a0a684109f
Support modport export/import task prototypes and out-of-block definitions ( #7277 )
2026-03-18 19:20:34 -04:00
b8ca9292a4
Fix StreamR LHS assertion when source is narrower than destination ( #7276 ) ( #7282 )
2026-03-18 15:15:27 -04:00
907e775aa6
Internals: Add `--fourstate` flag and FUTURE warning ( #7279 )
2026-03-18 13:45:36 -04:00
a2154e9119
Fix interface derived types passed as parameters to generate loop module instantiation ( #7273 )
2026-03-18 09:26:55 -04:00
4b34bfffcb
Fix soft constraint relaxation dropping compatible constraints ( #7271 )
...
* Fix soft constraint relaxation dropping compatible constraints
* patch changes the soft handle ordering so update the out files
2026-03-18 10:15:50 +01:00
612d1611b6
Fix VPI access to multidimensional packed arrays with ascending indices ( #7275 )
2026-03-17 23:30:05 -04:00
3bb0ea63ad
Fix queue slice LHS assignment being silently discarded ( #7270 )
2026-03-17 15:10:49 -04:00
8925762077
Fix rand_mode(0) on sub-object members not preventing solver write-back ( #7272 )
2026-03-17 15:09:14 -04:00
316fb02c60
Support assignment patterns as comparison operands ( #7269 )
...
* Support assignment patterns as EQ/NEQ comparison operands
* Apply 'make format'
* update the .out file
* add both-sides case
---------
Co-authored-by: github action <action@example.com>
2026-03-17 19:36:54 +01:00
ef5281ab73
Fix false illegally-wrapped-around error for signed enums whose auto-incremented values cross zero. ( #7268 )
2026-03-17 19:36:24 +01:00
f4b09cffa7
Tests: Fix race in t_select_sideeffect.
2026-03-16 22:23:07 -04:00
de2c891ca5
Commentary: Changes update
2026-03-16 22:21:51 -04:00
e4bc792732
Tests: Limit test.build_jobs based on number of tests running
2026-03-16 18:50:41 -04:00
d57324e5fb
Support dynamic array .size in inline randomize() with constraints ( #7258 ) ( #7266 )
2026-03-16 18:48:36 -04:00
be0f4a507e
Fix shift width mismatch in constraint solver SMT emission ( #5420 ) ( #7265 )
2026-03-16 18:48:09 -04:00
bf792f1809
Fix array reduction in constraints crashing with class inheritance ( #7226 ) ( #7263 )
2026-03-16 16:36:48 -04:00
651f223387
Fix false recursive definition error ( #6769 ) ( #7118 )
2026-03-16 07:31:35 -04:00
602ee384de
Support $sformat with runtime format string ( #7212 ). ( #7257 )
...
Fixes #7212 .
2026-03-14 22:43:56 -04:00
42cf5d3be2
Fix vpi_put_value with vpiIntVal on VlWide data ( #7256 )
2026-03-14 20:08:59 -04:00
9d38a63563
Support array and struct info metadata in FST traces ( #7255 )
...
- Emit arrays under the new FST scope type FST_ST_SV_ARRAY
- Emit packed/unpacked 'array' attributes before FST_ST_SV_ARRAY,
including left and right indices of the array
- Emit packed/unpacked 'pack' attributes before FST_ST_VCD_STRUCT and
FST_ST_VCD_UNION, including the number of members in the types
All attributes apply to the immediately following scope definition (just
like enum dtype attributes).
2026-03-14 12:31:33 +00:00
7cd49a8028
Support dist and solve...before inside foreach constraints ( #7245 ) ( #7253 )
2026-03-13 11:05:18 -04:00
e0f1f316aa
Fix randc solver hang with wide variables ( #7068 ) ( #7248 )
2026-03-13 07:53:51 -04:00
c0d0180918
Fix `final` asserts and $stop ( #7249 )
2026-03-12 13:09:54 -04:00
4b53f5f978
Tests: Consolidate format specific t_trace_* tests ( #7216 )
...
Factor out test execution into t/trace_*_common.py, which defines
a 'run' functions. All related t_trace_*py tests call this function.
