Commit Graph

2144 Commits

Author SHA1 Message Date
Wilson Snyder
ef9f443532 Fix single-element replication to dynarray/unpacked/queue (#3548). 2023-01-31 22:43:41 -05:00
Wilson Snyder
aea1834ed8 Commentary (#3920) 2023-01-31 12:11:35 -05:00
Wilson Snyder
6a12c4d02a Commentary: Changes update 2023-01-29 16:57:30 -05:00
Wilson Snyder
6a7dfb7696 Fix pattern assignment to unpacked structs (#3510). 2023-01-29 16:50:10 -05:00
Wilson Snyder
a19dddf05e Fix real parameters of infinity and NaN. 2023-01-28 22:11:09 -05:00
Wilson Snyder
248bd173d3 Support interface classes and class implements. 2023-01-28 18:06:37 -05:00
Wilson Snyder
f20997a2f0 Support global clocking and $global_clock. 2023-01-28 12:31:52 -05:00
Wilson Snyder
93517b8378 Support unpacked unions. 2023-01-27 22:41:12 -05:00
Wilson Snyder
665758a68b devel release 2023-01-22 11:55:22 -05:00
Wilson Snyder
5b8941d717 Version bump 2023-01-22 11:52:21 -05:00
Wilson Snyder
5cd3d831bb Commentary: Changes update 2023-01-22 08:59:06 -05:00
Wilson Snyder
c2bdd06fcc Fix VPI one-time timed callbacks (#2778). 2023-01-21 13:43:27 -05:00
Wilson Snyder
e94023367f Fix elaboration of member selected classes (#3890). 2023-01-19 17:44:27 -05:00
Wilson Snyder
035bf13e4a Fix foreach unnamedblk duplicate error (#3885). 2023-01-18 21:48:06 -05:00
Wilson Snyder
5fce23e90d Fix empty case items crash (#3851). 2023-01-10 07:18:12 -05:00
Wilson Snyder
30f6831be6 Commentary: Changes update 2023-01-07 14:54:12 -05:00
Wilson Snyder
b24d7c83d3 Copyright year update 2023-01-01 10:18:39 -05:00
Wilson Snyder
3ccb2e0f2d Fix initiation of function variables (#3815). 2022-12-23 10:51:52 -05:00
Wilson Snyder
71d29a235f Commentary: Changes update 2022-12-20 19:51:17 -05:00
Wilson Snyder
bae60ab8ea devel release 2022-12-14 22:08:39 -05:00
Wilson Snyder
4cefccf5d2 Version bump 2022-12-14 21:59:58 -05:00
Wilson Snyder
01b521a0ea Commentary: Changes update 2022-12-11 15:10:23 -05:00
Wilson Snyder
afc66f6a85 Fix make jobserver with submakes (#3758). 2022-12-11 14:19:40 -05:00
Wilson Snyder
722e38f532 Commentary, part of last commit (#3783) 2022-12-11 13:30:00 -05:00
Wilson Snyder
3f4d4dec77 Fix ENUMVALUE on typedef (#3777) 2022-12-11 11:50:22 -05:00
Wilson Snyder
a0e7930036 docs: Fix spelling 2022-12-09 22:39:41 -05:00
Wilson Snyder
e465a30eee Fix lint_off EOFNEWLINE in .vlt files (#3796). 2022-12-01 18:27:36 -05:00
Wilson Snyder
d87ef8394a Fix CASEINCOMPLETE when covers all enum values (#3745) (#3782).
Co-authored-by: "G-A. Kamendje" <gkamendje@gmail.com>
2022-11-30 19:42:21 -05:00
Wilson Snyder
8ff607f679 Deprecate verilated_fst_sc.cpp and verilated_vcd_sc.cpp (#3507) 2022-11-29 22:17:50 -05:00
Wilson Snyder
f4be3d5d2b Fix empty string literals converting to string types (#3774). 2022-11-27 13:28:57 -05:00
Wilson Snyder
aacb38b776 Support assignment expressions. 2022-11-19 15:23:37 -05:00
Wilson Snyder
3c77c7bb92 Support and 2022-11-16 21:10:54 -05:00
Wilson Snyder
c6ecd60993 Support pre_randomize and post_randomize. 2022-11-13 11:59:40 -05:00
Wilson Snyder
d25834e57b Add ENUMVALUE warning when value misused for enum (#726). 2022-11-12 20:11:05 -05:00
Wilson Snyder
0a045a7bf6 Change ENDLABEL from warning into an error. 2022-11-12 12:09:48 -05:00
Wilson Snyder
a427860825 Support randcase. 2022-11-11 21:53:05 -05:00
Wilson Snyder
227e61f891 Fix comparing ranged slices of unpacked arrays. 2022-11-11 18:01:30 -05:00
Wilson Snyder
9d7c4d9af3 Fix wait 0. 2022-11-11 17:18:59 -05:00
Wilson Snyder
16586d1d37 Fix tracing parameters overridden with -G (#3723). 2022-11-10 20:30:10 -05:00
Wilson Snyder
e64295e92b Fix missing UNUSED warnings with --coverage (#3736). 2022-11-09 21:45:14 -05:00
Wilson Snyder
167f4ebbd4 Commentary: Changes update 2022-11-05 09:32:41 -04:00
Wilson Snyder
0b0b642241 devel release 2022-10-29 17:54:12 -04:00
Wilson Snyder
52d29d238c Version bump 2022-10-29 17:45:54 -04:00
Wilson Snyder
5c658f8cd5 Fix width mismatch on inside operator (#3714). 2022-10-28 06:38:49 -04:00
Wilson Snyder
5f9b0929b4 Commentary: Changes update 2022-10-27 21:35:09 -04:00
Wilson Snyder
4154584c4b Commentary: Changes update 2022-10-21 20:04:07 -04:00
Wilson Snyder
a57a3579c0 Fix false LATCH warning on 'unique if' (#3088). 2022-10-21 19:10:06 -04:00
Wilson Snyder
347e9b4ec8 Fix cell assigning integer array parameters (#3299). 2022-10-21 18:26:39 -04:00
Wilson Snyder
79682e6072 Support empty generate_regions (#3695). [mpb27] 2022-10-20 22:04:50 -04:00
Wilson Snyder
7e1b92fa75 Add --get-supported to determine what features are in Verilator (#3688). 2022-10-20 21:42:30 -04:00
Wilson Snyder
e7068369fe Fix $display of fixed-width numbers (#3565). 2022-10-18 21:10:35 -04:00
Wilson Snyder
b930d0731a Fix foreach and pre/post increment in functions (#3613). 2022-10-18 20:04:09 -04:00
Wilson Snyder
2723223884 Fix LSB error on --hierarchical submodules (#3539). 2022-10-18 17:29:51 -04:00
Wilson Snyder
cb7b024e8f Commentary: Spelling, and add upgrade notes (#3462) 2022-10-16 11:10:41 -04:00
Wilson Snyder
b16b607b98 Commentary: Changes update 2022-10-15 11:04:03 -04:00
Wilson Snyder
732d5bea10 Commentary: Standard format for company contributions 2022-10-15 10:59:31 -04:00
Wilson Snyder
d9a0d0ade2 Commentary (fix earlier commit) 2022-10-15 10:57:46 -04:00
Wilson Snyder
14f58ed6c7 Add error on real edge event control. 2022-10-15 06:21:34 -04:00
Geza Lore
b2070a9407 Commentary: Mention DFG in changes 2022-10-12 10:21:02 +01:00
Wilson Snyder
880cac2fdd Merge branch 'master' into develop-v5 2022-10-01 11:24:55 -04:00
Wilson Snyder
0b843ada03 devel release 2022-10-01 08:34:43 -04:00
Wilson Snyder
746c7ea8f7 Version bump 2022-10-01 08:28:27 -04:00
Wilson Snyder
fa4b10b4d9 Commentary: Changes update 2022-09-30 23:03:26 -04:00
Wilson Snyder
cd2a5771b8 Add --timing to --binary (#3625). 2022-09-28 19:02:23 -04:00
Wilson Snyder
b92173bf3d Add --binary option as alias of --main --exe --build (#3625). 2022-09-28 09:04:33 -04:00
Wilson Snyder
d162619bd3 Merge branch 'master' into develop-v5 2022-09-20 20:06:21 -04:00
Wilson Snyder
fc4ffd454e Rename --bin to --build-dep-bin. 2022-09-18 10:32:43 -04:00
Geza Lore
27031ed688 Merge branch 'master' into develop-v5 2022-09-15 10:28:35 +01:00
Wilson Snyder
75fd71d7e5 Add --main to generate main() C++ (previously was experimental only) (#3265). 2022-09-14 20:18:40 -04:00
Wilson Snyder
9efd64ab98 Commentary 2022-09-14 20:13:28 -04:00
Wilson Snyder
7aa01625d8 Commentary: Changes update 2022-09-14 08:15:42 -04:00
Wilson Snyder
81fe35ee2e Fix typedef'ed class conversion to boolean (#3616). 2022-09-12 18:03:56 -04:00
Geza Lore
fd6275a62b Merge branch 'master' into develop-v5 2022-09-05 17:03:43 +01:00
Geza Lore
d42a2d6494 Fix V3Gate crash on circular logic
The recent patch to defer substitutions on V3Gate crashes on circular
logic that has cycle length >= 3 with all inlineable signals (cycle
length 2 is detected correctly and is not inlined). Fix by stopping
recursion at the loop-back edge.

