8c58612a3b
Improve V3Inline speed and memory consumption
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Avoid cloning the module when inlining the last instance that references
that module. This saves a lot of memory because it saves cloning
singleton modules (those with a single instance), which we always
inline. The top few levels of the hierarchy are often simple wrappers,
including the one added by Verilator in V3LinkLevel::wrapTop. Cloning
these and putting off deleting the originals can be very expensive
because they often have a lot of contents inlined into them, so each
layer of wrapper that is inlined would essentially add a whole new clone
of the large top-level. Directly inlining the module for the last cell
without cloning saves us from all this duplicate memory consumption and
also from having to create the clones in the first place.
Also added minor traversal speedups
This reduces the memory consumption of V3Inline by 80% and peak memory
consumption of Verilator by about 66% on a large design, while speeding
up the V3Inline pass by ~3.5x and the whole of Verilator by ~8% while
producing identical output.
2022-01-07 12:11:10 +00:00
56f9d244de
Cleanup V3Inline. No functional change.
2022-01-07 12:08:17 +00:00
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
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
70603bb752
Add static assertions for unnecessary VN_IS/VN_AS/VN_CAST
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Fail at compile time if the result of these macros can be statically
determined (i.e.: they aways succeed or always fail). Remove unnecessary
casts discovered. No functional change.
2021-10-22 19:39:24 +01:00
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
3a55600913
Internals: Restyle with C++11 using replacing typedef
2021-03-12 18:10:45 -05:00
404b323f8c
Internals: Remove some unnecessary typedefs. No functional change.
2021-03-12 17:26:53 -05:00
9650aefa42
Internals: Cleanup unneeded {}. No functional change
2021-02-21 21:25:21 -05:00
fadc6776ec
For --flatten, override inlining of public and no_inline modules ( #2761 )
2021-01-18 08:03:18 -05:00
bd602d0e2d
Copyright year update
2021-01-01 10:29:54 -05:00
b04a1caeac
In warnings, rename cells to instances to match IEEE
2020-12-12 22:43:55 -05:00
f2d8e45d72
For performance, use unordered_set/map where possible. No functional change intended.
2020-11-25 20:57:30 -05:00
e1c45440fc
Internals: Rename packagep(). No functional change.
2020-11-24 21:56:03 -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
1899a875a4
Internals: Create VAccess class. No functional change intended.
2020-09-07 17:09:25 -04:00
bed3101dfc
Internals: Use VL_RESTORER class to save/restore vars. No functional change intended.
2020-08-24 21:13:28 -04:00
78aee6f4e7
C++11: Use sized enums (+4% performance).
2020-08-16 12:05:35 -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
97cbc10925
Add --flaten for use with --xml-only ( #2270 ).
2020-04-21 18:14:08 -04:00
d4f7f5297a
Support IEEE time units and time precisions, #234 . ( #2253 )
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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
f3308d236b
clang-format remaining sources. No functional change.
2020-04-15 07:58:34 -04:00
15b40a97d9
Support `unconnected_drive
2020-04-09 23:26:03 -04:00
6eadb8e771
Add simplistic class support with many restrictions, see manual, #377 .
2020-04-05 09:30:23 -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
92d62a6568
Internals: clang-format cleanups for V3Inline. No functional change.
2020-03-15 22:30:20 -04:00
808c958d42
Internals: Add AstNodeCCall and other items towards classes.
2020-03-07 12:52:11 -05:00
609a5dc26d
Fix cppcheck warnings. No functional change intended.
2020-02-03 23:21:56 -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
e8ff191a17
Internals: Prepare for hierarchical NodeModule's. No functional change intended.
2020-01-20 13:27:27 -05:00
623c4ec103
Internals: Create VL_DO_DANGLING. No functional change intended.
2020-01-16 20:17:11 -05:00
f23fe8fd84
Update copyright year.
2020-01-06 18:05:53 -05:00
924fe235a9
No assign alias for unpacked public variables ( #2089 )
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Public variables are all emitted in the C code and unpacked arrays
arrays are sliced up for this. After inlining public unpacked array
assignments should not be alias assignments but actual assignments, so
that they are sliced and hence emitted properly.
Fixes #2073
2020-01-03 13:44:45 +01:00
4480938b25
Fix interface reference tracing, bug1595.
2019-12-07 12:28:19 -05:00
5811ec07e6
Update URLs to https://verilator.org
2019-11-07 22:33:59 -05:00
Geza Lore
Wilson Snyder
James Hanlon
James Hanlon
Yutetsu TAKATSUKASA
Stefan Wallentowitz
Todd Strader