Behaviour is partially encoded in the file name, which must be of the
form: t_trace_complex_<variant>_<mode>_<format>*.py, where '<variant>'
determines tracing options (default/params/structs), '<mode>' is the
compilation mode (--cc/--sc), and '<format>' determines the trace format
(vcd/fst/saif).
The part of the test name after '<format>' does not influence the test
directly and can be free form. If used, explicit 'verilator_flags2' is
passed to the 'run' function.
2026-03-12 15:21:02 +00:00
c74eee5123
Fix rand variable used as array index in constraint evaluated as constant ( #7238 ) ( #7247 )
2026-03-12 10:12:53 -04:00
08c6d5bde5
Improve some display error handling ( #7212 prep)
2026-03-12 07:49:21 -04:00
f2fdc57366
Fix --hierarchical dropping arguments in -f/-F files ( #7240 ).
2026-03-12 07:25:32 -04:00
1198ee919d
Commentary: Changes update
2026-03-12 07:22:33 -04:00
b3a1a15e2b
Fix vpi_put_value release on non-continuous signal ( #7231 ) ( #7241 )
2026-03-11 22:57:13 -04:00
cbf8d97a76
Tests: Misc string format test improvements
2026-03-11 19:58:52 -04:00
aca2c05ad9
Tests: Fix t_dump_json to not need sensitive golden file
2026-03-11 19:58:07 -04:00
d87035d187
Commentary: Fix non-grammar
2026-03-11 19:53:23 -04:00
be429ce956
Fix tracing of typedefed 1D packed arrays with --trace-structs ( #7237 )
...
Used to incorrectly unroll 1D packed arrays of 'bit' or 'logic' into
elements when using --trace-structs if the array element type was given
via a typedef. Keep them as a single signal instead.
2026-03-11 12:46:13 +00:00
f351882cf0
Fix enum range constraints missing for rand variables in sub-objects ( #7230 ) ( #7235 )
2026-03-11 07:21:40 -04:00
db9d782061
Commentary: Changes update
2026-03-11 07:10:41 -04:00
cd8818ca23
Fix randomize size+element queue constraints ( #5582 ) ( #7225 )
2026-03-11 06:51:32 -04:00
4e6eafd994
Allow constant expressions without parentheses in PATHPULSE$ declaration ( #7199 )
2026-03-11 06:01:33 -04:00
5bf1d060c9
Fix internal error when derived class calls this.randomize() with inherited rand members ( #7229 ) ( #7234 )
2026-03-10 19:03:18 -04:00
3ba9077726
Fix soft cross-object constraint priority inversion ( #7228 ) ( #7233 )
...
Emit nested constraint setup tasks in depth-first order (deepest first)
so outer-scope soft constraints get higher priority per IEEE 18.5.13.
2026-03-10 19:02:15 -04:00
a7a5c9f548
Improve not-found message to show cwd
2026-03-10 08:55:51 -04:00
2046879beb
V3Randomize: Fix dist operator inside ConstraintIf blocks ( #7221 ) ( #7224 )
...
The lowerDistConstraints() function was not recursing into ConstraintIf
nodes, causing dist operators inside if-else blocks to remain unlowered
and trigger an internal error when ConstraintExprVisitor encountered them.
Fix by adding recursive handling of ConstraintIf nodes in lowerDistConstraints:
- Check for AstConstraintIf nodes before AstConstraintExpr
- Recursively process thensp() and elsesp() branches
- This ensures all dist operators are lowered regardless of nesting
Test case: t_randomize_dist_conditional.v demonstrates conditional dist:
constraint c {
if (randd) {
x dist { 8'd0 := 1, 8'd255 := 3 }; // 25% / 75%
} else {
x dist { 8'd0 := 3, 8'd255 := 1 }; // 75% / 25%
}
}
Fixes #7221
2026-03-10 07:06:00 +00:00
1b2b8afdc1
Fix wrong $bits() for parameterized interface struct typedefs ( #7218 ) ( #7219 )
2026-03-09 22:32:13 -04:00
1f67080a1f
Tests: Verilog format
2026-03-09 21:39:16 -04:00
07ed6aef53
Tests: Verilog format
2026-03-08 18:26:40 -04:00
9c5f4e2483
Internals: Extend VerilatedVar to hold force control signal pointers ( #7217 )
2026-03-08 15:53:32 -04:00
0019c12242
Fix vpi_handle_by_name generated scope retrieval ( #7187 repair) ( #7214 )
...