Fixes #3543
2022-09-02 19:58:58 +01:00
Wilson Snyder
849bb5590a Merge branch 'master' into develop-v5 2022-08-31 19:51:07 -04:00
Wilson Snyder
8d0c06e570 devel release 2022-08-31 19:49:24 -04:00
Wilson Snyder
5b2fbf4f37 Version bump 2022-08-31 19:46:45 -04:00
Wilson Snyder
592dab2bdb Commentary: Changes update 2022-08-31 19:27:43 -04:00
Wilson Snyder
51daa64e9a Fix --hierarchical with order-based pin connections (#3585). 2022-08-31 18:12:21 -04:00
Wilson Snyder
819e8741cc Merge branch 'master' into develop-v5 2022-08-30 00:20:21 -04:00
Wilson Snyder
c335aad25f Fix --hierarchical with order-based pin connections (#3583). 2022-08-29 22:49:19 -04:00
Wilson Snyder
2358ced061 Rename tracing rolloverSize and add test (#3570). 2022-08-28 08:25:02 -04:00
Geza Lore
5c356a4680 Merge branch 'master' into develop-v5 2022-08-22 14:32:06 +01:00
Krzysztof Bieganski
39af5d020e
Timing support (#3363)
Adds timing support to Verilator. It makes it possible to use delays,
event controls within processes (not just at the start), wait
statements, and forks.

Building a design with those constructs requires a compiler that
supports C++20 coroutines (GCC 10, Clang 5).

The basic idea is to have processes and tasks with delays/event controls
implemented as C++20 coroutines. This allows us to suspend and resume
them at any time.

There are five main runtime classes responsible for managing suspended
coroutines:
* `VlCoroutineHandle`, a wrapper over C++20's `std::coroutine_handle`
  with move semantics and automatic cleanup.
* `VlDelayScheduler`, for coroutines suspended by delays. It resumes
  them at a proper simulation time.
* `VlTriggerScheduler`, for coroutines suspended by event controls. It
  resumes them if its corresponding trigger was set.
* `VlForkSync`, used for syncing `fork..join` and `fork..join_any`
  blocks.
* `VlCoroutine`, the return type of all verilated coroutines. It allows
  for suspending a stack of coroutines (normally, C++ coroutines are
  stackless).

There is a new visitor in `V3Timing.cpp` which:
  * scales delays according to the timescale,
  * simplifies intra-assignment timing controls and net delays into
    regular timing controls and assignments,
  * simplifies wait statements into loops with event controls,
  * marks processes and tasks with timing controls in them as
    suspendable,
  * creates delay, trigger scheduler, and fork sync variables,
  * transforms timing controls and fork joins into C++ awaits

There are new functions in `V3SchedTiming.cpp` (used by `V3Sched.cpp`)
that integrate static scheduling with timing. This involves providing
external domains for variables, so that the necessary combinational
logic gets triggered after coroutine resumption, as well as statements
that need to be injected into the design eval function to perform this
resumption at the correct time.

There is also a function that transforms forked processes into separate
functions.

See the comments in `verilated_timing.h`, `verilated_timing.cpp`,
`V3Timing.cpp`, and `V3SchedTiming.cpp`, as well as the internals
documentation for more details.

Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-08-22 13:26:32 +01:00
Geza Lore
9ac64d0b92 Improve performance of MTask coarsening
Various optimizations to speed up MTasks coarsening (which is the long
pole in the multi-threaded scheduling of very large designs).

