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
96a4b3e5a5
Update clang-format config and apply
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- Regroup and sort #include directives (like we used to, but automatic)
- Set AlwaysBreakTemplateDeclarations to true
2022-08-05 12:00:24 +01:00
4f93ac6477
Internals: Style modernization. No functional change intended.
2022-06-15 18:49:32 -04:00
f7533010c6
Internals: Add `setNoopt()` function to `LifeVisitor` ( #3468 )
2022-06-15 18:11:03 -04:00
33105f017c
Commentary
2022-03-30 20:17:59 -04:00
e02f97854c
Deprecate 'vluint64_t' and similar types ( #3255 ).
2022-03-27 15:27:40 -04:00
e6857df5c6
Internals: Rename Ast on non-node classes ( #3262 ). No functional change.
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This commit has the following replacements applied:
s/\bAstUserInUseBase\b/VNUserInUseBase/g;
s/\bAstAttrType\b/VAttrType/g;
s/\bAstBasicDTypeKwd\b/VBasicDTypeKwd/g;
s/\bAstDisplayType\b/VDisplayType/g;
s/\bAstNDeleter\b/VNDeleter/g;
s/\bAstNRelinker\b/VNRelinker/g;
s/\bAstNVisitor\b/VNVisitor/g;
s/\bAstPragmaType\b/VPragmaType/g;
s/\bAstType\b/VNType/g;
s/\bAstUser1InUse\b/VNUser1InUse/g;
s/\bAstUser2InUse\b/VNUser2InUse/g;
s/\bAstUser3InUse\b/VNUser3InUse/g;
s/\bAstUser4InUse\b/VNUser4InUse/g;
s/\bAstUser5InUse\b/VNUser5InUse/g;
s/\bAstVarType\b/VVarType/g;
2022-01-02 14:03:20 -05:00
24a0d2a0c9
Internals: Favor member assignment initialization. No functional change intended.
2022-01-01 11:46:49 -05:00
ca42be982c
Copyright year update.
2022-01-01 08:26:40 -05:00
cd737065f2
Internals: More const. No functional change intended.
2021-11-26 17:55:36 -05:00
2742a8c813
Internals: No need for variable name on immediate visitors. No functional change intended.
2021-11-26 10:52:45 -05:00
05e12ab60e
Internals: More const. No functional change intended.
2021-11-26 10:52:45 -05:00
37e3c6da70
Internals: Add more const. No functional change intended.
2021-11-13 13:50:44 -05:00
dae9fa5053
Use VN_AS wherever possible and obvious. No functional change.
2021-10-22 14:06:00 +01:00
8ecdc85cf7
Internals: C++11 style cleanups. No functional change.
2021-07-11 18:42:01 -04:00
512fe0a2d1
Internals: Add const. No functional change.
2021-06-20 18:33:13 -04:00
7280307a39
Implement DPI import/export as loose functions
2021-06-13 15:06:28 +01:00
3a55600913
Internals: Restyle with C++11 using replacing typedef
2021-03-12 18:10:45 -05:00
bd602d0e2d
Copyright year update
2021-01-01 10:29:54 -05:00
c39a8b439a
Internals: Use emplace instead of insert(make_pair(...)). No functional change intended.
2020-12-18 18:24:47 -05:00
f2d8e45d72
For performance, use unordered_set/map where possible. No functional change intended.
2020-11-25 20:57:30 -05:00
b6ded59c2b
Internals: Use and enforce class final for ~5% performance boost.
2020-11-18 21:32:16 -05:00
1b0a48ea02
Internals: Use C++11 = default where obvious. No functional change intended.
2020-11-16 19:56:16 -05:00
44eb362a18
clang-tidy cleanups. No functional change intended.
2020-11-10 21:40:14 -05:00
2a24bb4759
Fix queue poping wrong value when otherwise unused ( #2512 ).
2020-11-07 10:37:55 -05:00
1899a875a4
Internals: Create VAccess class. No functional change intended.
2020-09-07 17:09:25 -04:00
ee9d6dd63f
C++11: Favor auto, range for. No functional change intended.
2020-08-16 11:44:06 -04:00
72d2cff0a1
C++11: Use member declaration initalizations. No functional change intended.
2020-08-16 11:44:06 -04:00
033e7ac020
C++11: Use member declaration initalizations. No functional change intended.
2020-08-16 11:44:06 -04:00
042d3eed23
C++11: Use override where possible. No functional change.
2020-08-16 11:44:05 -04:00
c0127599df
C++11: Use nullptr. No functional change.
2020-08-16 11:44:05 -04:00
7c54a451a9
C++11: Remove pre-c11 VL_OVERRIDE etc. No functional change.
