056c3ee331
Testing: Add --enable-asan configure option to compile with AddressSanitizer ( #6404 )
2025-09-09 08:55:49 +01:00
7d3c58d21c
Docs: Notes about `--x-initial-edge` ( #6377 comment)
2025-09-04 09:09:54 -04:00
636a6b8cd2
Optimize complex combinational logic in DFG ( #6298 )
...
This patch adds DfgLogic, which is a vertex that represents a whole,
arbitrarily complex combinational AstAlways or AstAssignW in the
DfgGraph.
Implementing this requires computing the variables live at entry to the
AstAlways (variables read by the block), so there is a new
ControlFlowGraph data structure and a classical data-flow analysis based
live variable analysis to do that at the variable level (as opposed to
bit/element level).
The actual CFG construction and live variable analysis is best effort,
and might fail for currently unhandled constructs or data types. This
can be extended later.
V3DfgAstToDfg is changed to convert the Ast into an initial DfgGraph
containing only DfgLogic, DfgVertexSplice and DfgVertexVar vertices.
The DfgLogic are then subsequently synthesized into primitive operations
by the new V3DfgSynthesize pass, which is a combination of the old
V3DfgAstToDfg conversion and new code to handle AstAlways blocks with
complex flow control.
V3DfgSynthesize by default will synthesize roughly the same constructs
as V3DfgAstToDfg used to handle before, plus any logic that is part of a
combinational cycle within the DfgGraph. This enables breaking up these
cycles, for which there are extensions to V3DfgBreakCycles in this patch
as well. V3DfgSynthesize will then delete all non synthesized or non
synthesizable DfgLogic vertices and the rest of the Dfg pipeline is
identical, with minor changes to adjust for the changed representation.
Because with this change we can now eliminate many more UNOPTFLAT, DFG
has been disabled in all the tests that specifically target testing the
scheduling and reporting of circular combinational logic.
2025-08-19 15:06:38 +01:00
48a12fb0f4
Document and test `+verilator+rand+reset+2` usage ( #6285 partial)
2025-08-16 11:47:19 -04:00
833c31b031
Add `-DVERILATOR=1` definition to compiler flags when using verilated.mk.
2025-07-28 18:01:50 -04:00
ce77bac99a
Break some combinational cycles in DFG ( #6168 )
...
Added an algorithm that can break some combinational cycles in DFG, by
attempting to trace driver logic until we escape the cycle. This can
eliminate a decent portion of UNOPTFLAT warnings. E.g. due to this code:
```systemverilog
assign a[0] = .....;
assign a[1] = ~a[0];
```
2025-07-10 18:46:45 +01:00
f77af4e6f6
Important: Change `--assert` to be the default; use `--no-assert` for legacy behavior and faster runtimes.
2025-07-03 19:36:28 -04:00
7a3f1f16ca
Optimize DFG before V3Gate ( #6141 )
2025-07-01 17:55:08 -04:00
916a89761e
Add `--work` library-selection option ( #5891 partial).
2025-06-29 20:17:27 -04:00
3defaf8ffb
Rename Verilator Config Files to Verilator Control Files.
...
Avoids conflict with IEEE `config`. No functional change intended.
2025-06-27 20:38:01 -04:00
2daa09a255
Optimize constify within Expand and Subst ( #6111 )
...
These passes blow up the Ast size on some designs, so delaying running V3Const
until after the whole pass can notably increase peak memory usage. In this
patch we apply V3Const per CFunc within these passes, which saves on memory.
Added -fno-const-eager to disable the intra-pass V3Const application, for
debugging.
2025-06-23 17:58:26 -04:00
4c2eb8c0b8
Commentary: Fix broken links
2025-06-15 14:51:56 -04:00
40881d7e79
Commentary: Changes update
2025-05-29 18:59:51 -04:00
9cc4cc0efd
Add `--hierarchical-threads` ( #6037 )
2025-05-26 09:37:35 -04:00
f8359adcc0
Commentary: Changes update
2025-05-20 22:51:07 -04:00
66667b6172
Support SARIF JSON diagnostic output with `--diagnostics-sarif`. ( #6017 )
2025-05-17 15:46:15 -04:00
8100bc64a0
Commentary
2025-05-11 22:36:16 -04:00
d0424862f9
Commentary: Changes update
2025-05-10 13:22:26 -04:00
51616ecf2f
Internals: Rename to instances, and other minor cleanups
2025-05-04 14:57:10 -04:00
e837f780a2
Commentary
2025-05-03 04:25:01 -04:00
8b52bd817f
Add PROCINITASSIGN on initial assignments to process variables ( #2481 ).
