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4064 Commits

Author SHA1 Message Date
Wilson Snyder 309129ebcf Add PARAMNODEFAULT error, for parameters without defaults. 2025-08-03 15:27:37 -04:00
Geza Lore deed20fb78
Fix partial DFG conversion of concat assignments (#6255) 
When we had a `{a, b} = ...`, and the DFG conversion of `a = ...`
succeeded, but `b = ...` failed, we still used to include `a = ...` in
the DFG, which then caused a spurious multi-driver error for `a` on
a subsequent DFG pass, as the original `{a, b} = ...` was still present
in the Ast, but we also had the extra `a = ...` from converting out of
DFG on the previous pass.

In this patch we only convert assignments with a concatenation on the
LHS, if all target LValues can be converted into DFG.

This is the proper fix for #4231
 2025-08-03 14:52:20 +01:00
Wilson Snyder 36577bb549 Add check for missing 'parameter' on implicit types 2025-08-02 17:02:45 -04:00
Wilson Snyder de9671d4a3 Tests: uvm_regex.cc from upstream has clang warnings 2025-08-02 15:03:09 -04:00
Wilson Snyder 12355270b3 Tests: Add uvm_dpi 2025-08-02 13:50:16 -04:00
Ryszard Rozak f9bdab65f0
Fix coverage of variables of complex types (#6250) 2025-08-01 13:24:18 +02:00
Szymon Gizler 61f4c97f40
Support unassigned virtual interfaces (#5265) (#6245) 2025-08-01 12:39:13 +02:00
Rodrigo Batista de Moraes d0f0919830
Fix write of 0 in '%c' (#6248) (#6249) 2025-08-01 07:54:18 +02:00
Wilson Snyder bd1ac03828 Add I/O versus data declaration checking. 2025-07-31 18:38:50 -04:00
Ryszard Rozak d8f1e1113a
Fix error when force assignment is used with ref function args (#6244) 2025-07-31 12:48:37 +02:00
Wilson Snyder 9d38e63269 Remove error on missing forward declarations of typedef in class (#6207). 2025-07-30 09:14:13 -04:00
Igor Zaworski 2b62f5a625
Add error when trying to assign class object to variable of non-class types (#6237) 2025-07-30 09:48:02 +02:00
Wilson Snyder 0da9f6eb03 Fix queue typedef with unbounded slice (#6236). 2025-07-28 19:36:52 -04:00
Wilson Snyder 2ff6ee9613 Support vpi_handle_by_name with `$root.`. 2025-07-28 18:03:21 -04:00
Wilson Snyder 833c31b031 Add `-DVERILATOR=1` definition to compiler flags when using verilated.mk. 2025-07-28 18:01:50 -04:00
Ryszard Rozak a5b0a0d9dd
Add support for `$countones` in constraints (#6144) (#6235) 2025-07-28 16:14:03 +02:00
Wilson Snyder 5c1d7f3ce9 Fix negate of wide structure selections (#6186). 2025-07-28 02:20:57 -04:00
Wilson Snyder e69df457fd Fix MODDUP with duplicate packages to take first package (#6222). 2025-07-28 01:45:03 -04:00
Wilson Snyder 47c5b220b3 Support non-ansi ports with `wire` before `input` 2025-07-27 17:13:56 -04:00
Wilson Snyder 64a82508f2 Fix error on `with` to give UNSUPPORTED (#6134) 2025-07-27 16:12:16 -04:00
Paul Swirhun bd2cb989d1 Support bit queue streaming (#5830) (#6103). 2025-07-27 15:29:56 -04:00
Wilson Snyder d359fffcdc Internals: Refactor V3Task and add loop assert (#6218) 2025-07-27 10:30:19 -04:00
Wilson Snyder c4b3f1e99c Tests: Add test and assert for nested simulated loops (#6223) 2025-07-27 09:43:46 -04:00
Geza Lore 895b85a16e
Fix Replicate with unsigned count but MSB set (#6231) (#6233) 
Correctly compute witdh of AstReplicate in its constructor when the
count is unsigned but its MSB is set.
 2025-07-27 12:30:19 +02:00
Wilson Snyder 1725ee9c52 Fix loop initialization visibility outside loop (#4237). 2025-07-27 03:42:41 -04:00
Wilson Snyder 470f99694e Revert d8dbb08a: Support bit queue streaming (#5830) (#6103) 2025-07-26 17:59:52 -04:00
Wilson Snyder f3560837ec Add error on missing forward declarations (#6207). 2025-07-26 17:11:35 -04:00
Paul Swirhun d8dbb08a95
Support bit queue streaming (#5830) (#6103) 2025-07-26 16:53:51 -04:00
Wilson Snyder 39a5c731ac Tests: Fix missing forward decls (#6202 partial) 2025-07-26 15:48:19 -04:00
Geza Lore 504884b7d5
Refactor DFG context objects (#6232) 
- Move All DFG context objects to V3DfgContext.h
- Add separate object for ast2dfg and dfg2ast passes
- Factor out commonalities

