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8038 Commits

Author SHA1 Message Date
Wilson Snyder d89df33fcd Change control file `public_flat_*` and other signal attributes to support __ in names (#6140). 2025-07-09 20:48:00 -04:00
Martin Stadler d1462f3120
Fix cmake `-Wno` compiler flag testing (#6145) 2025-07-09 19:31:42 -04:00
Wilson Snyder 9fc7143fce Fix genvar error with `-O0` (#6165). 2025-07-09 19:11:48 -04:00
Wilson Snyder 597b973f7b Internals: Fix some style issues. No functional change. 2025-07-09 18:52:26 -04:00
Wilson Snyder a84c5d2010 Commentary: Changes update 2025-07-09 18:51:49 -04:00
Igor Zaworski dbfbc657e1
Fix class extends dotted error (#6162) 2025-07-09 17:12:11 -04:00
Ryszard Rozak 8b3a6ba542
Support disable dotted references (#6154) 2025-07-09 16:59:26 -04:00
Wilson Snyder 8ba7cec15b devel release 2025-07-08 23:22:58 -04:00
Wilson Snyder f037ac50b4 Version bump 2025-07-08 23:02:26 -04:00
Wilson Snyder 1f0e767b61 Commentary: Changes update 2025-07-08 17:37:21 -04:00
Igor Zaworski 5777ab75c7
Fix crash with --dumpi-V3LinkDot without --debug (#6159) 2025-07-08 10:28:17 -04:00
Geza Lore e494cf22a4
Add DfgPeephole patterns (#6149) 2025-07-07 16:25:29 +01:00
Wilson Snyder 5a6d5ed96b Support property `iff` and `implies`. 2025-07-03 21:13:04 -04:00
Wilson Snyder 26c7f1adb6 Tests: Change default indent to 2 spaces (match edaplayground). No functional change. 2025-07-03 20:43:13 -04:00
Wilson Snyder 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
Wilson Snyder 1cd65e90bd Commentary: Changes update 2025-07-03 19:11:09 -04:00
Wilson Snyder e3c7dee6ef Internals: Add UINFOTREE method 2025-07-03 19:07:50 -04:00
Wilson Snyder 6c9cbaef62 Internals: Clean up some constructors. No functional change intended. 2025-07-03 18:59:32 -04:00
Todd Strader 08fef668cd
Fix more wide ternary + coverage cases (#6155) 2025-07-03 18:00:39 -04:00
Tobias Rosenkranz 92970bd9a0
Update docker base image to Ubuntu 24.04 (#6147) 2025-07-03 15:29:03 -04:00
Paul Swirhun e0c3b42262
Fix developer build error on MacOS/Flex2.6.4 (https://github.com/verilator/verilator/pull/6153) 2025-07-02 19:56:10 -07:00
Wilson Snyder 4ddc649836 Add UNSUPPORTED rather than syntax error on pullup/pulldown strengths 2025-07-02 20:54:47 -04:00
Wilson Snyder 77908447e6 Support scoped `new` (#4199). 2025-07-02 19:54:57 -04:00
Wilson Snyder bb41c6b26b Internals: Fix wrong fileline on some parsing scan-aheads. 2025-07-02 18:47:27 -04:00
Todd Strader ae0f29ed37
Fix wide non-blocking assignment mis-optimization (#6150) (#6152) 2025-07-02 18:43:10 -04:00
Wilson Snyder 73ca2ab997 Support `$past_gclk` 2025-07-01 18:00:04 -04:00
Geza Lore 7a3f1f16ca
Optimize DFG before V3Gate (#6141) 2025-07-01 17:55:08 -04:00
Wilson Snyder e015805194 Fix stripping on randomize (#6144 partial) 2025-07-01 08:57:08 -04:00
Wilson Snyder 73da5e51a6 Commentary: Changes update 2025-07-01 08:07:54 -04:00
Wilson Snyder 9598ef9315 Internals: Avoid - in enum name 2025-07-01 05:45:10 -04:00
Wilson Snyder cd0f35fe67 Fix recursive module assertion, broken recent lib commit (#5891 partial fix) 2025-06-30 20:30:27 -04:00
Wilson Snyder d455ec6229 Fix `specparam` PATHPULSE broken recent commit (#6142). 2025-06-30 18:33:50 -04:00
Tobias Rosenkranz db854fc3d2
Improve docker image size (#6139) 2025-06-30 08:04:18 -04:00
github action b27bd6526a Apply 'make format' 2025-06-30 01:00:56 +00:00
Wilson Snyder 916a89761e Add `--work` library-selection option (#5891 partial). 2025-06-29 20:17:27 -04:00
Geza Lore c3d86626ee
Internals: Remove unused AstNodeModule 'activesp' child (#6138) 2025-06-29 09:56:44 -04:00
Wilson Snyder 5d32fc56ac Support 'config' parsing, but not functionally 2025-06-28 20:32:19 -04:00
Wilson Snyder 93f447dd4a Support constant functions with left-hand-side concatenates. 2025-06-28 17:12:03 -04:00
Geza Lore 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
Wilson Snyder b914cda1c7 Internals: cppcheck cleanups. No functional change. 2025-06-28 12:29:41 -04:00
Wilson Snyder 62e5e3aa0c Fix interface array connections with non-zero low declaration index. 2025-06-28 09:43:02 -04:00
Wilson Snyder f508dadc97 Support `specparam` (#5767). 2025-06-28 08:23:43 -04:00
Wilson Snyder 189d094202 Commentary 2025-06-27 22:31:51 -04:00
Wilson Snyder 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
Todd Strader 73696f0a71
Tests: Add coverpoints test (#6118) 2025-06-27 15:47:13 -04:00
Wilson Snyder 17c2512d03 Fix `pre_randomize`/`post_randomize` when no randomize (#6128). 2025-06-26 18:35:49 -04:00
Wilson Snyder 75229cc03d Fix `pre_randomize`/`post_randomize` when no randomize (#6122). 2025-06-26 18:34:20 -04:00
Wilson Snyder e422c183ff Fix method calls without parenthesis (#6127). 2025-06-26 18:16:21 -04:00
Wilson Snyder 68e1ed55f6 Commentary: Changes update 2025-06-26 17:42:10 -04:00
Wilson Snyder 993f65f3b4 Internals/CI: Format cmakefiles using mbake 2025-06-26 17:36:56 -04:00