2025-04-30 22:00:06 -04:00
c9be36911f
Cleanup documentated option sort order, and enforce with test
2025-04-26 17:14:49 -04:00
0984fd045f
Change `--trace` to `--trace-vcd`.
2025-04-05 10:46:39 -04:00
4dd49e1244
Commentary: Changes update
2025-03-25 08:24:19 -04:00
fabded95df
Support multi-thread hierarchical simulation ( #2583 ) ( #5871 )
2025-03-24 18:39:29 -04:00
64caa700d3
Commentary: Changes update
2025-03-12 07:58:26 -04:00
d9701e6406
Automatically split some packed variables ( #5843 )
...
This patch adds a heuristic to V3SplitVar, and it attempts to split up
packed variables that are only referenced via constant index,
non-overlapping bit/range selects. This can eliminate some UNOPTFLAT cases.
2025-03-09 10:31:01 -04:00
a62f7fe4ae
Commentary: Changes update
2025-03-07 18:03:01 -05:00
9b4509f7d9
Add `--trace-saif` for SAIF power traces ( #5812 )
2025-03-07 10:41:29 -05:00
d232923051
Change `--output-groups` to default to value of `--build-jobs`.
...
Those using build farms may need to now use `--output-groups 0` or otherwise.
2025-02-24 20:38:08 -05:00
5daf7385f1
Commentary: Changes update
2025-02-24 04:04:23 -05:00
2e1fa8f338
Add `--preproc-resolve` for modules in preprocessor output ( #5789 )
...
Signed-off-by: Kamil Rakoczy <krakoczy@antmicro.com>
2025-02-22 04:47:54 +10:00
2d0149b703
Commentary: Changes update
2025-02-19 17:00:29 -05:00
34ced254c0
Support expression coverage ( #5719 )
2025-02-19 16:42:23 -05:00
283f6c7433
Add `--preproc-token-limit` ( #5768 )
2025-02-07 10:32:12 -05:00
6281385ee8
Commentary/Internals: Sort option names. No functional change.
2025-01-24 21:31:57 -05:00
0507fb4655
Improve hierarchical DPI wrapper scheduling performance ( #2583 ) ( #5734 )
2025-01-20 14:24:09 -05:00
f8dd65c7cd
Add `--public-ignore` to ignore public metacomments ( #7819 )
2025-01-11 12:29:39 -05:00
76b2ac9cc1
Support `+incdir` with multiple directories.
2025-01-05 19:30:39 -05:00
8fbb725f34
Copyright year update.
2025-01-01 08:30:25 -05:00
7a8f71e7d8
Add `--fno-slice` to disable array assignment slicing ( #5644 ).
2024-11-28 13:49:34 -05:00
25d75ee86f
Add `--fno-inline-funcs` to disable function inlining.
2024-11-25 19:59:10 -05:00
749b0345df
Commentary: Changes update
2024-11-23 22:06:07 -05:00
9bde98e912
Commentary
2024-11-14 21:07:45 -05:00
3ffea76e11
Add `--no-std-waiver` and default reading of standard lint waivers file ( #5607 ).
2024-11-12 22:11:19 -05:00
0bf413b260
Add `lint_off --contents` in configuration files. ( #5606 )
2024-11-12 20:21:16 -05:00
a5b2cb6ddf
Commentary: Changes update
2024-11-12 17:19:42 -05:00
779cf9248a
Cleanup/standardize configuration file string handling
2024-11-12 11:29:27 -05:00
4d95f6f7b8
Add `--waiver-multiline` for context-sensitive `--waiver-output`.