Co-authored-by: Christian Hecken <christian.hecken@ibm.com>
2026-03-07 20:36:29 -05:00
3097df46fa
Change `--converge-limit` default to 10000 ( #7209 ).
...
Fixes #7209 .
2026-03-07 09:05:37 -05:00
67ced4715d
Tests: Fix t_json_only_debugcheck to not need sensitive golden file
2026-03-07 08:35:54 -05:00
4d369e4262
Fix --debug-inputs for .vlt files
2026-03-07 08:01:27 -05:00
cf965464a2
Tests: Verilog format
2026-03-07 08:00:45 -05:00
bef5c1f475
Fix static function not found from parameterized extends class ( #7204 ) ( #7208 )
2026-03-06 16:23:02 -05:00
efa53189ea
Support constraint `with` item.index array reduction ( #7198 )
2026-03-06 05:14:55 -05:00
cedec65c39
Change array tracing to always dump left index to right index ( #7205 )
...
Also add array bounds and struct/union member counts to trace pushPrefix
(not used by vcd/fst/saif). Together these improve consistency in some
waveform formats.
2026-03-06 09:32:08 +00:00
b89d29cab9
* Support procedural concurrent assertion simple cases ( #6944 ).
...
Fixes #6944 .
2026-03-05 20:03:48 -05:00
c2d65c2e13
* Fix class extend references between queues ( #7195 ).
...
Fixes #7195 .
2026-03-05 18:04:22 -05:00
45a5e72509
Fix recursive default assignment for subarrays ( #4589 ) ( #7202 )
2026-03-05 16:05:54 -05:00
4f4d48e9d7
Fix library/hier_block tracing when top name is empty ( #7200 )
2026-03-05 08:44:41 -05:00
258629634c
Support force assignments to array elements of real type ( #7048 )
2026-03-05 08:37:20 -05:00
e5ad9b3a4b
Support Z non-blocking assignment ( #7192 ) ( #496 ) ( #7197 )
2026-03-04 22:39:05 -05:00
572f50126b
Improve function call argument error to show target function (rewording)
2026-03-04 20:22:25 -05:00
c93f5256d4
Fix string cast on array call
2026-03-04 20:12:10 -05:00
4ff518de61
Verilog format
2026-03-04 20:12:10 -05:00
84f3cc4f48
Add VPI array indexing support in signal names ( #7097 ) ( #7187 )
2026-03-04 19:37:06 -05:00
1bf2ea7643
Improve function call argument error to show target function
2026-03-04 19:01:01 -05:00
7acd73fede
Fix super constructor calls with local variables, by using init functions ( #6214 ) ( #6933 )
2026-03-04 17:55:55 -05:00
c34cd6ddf1
Fix missing scope when calling package function ( #7128 repair) ( #7188 ) ( #7190 )
2026-03-04 15:37:55 -05:00
9a5c1d27c8
Support array reduction methods with 'with' clause in constraints ( #6455 ) ( #6999 )
2026-03-04 12:01:35 -05:00
44701201ac
Support inout inside SV interface ( #3466 ) ( #7134 )
2026-03-04 09:08:07 -05:00
7cf539cf05
Add --func-recursion-depth CLI option ( #7175 ) ( #7179 )
2026-03-04 06:46:07 -05:00
3bc73cc768
Support constraint imperfect distributions ( #6811 ) ( #7168 )
2026-03-03 11:23:14 -05:00
ce4d35aa85
Verilog format
2026-03-03 07:21:24 -05:00
5821d0697c
Fix interface localparam dependencies and arbitrary nesting ( #6936 ) ( #7128 )
2026-03-03 06:55:59 -05:00
ed84f3adb2
Support constraints on fixed-size array of class object members ( #7170 ) ( #7183 )
2026-03-03 06:27:31 -05:00
d406efdcf9
Fix recursive constant function in $unit scope ( #7174 ) ( #7178 )
2026-03-02 15:15:34 -05:00
8a413b3ec7
Fix std::randomize() in static function with static class members ( #7167 ) ( #7169 )
2026-03-02 05:59:00 -05:00
108d209bd7
Support soft constraint solving with last-wins priority ( #7124 ) ( #7166 )
2026-03-01 15:16:55 -05:00
6c48b3282e
Enable V3LiftExpr with code coverage ( #7164 )
2026-03-01 15:04:49 +00:00
3249fd8cc0
Internals: Mark Premit temporaries funcLocal, noReset ( #7160 )
2026-03-01 14:56:21 +00:00
9d8baa1e44
Testing: Relax expected file count in t_flag_csplit_groups ( #7163 )
2026-03-01 13:27:46 +00:00
77ce9cec1e
Optimize conditional merging across some impure statements ( #7159 )
...
