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1714 Commits

Author SHA1 Message Date
Wilson Snyder
2e9e4ae110 Add an URL on warnings to point to the manual's description. 2021-04-18 10:17:05 -04:00
Wilson Snyder
39d9ecfe51 Fix cmake version number (#2881) 2021-04-13 09:10:29 -04:00
Wilson Snyder
adce7ecf4b Documentation has been rewritten into a book format. 2021-04-11 18:55:06 -04:00
Wilson Snyder
e2c11cceb8 Fix select of with index variable (#2880). 2021-04-08 19:35:03 -04:00
Wilson Snyder
5658d7238d Commentary 2021-04-03 13:11:26 -04:00
Wilson Snyder
c62546c761 Add --coverage-max-width (#2853). 2021-03-29 18:54:51 -04:00
Wilson Snyder
e0808bcd15 Commentary 2021-03-26 23:05:04 -04:00
Wilson Snyder
4155de721b Fix Cygwin example compile issues (#2856). 2021-03-26 23:01:58 -04:00
Wilson Snyder
7ea014dab5 Fix false WIDTHCONCAT on casted constant (#2849). 2021-03-23 19:49:57 -04:00
Wilson Snyder
b6c393e9f0 Add VerilatedCovContext::forcePerInstance (#2793). 2021-03-19 22:24:00 -04:00
Wilson Snyder
96f9f8558b Mark --no-relative-cfuncs as scheduled for deprecation. 2021-03-17 18:59:45 -04:00
Wilson Snyder
c20bced485 Fix --output-split with class extends (#2839). 2021-03-17 18:25:54 -04:00
Wilson Snyder
dfab80fab1 Fix false TIMESCALEMOD on generate-ignored instances (#2838). 2021-03-16 22:52:29 -04:00
Wilson Snyder
26c0fa0a6a Fix --timescale-override not suppressing TIMESCALEMOD (#2838). 2021-03-16 22:42:28 -04:00
Wilson Snyder
12eb4e85ac Changed TIMESCALEMOD from error into a warning. (#2838) 2021-03-16 21:58:15 -04:00
Wilson Snyder
f79e59b226 Commentary 2021-03-16 21:17:55 -04:00
Wilson Snyder
8350c381c2 Add EOFNEWLINE warning when missing a newline at EOF. 2021-03-14 21:23:48 -04:00
Wilson Snyder
50866e470a Commentary: Convert Changes to RST format 2021-03-14 14:12:58 -04:00
Wilson Snyder
e6b19d557e Fix false $dumpfile warning on model save (#2834). 2021-03-14 09:08:17 -04:00
Wilson Snyder
6a189a1f81 Fix exceeding command-line ar limit (#2834). 2021-03-13 15:09:10 -05:00
Wilson Snyder
ce79c4ebf9 Fix class unpacked-array compile error (#2774). 2021-03-13 12:47:19 -05:00
Wilson Snyder
1b4a82acde Verilated signals now use VlUnpacked in place of C arrays. (#2774) partial. 2021-03-13 12:37:19 -05:00
Wilson Snyder
1b985da2a1 devel release 2021-03-12 15:52:35 -05:00
Wilson Snyder
1b18a85e76 Version bump 2021-03-12 15:48:31 -05:00
Wilson Snyder
5022e81af7 Commentary 2021-03-12 14:14:21 -05:00
Wilson Snyder
c99f01b7fe Converted Asciidoc documentation into reStructuredText (RST) format. 2021-03-12 13:52:47 -05:00
Wilson Snyder
29ed866061 Fix range inheritance on port without data type (#2753). 2021-03-11 19:22:19 -05:00
Wilson Snyder
7469166c38 Fix or-reduction on different scopes broken in 4.110 (#2828). 2021-03-10 18:08:11 -05:00
Wilson Snyder
a9d61a8bff Increase devel version as next release will be 4.200 2021-03-07 11:40:10 -05:00
Wilson Snyder
2cad22a22a
Add simulation context (VerilatedContext) (#2660). (#2813) 
**   Add simulation context (VerilatedContext) to allow multiple fully independent
      models to be in the same process.  Please see the updated examples.
**   Add context->time() and context->timeInc() API calls, to set simulation time.
      These now are recommended in place of the legacy sc_time_stamp().
 2021-03-07 11:01:54 -05:00
Wilson Snyder
fec5e69ec5 --inhibit-sim is planned for deprecation, file a bug if this is still being used. 2021-02-28 09:26:06 -05:00
Wilson Snyder
