Commit Graph

5991 Commits

Author SHA1 Message Date
Geza Lore 197f11044e
Internals: Split reorder transfrom from V3Split to V3Reorder (#6976) 2026-02-01 05:09:40 +00:00
Geza Lore f0afcede10
Internals: Use pure expressions in V3Randomize (#6974) 2026-02-01 05:09:19 +00:00
Geza Lore 122ceb2258
Internals: Fix use of Expr as Stmt in V3Assert (#6280) (#6973) 2026-02-01 05:08:41 +00:00
Geza Lore bef709a235
Optimize wide word shifts by multiple of word size (#6970)
V3Expand wide SHIFTL and SHIFTR if the shift amount is know and is a
multiple of VL_EDATA_SIZE. This case results in each word requiring a
simple copy from the original, or store of a constant zero, which
subsequent V3Subst can then eliminate.
2026-02-01 05:07:57 +00:00
Geza Lore cea4c88e12
Optimize more wide operation temporaries with substitution (#6972)
A temporary introduced by V3Premit could not be eliminated in V3Subst if
it was involved in an expression that did a write back to a
non-temporary. To enables removing these, we need to track all variables
in V3Subst, not just the ones we would consider for elimination. Note
the new implementation is marginally faster than the old one even though
it does more work. It can eliminate ~5% more of wide temporaries on some
designs. Algorithm is largely the same.
2026-02-01 05:07:13 +00:00
Wilson Snyder 07ce0ac2ea
Internals: Move CReset under Assign (#6978) 2026-01-31 21:27:36 -05:00
Geza Lore d9234501e0
Optimize concatenations that produce unused bits in DFG (#6971)
Concatenations that are only used by Sel expressions that do not consume
some bits on the edges can be narrowed to not compute the unused bits.