No functional change
 2025-07-26 20:37:01 +01:00
Wilson Snyder d289934ca9 Improve `--skip-identical` to skip on identical input file contents (#6109). 2025-07-26 02:43:57 -04:00
github action 20bd80698d Apply 'make format' 2025-07-25 18:06:24 +00:00
George Polack f1826a7c20
Support Verilog real to SystemC double (#6136) (#6158) 2025-07-25 20:05:36 +02:00
Wilson Snyder fa62cd3486 Fix `--stats` overridden by skipping identical build (#6220). 2025-07-25 07:23:02 -04:00
Yilou Wang 10ac99ac05
Support randomization of scope variables with 'std::randomize()' (#5438) (#6185) 2025-07-25 12:13:46 +02:00
Wilson Snyder b408e097f6 Fix unsigned replicate (#6229) 2025-07-24 22:55:26 -04:00
Geza Lore 94bebb2bcb
Fix dereferencing stale iterator in DfgVertex::scopep() (#6227) 
Fix dereferencing stale iterator in DfgVertex::scopep()

Fixes part of #6225
 2025-07-24 15:31:31 +01:00
Geza Lore 2be257369a
Fix component numbers of new Vertices in V3DfgBreakCycles (#6228) 
Fix component numbers of new Vertices in V3DfgBreakCycles

Fixes part of #6225
 2025-07-24 15:31:09 +01:00
Artur Bieniek 04c38d5b3b
Tests: Switch to measuring CPU time instead of real time in test timeouts (#6224) 
Signed-off-by: Artur Bieniek <abieniek@internships.antmicro.com>
 2025-07-24 11:27:02 +02:00
Wilson Snyder db5b2669fc Add current memory usage statistic (#6192 partial) 2025-07-24 08:36:58 +02:00
Wilson Snyder 460bfbf181 Fix replicate of negative giving 'REPLICATE has no expected width' internal error (#6048). 2025-07-23 18:07:50 -04:00
Wilson Snyder 050e5ddb5b Fix internal error after bad method 2025-07-23 17:17:35 -04:00
Wilson Snyder 393f0e4acb Tests: Example format 2025-07-23 14:58:58 -04:00
Geza Lore 7c5d462564
Remove AstJumpLabel (#6221) 
Remove AstJumpLabel

AstJumpGo now references one if its enclosing AstJumpBlocks, and
branches straight after the referenced block.

That is:

```
JumpBlock a {
   ...
   JumpGo(a);
   ...
}
// <--- the JumpGo(a) goes here
```

This is sufficient for all use cases and makes control flow much easier to
reason about. As a result, V3Const can optimize a bit more aggressively.

Second half of, and fixes #6216
 2025-07-23 17:51:16 +01:00
Geza Lore 763183f067
Internals: Remove AstWhile::precondsp() (#6219). No functional change intended. 2025-07-23 08:50:39 -04:00
Geza Lore 2958a5aaae
Internals: Do not emit temporaries for atomic assignments. (#6217) 
Added test for a particularly convoluted case requiring fixup in
V3Premit. To help with statistics stability, also prevent V3Premit from
introducing temporaries for assignment where the RHS reads the LHS, but
the assignment is known to be atomic (by emitted C++ semantics).

Also rename `createWideTemp` to `createTemp`, as it is used for non-wide
expressions as well.
 2025-07-23 11:48:55 +02:00
Geza Lore 344fabf56a
Fix incorrect assumption in V3DfgDecomposition (#6215) 
Due to SCC merging the deleted assumption/assertion can be violated.
Fixes #6211.
 2025-07-22 14:03:35 +01:00
Geza Lore 9f04ee68c8
Optimize combinational cycles through arrays in DFG (#6210) 
Extending V3DfgBreakCycles to handle common cases involving unpacked
arrays.
 2025-07-22 08:23:45 +01:00
Danny Oler 74d4b0c0ea
Fix automatic task variables in unrolled loops with forks (#6194) (#6201). 2025-07-21 19:28:50 -04:00
Geza Lore a8dca71ed0
Support more complex combinational assignments in DFG. (#6205) 
Previously DFG was limited to having a Sel, or an ArraySel potentially
under a Concat on the LHS of combinational assignments. Other forms or
combinations were not representable in the graph.

This adds support for arbitrary combinations of the above by
combining DfgSplicePacked and DfgSpliceArray vertices introduced in
 #6176. In particular, Sel(ArraySel(VarRef,_),_) enables a lot more code
to be represented in DFG.
 2025-07-21 12:33:12 -04:00