dfd54a6abf devel release 2021-02-25 21:52:04 -05:00
Wilson Snyder
17b75c6428 Version bump 2021-02-25 21:43:33 -05:00
Wilson Snyder
1a5f599626 Commentary 2021-02-24 18:32:21 -05:00
Wilson Snyder
c95e606c0a Fix range inheritance on port without data type (#2753). 2021-02-24 18:21:13 -05:00
Wilson Snyder
fd6edd90bc Fix little endian interface pin swizzling (#2475). 2021-02-20 22:11:20 -05:00
Wilson Snyder
975c1b39a9 Fix little endian packed array pattern assignment (#2795). 2021-02-20 20:29:28 -05:00
Wilson Snyder
22e299e78e Support concat selection (#2721). 2021-02-17 23:03:47 -05:00
Wilson Snyder
43cf5693d1 Fix shifts by > 32 bit values (#2785). 2021-02-14 11:15:12 -05:00
Wilson Snyder
20b3f0efa0 Fix class extends with VM_PARALLEL_BUILDS (#2775). 2021-02-13 17:29:34 -05:00
Wilson Snyder
2b72218dd8 Fix examples not flushing vcd (#2787). 2021-02-13 17:06:53 -05:00
Wilson Snyder
05bb24df6c Fix $fread extra semicolon inside statements. 2021-01-26 22:20:16 -05:00
Wilson Snyder
64941538b7 Fix TIMESCALE warnings on primitives (#2763). 2021-01-23 10:31:41 -05:00
Wilson Snyder
945496d6d9 devel release 2021-01-10 13:36:46 -05:00
Wilson Snyder
484b76e5b3 Version bump 2021-01-10 13:34:59 -05:00
Wilson Snyder
801d850724 Commentary 2021-01-10 13:14:25 -05:00
Wilson Snyder
1a073fbf5e Fix vpiLeftRange on little-endian memories (#2696). 2021-01-02 22:00:13 -05:00
Wilson Snyder
83d978c2cd Fix generate for unrolling to be signed (#2730). 2021-01-02 21:43:13 -05:00
Wilson Snyder
bd602d0e2d Copyright year update 2021-01-01 10:29:54 -05:00
Wilson Snyder
72b2df30f8 Fix tracing empty sc module (#2729). 2020-12-28 11:13:58 -05:00
Wilson Snyder
1e34ae31d2 Fix vpi_release_handle to be called implicitly per IEEE (#2706). 2020-12-18 21:16:57 -05:00
Wilson Snyder
882b310897 Fix little endian packed array counting (#2499). 2020-12-13 16:23:59 -05:00
Wilson Snyder
82fc142c1c Add error on real to non-real output pins (#2690). 2020-12-13 13:33:48 -05:00
Wilson Snyder
8e25d2c61d Commentary (#2095). 2020-12-12 20:26:50 -05:00
Wilson Snyder
18f8c8a14f Fix error when dotted refers to missing module (#2095). 2020-12-12 20:25:00 -05:00
Wilson Snyder
d7af6436a2 Fix genblk naming to match IEEE (#2686). 2020-12-12 12:57:11 -05:00
Wilson Snyder
53ce708294 Fix showing reference locations for BLKANDNBLK (#2170). 2020-12-09 23:07:11 -05:00
Wilson Snyder
ab4ad9965c Fix DPI open array handling issues, and do internal coverage (#2350). 2020-12-09 22:15:34 -05:00
Wilson Snyder
47eeef485d Report UNUSED on parameters, localparam and genvars (#2627). 2020-12-07 19:49:50 -05:00
Wilson Snyder
74ef35d3b3 Support $cast and new CASTCONST warning. 2020-12-05 22:58:36 -05:00
Wilson Snyder
8582aed66a Add --top option as alias of --top-module. 2020-12-05 16:58:17 -05:00
Wilson Snyder
5fb834e41e Fix passing parameter type instantiations by position number. 2020-12-05 11:00:30 -05:00
Wilson Snyder
38c6085f54 devel release 2020-12-02 20:19:04 -05:00
Wilson Snyder
b350b6a0ff Version bump 2020-12-02 20:09:23 -05:00
Wilson Snyder
665e8edaff Support $monitor and $strobe. 2020-11-29 11:31:38 -05:00
Wilson Snyder
9a9931fb9d Support complex function arguments. 2020-11-28 13:46:14 -05:00
Wilson Snyder
cf2810db8b Change -sv option to select 1800-2017 instead of 1800-2005. 2020-11-27 21:49:47 -05:00
Wilson Snyder
a37866ee92 Support 'super'. 2020-11-26 11:06:59 -05:00
Wilson Snyder
6095efd84e Check for proper 'local' and 'protected' (#2228). 2020-11-25 07:03:01 -05:00
Wilson Snyder
