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Author SHA1 Message Date
Eddie Hung
45cd323055
Merge pull request #2082 from YosysHQ/eddie/abc9_scc_fixes 
abc9: fixes around handling combinatorial loops
 2020-06-03 17:35:46 -07:00
whitequark
6268bdfe6f flatten: simplify. 
`flatten` cannot derive modules in most cases because that would just
yield processes, and it does not support `-autoproc`; in practice
`flatten` has to be preceded by a call to `hierarchy`, which makes
deriving unnecessary.
 2020-06-04 00:02:12 +00:00
whitequark
d3e2100306 flatten: simplify. NFC. 
Remove redundant sigmaps.
 2020-06-04 00:02:12 +00:00
whitequark
66255dab4e flatten: simplify. 
Flattening does not benefit from topologically sorting cells within
a module when processing them.
 2020-06-04 00:02:12 +00:00
whitequark
5d2b6d1394 flatten: simplify. NFC. 
Flatten is non-recursive and doesn't need to keep track of handled
cells.
 2020-06-04 00:02:12 +00:00
whitequark
3c3fa774e5 flatten: simplify. NFC. 
Flattening always does "non-recursive" mapping.
 2020-06-04 00:02:12 +00:00
whitequark
e561a3a76f flatten: simplify. NFC. 
The `celltypeMap` always maps `x` to `{x}`.
 2020-06-04 00:02:12 +00:00
whitequark
6783876807 flatten: simplify. NFC. 
The `design` and `map` designs are always the same when flattening.
 2020-06-04 00:02:12 +00:00
whitequark
9338ff66b9 RTLIL: factor out RTLIL::Module::addMemory. NFC. 2020-06-04 00:02:12 +00:00
whitequark
ebbbe2156e flatten: rename techmap-related stuff. NFC. 2020-06-04 00:02:12 +00:00
whitequark
76c4ee4ea5 techmap, flatten: remove dead options. 
After splitting the passes, some options can never be activated,
and most conditions involving them become dead. Remove them, and also
all of the newly dead code.
 2020-06-04 00:02:12 +00:00
Peter Crozier
0d3f7ea011
Merge branch 'master' into struct 2020-06-03 17:19:28 +01:00
Eddie Hung
8a11019d38 tests: tidy up testcase 2020-06-03 08:41:55 -07:00
Eddie Hung
46ed0db2ec
Merge pull request #2080 from YosysHQ/eddie/fix_test_warnings 
tests: reduce test warnings
 2020-06-03 08:37:07 -07:00
whitequark
6ac54a74fe flatten: split from techmap. 
Although the two passes started out very similar, they diverged over
time and now have little in common. Moreover, `techmap` is extremely
complex while `flatten` does not have to be, and this complexity
interferes with improving `flatten`.
 2020-06-03 15:34:03 +00:00
whitequark
577859fbdb
Merge pull request #2104 from whitequark/simplify-techmap 
techmap: simplify
 2020-06-03 12:45:02 +00:00
whitequark
fb5b070e7e techmap: remove dead variable. NFC. 2020-06-03 01:44:06 +00:00
whitequark
0a74368bfc techmap: use C++11 default member initializers. NFC. 2020-06-02 23:43:20 +00:00
whitequark
f3e86bb32a techmap: simplify. 
`rewrite_filename` is already called in `Frontend::extra_args`.
 2020-06-02 23:43:20 +00:00
whitequark
68d747f767 techmap: use +/techmap.v instead of an ad-hoc code generator. 2020-06-02 23:43:20 +00:00
clairexen
4b3f48a7ec
Merge pull request #2102 from YosysHQ/tests_fix 
allow range for mux test
 2020-06-02 17:13:08 +02:00
clairexen
2ed045738b
Merge pull request #2101 from YosysHQ/mmicko/verific_asymmetric 
Support asymmetric memories for verific frontend
 2020-06-02 17:12:02 +02:00
Miodrag Milanovic
0a88f002e5 allow range for mux test 2020-06-01 13:48:19 +02:00
Miodrag Milanovic
71072d1945 Support asymmetric memories for verific frontend 2020-06-01 10:30:03 +02:00
clairexen
ff785cdb46
Merge pull request #1862 from boqwxp/cleanup_techmap 
Clean up `passes/techmap/techmap.cc`
 2020-05-31 20:40:48 +02:00
Eddie Hung
08d9703ecb abc9_ops: fix comment 2020-05-30 09:01:03 -07:00
Eddie Hung
fe273faad1
Merge pull request #2081 from YosysHQ/eddie/blackbox_ast 
blackbox: use Module::makeblackbox() method
 2020-05-30 08:59:20 -07:00
Eddie Hung
ea4374a223 abc9_ops: update messaging (credit to @Xiretza for spotting) 2020-05-30 08:57:48 -07:00
clairexen
ea46ed81f9
Merge pull request #2018 from boqwxp/qbfsat-timeout 
smtbmc and qbfsat: Add timeout option to set solver timeouts for Z3, Yices, and CVC4.