E.g.: `{a[4:0], b[4:0]}[5:4]` -> `{a[0], b[4]}[1:0]`

This is a superset or the PUSH_SEL_THROUGH_CONCAT DFG pattern, which is
removed.
2026-01-31 17:28:14 +00:00
Geza Lore 0915ae6ba8
Optimize string temporaries - do not localize (#6969)
Minor performance improvement, especially for assertions heavy code.
Strings are often used as temporaries in unlikely branches. Do not
localize them to avoid an unnecessary initialization on function entry.
2026-01-31 16:05:35 +00:00
Geza Lore f472c2da6e
Change metacomment extra underscore error to warning (#6968)
Used to throw a hard v3error on stray underscores in metacomments.
Issue a BADVLTPRAGMA that can be turned off instead.
2026-01-31 15:16:20 +00:00
Pawel Kojma b9ef4a6c48
Add parsing of coverpoint identifier in place of covergroup range list (#6961) 2026-01-30 07:05:57 -05:00
Wilson Snyder 996ae35a1b Fix associative array of events causes C++ compile error (#6962). 2026-01-29 20:38:50 -05:00
Wilson Snyder 5547833dde Add UNSUPPORTED error on IEEE complex ports (#2844 partial) 2026-01-28 19:14:10 -05:00
Wilson Snyder 913cf07491 Improve converge-limit error message 2026-01-28 18:32:50 -05:00
Pawel Kojma 30e6cd9092
Fix accessing non-rand struct member in constraints (#6960) 2026-01-28 07:33:16 -05:00
Geza Lore 7875552354
Internals: Add stats/dump of circular logic in scheduling (#6953) 2026-01-28 10:45:23 +00:00
Wilson Snyder 7c6c6a684b Add SPDX copyright identifiers, and get 'reuse' clean. No functional change. 2026-01-26 20:24:34 -05:00
Wilson Snyder d3ecba7699 Internals: Cleanup some verilog.y dead since IEEE 2017 2026-01-26 15:51:19 -05:00
Todd Strader 67df517bec
Fix type assignments for arrays of parameter types (#6955) 2026-01-26 15:50:52 -05:00
Wilson Snyder 1b9f38f78f Fix parameterized virtual interface references that have no model references (#4286).
Fixes #4286.
2026-01-25 14:25:42 -05:00
Wilson Snyder 41b131389e Internals: Some tristate and param cleanups. No functional change. 2026-01-25 14:19:27 -05:00
Wilson Snyder 140b2f2b2e Internals: V3Tristate cleanups. No functional change. 2026-01-24 18:13:34 -05:00
Wilson Snyder ad5005f8f5 Internals: Add user#Or functions. No functional change. 2026-01-24 18:10:59 -05:00
Wilson Snyder 07b61d3745 Fix internal error when fork under always expression (#6911). 2026-01-23 22:11:04 -05:00
github action 2737a22793 Apply 'make format' 2026-01-24 03:01:38 +00:00
Cameron Waite 567fba3695
Fix null pointer dereference in class member trigger expressions (#6946) 2026-01-23 22:00:43 -05:00
Todd Strader bc3c5b32dd
Fix delayed initial assignment (#6929) 2026-01-23 12:53:40 -05:00
Artur Bieniek a7db9ee32f
Add error when accessing a non-static class field from a static function (#6948) 2026-01-23 10:18:24 -05:00
Wilson Snyder ddbcd66722 Support `extern module` as a forward-declaration that is ignored. 2026-01-22 19:00:26 -05:00
Wilson Snyder 86cd249816 Add instance module location helper when pin not found 2026-01-21 07:50:46 -05:00
Pawel Kojma c4dcdeab9a
Add parsing of solve-before inside foreach (#6934) 2026-01-20 07:14:11 -05:00
Vikash Patel ea9752ab43
Fix typo in Verilator report output ("alloced" → "allocated") (#6937) 2026-01-19 08:31:22 -05:00
Wilson Snyder ac4f9f013e Fix static call after covergroup (#6916 repair) 2026-01-18 19:58:33 -05:00
Wilson Snyder db9bd3a792 Fix clocking unsupported tristate assign error (#6942).
Fixes #6942.
2026-01-18 16:28:48 -05:00
Jose Drowne 3a080ef543
Add IEEE 4-state type lint checks (#3645 partial) (#6895) 2026-01-18 11:00:25 -05:00
Wilson Snyder 50b6954cfc Internals: cppcheck cleanups 2026-01-17 23:18:09 -05:00
Wilson Snyder b7382be0b6 Fix `--top-module` with underscores (#6940). 2026-01-17 20:33:02 -05:00
Jose Drowne 12080dfcb1
Internals: Add AST nodes for tagged union parsing (#6867 partial) (#6881) 2026-01-17 14:15:52 -05:00
github action 26ebb14c98 Apply 'make format' 2026-01-17 17:03:54 +00:00
Wei-Lun Chiu 3b6674386c
Support unbounded '$' in inside range expressions (#6935) (#6938) 2026-01-17 12:03:00 -05:00
github action f6532728f6 Apply 'make format' 2026-01-17 15:35:34 +00:00
emmettifelts e6be548f72
Fix segfault after assignment pattern XOR error (#6928) (#6931) 2026-01-17 10:34:36 -05:00
Wilson Snyder 913cf933e9 Fix segfault in missing extends (#6903).
Fixes #6903.
2026-01-16 19:57:23 -05:00
Srinivasan Venkataramanan 6fc9089a77
Support `unique` constraints (on 1D static arrays) (#6810) (#6878) 2026-01-16 08:42:09 -05:00
Igor Zaworski 550cf4462d
Fix of dynamic scheduler temporary varable locations (#6859) (#6926) 2026-01-15 06:53:00 -05:00
Pawel Kojma 3072907ea4
Fix unpacked array concatenation function arguments (#6900) 2026-01-14 16:23:55 -05:00
Artur Bieniek 4563501192
Fix error when calling non-static method (#6916) 2026-01-14 08:40:57 -05:00
Wilson Snyder 09ca7ea8d1 Fix emitting unbounded parameters (#6912).
Fixes #6912.
2026-01-12 22:56:23 -05:00
Wilson Snyder 8a24897c13 Fix `foreach` with mid-index empty commas (#6910).
Fixes #6910.
2026-01-12 19:17:17 -05:00
Wilson Snyder a3d0f16185 Fix syntax error on unsupported defparam array (#6915). 2026-01-12 17:34:10 -05:00
Yilou Wang 31f8be0b85
Support detailed failure info for constraint violations (#6617) (#6883)
* logging for the unsatisfied constraints

* Apply 'make format'

* fix teh quote error in the array indexing

* Apply 'make format'

* Len change for the hash for randomity when named assertion is used

* seperate name assertion and satisfied case

* Apply 'make format'

* simply comments and display info

* refine code and fix protect case

* format

* update display in test and .out file

* add an enable flag and warning type, add a protect_id version test and update out files

* Apply 'make format'

* simplify some comments

* update out file, ready to be merged.