2020-08-16 11:44:05 -04:00
95534fa5c5
Remove unused headers ( #2389 )
2020-05-31 20:21:07 +01:00
546ccd56c4
Internals: Enable future JumpGo to non-end. No functional change intended.
2020-05-06 21:33:05 -04:00
6ab3d8f3ed
Internals: Refactor to add AstNodeProcedure. No functional change intended.
2020-05-05 19:12:36 -04:00
f3308d236b
clang-format remaining sources. No functional change.
2020-04-15 07:58:34 -04:00
19b472cf0b
Internals: Cleanup unused nodep in visitors. No functional change intended.
2020-04-04 08:31:14 -04:00
1ce360ed5b
Add SPDX license identifiers. No functional change.
2020-03-21 11:24:24 -04:00
808c958d42
Internals: Add AstNodeCCall and other items towards classes.
2020-03-07 12:52:11 -05:00
eafed88a6e
Internals: Add assertions. No functional change intended.
2020-01-25 10:19:59 -05:00
fbdf5f2dad
Internals: Mark all visit() with VL_OVERRIDE. Closes #2132 .
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* Add VL_OVERRIDE macro so that compiler can tell my typo when trying to override a function.
* Mark visit() with VL_OVERRIDE. No functional change intended.
2020-01-21 17:35:56 -05:00
09199f79a6
Internals: Add VL_DO_CLEAR delete protections. No functional change intended.
2020-01-18 10:29:49 -05:00
623c4ec103
Internals: Create VL_DO_DANGLING. No functional change intended.
2020-01-16 20:17:11 -05:00
06247686c5
Codacy cleanups
2020-01-08 19:33:47 -05:00
f23fe8fd84
Update copyright year.
2020-01-06 18:05:53 -05:00
5811ec07e6
Update URLs to https://verilator.org
2019-11-07 22:33:59 -05:00
0cbfd29ac5
Codacy/Cppcheck cleanups and badge.
2019-10-24 22:19:46 -04:00
9f977ed419
Codacy/Cppcheck cleanups and badge.
2019-10-24 21:48:45 -04:00
d472ef63e9
Internals: Cleanup some misnamed classes. No functional change.
2019-10-05 08:17:21 -04:00
771a301f66
Commentary: Remove newlines, upsets some patches. No functional change.
2019-10-04 20:17:11 -04:00
8548ecfdac
Internals: Add UASSERT_OBJ macro to replace hand-done ifs. No functional change intended.
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This makes it easier to filter out correctly zero code-coverage lines.
2019-07-06 12:57:50 -04:00
a4b9745e6e
Fix lifetime opt dropping
2019-07-05 22:30:19 -04:00
b83b606267
Internals: Detab and fix spacing style issues. No functional change.
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When diff, recommend using "git diff --ignore-all-space"
When merging, recommend using "git merge -Xignore-all-space"
2019-05-19 16:13:13 -04:00
8a4aeddbb0
Copyright year update.
2019-01-03 19:17:22 -05:00
d87b9d25ca
Internals: Cleanup and standardize include order. No functional change intended.
2018-10-14 13:59:40 -04:00
595419b370
Internals: Sort includes for clang-tidy. No functional change intended.
2018-10-14 07:04:18 -04:00
75f28fd446
Internals: Fix spacing of function calls. No functional change.
2018-08-25 09:52:45 -04:00
cd4e6b35b3
Internals: Standardize debug() function generation. No functional change intended.
2018-05-14 06:50:47 -04:00
05db8ce6c8
Internals: Move iterators to AstNVisitor to avoid null this.
2018-05-10 20:55:37 -04:00
2c30aecc5b
Merge from master
2018-03-10 16:51:34 -05:00
54a101acbe
Internals: Fix -DLEAK_CHECKS failing due to visitor destructor being too late.
2018-03-10 12:57:50 -05:00
597d28b505
Fix internals to make null-pointer-check clean. Also add more const's. No functional change intended, but likely something will break.
2018-02-01 21:32:58 -05:00
94e8cf1de9
Internals: Use explicit std:: instead of using namespace std. No functional change intended.
2018-02-01 21:24:41 -05:00
8e65d93d6d
Copyright year update. No functional change.
2018-01-02 18:05:06 -05:00
631bda395d
Avoid duplicated scans of CFuncs.
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Trace into non-entry-point functions (most of them) at their call
sites. We'll trace into entry-point functions (like eval) from their parent
scope. We must trace eval_ to reach the tree of calls beneath it.
Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
2017-11-28 18:38:19 -05:00
63361fc56e
Add performance information to --stats file.