bf24fa9478 Fix access to non-overridden base class variable (#2654). 2020-11-24 22:46:02 -05:00
Wilson Snyder
e85a2e860e Support 'with item.index'. 2020-11-23 23:18:58 -05:00
Wilson Snyder
b684995292 Support $random and $urandom seeds. 2020-11-19 21:32:33 -05:00
Wilson Snyder
fa77141519 Fix unpacked array parameters near functions (#2639). 2020-11-18 20:12:14 -05:00
Wilson Snyder
70b3a599ce Fix trace signal names getting hashed (#2643). 2020-11-16 18:11:27 -05:00
Wilson Snyder
297b297bc7 devel release 2020-11-14 10:00:01 -05:00
Wilson Snyder
02cb3d17a2 Version bump 2020-11-14 09:50:30 -05:00
Wilson Snyder
c3cfaf55ed Commentary 2020-11-14 09:26:38 -05:00
Wilson Snyder
fc52fb9093 Fix arrays of modport interfaces (#2614). 2020-11-08 22:43:32 -05:00
Wilson Snyder
d78941885b Fix cast width propagation (#2597). 2020-11-08 19:07:33 -05:00
Wilson Snyder
152689776d Report error on typedef referencing self (#2539). 2020-11-07 15:41:37 -05:00
Wilson Snyder
602750b1ee Commentary 2020-11-07 10:49:54 -05:00
Wilson Snyder
2a24bb4759 Fix queue poping wrong value when otherwise unused (#2512). 2020-11-07 10:37:55 -05:00
Wilson Snyder
2aedc91151 Support queue and associative array 'with' statements. (#2616) 2020-11-01 10:56:07 -05:00
Wilson Snyder
95d1272269 Support associative array pattern assignments and defaults. 2020-10-25 21:05:22 -04:00
Wilson Snyder
4cec3ff2a0 Fix WIDTH warnings on comparisons with nullptr (#2602). 2020-10-22 17:27:23 -04:00
Wilson Snyder
5d3dd52f13 Support queue slicing (#2326). 2020-10-18 13:23:39 -04:00
Wilson Snyder
470859f929 devel release 2020-10-15 08:26:36 -04:00
Wilson Snyder
77553d23fc Version bump 2020-10-15 08:21:57 -04:00
Wilson Snyder
79b1b07fcd Commentary 2020-10-14 07:30:15 -04:00
Wilson Snyder
215d3614c0 Fix preprocessor stringify of undefined macro. 2020-10-09 18:53:09 -04:00
Rafal Kapuscik
7be343fd7c Support 'this' (#2585). 2020-10-08 07:54:01 -04:00
Wilson Snyder
efbcb094ca Fix flushCall for backward compatibility (#2580). 2020-10-04 07:47:25 -04:00
Wilson Snyder
4ba2637360 Fix class wide member display (#2567). 2020-09-25 07:37:38 -04:00
Wilson Snyder
6430743b6f Fix method calls to package class functions (#2565). [Peter Monsson] 2020-09-22 09:09:10 -04:00
Wilson Snyder
0c49cca527 Fix $urandom_range passed variable (#2563). 2020-09-22 08:44:51 -04:00
Wilson Snyder
7a9e79ea79 Fix -G dropping public indication (#2561). 2020-09-21 08:29:57 -04:00
Wilson Snyder
430238a6b4 Support # as a comment in -f files (#2497). 2020-09-15 20:12:08 -04:00
Peter Monsson
d0819f156f
Add support for |=> inside properties (#1292). 2020-09-10 06:49:04 -04:00
Wilson Snyder
30f3774134 Support const object new() assignments. 2020-09-07 17:26:53 -04:00
Wilson Snyder
c1d35c8622 devel release 2020-09-07 09:42:13 -04:00
Wilson Snyder
16fba59480 Version bump 2020-09-07 09:26:03 -04:00
Peter Monsson
627d83e807
Add support for assume property (#2531) 2020-09-03 12:38:48 -04:00
Wilson Snyder
ba5779c69e Fix queues as class members (#2525). 2020-08-29 12:56:43 -04:00
Wilson Snyder
069eb97eca SystemC 2.3.0 or newer (SYSTEMC_VERSION >= 20111121) is now required. 2020-08-29 10:45:47 -04:00
Wilson Snyder
f7f3d3fd43 Fix splitting eval functions with --output-split-cfuncs (#2368). 2020-08-23 22:21:40 -04:00
Wilson Snyder
917d3b0fb3 Support virtual class 2020-08-23 20:27:25 -04:00
Wilson Snyder
f4a72946eb Support $urandom, $urandom_range without stability. 2020-08-23 08:42:50 -04:00
Wilson Snyder