 2020-05-30 15:04:51 +02:00
Xiretza
8b0ec3c3a2
Use in-tree include directory in manual build 
This is basically the same issue as in tests/various/plugin.sh,
which uses yosys-config to compile a plugin. `yosys-config --cxxflags`
points to `$PREFIX/share/` (/usr/local/share by default), which might
not exist yet or might be out of date. Building directly from the
headers in ./share/ avoids this.
 2020-05-30 11:21:40 +02:00
Eddie Hung
b17e8495b8 abc9_ops: optimise to not derive unless attribute exists 2020-05-29 17:33:10 -07:00
Eddie Hung
d3b53bc495 abc9_ops: -reintegrate use SigMap to remove (* init *) from $_DFF_[NP]_ 2020-05-29 17:17:40 -07:00
Alberto Gonzalez
ea30465107
smtbmc: Remove superfluous yosys-smt2-timeout file macro. 
Co-Authored-By: clairexen <claire@symbioticeda.com>
 2020-05-29 21:33:00 +00:00
clairexen
0a14e1e837
Merge pull request #2029 from whitequark/fix-simplify-memory-sv_logic 
ast/simplify: don't bitblast async ROMs declared as `logic`
 2020-05-29 16:52:11 +02:00
clairexen
94c1035389
Merge pull request #1885 from Xiretza/mod-rem-cells 
Fix modulo/remainder semantics
 2020-05-29 16:37:23 +02:00
clairexen
af36afe722
Merge pull request #2092 from whitequark/rtlil-no-space-control 
Restrict RTLIL::IdString to not contain whitespace or control chars
 2020-05-29 16:31:44 +02:00
clairexen
5874a14d65
Merge pull request #2017 from boqwxp/qbfsat-cvc4 
qbfsat: Add support for CVC4.
 2020-05-29 16:23:10 +02:00
clairexen
1c8d5a08a0
Merge pull request #2016 from boqwxp/qbfsat-yices 
qbfsat: Add `-solver` option and allow choice of Z3 or Yices, making Yices the default.
 2020-05-29 16:21:45 +02:00
whitequark
626c74adbd
Merge pull request #2097 from whitequark/ilang_lexer-fix-erange 
ilang_lexer: fix check for out of range literal
 2020-05-29 09:04:27 +00:00
whitequark
13b2963ded ilang_lexer: fix check for out of range literal. 
Commit ca70a104 did not use a correct check.
 2020-05-29 06:58:44 +00:00
whitequark
2116d9500c
Merge pull request #2033 from boqwxp/cleanup-verilog-lexer 
verilog: Move lexer location variables from global namespace to `VERILOG_FRONTEND` namespace.
 2020-05-29 06:46:33 +00:00
whitequark
efa7424fb9 Restrict RTLIL::IdString to not contain whitespace or control chars. 
This is an existing invariant (most backends can't cope with these)
but one that was not checked or documented.
 2020-05-29 06:43:18 +00:00
Xiretza
f88bef7672
Document division and modulo cells 2020-05-28 22:59:04 +02:00
Xiretza
c34cb90a20
Update CHANGELOG 2020-05-28 22:59:04 +02:00
Xiretza
7c89738382
Add comments for mod/div semantics to rtlil.h 2020-05-28 22:59:04 +02:00
Xiretza
6a2bac21d3
Expand tests/simple/constmuldivmod.v 2020-05-28 22:59:04 +02:00
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
whitequark
0d99522b3c
Merge pull request #2095 from rswarbrick/hier-typo 
Fix small typos in documentation for hierarchy command
 2020-05-28 10:49:14 +00:00
Rupert Swarbrick
1158bbf7db Fix small typos in documentation for hierarchy command 2020-05-28 11:39:44 +01:00