- Allow reordering pure statements with DPI import calls iff no public
variables (including those read via a DPI export) are involved. This
ensures the DPI import can't observe the reordering
- Allow reordering of pure statements with AstDisplay and AstStop. This
requires an assumption that AstDisplay and AstStop will not read or
write model state other than via a VarRef explicitly present int the
Ast.
Overall this allows eliminating a lot of conditionals around assertions,
which were previously not possible.
2026-03-01 05:47:05 -05:00
230ce772c2
Tests: Verilog format; rename test
2026-02-28 18:19:34 -05:00
098fe96643
Add V3LiftExpr pass to lower impure expressions and calls ( #7141 )
...
Introduce new pass that converts impure expressions, or those with
function and method calls into simple assignment statements. Please see
the blurb at the top of the file why this is useful and how it works.
In particular currently it enables more Dfg optimization as functions
will be inlined without AstExprStmt.
Ideally we should enforce this lowering is applied to every procedural
statement (there are still a handful of exceptions). With that, long
term with this pass + #6820 , there should be no need to ever use an
AstExprStmt past this new lowering pass, which should enable more easier
optimization down the line.
Also ideally this should be run earlier. Currently it's after V3Tristate
as that calls pinReconnectSimple so we don't have to touch Cell ports.
Currently disabled when code coverage is enabled due to #7119 .
2026-02-28 22:20:09 +00:00
2ceea267e5
Fix eliminating assignments to DPI-read vaiables ( #7158 )
2026-02-28 10:09:01 -05:00
face700f29
Improve assignment-compatibility type check ( #2843 ) ( #5666 ) ( #7052 )
2026-02-28 09:55:06 -05:00
6f892d58ac
Fix forcing unpacked variables ( #7149 )
2026-02-28 09:53:41 -05:00
df6b808c49
Fix parameters inside std::randomize `with` clause ( #7140 )
2026-02-28 09:53:05 -05:00
8705bc56c8
Fix errant integer promotion ( #7012 )
2026-02-28 09:52:35 -05:00
02c1dbc5dc
Fix lambda coroutines ( #6106 ) ( #7135 )
2026-02-28 09:52:02 -05:00
1e6c1ab106
Add VPI callback support to --main ( #7145 ).
...
Fixes #7145 .
2026-02-28 09:42:28 -05:00
d40036239b
Fix wide conditional short circuiting ( #7155 ).
...
Fixes #7155 .
2026-02-28 09:40:10 -05:00
af65a85a1e
Fix function locals in display %p
2026-02-26 18:12:12 -05:00
3190442f86
Verilog format
2026-02-25 20:28:07 -05:00
6f96ff8df6
Tests: Limit test.build_jobs based on number of tests running
2026-02-25 20:27:07 -05:00
22290a74c2
Fix class initial-automatic insertion order ( #7086 repair)
2026-02-25 19:01:19 -05:00
d658517715
Change type definition error to show type chain with source context ( #7151 )
2026-02-25 14:47:13 -05:00
c28200c53a
Verilog format
2026-02-24 21:03:32 -05:00
10eafb9b3f
Add coverage type information to verilator_coverage annotation output ( #7131 ) ( #7133 ).
...
Fixes #7131 .
