Log message:
verilator: Update to 4.100
Changelog:
* Verilator 4.100 2020-09-07
** C++11 or newer compilers are now required.
** SystemC 2.3.0 or newer (SYSTEMC_VERSION >= 20111121) is now required.
** Support hierarchical Verilation (#2206). [Yutetsu TAKATSUKASA]
**** Support (with limitations) class extern, class extends, virtual class.
**** Support $urandom, $urandom_range without stability.
**** Fix false DECLFILENAME on black-boxed modules (#2430). [Philipp Wagner]
**** Fix naming of "id : begin" blocks.
**** Fix class constructor error on assignments to const.
**** Fix splitting eval functions with --output-split-cfuncs (#2368). [Geza Lore]
**** Fix queues as class members (#2525). [nanduraj1]
**** Add support for assume property. [Peter Monsson]
* Verilator 4.040 2020-08-15
** Version 4.040 is planned to be the final version that will
support pre-C++11 compilers. Please move to C++11 or newer compilers.
*** Fix arrayed interfaces, broke in 4.038 (#2468). [Josh Redford]
**** Support $stable, $rose and $fell. (#2148) (#2501) [Peter Monsson]
**** Support simple function localparams (#2461). [James Hanlon]
**** Miscellaneous parsing error changes towards UVM support.
**** Fix arrayed interfaces (#2469). [Josh Redford]
**** Fix protect lib VCS warning. (#2479) [Julien Margetts]
**** Fix combining different-width parameters (#2484). [abirkmanis]
**** Fix protect-lib without sequential logic (#2492). [Yutetsu TAKATSUKASA]
**** Fix V3Unknown from running with flat XML output (#2494). [James Hanlon]
**** Fix non-32 bit conversion to float (#2495). [dsvf]
**** Fix casting non-self-determined subexpressions (#2493). [phantom-killua]
**** Fix SystemC net names (#2500). [Edgar E. Iglesias]
**** Fix build with Bison 3.7 and newer (#2505). [Rupert Swarbrick]
**** Fix slice of unpacked array (#2506) (#2507). [Yutetsu TAKATSUKASA]
* Verilator 4.038 2020-07-11
** Versions 4.038 and 4.040 are planned to be the final versions that will
support pre-C++11 compilers. Please move to C++11 or newer compilers.
*** Support VPI access to parameters and localparam. [Ludwig Rogiers]
*** Support parsing (not elaboration, yet) of UVM.
**** Add new UNSUPPORTED error code to replace most previous Unsupported: messages.
**** With --bbox-unsup continue parsing on many (not all) UVM constructs.
**** Support for-loop increments with commas.
**** Support $swrite with arbitrary arguments.
**** Support $writememb (#2450). [Fan Shupei]
**** Fix OS X, Free BSD, and -m32 portability issues. [Geza Lore]
**** Fix to flush FST trace on termination due to $stop or assertion failure.
**** Fix part select error when multipling by power-of-two (#2413). [Conor \
McCullough]
**** Fix division exception (#2460) [Kuoping Hsu]
* Verilator 4.036 2020-06-06
** OPT_FAST is now -Os by default. See the BENCHMARKING & OPTIMIZATION part
of the manual if you experience issues with compilation speed.
*** Configure now enables SystemC if it is installed as a system headers,
e.g. with 'apt-get install systemc-dev'.
*** Add --waiver-output flag that writes a verilator config file (.vlt) with
waivers to the warnings emitted during a Verilator run.
*** Support verilator_coverage --write-info for lcov HTML reports.
Line Coverage now tracks all statement lines, not just branch lines.
*** --output-split is now on by default. VM_PARALLEL_BUILDS is set by
default iff the --output-split caused an actual file split to occur.
--output-split-cfuncs and --output-split-ctrace now default to the
value of --output-split. These changes should improve build times of
medium and large designs with default options. User makefiles may
require changes.
*** The run-time library is now compiled with -Os by default. (#2369, #2373)
**** Support multi channel descriptor I/O (#2190) [Stephen Henry]
**** Support $countbits. (#2287) [Yossi Nivin]
**** Support $isunbounded and parameter $. (#2104)
**** Support unpacked array .sum and .product.
**** Support prefix/postfix increment/decrement. (#2223) [Maciej Sobkowski]
**** Fix FST tracing of little bit endian signals. [Geza Lore]
**** Fix +: and -: on unpacked arrays. (#2304) [engr248]
**** Fix $isunknown with constant Z's.
**** Fix queues and dynamic array wide ops. (#2352) [Vassilis Papaefstathiou]
* Verilator 4.034 2020-05-03
** Add simplistic class support with many restrictions, see manual. (#377)
** Support IEEE time units and time precisions. (#234)
Includes `timescale, $printtimescale, $timeformat.
VL_TIME_MULTIPLIER, VL_TIME_PRECISION, VL_TIME_UNIT have been removed
and the time precision must now match the SystemC time precision. To
get closer behavior to older versions, use e.g. --timescale-override
"1ps/1ps".