2017-09-17 22:52:57 -04:00
e6d7e7e329
Version bump
2017-01-15 12:13:13 -05:00
7efa40966a
Internals: Remove second argument to visitors. No functional change intended.
2016-11-27 08:11:38 -05:00
cb2d8259f2
Fix stats and debug print, bug1029
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Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
2016-01-28 22:20:31 -05:00
b738d1960a
Copyright year update
2016-01-06 20:36:41 -05:00
4fc9a906f6
Internals: Fix cppcheck warnings; add VL_DANGLING. No functional change.
2015-10-04 13:16:35 -04:00
318ded4198
Internals: Cleanup cppcheck warnings.
2015-10-03 22:33:06 -04:00
0ee5743853
Add --dump-treei-<srcfile>, bug894.
2015-03-12 19:48:04 -04:00
8323092a0c
Fix cppcheck warnings. No functional change.
2015-02-09 21:05:27 -05:00
4c91ade61d
Copyright year update
2015-01-07 18:25:53 -05:00
4422de0c6c
Copyright year update.
2014-01-06 19:28:57 -05:00
a8bbf7231b
Copyright year update.
2013-01-01 09:42:59 -05:00
c6e7d87960
Commentary - Remove author lines as amany contributors now
2012-05-24 19:19:48 -04:00
50edef4ab2
Add Emacs indentation line. No functional change
2012-04-12 21:08:20 -04:00
c2c7c7bd9a
Copyright year update
2012-01-15 10:26:28 -05:00
df1da3dda9
Internals: Fix cppcheck warnings; no functional change intended
2011-08-04 21:58:45 -04:00
71c1f00ec2
Copyright year update
2011-01-01 18:21:19 -05:00
cdd06e7236
Support "break", "continue", "return".
2010-02-14 10:01:21 -05:00
295faf726b
Fix wrong error point, bug210
2010-01-21 18:22:08 -05:00
729dfdfed7
Copyright year update
2010-01-05 21:15:06 -05:00
a40fae04ce
Support direct programming interface (DPI) "import".
2009-12-03 06:55:29 -05:00
2f2f416bea
Fix auto-indentation of AstCStmts - again
2009-12-02 19:32:41 -05:00
dd4059beb8
Internals: Rework V3Param, V3Width and V3Const to return a AstNode* representing
...
any replacement edit they made to the passed in node. Assure all callers use it
and/or comment on non-use. Hopefully no function changed.
2009-10-14 20:13:04 -04:00
fe3b54bc2e
Have V3Life unlink at end to prevent proposed new-iteration scheme from breaking.
2009-10-14 08:26:30 -04:00
7df730cedd
Verilator is now licensed under LGPL v3 and/or Artistic v2.0.
2009-05-04 17:07:57 -04:00
21b5a4e9e4
Add --debugi-<srcfile> option.
2009-01-21 16:56:50 -05:00
3d06720628
Copyright year update
2009-01-02 11:47:39 -05:00
5bdb8674ed
Internals: Rename AstNode::userp to user1p for easier searching
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and to disambiguate from the vertex/edge-> userp.
2008-11-25 09:03:49 -05:00
8b77379e2c
Internal coding: Assert that user#() don't overlap.
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Any use of a user() must now be declared, generally in the Visitor class with
AstUser#InUse arbitrary_object
This lets the code track if there's another request for the same user(),
preventing nasty hard to debug cases where they overlap. This will also
call user#ClearTree(), so a bunch of those were removed, though many
extranious ones still remain.
2008-11-21 15:50:33 -05:00
20aa21d4b6
Replace stdio.h and stdarg.h with C++ versions
2008-06-30 13:11:25 -04:00
499f98a51c
Fix leading/trailing mixed whitespace
2008-06-12 12:03:47 -04:00
52912c6329
Convert repository to git from svn.
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- Change .cvsignore to .gitignore
- Remove Id metacomments
- Cleanup whitespace at end of lines
2008-06-09 21:25:10 -04:00
8e812058cb
Change website references to veripool.org
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@1039 77ca24e4-aefa-0310-84f0-b9a241c72d87
2008-04-25 12:14:27 +00:00
a2ffe86a36
Copyright update
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@976 77ca24e4-aefa-0310-84f0-b9a241c72d87
2008-01-15 14:29:08 +00:00
a94f1c779b
Spelling fixes
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@973 77ca24e4-aefa-0310-84f0-b9a241c72d87
2007-11-30 22:12:53 +00:00
Krzysztof Bieganski
Geza Lore
Wilson Snyder
Yutetsu TAKATSUKASA
John Coiner
Johan Bjork