60cbbf0ec1
Add error on mismatching prototypes ( #6207 ).
2025-08-11 19:50:47 -04:00
762c5f573c
Improve DFG to enable breaking more combinational cycles
2025-08-11 09:44:31 +01:00
7696b0651c
Internals: Improve DFG dumping functions
2025-08-10 16:48:40 +01:00
eb80db9397
Clarify extern error message
2025-08-10 08:38:26 -04:00
641dd756c0
Add check for mis-assignment of dynamic/automatics per IEEE
2025-08-10 07:23:28 -04:00
a74a3bb689
Internals: No need for 'if' before VL_FFLUSH_I
2025-08-10 06:13:18 -04:00
d28436dccc
Fix stray ']' in Verilog code output for non-constant select ( #6277 )
2025-08-09 14:59:58 +01:00
3ca1c9b6dd
Internals: Fix and enforce brace new constructors. No functional change intended.
2025-08-08 18:21:12 -04:00
16d32cdd4a
Internals: Refactor Ast to Dfg conversion for reusability. ( #6276 )
...
This is mainly code motion, with minimal algorithmic changes to
facilitate reusing parts in future code. No functional change intended.
2025-08-08 22:53:12 +01:00
d1f851e1e1
Internals: Optimize empty 'if' into StmtExpr
2025-08-08 05:10:40 -04:00
6a225d5d00
Internals: Remove AstSysFuncAsTask
2025-08-08 05:09:54 -04:00
5b7188fcaf
Fix same variable on the RHS forced to two different LHSs. ( #6269 )
2025-08-06 17:37:00 -04:00
dc049fdd74
Apply 'make format'
2025-08-06 21:30:37 +00:00
218659f4e8
Support parameter resolution of 1D unpacked array slices ( #6257 ) ( #6268 )
2025-08-06 17:29:40 -04:00
6c1cfc68cf
Fix dynamic cast purity ( #6267 )
...
Signed-off-by: Igor Zaworski <izaworski@internships.antmicro.com>
2025-08-06 07:09:44 -04:00
c005486acf
Support by ignoring delay2 on UDPs
2025-08-05 17:34:42 -04:00
6467351752
Add error on class 'function static'.
2025-08-05 17:12:00 -04:00
870c398094
Fix incorrect Non-ANSI I/O declaration conflict error ( #6258 ) broke with #bd1ac038
2025-08-05 16:33:28 -04:00
86c56e8e14
Fix true cycle detection in DFG
2025-08-05 15:04:07 +01:00
25d968b833
Fix infinite loop in VString::replaceSubstr
...
If the replaced string was a suffix of the replacement, we used to get
an infinite loop.
2025-08-05 14:41:38 +01:00
158a54a7ff
Defer deletion of eliminated Ast variables until end of Dfg pass. ( #6263 )
...
This is currently unnecessary but future patch will depend on it.
2025-08-05 14:29:33 +01:00
8c9a4fec83
Emit memory addresses of vertices in Dfg dumps
2025-08-05 13:03:57 +01:00
53332ae03e
Unify the two DFG cycle finding algorithms. ( #6262 )
...
Both V3DfgBreakCycles.cpp and V3DfgDecomposition.cpp used to contain an
implementation of the same algorithm to color strongly connected
components. Now there is only one, and it lives in V3DfgColorSCCs.cpp.
2025-08-05 13:03:30 +01:00
4a5935d248
Merge DFG components made acyclic into the original acyclic sub-graph. ( #6261 )
...
After making a cyclic DFG component acyclic, merge that component back
into the acyclic sub-graph of the input graph. This enables optimizing
through the components that were made acyclic in their larger context.
2025-08-05 12:11:02 +01:00
78c9e7773a
Allow more variable removal in scoped DFG ( #6260 )
2025-08-05 11:18:33 +01:00
d2edab458e
Refactor Dfg variable flags ( #6259 )
...
Store all flags in a DfgVertexVar relating to the underlying
AstVar/AstVarScope stored via AstNode::user1(). user2/user3/user4 are
then usable by DFG algorithms as needed.
2025-08-05 10:24:54 +01:00
d415757b0e
Remove unhelpful DFG debug dumps
2025-08-05 05:06:44 +01:00
7d2b6bd921
Internals: Optimize updates of Vtogcov signals. No functional change intended. ( #6110 )
2025-08-04 13:29:56 +01:00
52ac3b3a0d
Add error on too many pattern members for structure
2025-08-03 17:26:51 -04:00
f106c1eaec
Fix genvar check to be more strict about generate-for usage only
2025-08-03 16:57:12 -04:00
309129ebcf
Add PARAMNODEFAULT error, for parameters without defaults.