2024-11-11 20:00:26 -05:00
7c8ff1d19c
Add `--no-std-package` as subset-alias of `--no-std`.
2024-11-11 08:30:07 -05:00
03bd1bfc63
Move Concat balancing from DFG to FuncOpt ( #5602 )
...
This means it applies more widely, e.g. inside sequential logic.
2024-11-10 17:23:11 +00:00
77ef2cd487
Split up assignments to wides with Concat on the RHS ( #5599 )
...
Add a new pass to split up (recursively):
foo = {l, r};
into the following, with the right indices, iff the concatenation
straddles a wide word boundary.
foo[_:_] = r;
foo[_:_] = l;
This eliminates more wide temporaries.
Another 23% speedup on VeeR EH2 high_perf. Also brings the predicted
stack size from 8M to 40k.
2024-11-10 15:51:59 +00:00
2c445e4bfd
Commentary: Changes update
2024-10-07 21:44:07 -04:00
0547108e3f
Add `-output-groups` to build with concatenated .cpp files ( #5257 )
...
Signed-off-by: Bartłomiej Chmiel <bchmiel@antmicro.com>
Signed-off-by: Ryszard Rozak <rrozak@antmicro.com>
Signed-off-by: Arkadiusz Kozdra <akozdra@antmicro.com>
Co-authored-by: Mariusz Glebocki <mglebocki@antmicro.com>
Co-authored-by: Arkadiusz Kozdra <akozdra@antmicro.com>
Co-authored-by: Bartłomiej Chmiel <bachm44@gmail.com>
Co-authored-by: Wilson Snyder <wsnyder@wsnyder.org>
Co-authored-by: Ryszard Rozak <rrozak@antmicro.com>
2024-09-30 21:42:36 -04:00
e566b5a4f5
Change .vlt config files to be read before .v files ( #5185 ).
2024-09-09 20:18:54 -04:00
8db9c1d227
Commentary: Changes update
2024-08-21 08:40:14 -04:00
a730daabef
Support 'parameter type' in hierarchical blocks ( #5309 ) ( #5333 )
2024-08-21 05:30:59 -04:00
947b6fd23f
Add `--emit-accessors` ( #5182 ) ( #5227 )
2024-07-06 13:12:53 +01:00
864a852bca
Add `--compiler-include` for additional C++ includes ( #5139 ) ( #5202 )
2024-06-27 18:53:44 -04:00
9e2c8aefc8
Add `--pins-sc-uint-bool` to force SystemC uint type ( #5192 )
2024-06-25 05:27:09 -04:00
f84592af49
Fix x-valued parameters with `--x-assign unique` ( #5129 ).
2024-05-21 08:07:57 -04:00
8fd038f88e
Add `--localize-max-size` option and optimization ( #5072 ).
2024-04-30 19:46:54 -04:00
a8b5738b44
Support __en/__out signals on top level inout ports ( #4812 ) ( #4856 )
2024-04-11 09:02:58 -04:00
8301fdc6d3
Add JSON AST dumps ( #5020 )
2024-03-28 07:32:18 -04:00
4df9e2e0e5
Add printing summary reports ( #4909 ) ( #5018 )
2024-03-25 07:03:17 -04:00
91dd3c5fac
Support 1800-2023 keywords.
2024-03-02 10:15:19 -05:00
e60f652a64
Commentary ( #4936 )
2024-03-01 17:32:26 -05:00
51ae8e13fb
Add --assert-case option ( #4919 )
2024-02-23 23:05:53 +09:00
a951446f9b
Add --[no]-stop-fail option ( #4904 )
...
Co-authored-by: Wilson Snyder <wsnyder@wsnyder.org>
2024-02-19 21:26:58 +09:00
a187a16e56
Commentary: Changes update
2024-02-13 21:47:09 -05:00
cbc76a7816
Dump DFG patterns with --stats ( #4889 )
...
With --stats, we will print DFG pattern combinations, one per line, as
S-expressions to new stat files, together with their frequency, to aid
discovery of new peephole patterns.
2024-02-11 15:41:10 +00:00
d667b73e8d
Add --json-only and related JSON dumping ( #4715 ) ( #4831 ).