4e6d2cfe38 Fix class constructor error on assignments to const. 2020-08-22 22:44:00 -04:00
Wilson Snyder
7f3a73e314 Fix naming of "id : begin" blocks. 2020-08-22 22:21:37 -04:00
Wilson Snyder
9702d11657 Support class extern. 2020-08-22 19:46:21 -04:00
Wilson Snyder
2d7d2c5992 Fix false DECLFILENAME on black-boxed modules (#2430). 2020-08-22 16:56:21 -04:00
Wilson Snyder
27181d534e Commentary 2020-08-17 07:57:38 -04:00
Wilson Snyder
7a33fe2bf2 devel release 2020-08-15 09:20:50 -04:00
Wilson Snyder
bdecf6c4e1 Version bump 2020-08-15 09:14:36 -04:00
Wilson Snyder
6fcf05e2b6 Commentary 2020-08-15 09:12:36 -04:00
Peter Monsson
4a5e4b04f3
Support $rose and $fell. (#2148) (#2501) 2020-08-14 07:37:10 -04:00
Wilson Snyder
20c906261b Fix casting non-self-determined subexpressions (#2493). 2020-08-09 20:59:06 -04:00
Wilson Snyder
98cd925fda Fix non-32 bit conversion to float (#2495). 2020-08-06 21:56:43 -04:00
Peter Monsson
1280070abb
Support $stable (#2488) 2020-07-28 18:26:24 -04:00
Wilson Snyder
a52f975bd7 Fix combining different-width parameters (#2484). 2020-07-26 17:54:23 -04:00
Wilson Snyder
bfea4b7f99 Fix arrayed interfaces, broke in 4.038 (#2468). 2020-07-15 17:58:26 -04:00
Wilson Snyder
1194dbf19c devel release 2020-07-11 09:18:40 -04:00
Wilson Snyder
0cd4a57ad9 Version bump 2020-07-11 09:05:24 -04:00
Wilson Snyder
1bd1e21a69 Change --enable-prec11 to --enable-prec11-final and give stronger warning 2020-07-11 08:56:40 -04:00
Wilson Snyder
b35b5aacfa Fix division exception (#2460) 2020-07-10 22:28:02 -04:00
Wilson Snyder
8cdecd5668 Commentary: Changes update 2020-07-10 18:18:02 -04:00
Wilson Snyder
0b09636c58 Support for-loop increments with commas. 2020-06-29 21:18:41 -04:00
Stefan Wallentowitz
8006b5479c
Missing entry in Changes for VPI parameters (#2417) 2020-06-13 05:22:12 -04:00
Wilson Snyder
35226d5e1a Commentary 2020-06-12 08:12:54 -04:00
Geza Lore
fac89c5d62
Close trace on vl_fatal/vl_finish (#2414) 
This is required to get the last bit of FST trace and close the FST file
properly on $stop or assertion failure.
 2020-06-12 07:15:42 +01:00
Wilson Snyder
6de78d58fa Add new UNSUPPORTED error code to replace most previous Unsupported: messages. 2020-06-09 19:20:16 -04:00
Wilson Snyder
a21947d887 Support --bbox-unsup parsing of 'with' 2020-06-06 11:11:23 -04:00
Wilson Snyder
aae2bf872c devel release 2020-06-06 07:51:54 -04:00
Wilson Snyder
04c0fc8aa7 Version bump 2020-06-06 07:48:47 -04:00
Wilson Snyder
a57826b125 Line Coverage now tracks all statement lines, not just branch lines. 2020-05-31 15:52:17 -04:00
Wilson Snyder
2e32387e5c Fix GCC false warning on array bounds. (#2386) 2020-05-30 13:47:53 -04:00
Wilson Snyder
279f21bb5b Configure now enables SystemC if it is installed as a system headers. 2020-05-28 18:51:46 -04:00
Wilson Snyder
b6d4899d3f Commentary 2020-05-28 18:09:31 -04:00
Wilson Snyder
cbafff8a71 Commentary 2020-05-27 21:52:55 -04:00
Geza Lore
622f59ad65
Set OPT_FAST=-Os as default (#2374) 2020-05-28 00:57:49 +01:00
Geza Lore
d737266f64
Add OPT_GLOBAL to use for run-time library (#2373) 
This allows compiling the run-time library with optimization even when OPT_FAST is not used in order to imporove model build speed, possibly during debug cycles.
 2020-05-27 01:52:08 +01:00
Stefan Wallentowitz
dc90e6c3c3
Generate file with waivers (#2354) 
This adds the flag --generate-waivefile <filename>. This will generate
a verilator config file with the proper lint_off statemens to turn off
warnings emitted during this particular run.

