Changelog:
Verilator 4.030 2020-03-08
Add split_var metacomment to assist UNOPTFLAT fixes, #2066. [Yutetsu TAKATSUKASA]
Add support for $dumpfile and $dumpvars, #2126. [Alexander Grobman]
Add support for dynamic arrays, #379.
Add +verilator+noassert flag to disable assertion checking. [Tobias W\303\266lfel]
Add check for assertOn for asserts, #2162. [Tobias W\303\266lfel]
Add --structs-packed for forward compatibility.
Fix genblk naming with directly nested generate blocks, #2176. [Alexander Grobman]
Implement $displayb/o/h, $writeb/o/h, etc, #1637.
Use gcc -Os in examples instead of -O2 for better average performance.
Fix undeclared VL_SHIFTR_WWQ, #2114. [Alex Solomatnikov]
Verilator 4.028 2020-02-08
Support attributes (public, isolate_assignments, etc.) in configuration files.
Add -match to lint_off to waive warnings. [Philipp Wagner]
Link Verilator binary partially statically, #2146. [Geza Lore]
Verilation speed improvements, #2133, #2138. [Geza Lore]
Support libgoogle-perftools-dev's libtcmalloc if available, #2137. [Geza Lore]
Support $readmem/$writemem with assoc arrarys, #2100. [agrobman]
Support type(expression) operator and $typename, #1650.
Support left justified $display, #2101. [Pieter Kapsenberg]
Support string character access via indexing.
Support enum.next(k) with constant k > 1, #2125. [Tobias Rosenkranz]
Support parameter access from arrays of interfaces, #2155. [Todd Strader]
Add parameter values in XML. #2110. [Pieter Kapsenberg]
Add loc column location in XML (replaces fl), #2122. [Pieter Kapsenberg]
Add error on misused define. [Topa Tota]
Add parameter to set maximum signal width, #2082. [\303\230yvind Harboe]
Add warning on genvar in normal for loop, #2143. [yurivict]
Fix VPI scope naming for public modules. [Nandu Raj]
Fix FST tracing of enums inside structs. [fsiegle]
Fix WIDTH warning on
Fix OpenSolaris issues, #2154. [brancoliticus]
Verilator 4.026 2020-01-11
Docker images are now available for Verilator releases.
Support bounded queues.
Support implication operator "|->" in assertions, #2069. [Peter Monsson]
Support string compare, ato*, etc methods, #1606. [Yutetsu TAKATSUKASA]
Support immediate cover statements.
Ignore `uselib to end-of-line, #1634. [Frederic Antonin]
Update FST trace API for better performance.
Add vpiTimeUnit and allow to specify time as string, #1636. [Stefan Wallentowitz]
Add error when `resetall inside module (IEEE 2017-22.3).
Add cleaner error on version control conflicts in sources.
Fix little endian cell ranges, #1631. [Julien Margetts]
Fix queue issues, #1641, #1643. [Peter Monsson, Stefan Wallentowitz]
Fix strcasecmp for windows, #1651. [Kuba Ober]
Fix disable iff in assertions. Closes#1404. [Peter Monsson]
Fix huge case statement performance. Closes#1644. [Julien Margetts]
Fix tracing -1 index arrays. Closes#2090. [Yutetsu Takatsukasa]
Fix expand optimization slowing --lint-only. Closes#2091. [Thomas Watts]
Fix %{number}s with strings. #2093. [agrobman]
Fix shebang breaking some shells. Closes#2067. [zdave]
Verilator 4.024 2019-12-08
Support associative arrays (excluding [*] and pattern assignments), bug544.
Support queues (excluding {} notation and pattern assignments), bug545.
Add +verilator+error+limit to see more assertion errors. [Peter Monsson]
Support string.toupper and string.tolower.
Support $rewind and $ungetc.
Support shortreal as real, with a SHORTREAL warning.
Add -Wpedantic and -Wno-context for compliance testing.