2026-02-24 20:59:42 -05:00
9bc88ff1bc
Fix finding single DPI exports from other scopes
2026-02-24 19:06:05 -05:00
7607f0e7fa
Support proper automatic/static initialization, and remove STATICVAR warning ( #6405 ). ( #7086 )
2026-02-24 14:04:43 -05:00
3992da6027
Tests: Add t_assign_func
2026-02-24 04:17:42 -05:00
1c41f87d67
Verilog format
2026-02-24 04:15:26 -05:00
387cc206b3
Tests: Rename t_always tests
2026-02-24 04:11:39 -05:00
6a5d3b0b72
Add --max-replication option ( #7139 )
2026-02-23 16:51:37 -05:00
8c7f08dfc3
Fix inlining of CFuncs with reloop locals ( #7132 )
...
The recent V3InlineCFuncs only checks AstCFunc::varsp for locals, but
V3Reloop used to insert them into AstCFunc::stmtsp resulting in multiple
locals with the same name being inlined into the caller if the stars
align. Fix Reloop. Such things will also go away with #6280 .
2026-02-23 17:35:15 +00:00
97fd6a5a13
Support vpiScalarVal
2026-02-22 20:04:06 -05:00
1e5a6901c8
Internals: Make AstWith explicit in AstCMethodHard ( #7129 )
...
This makes it consistent with other usage in NodeFTaskRef. Also AstWith
is no longer a NodeExpr.
2026-02-22 15:38:28 -05:00
f74a581d97
Tests: Enforce SPDX-FileCopyrightText
2026-02-22 15:23:19 -05:00
e238a2ca5e
Verilog format
2026-02-22 13:50:01 -05:00
38d5da7a24
Tests: Fix t_fork_join_none_capture for other simulators
2026-02-22 11:36:22 -05:00
1717df0261
Support solve..before constraints ( #5647 ) ( #7123 )
2026-02-22 11:33:18 -05:00
443678d8c4
Support array reduction methods without 'with' clause in constraints for dynamic arrays ( #7104 ) ( #7108 )
2026-02-22 09:23:02 -05:00
79e1f33173
Fix new <obj> shallow copy not preserving polymorphic runtime type ( #7105 ) ( #7109 )
2026-02-22 09:22:37 -05:00
78ee787bb1
Internals: Clean up AstArg usage in AstNodeFTaskRef ( #7121 )
...
- Strengthen type of AstNodeFTaskRef::pinsp to be List[AstArg]
- Rename 'pinsp' to 'argsp'
- Add default constructor arguments
2026-02-22 10:38:37 +00:00
e023113b79
Internals: Carry 'with' clause as op4 on AstNodeFTaskRef ( #7114 )
...
op4 is now available to carry the 'with' clause explicitly instead of
being part of the argument lit. Will strengthen 'pinsp' to be
List[AstArg] next.
2026-02-22 09:15:28 +00:00
a4ad255438
Fix extending class by a typedef ( #6679 ) ( #6855 )
2026-02-21 11:13:22 +05:30
0051d91555
Fix too-short bit pack returning wrong value ( #7111 ).
...
Fixes #7111 .
2026-02-20 22:25:02 -05:00
67cc65e6f3
Fix randomize of real ( #7115 ).
...
Fixes #7115 .
2026-02-20 19:39:20 -05:00
c970743b07
Tests: Renames. No test change.
2026-02-20 18:54:36 -05:00
f25a85ea57
Fix associative array size() constraint generating invalid resize() call ( #7103 ) ( #7112 )
2026-02-20 10:54:02 -05:00
e0edb49f7a
Support 'this' keyword inside inline randomize() with {} constraint blocks ( #7102 ) ( #7113 )
2026-02-20 10:53:34 -05:00
52a6de29cb
Internals: Remove unused AstNodeFTaskRef::namep() ( #7110 )
2026-02-20 10:52:54 -05:00
2d86f1373e
Support vpiBitVar ( #7107 ).
...
Fixes #7107 .
2026-02-20 05:39:38 -05:00
ace9a34c10
Internal: Fix clang override warning ( #7106 repair).
2026-02-19 21:34:17 -05:00
0d2fcfd49d
Fix circular class reference %p-printing causing infinite recursion ( #7106 ).
...
Fixes #7106 .