* update .py file to set the hash key solid

* rename and reformate the warning message to follow the verilator style

* add a nowarn test

* Apply 'make format'

* ordering

---------

Co-authored-by: Udaya Raj Subedi <075bei047.udaya@pcampus.edu.np>
Co-authored-by: github action <action@example.com>
2026-01-12 15:53:49 +01:00
Wilson Snyder 54b130e43f Add check for automatic variable in continuous assignment LHS 2026-01-10 18:54:27 -05:00
Wilson Snyder bc5b120156 Tests: Add include warnings to t_dist_warn_coverage 2026-01-10 04:08:08 -05:00
Christian Hecken 338afff23c Support vpi_put/vpi_get forcing of signals (#5933) (#6704). 2026-01-10 03:48:46 -05:00
Wilson Snyder a98eb4fa04 Internals: Add missing debug level setter. 2026-01-10 03:10:33 -05:00
Yutetsu TAKATSUKASA b926fcb762
Improve signedness of packed array (#6901) (#6902)
* Tests: Add a test whether signedness of a packed array is properly implemented.

* Fix signedness of a packed array when named type is not used.

* Fix signedness of the entire packed array.
2026-01-10 09:06:37 +09:00
Pawel Kojma d664aec8b8
Fix segfault in V3Slice (#6899) 2026-01-10 06:15:01 +09:00
Wilson Snyder 3b1a7af74d Fix WIDTHEXTEND suppression on add/sub with single-bit signal. 2026-01-09 00:25:12 -05:00
Wilson Snyder b0fdea5535 Improve error message 2026-01-09 00:09:28 -05:00
Bartłomiej Chmiel 7e3cd8af65
Fix tracing signals with escaped dots in names (#6897) 2026-01-08 15:10:19 -05:00
Ryszard Rozak 97d5844f2e
Support dynamic array elements in std::randomize (#6896) 2026-01-08 09:02:28 -05:00
Yilou Wang 6abfaf23a5
fix access flags in MemberSel randomization assignments (#6892) 2026-01-08 09:02:13 +01:00
Wilson Snyder c75fb4cdae Improve format of runtime errors, especially DIDNOTCONVERGE 2026-01-08 01:01:54 -05:00
Ryszard Rozak da14e7c4bb
Fix `disable iff` in simple properties (#6890) 2026-01-07 07:02:52 -08:00
Bartłomiej Chmiel c7361f177b
Fix large debug_str for emitted Syms headers (#6889) 2026-01-07 13:18:54 +00:00
Luca Colagrande 112e1e3752
Fix overlapping case item expressions (#6825) (#6886) 2026-01-06 15:07:25 -05:00
Geza Lore 45349990a1
Omit -v farg with --dump-inputs (#6885) 2026-01-06 19:07:33 +00:00
Igor Zaworski d5784b8cf2
Trigger virtual interfaces in proper place (#6844) 2026-01-06 07:15:33 -05:00
Wilson Snyder b2bcce33e8 Internals: Rename visiting class. No functional change. 2026-01-05 22:53:49 -05:00
Matthew Ballance 8c977133c6
Fix use-after-free error (#6846) 2026-01-05 20:06:42 -05:00
Jakub Wasilewski 72a6da5ac8
Support complex expressions as std::randomize arguments (#6860) 2026-01-05 14:37:36 -05:00
Yilou Wang 7023f38d12
Fix VarRef lookup for module-level variables (#6741) (#6882) 2026-01-05 10:39:22 -05:00
Ryszard Rozak cc11ff8c53
Fix dynamic array elements passed to ref argument (#6877) 2026-01-01 10:21:09 -05:00
em2machine c388e793e0
Fix MULTIDRIVEN with task and default driver (#4045) (#6858) 2026-01-01 10:20:21 -05:00
Wilson Snyder 40cf3c4b16 Remove deprecated `--make cmake`. 2026-01-01 09:27:20 -05:00