2024-02-09 17:50:09 -05:00
c715cfc254
Add --valgrind switch ( #4828 )
2024-01-29 07:50:05 -05:00
d6f8ccd20b
Add `unroll_disable` and `unroll_full` loop control metacomments ( #3260 ).
2024-01-26 07:49:07 -05:00
d4c8a15407
Add --runtime-debug for Verilated executable runtime debugging.
2024-01-25 07:34:30 -05:00
354a534d68
Add '--decorations node' for inserting debug comments into emitted code.
2024-01-24 21:51:47 -05:00
e76f29e5ba
Copyright year update
2024-01-01 03:19:59 -05:00
25ca965938
Commentary
2023-11-21 19:17:39 -05:00
dc346b7ffa
Remove deprecated options ( #4663 )
2023-11-04 17:28:36 +00:00
6cdf8da3f7
Fix documentation line wrap ( #4456 )
2023-09-05 07:25:33 -04:00
8d1570db28
Add check for conflicting options e.g. binary+lintonly ( #4409 )
2023-08-29 19:55:37 -04:00
e9cc2786b7
Add --no-trace-top option ( #4422 )
2023-08-19 04:51:29 -04:00
3c964147be
Add MISINDENT lint warning for misleading indentation.
2023-07-01 10:45:25 -04:00
cff37f0775
Add GENUNNAMED lint warning.
...
Also fix generate-for blocks with empty statements getting lost.
2023-07-01 08:31:53 -04:00
df2746de71
Add --main-top-name option for C main TOP name ( #4235 ) ( #4249 )
2023-05-31 09:02:26 -07:00
c2a524d80b
Commentary ( #4175 )
2023-05-07 08:36:03 -04:00
2aa6a229ca
Change range order warning from LITENDIAN to ASCRANGE ( #4010 )
2023-03-20 20:44:11 -04:00
1ac721af8f
Add STATICVAR warning and convert to automatic ( #4027 ) ( #4030 )
...
Signed-off-by: Ryszard Rozak <rrozak@antmicro.com>
2023-03-17 07:48:41 -04:00
fc17ab280a
Add --public-depth to force public to a certain instance depth ( #3952 )
2023-03-09 21:48:05 -05:00
13c9877099
Add --public-params flag ( #3990 )
2023-03-08 19:38:26 -05:00
adf1de45de
With -Wpedantic change ASSIGNIN to a warning
2023-02-21 16:45:35 -05:00
026bbc306b
Removed deprecated --cdc option.
2023-02-13 22:49:51 -05:00
31130c4b4a
Fix std:: to be parsed first ( #3864 ) ( #3928 )
2023-02-03 09:04:16 -05:00
6ea725f479
Add --verilate-jobs option ( #3889 )
...
Currently this option isn't used, but in the future it will be used to specify parallelization of Verilation step.
2023-01-22 21:52:52 -05:00
4784daa7dc
Add IMPLICITSTATIC warning when a ftask/function is implicitly static ( #3839 )
2023-01-05 17:42:05 -05:00
b24d7c83d3
Copyright year update
2023-01-01 10:18:39 -05:00
c2b09e35f8
Support unpacked structs ( #3802 )
2022-12-20 19:22:42 -05:00
afc66f6a85
Fix make jobserver with submakes ( #3758 ).
2022-12-11 14:19:40 -05:00
b6cdae30f6
docs: Fix grammar.
2022-12-10 20:09:47 -05:00
d61ad04f32
docs: Fix and test for AsciiDoc breaks ( #3728 )
2022-12-09 21:01:33 -05:00
Geza Lore
Wilson Snyder
Bartłomiej Chmiel
Bartłomiej Chmiel
Mateusz Gancarz
Kamil Rakoczy
Todd Strader
Krzysztof Bieganski
Andrew Nolte
Mariusz Glebocki
Ryan Ziegler
Paul Wright
Szymon Gizler
Yutetsu TAKATSUKASA
Szymon Gizler
Ethan Sifferman
Frans Skarman
Don Williamson
Iztok Jeras
Ryszard Rozak
Andrew Nolte
Aleksander Kiryk