The biggest impact ones:
- Use efficient hand written Pairing Heaps for implementing priority
  queues and the scoreboard, instead of the old SortByValueMap. This
  helps us avoid having to sort a lot of merge candidates that we will
  never actually consider and helps a lot in performance.
- Remove unnecessary associative containers and store data structures
  (the heap nodes in particular) directly in the object they relate to.
  This eliminates a huge amount of lookups and helps a lot in
  performance.
- Distribute storage for SiblingMC instances into the LogicMTask
  instances, and combine with the sibling maps. This again eliminates
  hash table lookups and makes storage structures smaller.
- Remove some now bidirectional edge maps, keep only the forward map.

There are also some other smaller optimizations:
- Replaced more unnecessary dynamic_casts with static_casts
- Templated some functions/classes to reduce the number of static
  branches in loops.
- Improves sorting of edges for sibling candidate creation
- Various micro-optimizations here and there

This speeds up MTask coarsening by 3.8x on a large design, which
translates to a 2.5x speedup of the ordering pass in multi-threaded
mode. (Combined with the earlier optimizations, ordering is now 3x
faster.)

Due to the elimination of a lot of the auxiliary data structures, and
ensuring a minimal size for the necessary ones, memory consumption of
the MTask coarsening is also reduced (measured up to 4.4x reduction
though the accuracy of this is low).

The algorithm is identical except for minor alterations of the order
some candidates are added or removed, this can cause perturbation in the
output due to tied scores being broken based on IDs.
2022-08-20 21:18:50 +01:00
Wilson Snyder
ebb37b0156 Merge branch 'master' into develop-v5 2022-08-20 14:02:09 -04:00
Wilson Snyder
90dc04cf93 Add --future0 and --future1 options. 2022-08-20 14:01:13 -04:00
Geza Lore
4d81eb021d Revert "Improve performance of MTask coarsening"
This reverts commit 83475008d9.
2022-08-19 18:03:45 +01:00
Geza Lore
83475008d9 Improve performance of MTask coarsening
Various optimizations to speed up MTasks coarsening (which is the long
pole in the multi-threaded scheduling of very large designs).

The biggest impact ones:
- Use efficient hand written Pairing Heaps for implementing priority
  queues and the scoreboard, instead of the old SortByValueMap. This
  helps us avoid having to sort a lot of merge candidates that we will
  never actually consider and helps a lot in performance.
- Remove unnecessary associative containers and store data structures
  (the heap nodes in particular) directly in the object they relate to.
  This eliminates a huge amount of lookups and helps a lot in
  performance.
- Distribute storage for SiblingMC instances into the LogicMTask
  instances, and combine with the sibling maps. This again eliminates
  hash table lookups and makes storage structures smaller.
- Remove some now bidirectional edge maps, keep only the forward map.

There are also some other smaller optimizations:
- Replaced more unnecessary dynamic_casts with static_casts
- Templated some functions/classes to reduce the number of static
  branches in loops.
- Improves sorting of edges for sibling candidate creation
- Various micro-optimizations here and there

This speeds up MTask coarsening by 3.8x on a large design, which
translates to a 2.5x speedup of the ordering pass in multi-threaded
mode. (Combined with the earlier optimizations, ordering is now 3x
faster.)

Due to the elimination of a lot of the auxiliary data structures, and
ensuring a minimal size for the necessary ones, memory consumption of
the MTask coarsening is also reduced (measured up to 4.4x reduction
though the accuracy of this is low).

The algorithm is identical except for minor alterations of the order
some candidates are added or removed, this can cause perturbation in the
output due to tied scores being broken based on IDs.
2022-08-19 16:59:20 +01:00
Geza Lore
1404319b28 Merge branch 'master' into develop-v5 2022-08-19 13:39:44 +01:00
Wilson Snyder
f435d96241 Fix case statement comparing string literal (#3544). 2022-08-15 21:56:09 -04:00
Wilson Snyder
cbe1b8e266 Fix segfault exporting non-existant package (#3535). 2022-08-08 17:53:50 -04:00
Geza Lore
ad2fbfe62d Merge branch 'master' into develop-v5 2022-07-29 12:04:24 +01:00
Yutetsu TAKATSUKASA
1f9323d086
Set correct dtype in replaceShiftSame() (#3520)
* Tests: Add a test to reproduce bug3399

* Fix3399. Set the correct dtype in replaceShiftSame().

* Tests: update stats.

* Update Changes
2022-07-29 07:05:04 +09:00
Yutetsu TAKATSUKASA
60eab3eb8c
Fix wrong result of bit op tree optimization #3509 (#3516)
* Tests: Add a test to reproduce #3509

* Tests: Compile without tautological-compare check because bit op tree optimization is disabled in the test.

* Internals: Dedup code. No functional change is intended.

* Fix #3509.

"2'b10 == (2'b11 & {1'b0, val[0]})"  and "2'b10 != (2'b11 & {1'b0, val[0]})" were
wrongly optimized to "!val[0]" and "val[0]" respectively.
Now properly optimize them to 1'b0 and 1'b1.

* Commentary

* Commentary: Update Changes
2022-07-24 19:54:37 +09:00
Geza Lore
c9ac9a75a6 Merge branch 'master' into develop-v5 2022-07-12 17:29:45 +01:00
Wilson Snyder
5f3316d3dc * Fix empty string arguments to display (#3484). 2022-07-09 08:30:57 -04:00
Wilson Snyder
a4fddb3fbe Fix table misoptimizing away display (#3488). 2022-07-09 07:55:46 -04:00
Yutetsu TAKATSUKASA
9f37cef1bb
Fix #3470 of incorrect bit op tree optimization (#3476)
* Tests: Add a test to reproduce #3470

* Update LSB during return path of traversal. No functional change is intended.

* Introduce LeafInfo::m_msb

* Update LeafInfo::m_msb when visitin AstCCast

* Internals: Add comment, reorder. No functional change is intended.

* Delete explicit from copy constructor to fix build error.

* Update Changes

* Internals: Remove unused parameter. No functional change is intended.