** Add --build to call make automatically. (#2249) [Yutetsu TAKATSUKASA]
** Configuring with ccache present now defaults to using it; see OBJCACHE.
** Fix DPI import/export to be standard compliant. (#2236) [Geza Lore]
** Add --trace-threads for general multithreaded tracing. (#2269) [Geza Lore]
*** Add --flatten for use with --xml-only. (#2270) [James Hanlon]
**** Greatly improve FST/VCD dump performance (#2244) (#2246) (#2250) (#2257) \
[Geza Lore]
**** Support $ferror, and $fflush without arguments. (#1638)
**** Support event data type (with some restrictions).
**** Support $root. (#2150) [Keyi Zhang]
**** Add error if use SystemC 2.2 and earlier (pre-2011) as is deprecated.
**** Fix build of fast path tracing code to use OPT_FAST. (#2245) [Geza Lore]
**** Fix arrayed instances connecting to slices. (#2263) [Don/engr248]
**** Fix error on unpacked connecting to packed. (#2288) [Joseph Shaker]
**** Fix logical not optimization with empty begin. (#2291) [Baltazar Ortiz]
**** Fix reduction OR on wide data, broke in v4.026. (#2300) [Jack Koenig]
**** Fix clock enables with bit-extends. (#2299) [Marco Widmer]
**** Fix MacOs Homebrew by removing default LIBS. (#2298) [Ryan Clarke]
* Verilator 4.032 2020-04-04
*** Add column numbers to errors and warnings.
*** Add GCC 9-style line number prefix when showing source text for errors.
*** Add setting VM_PARALLEL_BUILDS=1 when using --output-split. (#2185)
*** Change --quiet-exit to also suppress 'Exiting due to N errors'.
**** Suppress REALCVT for whole real numbers.
**** Support split_var in vlt files. (#2219) [Marco Widmer]
**** Fix parameter type redeclaring a type. (#2195) [hdzhangdoc]
**** Fix VCD open with empty filename. (#2198) [Julius Baxter]
**** Fix packages as enum base types. (#2202) [Driss Hafdi]
**** Fix duplicate typedefs in generate for. (#2205) [hdzhangdoc]
**** Fix MinW portability. (#2114) [Sean Cross]
**** Fix assertions with unique case inside. (#2199) [hdzhangdoc]
**** Fix implicit conversion of floats to wide integers.
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Log message:
verilator: Update to 4.030
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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Log message:
Update to 4.016
Changelog:
* Verilator 4.016 2016-06-16
*** Add --quiet-exit, bug1436. [Todd Strader]
**** Error continuation lines no longer have %Error prefix.
**** Support logical equivalence operator <->.
**** Support VerilatedFstC set_time_unit, bug1433. [Pieter Kapsenberg]
**** Support deferred assertions, bug1449. [Charles Eddleston]
**** Mark infrequently called functions with GCC cold attribute.
**** Fix sign-compare warning in verilated.cpp, bug1437. [Sergey Kvachonok]
**** Fix fault on $realtime with %t, bug1443. [Julien Margetts]
**** Fix $display with string without %s, bug1441. [Denis Rystsov]
**** Fix parameter function string returns, bug1441. [Denis Rystsov]
**** Fix invalid XML output due to special chars, bug1444. [Kanad Kanhere]
**** Fix performance when mulithreaded on 1 CPU, bug1455. [Stefan Wallentowitz]
**** Fix type and real parameter issues, bug1427, bug1456, bug1458. [Todd Strader]
**** Fix build error on MinGW, bug1460. [Richard Myers]
**** Fix not reporting some duplicate signals, bug1462. [Peter Gerst]
**** Fix --savable invalid C++ on packed arrays, bug1465. [Alex Chadwick]
**** Fix constant function return of function var, bug1467. [Roman Popov]
* Verilator 4.014 2019-05-08
*** Add --trace-fst-thread.
**** Support '#' comments in $readmem, bug1411. [Frederick Requin]
**** Support "'dx" constants, bug1423. [Udi Finkelstein]
**** For FST tracing use LZ4 compression. [Tony Bybell]
**** Add error when use parameters without value, bug1424. [Peter Gerst]
**** Auto-extend and WIDTH warn on unsized X/Zs, bug1423. [Udi Finkelstein]
**** Fix missing VL_SHIFTL_ errors, bug1412, bug1415. [Larry Lee]
**** Fix MinGW GCC 6 printf formats, bug1413. [Sergey Kvachonok]
**** Fix test problems when missing fst2vcd, bug1417. [Todd Strader]
**** Fix GTKWave register warning, bug1421. [Pieter Kapsenberg]
**** Fix FST enums not displaying, bug1426. [Danilo Ramos]
**** Fix table compile error with multiinterfaces, bug1431. [Bogdan Vukobratovic]
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