2025-08-03 15:27:37 -04:00
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
36577bb549
Add check for missing 'parameter' on implicit types
2025-08-02 17:02:45 -04:00
473d54aa95
Internals: Fis emit spacing etc. No functional change
2025-08-02 13:47:07 -04:00
dca504c706
Internals: Use UINFOTREE istead of dumpTree
2025-08-02 13:44:40 -04:00
f9bdab65f0
Fix coverage of variables of complex types ( #6250 )
2025-08-01 13:24:18 +02:00
61f4c97f40
Support unassigned virtual interfaces ( #5265 ) ( #6245 )
2025-08-01 12:39:13 +02:00
d0f0919830
Fix write of 0 in '%c' ( #6248 ) ( #6249 )
2025-08-01 07:54:18 +02:00
bd1ac03828
Add I/O versus data declaration checking.
2025-07-31 18:38:50 -04:00
d8f1e1113a
Fix error when force assignment is used with ref function args ( #6244 )
2025-07-31 12:48:37 +02:00
9d38e63269
Remove error on missing forward declarations of typedef in class ( #6207 ).
2025-07-30 09:14:13 -04:00
9d2adf3e49
Internals: Enable EmitV to output formatted code to std::ostream ( #6239 )
...
Introduce V3OutStream as a V3OutFormatter that writes to a stream
instead of a file. This can be used to emit formatted code fragments
e.g. in debug prints and graph dumps.
2025-07-30 13:41:21 +02:00
2b62f5a625
Add error when trying to assign class object to variable of non-class types ( #6237 )
2025-07-30 09:48:02 +02:00
0da9f6eb03
Fix queue typedef with unbounded slice ( #6236 ).
2025-07-28 19:36:52 -04:00
a5b0a0d9dd
Add support for `$countones` in constraints ( #6144 ) ( #6235 )
2025-07-28 16:14:03 +02:00
0bd291e6cd
Fix unused variable compile error ( #6222 partial)
2025-07-28 02:27:55 -04:00
5c1d7f3ce9
Fix negate of wide structure selections ( #6186 ).
2025-07-28 02:20:57 -04:00
e69df457fd
Fix MODDUP with duplicate packages to take first package ( #6222 ).
2025-07-28 01:45:03 -04:00
47c5b220b3
Support non-ansi ports with `wire` before `input`
2025-07-27 17:13:56 -04:00
64a82508f2
Fix error on `with` to give UNSUPPORTED ( #6134 )
2025-07-27 16:12:16 -04:00
bd2cb989d1
Support bit queue streaming ( #5830 ) ( #6103 ).
2025-07-27 15:29:56 -04:00
92a4bff047
Apply 'make format'
2025-07-27 14:31:15 +00:00
d359fffcdc
Internals: Refactor V3Task and add loop assert ( #6218 )
2025-07-27 10:30:19 -04:00
c4b3f1e99c
Tests: Add test and assert for nested simulated loops ( #6223 )
2025-07-27 09:43:46 -04:00
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
1725ee9c52
Fix loop initialization visibility outside loop ( #4237 ).
2025-07-27 03:42:41 -04:00
d93abd002f
Internals: V3Unroll refactoring. No functional change intended
2025-07-27 03:36:41 -04:00
470f99694e
Revert d8dbb08a: Support bit queue streaming ( #5830 ) ( #6103 )
2025-07-26 17:59:52 -04:00
f3560837ec
Add error on missing forward declarations ( #6207 ).
2025-07-26 17:11:35 -04:00
d8dbb08a95
Support bit queue streaming ( #5830 ) ( #6103 )
2025-07-26 16:53:51 -04:00
c2e0f496bd
Internals: Free up 32 bits in FileLine.
...
Limits columns to 16M columns, or may report wrong column on such long lines.
Limits single token to 64K lines, or may report wrong line for that token.
2025-07-26 15:55:33 -04:00
39a5c731ac
Tests: Fix missing forward decls ( #6202 partial)
2025-07-26 15:48:19 -04:00
42e1c83875
Internals: Add some FileLine stats
2025-07-26 15:46:25 -04:00
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
94ef630490
Apply 'make format'
2025-07-26 06:45:26 +00:00
d289934ca9
Improve `--skip-identical` to skip on identical input file contents ( #6109 ).