* Tests: Add explanation to t_const_opt.
2022-07-06 08:33:37 +09:00
Wilson Snyder
e7ca4a69e3 Merge branch 'master' into develop-v5 2022-06-19 15:22:09 -04:00
Wilson Snyder
f2fba51fe2 devel release 2022-06-19 15:13:29 -04:00
Wilson Snyder
7c79f0d431 Version bump (Changes update) 2022-06-19 15:10:23 -04:00
Wilson Snyder
1fa82ffb7b Commentary: Update ChangeLog 2022-06-19 15:00:10 -04:00
Wilson Snyder
e7dc2de14b Fix BLKANDNBLK on $readmem/$writemem (#3379). 2022-06-04 12:43:18 -04:00
Wilson Snyder
0f324c8309 Merge branch 'master' into develop-v5 2022-06-04 11:59:49 -04:00
Wilson Snyder
59dc2853e3 Support concat assignment to packed array (#3446). 2022-06-03 21:32:13 -04:00
Wilson Snyder
ada58465b2 Add -f<optimization> options to replace -O<letter> options (#3436). 2022-06-03 20:43:16 -04:00
Wilson Snyder
173f57c636 Changed --no-merge-const-pool to -fno-merge-const-pool (#3436). 2022-06-03 19:41:59 -04:00
Geza Lore
b51f887567
Perform VCD tracing in parallel when using --threads (#3449)
VCD tracing is now parallelized using the same thread pool as the model.
We achieve this by breaking the top level trace functions into multiple
top level functions (as many as --threads), and after emitting the time
stamp to the VCD file on the main thread, we execute the tracing
functions in parallel on the same thread pool as the model (which we
pass to the trace file during registration), tracing into a secondary
per thread buffer. The main thread will then stitch (memcpy) the buffers
together into the output file.

This makes the `--trace-threads` option redundant with `--trace`, which
now only affects `--trace-fst`. FST tracing uses the previous offloading
scheme.

This obviously helps a lot in VCD tracing performance, and I have seen
better than Amdahl speedup, namely I get 3.9x on XiangShan 4T (2.7x on
OpenTitan 4T).
2022-05-29 19:08:39 +01:00
Geza Lore
0722f47539
Improve V3MergeCond by reordering statements (#3125)
V3MergeCond merges consecutive conditional `_ = cond ? _ : _` and
`if (cond) ...` statements. This patch adds an analysis and ordering
phase that moves statements with identical conditions closer to each
other, in order to enable more merging opportunities. This in turn
eliminates a lot of repeated conditionals which reduced dynamic branch
count and branch misprediction rate. Observed 6.5% improvement on
multi-threaded large designs, at the cost of less than 2% increase in
Verilation speed.
2022-05-27 16:57:51 +01:00
Krzysztof Bieganski
d7a75dc026 Merge branch 'master' into develop-v5 2022-05-25 11:06:38 +02:00
Wilson Snyder
530817191e Support non-ANSI interface port declarations (#3439). 2022-05-25 00:50:50 -04:00
Geza Lore
c7610ed044 Fix FST tracing thread in CMake build 2022-05-20 17:04:46 +01:00
Geza Lore
ffc1c51526 Commentary 2022-05-20 16:44:53 +01:00
Geza Lore
b130a8cfeb Add -DVM_TRACE_VCD in model builds with Make with --trace 2022-05-20 16:44:38 +01:00
Wilson Snyder
7f1a9239ab Commentary, fix typo (#3121) 2022-05-15 11:14:07 -04:00
Geza Lore
599d23697d
IEEE compliant scheduler (#3384)
This is a major re-design of the way code is scheduled in Verilator,
with the goal of properly supporting the Active and NBA regions of the
SystemVerilog scheduling model, as defined in IEEE 1800-2017 chapter 4.

With this change, all internally generated clocks should simulate
correctly, and there should be no more need for the `clock_enable` and
`clocker` attributes for correctness in the absence of Verilator
generated library models (`--lib-create`).

Details of the new scheduling model and algorithm are provided in
docs/internals.rst.

Implements #3278
2022-05-15 16:03:32 +01:00
Geza Lore
c8102c8ffe Fix typo 2022-05-15 16:01:35 +01:00
Wilson Snyder
5aa12e9b51 Add assert when VerilatedContext is mis-deleted (#3121). 2022-05-15 10:51:03 -04:00
Wilson Snyder
3c4131d45d Fix 'with' operator with type casting (#3387). 2022-05-15 09:53:48 -04:00
Geza Lore
f6f03bc261 Merge branch 'master' into develop-v5 2022-05-15 12:05:12 +01:00
Wilson Snyder
c2328ef46a Spelling fixes. 2022-05-14 16:12:57 -04:00
Geza Lore
766fb56651 Merge branch 'master' into develop-v5 2022-05-14 10:30:45 +01:00
Wilson Snyder
71dedccbbe Support compile time trace signal selection with tracing_on/off (#3323). 2022-05-12 22:28:08 -04:00
Geza Lore
bec4610e12 Merge branch 'master' into develop-v5 2022-05-08 15:50:50 +01:00
Wilson Snyder
3d762282b9 Fix hang with large case statement optimization (#3405). 2022-05-05 07:02:52 -04:00
Wilson Snyder
184ebe72a2 Merge branch 'master' into develop-v5 2022-05-02 22:27:58 -04:00
Wilson Snyder
30783e6a79 devel release 2022-05-02 22:23:05 -04:00
Wilson Snyder
aa86c777f4 Version bump 2022-05-02 22:17:20 -04:00
Wilson Snyder
267315e7d4 Commentary: Update ChangeLog 2022-05-01 22:01:30 -04:00
Geza Lore
88bb7cdca6 Merge branch 'master' into develop-v5 2022-04-29 17:14:11 +01:00
Geza Lore
49c90ecbce Issue consistent INITIALDLY/COMBDLY/BLKSEQ warnings
Some cases of warnings about the use of blocking and non-blocking
assignments in combinational vs sequential processes were suppressed in
a way that is inconsistent with the *actual* current execution model of
Verilator. Turning these back on to, well, warn the user that these might
cause unexpected results. V5 will clean these up, but until then err on
the side of caution.

Fixes #864.
2022-04-29 17:05:44 +01:00
Geza Lore
46de9460a6 Merge branch 'master' into develop-v5 2022-04-23 15:38:30 +01:00
Geza Lore
9abab2c366 Add separate AstInitialStatic node for static initializers
Static variable initializers run before initial blocks, so use an
explicitly different procedure type for them. This also enables us to
now raise errors for assignments to const variables in initial blocks.
2022-04-23 15:12:49 +01:00
Geza Lore
a9cd2998e5 Don't mangle run-time library method names. 2022-04-23 14:47:16 +01:00
Geza Lore
0b74e9b354 Ensure topological ordering of module list.
At the end of V3Param, fix up the module list to be topologically
sorted. We need to do this at the end as a later instantiation of a
recursive module might instantiate an earlier specialization, which we
cannot know until we processed everything. The rest of the compiler
depends on the module list being topologically sorted.

