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
bc892deacc
Safely support non-overlapping blocking/non-blocking assignments ( #6137 )
...
The manual for the BLKANDNBLK warning describes that it is safe to
disable that error if the updated ranges are non-overlapping. This
however was not true (see the added t_nba_mixed_update* tests).
In this patch we change V3Delayed to use a new ShadowVarMasked
scheme for variables that have mixed blocking and non-blocking
updates (or the FlagUnique scheme for unpacked variables), which
is in fact safe to use when the updated parts are non-overlapping.
Furthermore, mixed assignments are safe as far as scheduling is
concerned if either:
- They are to independent parts (bits/members/etc) (with this patch)
- Or if the blocking assignment is in clocked (or suspendable) logic.
The risk in scheduling is a race between the Post scheduled NBA
commit, and blocking assignments in combinational logic, which might
order incorrectly.
The second point highlights that we can handle stuff like this safely,
which is sometimes used in testbenches:
```systemverilog
always @(posedge clk) begin
if ($time == 0) a = 0;
end
always @(posedge clk) begin
if ($time > 0) a <= 2;
end
````
The only dangerous case is:
```systemverilog
always @(posedge clk) foo[idx] <= val;
assign foo[0] = bar;
```
Whit this patch, this will still resolve fine at run-time if 'idx' is
never zero, but might resolve incorrectly if 'idx' is zero.
With the above in mind, the BLKANDNBLK warning is now only issued if:
- We can't prove that the assignments are to non-overlapping bits
- And the blocking assignment is in combinational logic
These are the cases that genuinely require user attention to resolve.
With this patch, there are no more BLKANDNBLK warnings in the RTLMeter
designs.
Fixes #6122 .
2025-06-28 20:45:45 +01:00
189d094202
Commentary
2025-06-27 22:31:51 -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
993f65f3b4
Internals/CI: Format cmakefiles using mbake
2025-06-26 17:36:56 -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
1c357ba508
Commentary
2025-06-10 08:17:45 -04:00
9fc223d3ee
Commentary: FPGA PROCASSINIT guidance ( #6067 )
2025-06-06 09:59:05 -04:00
8031ca2616
Add `MODMISSING` error, in place of unnamed error ( #6054 ).
2025-05-29 21:02:00 -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
2491f25da7
Add filtering type option in verilator_coverage ( #6030 )
2025-05-22 02:42:09 -07:00
f8359adcc0
Commentary: Changes update
2025-05-20 22:51:07 -04:00
6bb16d6c52
Disable symbol from parser: Support redeclaring type as non-type; major parsing change ( #2412 ).
2025-05-18 07:13:37 -04:00
66667b6172
Support SARIF JSON diagnostic output with `--diagnostics-sarif`. ( #6017 )
2025-05-17 15:46:15 -04:00
1bcd5ee0c1
Fix spelling
2025-05-16 19:02:19 -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
ea65bcd86b
Add lib.map information to unsupported message, etc
2025-05-03 05:30:40 -04:00
e837f780a2
Commentary
2025-05-03 04:25:01 -04:00
3b8d10cae5
Commentary
2025-05-02 07:35:38 -04:00
8b52bd817f
Add PROCINITASSIGN on initial assignments to process variables ( #2481 ).
2025-04-30 22:00:06 -04:00
38dd9a344e
Improve documentation for BADVLTPRAGMA
2025-04-30 20:32:30 -04:00
9b3fccdcb7
Add BADVLTPRAGMA on unknown Verilator pragmas ( #5945 ).
2025-04-29 18:18:54 -04:00
c9be36911f
Cleanup documentated option sort order, and enforce with test
2025-04-26 17:14:49 -04:00
09d27fa8a7
Commentary: Changes update
2025-04-16 07:34:04 -04:00
84f26ed3d7
Add visualization of multi-threaded waiting time with verilator_gantt ( #5929 )
2025-04-10 10:03:58 -04:00
fc8e1b5a2e
Fix several cmake issues, including TRACE_VCD
2025-04-10 07:49:58 -04:00
0a3de7c74a
Commentary: Changes update
2025-04-07 08:32:31 -04:00
0984fd045f
Change `--trace` to `--trace-vcd`.