Add error on redefining preprocessor directives. [Piotr Binkowski]
Support $value$plusargs float and shorts, bug1592, bug1619. [Garrett Smith]
Fix gate lvalue optimization error, bug831. [Jonathon Donaldson, Driss Hafdi]
Fix color assertion on empty if, bug1604. [Andrew Holme]
Fix for loop missing initializer, bug1605. [Andrew Holme]
Fix hang on concat error, bug1608. [Bogdan Vukobratovic]
Fix VPI timed callbacks to be one-shot, pull5. [Matthew Ballance]
Fix // in filenames, bug1610. [Peter Nelson]
Fix $display("%p") to be closer to IEEE.
Fix labels on functions with returns, bug1614. [Mitch Hayenga]
Fix false unused message on __Vemumtab, msg3180. [Tobias Rosenkranz]
Fix assertion on dotted parameter arrayed function, bug1620. [Rich Porter]
Fix interface reference tracing, bug1595. [Todd Strader]
Fix error on unpacked concatenations, bug1627. [Driss Hafdi]
Verilator 4.022 2019-11-10
Add --protect-lib, bug1490. [Todd Strader]
Add cmake support, bug1363. [Patrick Stewart]
Examples have been renamed.
Add --protect-ids to obscure information in objects, bug1521. [Todd Strader]
Add --trace-coverage.
Add --xml-output.
Support multithreading on Windows. [Patrick Stewart]
Suppress 'command failed' on normal errors.
Support some unpacked arrays in parameters, bug1315. [Marshal Qiao]
Add interface port visibility in traces, bug1594. [Todd Strader]
Increase case duplicate/incomplete to 16 bit tables, bug1545. [Yossi Nivin]
Support quoted arguments in -f files, bug1535. [Yves Mathieu]
Optimize modulus by power-of-two constants, and masked conditionals.
Fix detecting missing reg types, bug1570. [Jacko Dirks]
Fix multithreaded yield behavior when no work. [Patrick Stewart]
Fix bad-syntax crashes, bug1548, bug1550-1553, bug1557-1560, bug1563, bug1573-1577, bug1579, bug1582-1591. [Eric Rippey]
Fix false CMPCONST/UNSIGNED warnings on "inside", bug1581. [Mitch Hayenga]
Verilator 4.020 2019-10-06
Support $fseek, $ftell, $frewind, bug1496. [Howard Su]
Add --public-flat-rw, bug1511. [Stefan Wallentowitz]
Support vpiModule, bug1469. [Stefan Wallentowitz]
Make Syms file honor --output-split-cfuncs, bug1499. [Todd Strader]
Fix make test with no VERILATOR_ROOT, bug1494. [Ahmed El-Mahmoudy]
Fix error on multidimensional cells, bug1505. [Anderson Ignacio Da Silva]
Fix config_rev revision detection on old versions.
Fix false warning on backward indexing, bug1507. [Hao Shi]
Fix vpiType accessor, bug1509, bug1510. [Stefan Wallentowitz]
Fix ugly error on interface misuse, bug1525. [Bogdan Vukobratovic]
Fix misc bad-syntax crashes, bug1529-bug1533. [Eric Rippey]
Fix case statements with strings, bug1536. [Philipp Wagner]
Verilator 4.018 2019-08-29
When showing an error, show source code and offer suggestions of replacements.
When showing an error, show the instance location, bug1305. [Todd Strader]
Add --rr, bug1481. [Todd Strader]
Change MULTITOP to warning to help linting, see manual.
Add XSim support to driver.pl, bug1493. [Todd Strader]
Show included-from filenames in warnings, bug1439. [Todd Strader]
Fix elaboration time errors, bug1429. [Udi Finkelstein]
Fix not reporting some duplicate signals/ports, bug1462. [Peter Gerst]
Fix not in array context on non-power-of-two slices, msg2946. [Yu Sheng Lin]
Fix system compile flags injection. [Gianfranco Costamagna]
Fix enum values not being sized based on parent, bug1442. [Dan Petrisko]
Fix internal error on gate optimization of assign, bug1475. [Oyvind Harboe]
Add --dpi-hdr-only, bug1491. [Todd Strader]
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