Fixes #3393
2022-04-23 13:25:27 +01:00
Wilson Snyder
7bfc1a00a7 Fix tracing interfaces inside interfaces (#3309). 2022-04-14 09:14:44 -04:00
Wilson Snyder
f4baa86b71 Devel version 5 2022-04-13 07:15:11 -04:00
Julien Margetts
baff64a43d
Add VK_USER_OBJS dependency to --create-lib library (#3370) (#3382). 2022-04-12 07:04:31 -04:00
Wilson Snyder
f5f4e15ce2 Fix filenames with dots overwriting debug .vpp files (#3373). 2022-04-10 10:33:16 -04:00
Geza Lore
c79ea88576 Fix incorrect localization when encountering non-leaf functions.
Fixes #3286.
2022-04-09 20:30:39 +01:00
Wilson Snyder
9be4e7b576 Fix Bison 3.8.2 error (#3366). 2022-03-31 19:14:13 -04:00
Wilson Snyder
e02f97854c Deprecate 'vluint64_t' and similar types (#3255). 2022-03-27 15:27:40 -04:00
Wilson Snyder
3f7bf3d2dc Fix MSVC localtime_s (#3124). 2022-03-27 13:59:18 -04:00
Geza Lore
b1b5b5dfe2 Improve run-time profiling
The --prof-threads option has been split into two independent options:
1. --prof-exec, for collecting verilator_gantt and other execution
related profiling data, and
2. --prof-pgo, for collecting data needed for PGO

The implementation of execution profiling is extricated from
VlThreadPool and is now a separate class VlExecutionProfiler. This means
--prof-exec can now be used for single-threaded models (though it does
not measure a lot of things just yet). For consistency VerilatedProfiler
is renamed VlPgoProfiler. Both VlExecutionProfiler and VlPgoProfiler are
in verilated_profiler.{h/cpp}, but can be used completely independently.

Also re-worked the execution profile format so it now only emits events
without holding onto any temporaries. This is in preparation for some
future optimizations that would be hindered by the introduction of function
locals via AstText.

Also removed the Barrier event. Clearing the profile buffers is not
notably more expensive as the profiling records are trivially
destructible.
2022-03-27 15:57:30 +02:00
Wilson Snyder
e744c21f56 devel release 2022-03-12 13:17:48 -05:00
Wilson Snyder
89a0632ecc Version bump 2022-03-12 13:09:08 -05:00
Wilson Snyder
dcc05db7f1 Commentary: Changes updated. 2022-03-12 11:34:04 -05:00
Wilson Snyder
b5ce7d5982 Add VERILATOR_VERSION_INTEGER for determining API (#3343). 2022-03-12 11:17:39 -05:00
Wilson Snyder
ae005434e4 Fix $fscanf etc to return -1 on EOF (#3313). 2022-03-07 17:44:16 -05:00
Wilson Snyder
ef87d057fc Fix $fscanf etc to return -1 on EOF (#3113). 2022-03-07 17:43:33 -05:00
Wilson Snyder
22656d6fdd Fix Vdeeptemp error with --threads and --compiler clang (#3338). 2022-03-05 20:17:36 -05:00
Wilson Snyder
90c61c79d6 Fix unnamedblk error on foreach (#3321). 2022-03-05 17:04:52 -05:00
Wilson Snyder
4ba3bff87f Fix class stringification on wide arrays (#3312). 2022-03-05 16:32:30 -05:00
Wilson Snyder
c3dd6f5344 Fix public function arguments that are arrayed (#3316). 2022-03-05 16:19:53 -05:00
Wilson Snyder
321880f5a6 Add trace dumpvars() call for selective runtime tracing (#3322). 2022-03-05 15:44:32 -05:00
Geza Lore
3737d209f6 Keep recursive module list topologically (#3324).
Fixes (#3324).
2022-03-05 15:04:13 +00:00
Wilson Snyder
956f64c6ba Fix compile error with --trace-fst --sc (#3332). 2022-03-02 07:26:26 -05:00
Wilson Snyder
e52a4ac74f Fix $readmem file not found to be warning not error (#3310). 2022-02-19 10:04:12 -05:00
Wilson Snyder
5a3eab634a Suppress WIDTH warning on negate using carry bit (#3295). [Peter Monsson] 2022-02-13 15:28:07 -05:00
Wilson Snyder
77e68acf54 Suppress WIDTH warning on negate using carry bit (#2395). [Peter Monsson] 2022-02-13 15:27:31 -05:00
Wilson Snyder
7a355d448a Fix skipping public enum values with four-state values (#3303). 2022-02-10 19:27:28 -05:00
Wilson Snyder
434c3c3ef3 Removed the deprecated "fl" attribute in XML output; use "loc" attribute instead. 2022-01-17 16:22:07 -05:00
Wilson Snyder
21e05c43dd Removed the deprecated lint_off flag -msg; use -rule instead. 2022-01-17 16:04:06 -05:00
Wilson Snyder
0e154b35ef devel release 2022-01-17 15:54:31 -05:00
Wilson Snyder
e6554e061c Version bump 2022-01-17 15:52:26 -05:00
Wilson Snyder
0f004c8e7b Commentary, ChangeLog up to date 2022-01-17 14:16:09 -05:00
Julie Schwartz
f5b1a5cd58 Fix make support for BSD ar (#2999) (#3256). [Julie Schwartz]
While GNU 'ar' supports '@' to specify a file, BSD 'ar' does not.
The max line length can be handled by 'xargs' instead, which will know
to break up the command.  In case there are multiple calls, only build
the index (specified with '-s') once in a later call.
2022-01-17 14:04:43 -05:00
Geza Lore
f8c0169e82 Implement 'forceable' attribute
Using the 'forceable' directive in a configuration file, or the /*
verilator forceable */ metacomment on a variable declaration will
generate additional public signals that allow the specified signals to
be forced/released from the C++ code.
2022-01-16 15:31:37 +00:00
Geza Lore
b4d8220cbb
Deprecate --cdc (#3279) 2022-01-16 15:30:44 +00:00
Yutetsu TAKATSUKASA
4e5f30858b
Fix #3258 of internal error with inout port (#3268)
* Tests: Modify t_tri_inout to reproduce #3258