This feature can be used to start with using Verilator as linter and
systematically capture all known lint warning for further
elimination. It hopefully helps people turning of -Wno-fatal or
-Wno-lint and gradually improve their code base.

Signed-off-by: Stefan Wallentowitz <stefan.wallentowitz@hm.edu>
 2020-05-26 20:38:14 +02:00
Geza Lore
7b683fe258 Use sane --output-split values by default to help large builds 
--output-split is now on by default with value 20000.
--output-split-cfuncs and --output-split-ctrace now defaults to the
value of --output-split unless explicitly specified.
 2020-05-26 01:22:10 +01:00
Vassilis Papaefstathiou
a7432bdea7 Support wide operands in queues and dynamic arrays (#2352) 2020-05-23 21:59:56 -04:00
Wilson Snyder
d33d0301f8 Support verilator_coverage --write-info for lcov HTML reports. 2020-05-16 09:18:35 -04:00
Wilson Snyder
c1a9fe07e9 Support multi channel descriptor I/O (#2190) 
clang-format and Changes update. No functional change.
 2020-05-14 18:14:50 -04:00
Yossi Nivin
f9a0cf0cff
Support $countbits (#2287) 2020-05-10 14:27:22 -04:00
Wilson Snyder
070bcddf5a Support unpacked array .sum and .product. 2020-05-10 12:48:33 -04:00
Wilson Snyder
9375d9f603 Fix $isunknown with constant Zs. 2020-05-07 21:40:08 -04:00
Wilson Snyder
72bd91c7f1 Support $isunbounded and parameter $. (#2104) 2020-05-07 21:12:58 -04:00
Wilson Snyder
a41ea180fa Fix +: and -: on unpacked arrays. (#2304) 2020-05-04 19:40:50 -04:00
Geza Lore
8afcd67a1f Fix FST tracing of little endian vectors 2020-05-03 22:39:45 +01:00
Wilson Snyder
16e258eb4c Commentary: reformat changes, relocate announcements 2020-05-03 16:10:02 -04:00
Wilson Snyder
d6fbbddac9 devel release 2020-05-03 11:18:53 -04:00
Wilson Snyder
9dc65df982 Version bump 2020-05-03 11:14:37 -04:00
Wilson Snyder
8f64e4a76f Support $root, #2150. 2020-05-02 08:29:20 -04:00
Wilson Snyder
5ded80cf79 Fix MacOs Homebrew by removing default LIBS, #2298. 2020-04-30 19:53:21 -04:00
Wilson Snyder
a6deee2083 Fix clock enables with bit-extends, #2299. 2020-04-30 19:22:58 -04:00
Wilson Snyder
e1f45dd84a Commentary 2020-04-30 18:52:32 -04:00
Wilson Snyder
9fd4541069 Fix reduction OR on wide data, broke in v4.026, #2300. 2020-04-30 17:53:54 -04:00
Wilson Snyder
15ad3f46be Fix logical not optimization with empty begin, #2291. 2020-04-28 21:15:20 -04:00
Wilson Snyder
910803e6db Fix error on unpacked connecting to packed, #2288. 2020-04-27 18:38:54 -04:00
Wilson Snyder
87e1c36e4a Support event data type (with some restrictions). 2020-04-25 15:37:46 -04:00
Geza Lore
c52f3349d1
Initial implementation of generic multithreaded tracing (#2269) 
The --trace-threads option can now be used to perform tracing on a
thread separate from the main thread when using VCD tracing (with
--trace-threads 1). For FST tracing --trace-threads can be 1 or 2, and
--trace-fst --trace-threads 1 is the same a what --trace-fst-threads
used to be (which is now deprecated).

