Commit Graph

5942 Commits

Author SHA1 Message Date
Geza Lore ca17904a62
Internals: Improve readability of selects in output (#6980) 2026-02-01 07:29:56 -05:00
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