opt_const code
2013-12-28 10:29:22 +01:00
Clifford Wolf
c9699fe76d
More $eq/$ne/$eqx/$nex fixes in opt_const
2013-12-27 15:18:14 +01:00
Clifford Wolf
7b02a44efb
Fixed/improved opt_const $eq/$ne/$eqx/$nex handling
2013-12-27 14:21:24 +01:00
Clifford Wolf
369bf81a70
Added support for non-const === and !== (for miter circuits)
2013-12-27 14:20:15 +01:00
Clifford Wolf
e5b974fa2a
Cleanups and bugfixes in response to new internal cell checker
2013-11-11 00:39:45 +01:00
Clifford Wolf
b04051a0e2
Fixed keep attribute on wires in opt_clean
2013-11-08 05:20:15 +01:00
Clifford Wolf
947bd9b96b
Renamed extend_un0() to extend_u0() and use it in genrtlil
2013-11-07 18:17:10 +01:00
Clifford Wolf
0e1661f84e
Fixed type of sign extension in opt_const $eq/$ne handling
2013-11-07 16:53:28 +01:00
Clifford Wolf
db42a8f89b
Fixed $eq/$ne bitwise optimization in opt_const
2013-11-07 11:54:59 +01:00
Clifford Wolf
1d34fd7608
Added support for "keep" attributes on wires
2013-11-05 15:52:29 +01:00
Clifford Wolf
e679a5d046
Fixed handling of boolean attributes (passes)
2013-10-24 11:37:54 +02:00
Clifford Wolf
8cc53ef72c
Only prefer connected signals iff they have public names
2013-10-17 22:10:55 +02:00
Clifford Wolf
c20571ca5e
Avoid re-arranging signals on register outputs
2013-10-17 20:48:40 +02:00
Clifford Wolf
f5c0ed6c79
Fixed detection of major wires in opt_clean
2013-10-17 02:41:59 +02:00
Clifford Wolf
96e7abad48
Added iopadmap pass
2013-10-16 16:16:06 +02:00
Clifford Wolf
a5836af172
Added "clean -purge" and ";;;" support
2013-08-11 13:59:14 +02:00
Clifford Wolf
080f0aac34
Added ";;" as shortcut for "; clean;"
2013-08-11 13:33:38 +02:00
Clifford Wolf
05483619f0
Some fixes to improve determinism
2013-08-09 12:42:32 +02:00
Clifford Wolf
8cd153612e
Added "clean" command (less verbose opt_clean)
2013-08-08 10:53:37 +02:00
Clifford Wolf
e729857647
Improved handling of private names in opt_clean and rename commands
2013-08-07 18:39:49 +02:00
Clifford Wolf
a9fefc6ce1
Bugfixes for empty signal vectors
2013-07-10 12:52:29 +02:00
Clifford Wolf
cf885c4a28
Added opt_clean -purge option
2013-07-07 12:59:30 +02:00
Clifford Wolf
0c0197cf45
Fixed handling of $eq and $ne in opt_const
2013-07-07 12:59:00 +02:00
Clifford Wolf
c32b918681
Renamed opt_rmunused to opt_clean
2013-06-05 07:07:31 +02:00
Clifford Wolf
ccd2a93439
Added log_abort() api
2013-05-24 12:32:06 +02:00
Clifford Wolf
f674150f1c
Fixed memory corruption bug in opt_rmunused
2013-05-23 13:19:28 +02:00
Clifford Wolf
3b8882ae49
Some improvements in opt_rmdff
2013-05-23 07:48:18 +02:00
Clifford Wolf
3ecc314238
Fixed to aggressive x-folding in opt_const
2013-05-17 14:55:18 +02:00
Clifford Wolf
c6198ea5a8
Fixed a bug in opt_const when optimizing 1-bit compares with constants
2013-04-13 21:18:24 +02:00
Clifford Wolf
88af5b6a16
Improved opt_share for reduce cells
2013-03-29 11:19:21 +01:00
Clifford Wolf
0d48b846ac
Improved opt_share for commutative standard cells
2013-03-29 11:01:26 +01:00
Clifford Wolf
9f10acb840
added optimizations for single-bit $eq/$ne with constant input to opt_const
2013-03-19 13:33:33 +01:00
Clifford Wolf
d8a7fa6b67
improved $mux optimization in opt_const
2013-03-19 13:32:39 +01:00
Clifford Wolf
b7fcf1fb9a
keep $mux and $_MUX_ optimizations separate in opt_const
2013-03-19 13:32:04 +01:00
Johann Glaser
69674652c5
added one more suggestion to optimize MUXes in pass "opt_const"
2013-03-18 22:06:16 +01:00
Johann Glaser
a4e2c887f1
also optimize single-bit "$mux" cells in pass "opt_const", added suggestions
...
for more optimizations
2013-03-18 22:05:21 +01:00
Johann Glaser
cd8008bda0
fixed typos
2013-03-18 07:28:31 +01:00
Clifford Wolf
55f927eecb
Fixed detection of public wires in opt_rmunused
2013-03-10 14:20:03 +01:00
Clifford Wolf
b96ffed69b
Automatically select new objects in abc and techmap passes
2013-03-08 09:16:25 +01:00
Clifford Wolf
45bfe26f5f
Minor hotfixes (mostly gcc build fixes)
2013-03-03 13:18:37 +01:00
Clifford Wolf
a338d1a082
Added help messages for fsm_* passes
2013-03-01 12:35:12 +01:00
Clifford Wolf
36954471a6
Added help messages for opt_* passes
2013-03-01 09:01:49 +01:00
Clifford Wolf
1bbc2b34c8
Added support for simple gates with one constant input to opt_const
2013-02-27 18:00:01 +01:00
Clifford Wolf
f28b6aff40
Implemented basic functionality of "extract" pass
2013-02-27 16:27:20 +01:00
Clifford Wolf
a321a5c412
Moved stand-alone libs to libs/ directory and added libs/subcircuit
2013-02-27 09:32:19 +01:00
Clifford Wolf
7764d0ba1d
initial import
2013-01-05 11:13:26 +01:00