2026-02-19 20:15:37 -05:00
4a4f8c6698
Optimize continuous assignments with function on RHS in Dfg ( #7096 )
2026-02-19 18:21:55 +00:00
d6f8425e16
Tests: Update t_uvm_dpi ( #7097 test)
2026-02-19 07:11:36 -05:00
2309d52fd6
Tests: Cleanup t_uvm_dpi. No test change.
2026-02-19 07:05:33 -05:00
ff3028aca3
Support `disable iff` with sequences ( #7090 )
2026-02-19 11:33:30 +01:00
0e26b049ea
Support function calls with random arguments in constraints ( #7061 ) ( #7083 )
2026-02-19 15:37:55 +05:30
f843780aad
Add UNSUPPORTED on $sampled in sensitivity list ( #7093 )
2026-02-19 08:36:21 +01:00
702d6ede09
Fix time to not advance after `$finish` ( #7095 ).
...
Fixes #7095 .
2026-02-18 19:36:36 -05:00
2cd8dc6cf7
Optimize functions inlined from packages in Dfg ( #7091 )
2026-02-18 19:11:33 +00:00
cf1de0b9a8
Fix interface internal type reference ( #6920 ) ( #6966 )
2026-02-18 09:38:42 +05:30
da28c67e60
Fix #0 delays to control fork scheduling ( #6730 repair) ( #6891 )
...
Signed-off-by: Artur Bieniek <abieniek@internships.antmicro.com>
2026-02-17 21:51:11 -05:00
7176bdcff6
Optimize always blocks using local temporary variables in Dfg ( #7085 )
...
Enable synthesis of blocks that use a variable only within certain
branches, if that variable is not externally observable.
2026-02-17 20:00:55 +00:00
5d0352ab46
Fix conditional expressions in constraints ( #7087 )
2026-02-17 11:40:15 -05:00
81d1d79585
Tests: Cleanup t_cover_assert
2026-02-17 08:47:43 -05:00
089672b200
Tests: Improve t_lint_unused_func_bad.v
2026-02-17 06:20:42 -05:00
5834f22944
Optimize logic and variable removal early in Dfg ( #7081 )
...
After conversion of Ast to Dfg, but before synthesizing AstAlways into
primitives, run a pass to remove variables that are not observable, and
all logic that only computes such variables. This can get rid of a lot
of content early so we don't build redundant Dfgs, and also enables
synthesizing always blocks that use temporaries only in some branches,
which will come in a follow up.
2026-02-17 08:28:06 +00:00
ed2f018729
Tests: Improve t_var_static_assign_decl_bad
2026-02-17 02:18:56 -05:00
7182e8d937
Internals: Track what variables get user initial assignment.
2026-02-17 02:05:05 -05:00
6c5dee5043
Change automatic variables to not be traced.
2026-02-17 01:38:39 -05:00
300be3e388
Verilog format
2026-02-16 23:21:53 -05:00
ed3aa43657
Fix enum variables in constraint solver producing invalid enum values ( #7058 ) ( #7065 )
2026-02-16 22:44:38 -05:00
4357aee09a
Fix randomize() on null object handle crashing instead of returning 0 ( #7059 ) ( #7066 )
2026-02-16 22:43:57 -05:00
5173f7e42f
Fix inside operator crash with impure expression and unsized range literals ( #7063 ) ( #7067 )
2026-02-17 08:33:31 +05:30
994ef82e76
Support unique constraint on explicit array element subsets ( #7057 ) ( #7064 )
2026-02-16 19:46:46 -05:00
7fc428f518
Fix randomize() null pointer dereference ( #7026 )
2026-02-16 19:43:59 -05:00
8491d6a80c
Support force assignments to unpacked structs ( #7060 )
2026-02-17 05:35:07 +05:30
c21498293e
Internals: Minor cleanups preparing for initialization fixes.
2026-02-16 08:10:29 -05:00
Yilou Wang
Igor Zaworski
em2machine
Christian Hecken
Wilson Snyder
Alex Zhou
Geza Lore
Artur Bieniek
Rahul Behl
Pawel Kojma
Veripool API Bot
Rahul Behl
Julian Carrier
Ryszard Rozak
Nick Brereton
Igor Zaworski
jalcim
Kamil Danecki
Todd Strader
AUDIY