2025-07-26 02:43:57 -04:00
f1826a7c20
Support Verilog real to SystemC double ( #6136 ) ( #6158 )
2025-07-25 20:05:36 +02:00
fa62cd3486
Fix `--stats` overridden by skipping identical build ( #6220 ).
2025-07-25 07:23:02 -04:00
10ac99ac05
Support randomization of scope variables with 'std::randomize()' ( #5438 ) ( #6185 )
2025-07-25 12:13:46 +02:00
b408e097f6
Fix unsigned replicate ( #6229 )
2025-07-24 22:55:26 -04:00
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
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
e995646898
Internals: Favor std::array. No functional change intended.
2025-07-24 02:39:03 -04:00
2287d420ee
Optimize to return memory when using -build ( #6192 ) ( #6226 ).
2025-07-24 08:36:58 +02:00
db5b2669fc
Add current memory usage statistic ( #6192 partial)
2025-07-24 08:36:58 +02:00
460bfbf181
Fix replicate of negative giving 'REPLICATE has no expected width' internal error ( #6048 ).
2025-07-23 18:07:50 -04:00
050e5ddb5b
Fix internal error after bad method
2025-07-23 17:17:35 -04:00
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
763183f067
Internals: Remove AstWhile::precondsp() ( #6219 ). No functional change intended.
2025-07-23 08:50:39 -04:00
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
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
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
b5126a6abe
Apply 'make format'
2025-07-21 23:29:42 +00:00
74d4b0c0ea
Fix automatic task variables in unrolled loops with forks ( #6194 ) ( #6201 ).
2025-07-21 19:28:50 -04:00
7401a8a43a
Refactor DFG IndependentBits analysis to work for any vertex. ( #6209 )
...
This used to be restricted to variable vertices, but now can handle
arbitrary circular vertices that represent packed values. It also
converges faster than the earlier version. Prep for resolving loops
through arrays.
2025-07-21 19:57:02 +01:00
7646e7d89c
Exclude SystemC variables from DFG ( #6208 )
...
SystemC variables are fairly special (they can only be assigned to/from,
but not otherwise participate in expressions), which complicates some
DFG code. These variables only ever appear as port on the top level
wrapper, so excluding them from DFG does not make us loose any
optimizations, but simplifies internals.
2025-07-21 18:32:08 +01:00
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
98b8d43a4a
Fix parameter-dependent type linking ( #6170 )
2025-07-21 07:30:10 -04:00
d419c49921
Internals: Fix unused variable, no functional change ( #6204 )
...
Signed-off-by: Bartłomiej Chmiel <bchmiel@antmicro.com>
2025-07-21 07:28:01 -04:00
a50ea2a1a6
Optimize 2 ** X to 1 << X if base is signed ( #6203 )
2025-07-20 09:56:34 -04:00
078bb21a89
Add wire data type checking per IEEE.
2025-07-20 07:21:30 -04:00
b8b9478938
Improve enum base type checking error message.
2025-07-19 22:37:07 -04:00
641e0e5672
Internals: Fix assertion if bad display
2025-07-19 21:12:10 -04:00
9d146eae16
Fix VPI signal range order ( #6189 ) ( #6200 )
2025-07-19 20:22:02 -04:00
7d43a935bd
Add SPECIFYIGN warning for specify constructs that were previously silently ignored.
2025-07-18 19:32:34 -04:00
9b99d9697f
Fix virtual interface member propagation ( #6175 ) ( #6184 )
2025-07-18 09:07:31 -04:00
a21ecb2ab9
Add support for randomize..with on objects of aliased types ( #6195 )
2025-07-18 13:04:47 +02:00
28808f38bb
Dump function to which AstAddrOfCFunc points ( #6188 )
2025-07-18 08:37:00 +02:00
7a6775ca84
Internals: Rename memPeakUsageBytes
2025-07-17 22:16:59 -04:00
e527ff49a3
Report `--stats` final results after build phase
2025-07-17 20:41:46 -04:00
Wilson Snyder
Geza Lore
Artur Bieniek
github action
Michael Bedford Taylor
Igor Zaworski
Ryszard Rozak
Szymon Gizler
Rodrigo Batista de Moraes
Paul Swirhun
Paul Swirhun
George Polack
Yilou Wang
Danny Oler
Bartłomiej Chmiel
Max Wipfli
Ibrahim Burak Yorulmaz