Wilson Snyder a7b80966ec Remove `--xml-only`. 2026-01-01 09:23:05 -05:00
Wilson Snyder 13327fa9c0 Copyright year update. 2026-01-01 07:22:09 -05:00
Wilson Snyder 4080284e53
Fix warning lint directive ordering and consistency (#4185) (#5368) (#5610) (#6876). 2025-12-30 20:31:34 -05:00
Wilson Snyder 2025b81614
Internals: Refactor V3Error, and handle UNDRIVEN/UNSUPPORTED/WIDTH consistently (#6874) 2025-12-30 07:08:25 -05:00
Kaleb Barrett aa94219531
Support vpiSigned (#6868) (#6870) 2025-12-29 20:12:19 -05:00
Wilson Snyder 2e394c3c04 Internals: Refactor some V3Error code handling and add tests. No functional change intended. 2025-12-29 18:17:24 -05:00
Wilson Snyder 4775399716 Commentary: spelling 2025-12-28 21:30:16 -05:00
Wilson Snyder 2318adabd3 Fix JSON output case statements (#6733). 2025-12-26 22:43:06 -05:00
Wilson Snyder 7a2b20cff3 Fix formatting of %p to be spaceless 2025-12-26 21:45:52 -05:00
Wilson Snyder b50e8bb9c1 Internals: Add '--debug-runtime-timeout' 2025-12-26 12:59:35 -05:00
Wilson Snyder 397e64903c Fix typedef `::` class reference error (#6862). 2025-12-24 10:01:46 -05:00
Wilson Snyder 1b93033690 Add `--quiet-build` to suppress make/compiler informationals. 2025-12-23 19:21:42 -05:00
Wilson Snyder 5dc05e1fa8 Internals: Update some JSON references. No functional change. 2025-12-23 10:13:23 -05:00
Krzysztof Bieganski a2fcd37c08
Fix unsupported `if` virtual interface warning (#6558) (#6861) 2025-12-23 10:12:34 -05:00
Wilson Snyder f6b966ed16 Fix `randc` on extended class (#6852). 2025-12-21 19:56:55 -05:00
Wilson Snyder 1d7f5ed33e Commentary 2025-12-21 18:55:51 -05:00
Wilson Snyder 4201450a8a Fix class reference throwing cannot detect changes error (#6851). 2025-12-21 18:44:55 -05:00
Wilson Snyder ef5ca74e94 Tests: Better handle multiline statements in t_dist_warn_coverage 2025-12-21 16:15:33 -05:00
Jose Drowne c0a0f0dab9
Optimize inlining small C functions and add `-inline-cfuncs` (#6815) 2025-12-21 13:14:50 -05:00
Thomas Aldrian 361ab194ff
Internals: Modport expression parsing and tests (#2601 partial) (#6848) 2025-12-21 08:58:21 -05:00
Wilson Snyder a64b083b2a Fix JSON missing `signed` indication (#6845). 2025-12-20 22:11:09 -05:00
Wilson Snyder ffa87540cc Fix randcase under fork (#6843). 2025-12-20 21:25:01 -05:00
Geza Lore f990dd747e
Change metacomments to not enable warnings disabled in control file (#6836) (#6842)
Track the location based message/feature enable bits separately for code
and control file directives. A message/feature is disabled if disabled
either in the control file, or in code directives/metacomments. That is,
enabled only if both agree should be enabled.
2025-12-20 06:33:46 -05:00
em2machine 3ceac0b37e
Fix parameterized class module parameters (#6754) (#6834) 2025-12-19 12:57:15 -05:00
Pawel Kojma 5244766b7b
Support reduction or in constraints (#6840) 2025-12-19 12:37:20 -05:00
Yangyu Chen 47d1a50aa4
Fix setting thread count in VerilatedContext (#6826 partial) (#6841) 2025-12-19 10:59:43 -05:00