Performance numbers on SweRV EH1 CoreMark, clang 6.0.0, Intel i7-3770 @
3.40GHz, IO to ramdisk, with numactl set to schedule threads on different
physical cores. Relative speedup:

--trace     ->  --trace --trace-threads 1      +22%
--trace-fst ->  --trace-fst --trace-threads 1  +38% (as --trace-fst-thread)
--trace-fst ->  --trace-fst --trace-threads 2  +93%

Speed relative to --trace with no threaded tracing:
--trace                                 1.00 x
--trace --trace-threads 1               0.82 x
--trace-fst                             1.79 x
--trace-fst --trace-threads 1           1.23 x
--trace-fst --trace-threads 2           0.87 x

This means FST tracing with 2 extra threads is now faster than single
threaded VCD tracing, and is on par with threaded VCD tracing. You do
pay for it in total compute though as --trace-fst --trace-threads 2 uses
about 240% CPU vs 150% for --trace-fst --trace-threads 1, and 155% for
--trace --trace threads 1. Still for interactive use it should be
helpful with large designs.
 2020-04-21 23:49:07 +01:00
James Hanlon
97cbc10925 Add --flaten for use with --xml-only (#2270). 2020-04-21 18:14:08 -04:00
Wilson Snyder
39d7cbf412 Fix arrayed instances connecting to slices, #2263. 2020-04-17 19:30:53 -04:00
Wilson Snyder
d4f7f5297a
Support IEEE time units and time precisions, #234. (#2253) 
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".
 2020-04-15 19:39:03 -04:00
Wilson Snyder
9b8aebb00c Commentary on --build 2020-04-15 18:08:37 -04:00
Geza Lore
dc5c259069
Improve tracing performance. (#2257) 
* Improve tracing performance.