* Set direction of __en accorting to its main signal direction

* Update Changes
2022-01-05 08:37:20 +09:00
Wilson Snyder
2e2b82c052 Support class static members (#2233). 2022-01-02 15:09:07 -05:00
Wilson Snyder
e4c5eb5e69 Fix spurious UNUSED by ignoring inout pin connections (#3242). 2022-01-01 18:37:34 -05:00
Wilson Snyder
655910d486 Fix associative array first method as statement (#3228). 2022-01-01 17:10:26 -05:00
Wilson Snyder
80859a609a Fix $fclose not accepting expressions (#3237). 2022-01-01 16:48:15 -05:00
Wilson Snyder
d679d50eca Fix $random not updating seed (#3238). [Julie Schwartz] 2022-01-01 16:43:06 -05:00
Wilson Snyder
4cd56b1fb9 Use C++11 standard types for MacOS portability (#3254) (#3257). 2022-01-01 16:04:20 -05:00
Wilson Snyder
a68a4fc888 Commentary 2022-01-01 12:26:30 -05:00
Wilson Snyder
0c3ffa1841 Support force/release (#2491) (#2593). 2022-01-01 12:24:19 -05:00
Wilson Snyder
ca42be982c Copyright year update. 2022-01-01 08:26:40 -05:00
Wilson Snyder
7526151670 Fix bad ending address on $readmem (#3205). 2021-12-21 19:55:04 -05:00
Wilson Snyder
560b59f97f Use C++11 standard types for MacOS portability (#3254). 2021-12-21 13:18:05 -05:00
Geza Lore
1de2de4bde Fix splitting of large _eval and related functions
Fix bug that only used to measure size of first statement in functions
to determine if splitting was necessary. Measure whole function instead.
2021-12-20 11:24:11 +00:00
Geza Lore
ff425369ac
Reduce .rodata footprint of trace initialization (#3250)
Trace initialization (tracep->decl* functions) used to explicitly pass
the complete hierarchical names of signals as string constants. This
contains a lot of redundancy (path prefixes), does not scale well with
large designs and resulted in .rodata sections (the string constants) in
ELF executables being extremely large.

This patch changes the API of trace initialization that allows pushing
and popping name prefixes as we walk the hierarchy tree, which are
prepended to declared signal names at run-time during trace
initialization. This in turn allows us to emit repeat path/name
components only once, effectively removing all duplicate path prefixes.
On SweRV EH1 this reduces the .rodata section in a --trace build by 94%.

Additionally, trace declarations are now emitted in lexical order by
hierarchical signal names, and the top level trace initialization
function respects --output-split-ctrace.
2021-12-19 15:15:07 +00:00
Wilson Snyder
6b0601fd54 Support lower dimension looping in foreach loops (#3172). 2021-12-11 20:39:58 -05:00
Wilson Snyder
740fee660e Fix associative array foreach loop (#3229). 2021-12-11 18:38:23 -05:00
Wilson Snyder
984ee624ed Fix break under foreach loop (#3230).
Internals: Move Foreach handling into V3Width.
2021-12-11 15:06:33 -05:00
Wilson Snyder
59d170c6f8 Support up to 64 bit enums for .next/.prev/.name (#3244). 2021-12-11 11:29:01 -05:00
Wilson Snyder
8696e38e6f Primary inputs and outputs (VL_INW/VL_OUTW) now use VlWide type (#3236). 2021-12-09 19:41:33 -05:00
Wilson Snyder
706162ecc6 Commentary 2021-12-09 19:30:16 -05:00
Unai Martinez-Corral
7b119a594f Fix MSWIN compile error (#2681). 2021-12-06 08:15:58 -05:00
Wilson Snyder
ac05a779ae devel release 2021-12-05 11:16:02 -05:00
Wilson Snyder
935032366f Version bump 2021-12-05 11:10:19 -05:00
Wilson Snyder
293a5f402b Fix timescale portability on Arm64 (#3222). 2021-11-28 15:47:19 -05:00
Wilson Snyder
692306ef44 Optimize $random concatenates/selects (#3114). 2021-11-28 14:17:28 -05:00
Wilson Snyder
04e0c7e4f1 Support tracing through --hierarchical/--lib-create libraries (#3200). 2021-11-27 17:07:27 -05:00
Wilson Snyder
833686446c Commentary, ChangeLog up to date 2021-11-27 09:05:51 -05:00
Wilson Snyder
c6dae40cf6 Support task name in $display %m (#3211). 2021-11-26 20:38:48 -05:00
Wilson Snyder
62387a0e32 Fix display of empty string constant (#3207) (#3215). 2021-11-25 08:03:27 -05:00
Wilson Snyder
31079ca8b5 Fix $size on dynamic strings (#3216). 2021-11-25 07:50:47 -05:00
Wilson Snyder
e7ebe0e280 Fix $fopen etc on integer arrays (#3214). 2021-11-23 18:22:16 -05:00
Wilson Snyder
c14bbb9421 Fix incorrect width after and-or optimization (#3208). 2021-11-23 18:15:21 -05:00
Wilson Snyder
b1b92b7dd4 Fix hang on recursive definition error (#3199). 2021-11-23 07:27:41 -05:00
Julie Schwartz
a14394dbb5
Commentary: remove duplicate/wrong change-log entry (#3212) 2021-11-18 05:15:02 -05:00
Wilson Snyder
1e440765c0 Commentary, about previous commit: Fix display of signed without format (#3204). 2021-11-17 18:52:53 -05:00
Wilson Snyder
2ccf49031b Fix $display of signed/unsigned without format (#3207). 2021-11-17 18:50:52 -05:00
Wilson Snyder
0abc856be9 Fix %0 format on $value$plusargs. 2021-11-17 17:54:07 -05:00
Wilson Snyder
d2a8fa7440 Fix display of empty string constant (#3207). 2021-11-17 17:46:08 -05:00
Wilson Snyder
899de9a282 Add --lib-create, similar to --protect-lib but without protections (#3200). 2021-11-14 09:39:31 -05:00
Wilson Snyder
8b00939f0c Improve performance of V3Scoreboard. Only performance change intended. 2021-11-03 22:16:18 -04:00
Wilson Snyder
758264dc77 Fix nested generate if genblk naming (#3189). 2021-11-01 08:59:00 -04:00
Wilson Snyder
304697d133 Commentary 2021-11-01 08:57:43 -04:00
Wilson Snyder
0ef9087f89 Commentary 2021-10-17 14:51:50 -04:00
Wilson Snyder
00059987a1 devel release 2021-10-17 14:47:19 -04:00
Wilson Snyder
8f090176a6 Version bump 2021-10-17 14:36:23 -04:00
Wilson Snyder
43e8263d1f Commentary 2021-10-17 14:35:34 -04:00
Wilson Snyder
b8f6b262e4 Fix false EOFNEWLINE warning when DOS carriage returns present (#3171). 2021-10-13 21:21:51 -04:00
Wilson Snyder
b64e89f7ed Fix calling new with arguments in same class (#3166). 2021-10-12 21:22:59 -04:00
Wilson Snyder
c3bec344a4 Fix missing install of vl_file_copy/vl_hier_graph (#3165). 2021-10-12 20:20:45 -04:00
Wilson Snyder
9029da5ab8 Add profile-guided optmization of mtasks (#3150). 2021-09-26 22:51:11 -04:00
Wilson Snyder
def7c8fe4d Commentary 2021-09-26 16:21:58 -04:00
Wilson Snyder
9184c4f501 Fix cygwin compile error due to missing -std=gnu++14 (#3149) 2021-09-26 16:19:46 -04:00
Wilson Snyder
87ced0cc3e Fix crash on clang 12/13 (#3148). 2021-09-25 17:10:57 -04:00
Wilson Snyder
33650336f5 Commentary 2021-09-24 08:49:16 -04:00
Wilson Snyder
bbce1dc256 Commentary 2021-09-24 08:48:20 -04:00
Wilson Snyder
8ab51dbf22 Verilator_gantt: remove ASCII graphics 2021-09-24 08:48:20 -04:00
Wilson Snyder
c2819923c5 Verilator_gantt now shows the predicted mtask times, eval times, and additional statistics. 2021-09-23 22:59:36 -04:00
Wilson Snyder
08c8b0d7d6 Fix removing if statement with side effect in condition (#3131). 2021-09-13 15:52:53 -04:00
Wilson Snyder
d384a69877 Fix display has no time units on class function (#3116). 2021-09-08 19:31:46 -04:00
Wilson Snyder
d09b6a7d2c Include processor information in verilator_gantt data file. 2021-09-05 11:56:28 -04:00
Wilson Snyder
56dc66d842 Fix verilator_profcfunc profile accounting (#3115). 2021-09-03 19:59:10 -04:00
Wilson Snyder
da833d55fe devel release 2021-09-01 21:08:17 -04:00
Wilson Snyder
960813cb0f Version bump 2021-09-01 20:58:03 -04:00
Wilson Snyder
3e03cd5a4d Commentary 2021-09-01 20:39:59 -04:00
Wilson Snyder
27d53691bd Add header guards on Dpi.h generated files (#2979). 2021-08-23 21:43:54 -04:00
Wilson Snyder
c3d64d9743 Fix internal error on wide -x-initial unique (#3106). 2021-08-23 20:13:09 -04:00
Wilson Snyder
f9806595f2 Add error when constant function under a generate (#3103). 2021-08-21 10:33:20 -04:00
Geza Lore
c69ddc46f8
Fix bitop tree optimization dropping necessary cleaning AND (#3097)
Fixes #3096.
2021-08-14 21:09:01 +01:00
Geza Lore
536bdf506e
Fix re-evaluation of logic dependent on state set in DPI exports (#3091).
Verilator should now correctly re-evaluate any logic that depends on
state set in a DPI exported function, including if the DPI export is
called outside eval, or if the DPI export is called from a DPI import.