2025-04-05 10:46:39 -04:00
d5077a9d35
Commentary ( #5919 )
2025-04-05 09:45:07 -04:00
14e7b1076e
Commentary: Changes update
2025-04-02 23:17:39 -04:00
6d1e82b908
Add numactl-like automatic assignment of processor affinity ( #5911 )
2025-04-02 08:27:23 -04:00
559d990e82
Support command-line overriding `define ( #5900 ) ( #5908 )
2025-04-01 07:33:49 -04:00
6f87443da5
Commentary
2025-03-30 11:02:21 -04:00
844448655e
Add `systemc_header_post
2025-03-28 22:40:21 -04:00
b4ef6ce860
Support `systemc_interface and related inside `class`.
2025-03-28 22:40:21 -04:00
cdab9479b8
Commentary: Fix bugpoint link ( #5883 )
...
Signed-off-by: Bartłomiej Chmiel <bchmiel@antmicro.com>
2025-03-26 07:05:18 -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
9c044a9184
Commentary
2025-03-11 17:47:58 -04:00
781bd3cc09
Commentary: Changes update
2025-03-09 13:15:53 -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
10a77a17a9
Commentary ( #5840 )
2025-03-07 23:31:34 -05:00
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
a3b2c2af17
Support force/release with a variable reference ( #5721 ) ( #5810 )
2025-03-04 10:12:02 -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
e171463fa2
Add COVERIGN warning, as a more specific UNSUPPORTED error.
2025-01-06 18:48:32 -05:00
481adf8fe7
Commentary
2025-01-06 17:56:50 -05:00
76b2ac9cc1
Support `+incdir` with multiple directories.
2025-01-05 19:30:39 -05:00
4361c516fd
Commentary: Update contributors.
2025-01-01 09:04:21 -05:00
8fbb725f34
Copyright year update.
2025-01-01 08:30:25 -05:00
079a53e820
Commentary: SYMRSVDWORD + VPI documentation ( #5696 )
2024-12-19 17:14:15 -05:00
29fb82d3b7
Commentary
2024-12-16 18:02:17 -05:00
a7f8c9cc74
Commentary
2024-12-05 08:54:00 -05:00
7a8f71e7d8
Add `--fno-slice` to disable array assignment slicing ( #5644 ).
2024-11-28 13:49:34 -05:00
7695687e87
Commentary: Changes update
2024-11-27 17:56:05 -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
469eca7de2
Commentary: Changes update
2024-10-25 18:54:39 -04:00
fd2917c928
Commentary: Fix sv-bugpoint paragraph typo ( #5558 )
2024-10-24 09:41:27 -04:00
647af27274
Commentary: Mention sv-bugpoint in the contributing guidelines ( #5553 )
2024-10-24 07:42:57 -04:00
230b145c04
Commentary
2024-10-10 08:14:21 -04:00
2c445e4bfd
Commentary: Changes update
2024-10-07 21:44:07 -04:00
554653900a
Commentary: Move C++20 deprec to after Ubuntu 20.04 EOL
2024-10-03 18:15:51 -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
13a1240359
Commentary: Changes update
2024-09-29 21:41:05 -04:00
685ea0bc65
Add Docker pre-commit hook ( #5238 ) ( #5452 )
2024-09-23 07:37:24 -04:00
b17619296a
Documentation: Highlight syntax in install.rst ( #5478 )
2024-09-22 15:55:12 -04:00
49bccb5f1b
Commentary
2024-09-19 17:58:37 -04:00
0fe8c73d19
Fix `$fatal` to not be affected by `+verilator+error+limit` ( #5135 ).
2024-09-13 20:45:44 -04:00
e566b5a4f5
Change .vlt config files to be read before .v files ( #5185 ).
2024-09-09 20:18:54 -04:00
1e7611edea
Change to use maximum for cover point aggregation ( #5402 )
2024-09-09 14:20:18 -04:00
07bb8c701d
Convert test driver to Python ( #5427 )
2024-09-08 13:00:03 -04:00
083fb7e9c2
Add partial coverage symbol and branch data in lcov info files ( #5388 )
2024-09-06 18:15:18 -04:00
ae35be9102
Internals: Reformat with new settings (last commit). No functional change.
2024-08-26 21:53:36 -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
Geza Lore
Wilson Snyder
Todd Strader
Bartłomiej Chmiel
Ryszard Rozak
Bartłomiej Chmiel
Brian Li
Mateusz Gancarz
Kamil Rakoczy
Krzysztof Bieganski
Andrew Nolte
Tomasz Gorochowik
Mariusz Glebocki
Chris Bachhuber