Various tactics used to improve performance of both VCD and FST tracing:
- Both: Change tracing functions to templates to take variable widths as
  template parameters. For VCD, subsequently specialize these to the
  values used by Verilator. This avoids redundant instructions and hard
  to predict branches.
- Both: Check for value changes via direct pointer access into the
  previous signal value buffer. This eliminates a lot of simple pointer
  arithmetic instructions form the tracing code.
- Both: Verilator provides clean input, no need to mask out used bits.
- VCD: pre-compute identifier codes and use memory copy instead of
  re-computing them every time a code is emitted. This saves a lot of
  instructions and hard to predict branches. The added D-cache misses
  are cheaper than the removed branches/instructions.
- VCD: re-write the routines emitting the changes to be more efficient.
- FST: Use previous signal value buffer the same way as the VCD tracing
  code, and only call the FST API when a change is detected.

Performance as measured on SweRV EH1, with the pre-canned CoreMark
benchmark running from DCCM/ICCM, clang 6.0.0, Intel i7-3770 @ 3.40GHz,
and IO to ramdisk:

            +--------------+---------------+----------------------+
            | VCD          | FST           | FST separate thread  |
            | (--trace)    | (--trace-fst) | (--trace-fst-thread) |
------------+-----------------------------------------------------+
Before      |  30.2 s      | 121.1 s       |  69.8 s              |
============+==============+===============+======================+
After       |  24.7 s      |  45.7 s       |  32.4 s              |
------------+--------------+---------------+----------------------+
Speedup     |    22 %      |   256 %       |   215 %              |
------------+--------------+---------------+----------------------+
Rel. to VCD |     1 x      |  1.85 x       |  1.31 x              |
------------+--------------+---------------+----------------------+

In addition, FST trace size for the above reduced by 48%.
 2020-04-14 00:13:10 +01:00
Geza Lore
8b2666cd04
Fix to make trace code allocation dense. (#2250) 
This looks like a bits/bytes bug. The affected m_codeInc member
determines how many 32-bit words to allocate in a buffer used to store
previous values of the signal, but this was off by a factor of 8, so
we used to use too much memory.

SweRV VCD tracing speed +6.5% (excluding IO, clang 6.0), due mainly to
reduced D cache misses.
 2020-04-11 16:00:43 +01:00
Geza Lore
05f213c266
VCD tracing speed improvements (#2246) 
* Don't inline VCD dump functions

Improves model speed with tracing. Measured on SweRW cmark:
- GCC 5.5      ~3% faster
- Clang 6.0    ~12% faster (!)

* Remove redundant test from VCD bit tracing.