Whenever the design contains a DPI exported function that sets a
non-local variable, we create a global __Vdpi_export_trigger flag, that
is set in the body of the DPI export, and make all variables set in any
DPI exported functions dependent on this flag (this ensures correct
ordering and change detection on state set in DPI exports when needed).
The DPI export trigger flag is cleared at the end of eval, which ensured
calls to DPI exports outside of eval are detected. Additionally the
ordering is modifies to assume that any call to a 'context' DPI import
might call DPI exports by adding an edge to the ordering graph from the
logic vertex containing the call to the DPI import to the DPI export
trigger variable vertex (note the standard does not allow calls to DPI
exports from DPI imports that were not imported with 'context', so we
do not enforce ordering on those).
2021-08-12 21:43:32 +01:00
Wilson Snyder
6bad0e14ce Support timeunit/timeprecision in $unit. 2021-07-29 08:40:41 -04:00
Geza Lore
cdeb6e792f Add --instr-count-dpi option, change default to 200
This replaces the former static AstNode::INSTR_COUNT_DPI, and makes it
user adjustable to fit the design.

Fixes #3068.
2021-07-25 16:40:12 +01:00
Wilson Snyder
b90fce55f4 Includes: Refactor verilated.h and deprecate verilated_heavy.h (#2701). 2021-07-24 10:00:33 -04:00
Geza Lore
1de33b9fb7 Support localparams in tasks/functions 2021-07-23 20:34:49 +01:00
Geza Lore
90c917ee83 Enable now supported tests for string array initializers
Fixes #2895.
2021-07-23 17:21:15 +01:00
Geza Lore
4ab4c0c8ba Emit parameter values as 'static constexpr' instead of enum
All parameters that are required in the output are now emitted as
'static constexpr, except for string or array of strings parameters,
which  are still emitted as 'static const' (required as std::string is
not a literal type, so cannot be constexpr).  This simplifies handling
of parameters and supports 'real' parameters.
2021-07-23 17:20:26 +01:00
Geza Lore
ab4063f098 Emit implementations into separate files based on required headers.
This patch partitions AstCFuncs under an AstNodeModule based on which
header files they require for their implementation, and emits them
into separate files based on the distinct dependency sets. This helps
with incremental recompilation of the output C++.
2021-07-22 18:01:07 +01:00
Geza Lore
a4f5d95648 Fix -G to treat simple integer literals as signed (#3060)
The -G option now correctly parses simple integer literals as signed
numbers, which is in line with the standard and is significant when
overriding parameters without a type specifier.

Fixes #3060
2021-07-08 13:42:25 +01:00
Wilson Snyder
3ed2af638b devel release 2021-07-07 20:50:11 -04:00
Wilson Snyder
8e2ba6a003 Version bump 2021-07-07 20:43:07 -04:00
Wilson Snyder
36599133bf Add --prof-c to pass profiling to compiler (#3059). 2021-07-07 19:12:52 -04:00
Wilson Snyder
941f96c913 Commentary 2021-07-07 17:59:22 -04:00
Geza Lore
2ebed755e6 V3Simulate: Avoid copying while managing free list.
V3Simulate reuses allocated AstConst nodes for efficiency, however this
used to be implemented in a way that required a deep copy of a
std::unorderd_map<_, std::deque<_>>, which was quite inefficient when it
grew large. The free list is now managed without any copying. This takes
the V3Table pass from taking 12s to 0.2s on SweRV EH1.
2021-07-05 17:07:33 +01:00
Geza Lore
af27702188 Fix type parameter resolution with hash collision.
We incorrectly treated two different struct types the same when passed
as an actual parameter to a `parameter type` parameter in an instance,
if the actual parameter expression both hash to the same value and the
structs have the same struct name. This is now corrected.

Fixes #3055.
2021-07-01 16:52:29 +01:00
Geza Lore
708abe0dd1 Introduce model interface class, make $root part or Syms (#3036)
This patch implements #3032. Verilator creates a module representing the
SystemVerilog $root scope (V3LinkLevel::wrapTop). Until now, this was
called the "TOP" module, which also acted as the user instantiated model
class. Syms used to hold a pointer to this root module, but hold
instances of any submodule. This patch renames this root scope module
from "TOP" to "$root", and introduces a separate model class which is
now an interface class. As the root module is no longer the user
interface class, it can now be made an instance of Syms, just like any
other submodule. This allows absolute references into the root module to
avoid an additional pointer indirection resulting in a potential speedup
(about 1.5% on OpenTitan). The model class now also contains all non
design specific generated code (e.g.: eval loops, trace config, etc),
which additionally simplifies Verilator internals.

Please see the updated documentation for the model interface changes.
2021-06-30 16:35:40 +01:00
Geza Lore
ec1c112791
Remove deprecated --inhibit-sim (#3035) 2021-06-21 12:38:42 -04:00
Wilson Snyder
c11cd18491 In XML, show pinIndex information (#2877). 2021-06-19 13:41:41 -04:00
Wilson Snyder
8d737271ca Allow configure override of AR program (#2999). 2021-06-19 10:00:31 -04:00
Geza Lore
e5e5bc0fa3 Localize variables used in multiple functions
Teach V3Localize how to localize variables that are used in multiple
functions, if in all functions where they are used, they are always
written in whole before being consumed. This allows a lot more variables
to be localized (+20k variables on OpenTitan - when building without
--trace), and can cause significant performance improvement (OpenTitan
simulates 8.5% - build single threaded and withuot --trace).
2021-06-18 16:22:51 +01:00
Geza Lore
9eafca5e28
Remove deprecated --no-relative-cfuncs (#3024) 2021-06-16 23:17:43 -04:00
Wilson Snyder
13ddd0bc1c Fix error on unsupported recursive functions (#2957). 2021-06-13 12:38:31 -04:00
Geza Lore
c207e98306
Implement a distinct constant pool (#3013)
What previously used to be per module static constants created in
V3Table and V3Prelim are now merged globally within the whole model and
emitted as part of a separate constant pool. Members of the constant
pool are global variables which are declared lazily when used (similar to
loose methods).
2021-06-13 15:05:55 +01:00
Geza Lore
60d5f0e86b
Emit model implementation as loose methods. (#3006)
This patch introduces the concept of 'loose' methods, which semantically
are methods, but are declared as global functions, and are passed an
explicit 'self' pointer. This enables these methods to be declared
outside the class, only when they are needed, therefore removing the
header dependency. The bulk of the emitted model implementation now uses
loose methods.
2021-06-13 14:33:11 +01:00
Wilson Snyder
f0f68f42d1 devel release 2021-06-12 13:05:33 -04:00
Wilson Snyder
e3341e9a7c Verison bump 2021-06-12 12:36:03 -04:00
Wilson Snyder
b976b8dac9 Fix slowdown in elaboration (#2911). 2021-06-06 22:09:30 -04:00
Wilson Snyder
31bb73e3de Fix MCD close also closing stdout (#2931). 2021-06-06 19:32:48 -04:00
Wilson Snyder
1e89392e76 Add --expand-limit argument (#3005). 2021-06-06 10:27:01 -04:00
Wilson Snyder
9f5eb8f66e Commentary 2021-06-03 21:15:42 -04:00
Wilson Snyder
2143bcfad5 Fix constant function calls with uninit value (#2995). 2021-05-31 22:46:41 -04:00
Geza Lore
e1f9fffb42
Fix --protect-ids when using SV classes (#2994)
A few names were incorrectly mangled, which made --protect-ids produce
invalid output when certain SV class constructs were uses. Now fixed and
added a few extra tests to catch this.
2021-05-31 13:40:22 +01:00
Geza Lore
a44d2b2570 Move unreleased changes in right place in Changelog 2021-05-20 11:30:44 +01:00
Geza Lore
9699192de8
Don't merge bit select assignments in C code (#2971) 2021-05-18 14:28:48 -04:00
Geza Lore
38cab569ed
Add --reloop-limit argument (#2960)
Add --reloop-limit argument
2021-05-15 18:04:40 +01:00
Geza Lore
1422c23434
Split procedures to better respect --output-split-cfuncs (#2942)
CFuncs only used to be split at procedure (always/initial/final block),
which on occasion can still yield huge output files if they have large
procedures. This patch make CFuncs split at statement boundaries within
procedures. This has the potential to help a lot, but still does not
help if there are huge statements within procedures.
2021-05-11 07:44:07 -04:00
Geza Lore
f6c0108c86
Optimize large lookup tables to static data (#2926)
Implements #2925
2021-05-08 20:04:56 +01:00
Wilson Snyder
e68788d914 Fix initialization of assoc in assoc array (#2914). 2021-05-03 19:37:04 -04:00
Wilson Snyder
490f9f757d devel release 2021-05-03 19:37:04 -04:00
Wilson Snyder
15f7741eaf Version bump 2021-04-24 10:34:05 -04:00
Wilson Snyder
15802dadf1 Commentary 2021-04-24 09:23:53 -04:00
Wilson Snyder
dd0c2cac9b Fix V3Premit infinite loop on always read-and-write (#2898). 2021-04-21 09:21:06 -04:00
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