Improves model speed with tracing. Measured on SweRW cmark:
 - GCC 5.5      ~7.5% faster
 - Clang 6.0    ~1.5% faster
 2020-04-09 08:19:26 -04:00
Geza Lore
0f617988d4
Compile fast tracing code with OPT_FAST in single compile mode. (#2245) 
When using the __ALL*.cpp based single compile mode (i.e.: without
VM_PARALLEL_BUILDS), the fast path tracing code used to be included in
__Allsup.cpp, which was compiled with OPT_SLOW, severely harming tracing
performance. We now have __ALLfast.cpp and __ALLslow.cpp instead of
__ALLcls.cpp and __ALLsup.cpp, so we can compile the fast support code
with OPT_FAST as well.
 2020-04-08 21:05:43 -04:00
Geza Lore
991d8b178b
Fix FST tracing performance by removing std::map from hot path. (#2244) 
This patch eliminates a major piece of inefficiency in FST tracing
support, by using an array to lookup fstHandle values corresponding
to trace codes, instead of a tree based std::map. With this change, FST
tracing is now only about 3x slower than VCD tracing. We do require
more memory to store the symbol lookup table, but the size of that is
still small, for the speed benefit.
 2020-04-08 17:54:35 -04:00
Wilson Snyder
914a6edd33 Add error if use SystemC 2.2 and earlier (pre-2011) as is deprecated. 2020-04-07 19:58:17 -04:00
Geza Lore
0cfa828572 Fix DPI import/export to be standard compliant, #2236. 2020-04-07 19:07:47 -04:00
Wilson Snyder
efaf375887 Configuring with ccache present now defaults to using it; see OBJCACHE in the manual. 2020-04-05 16:10:33 -04:00
Wilson Snyder
a494ad5ec7 Support $ferror, #1638. 2020-04-05 11:22:05 -04:00
Wilson Snyder
e55338f927 Support $fflush without arguments, #1638. 2020-04-05 10:11:28 -04:00
Wilson Snyder
6eadb8e771 Add simplistic class support with many restrictions, see manual, #377. 2020-04-05 09:30:23 -04:00
Wilson Snyder
b2228afd1a devel release 2020-04-04 08:50:56 -04:00
Wilson Snyder
d3797ade95 Version bump 2020-04-04 08:40:47 -04:00
Wilson Snyder
27516b565d Commentary 2020-04-03 20:08:24 -04:00
Wilson Snyder
c288a7bfb9 Add GCC10-style line number prefix when showing source text for errors. 2020-04-03 20:07:46 -04:00
Marco Widmer
7f9aa057bf
Support split_var in vit files (#2219) 2020-04-03 08:08:23 -04:00
Wilson Snyder
19abce5535 Suppress REALCVT for whole real numbers. 2020-04-01 18:43:53 -04:00
Wilson Snyder
e6beab4037 Fix implicit conversion of floats to wide integers. 2020-03-31 20:42:07 -04:00
Wilson Snyder
5c72f01598 Fix assertions with unique case inside, #2199. 2020-03-30 18:13:51 -04:00
Wilson Snyder
4145a38c47 Fix duplicate typedefs in generate for, #2205. 2020-03-26 18:10:20 -04:00
Wilson Snyder
590b1853d0 Fix packages as enum base types, #2202. 2020-03-24 17:57:12 -04:00
Wilson Snyder
08a51e3e09 Fix VCD open with empty filename, #2198. 2020-03-24 17:32:47 -04:00
Wilson Snyder
1e0e51edd3 Fix parameter type redeclaring a type, #2195. 2020-03-21 12:13:55 -04:00
Wilson Snyder
1ce360ed5b Add SPDX license identifiers. No functional change. 2020-03-21 11:24:24 -04:00
Wilson Snyder
5f63b24c50 Change --quiet-exit to also suppress 'Exiting due to N errors'. 2020-03-15 08:09:51 -04:00
Wilson Snyder
81c659957e Add column numbers to errors and warnings. 2020-03-14 22:02:42 -04:00
Wilson Snyder
8ccc17f30b Add setting VM_PARALLEL_BUILDS=1 when using --output-split, #2185. 2020-03-08 09:03:29 -04:00
Wilson Snyder
9392eac6a7 devel release 2020-03-08 08:40:33 -04:00
Wilson Snyder
95c4b6aaba Version bump 2020-03-08 08:38:53 -04:00
Wilson Snyder
2d52f525c5 Add --structs-packed for forward compatibility, #1541. 2020-03-07 10:51:06 -05:00
Wilson Snyder
e70cba77e6 Add support for dynamic arrays, #379. 2020-03-07 10:24:27 -05:00
Wilson Snyder
75ecad591a Implement $displayb/o/h, $writeb/o/h, etc, Closes #1637. 2020-03-05 21:49:25 -05:00