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95 Commits

Author SHA1 Message Date
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
6eadb8e771 Add simplistic class support with many restrictions, see manual, #377. 2020-04-05 09:30:23 -04:00
Wilson Snyder
1ce360ed5b Add SPDX license identifiers. No functional change. 2020-03-21 11:24:24 -04:00
Wilson Snyder
4878fe3a1f Add split_var metacomment to assist UNOPTFLAT fixes, #2066. 2020-02-28 19:15:08 -05:00
Wilson Snyder
119162912a Internals: Determine emit forward declaraions in new pass, towards classes. 2020-02-01 16:51:05 -05:00
Geza Lore
f00ff61559 Link Verilator binary partially statically, Closes #2146. 
The build is now by default configured to link performance critical
libraries (libgcc, libstdc++, libtcmalloc) statically. This improves
Verilation speed by between 4.5-7% based on my measurements as it
eliminates approx 20% of the mispredicted branches from the execution.
With partial static linking, the size of the .text section in
verilator_bin is increased by about 14%, and the binary is itself only
about 800KB bigger on disk, so hopefully this is not a big issue in
exchange for the faster compilation speed. A configure option
"--disable-partial-static" is provided to restore the old behaviour of
linking everything dynamically.

Note: This patch also changes to use libtcmalloc_minimal, which is all
we really need and itself has fewer dependencies.
 2020-01-31 19:13:55 -05:00
Geza Lore
7ab2bdb6bb Support libgoogle-perftools-dev's libtcmalloc if available. #2137. 
As Verilator continuously allocates and releases small objects (e.g.:
AstNode, V3GraphVertex, V3GraphEdge), it spends a significant amount of
time in malloc/free and friends. This patch adds the --enable-tcmalloc
configure option to link Verilator against the high performance malloc
implementation library libtcmalloc. The default is to use libtcmalloc if
available on the system. Note that there are no source code change, we
are simply replacing the standard library memory allocation functions.

Measured major compilation speed improvement of 27% when running
Verilator with -O3 on a large design.
 2020-01-23 17:32:19 -05:00
Pieter Kapsenberg
1dd9a74b6c Internals: Move V3Global function definitions to their own files. No functional change intended. Closes #2120. 2020-01-19 07:23:26 -05:00
Wilson Snyder
f23fe8fd84 Update copyright year. 2020-01-06 18:05:53 -05:00
Wilson Snyder
5811ec07e6 Update URLs to https://verilator.org 2019-11-07 22:33:59 -05:00
Patrick Stewart
1e4f471049 Add cmake support, bug1363. 
Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
 2019-10-17 19:44:10 -04:00
Todd Strader
da0da9e258 Add --protect-lib to create protected libraries, bug1490. 2019-10-09 06:47:26 -04:00
Wilson Snyder
e1e4bde125 Remove old V3ClkGater code 2019-08-27 17:51:06 -04:00
Gianfranco Costamagna
07ae7146e3 Honour system flags, this makes debug flags being injected correctly. 
Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
 2019-07-06 13:02:36 -04:00
Wilson Snyder
8a4aeddbb0 Copyright year update. 2019-01-03 19:17:22 -05:00
Wilson Snyder
f7b93c8718 Fix install test. 2018-08-25 07:55:48 -04:00
Wilson Snyder
ec8dbbffed MAJOR: Add multithreaded model generation. 2018-07-22 20:54:28 -04:00
Wilson Snyder
e37dce9d85 Internals: Add new graph algs for future partitioning. 2018-07-15 22:09:27 -04:00
Wilson Snyder
81ef9b5dd2 Internals: Add V3InstrCount, for threads branch. 2018-07-04 21:52:15 -04:00
Wilson Snyder
ad4c8ee955 Add new reloop optimization for repetitive assignment compression. 2018-06-23 17:07:22 -04:00
Wilson Snyder
1fad055286 Internals: Add TSP solver, for future threads branch. 2018-06-17 21:06:41 -04:00
Wilson Snyder
aed3307214 Enable GCC debug when in debug build 2018-03-03 20:43:14 -05:00
Wilson Snyder
8e65d93d6d Copyright year update. No functional change. 2018-01-02 18:05:06 -05:00
John Coiner
f63e946f04 Internals: Add consts. No functional change. 
Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
 2017-11-02 18:02:11 -04:00
Wilson Snyder
103b956581 Default to -O2 for Verilator itself, for 20%+ 2017-09-17 23:25:20 -04:00
Wilson Snyder
778564e63b Compling: Turn on -Wextra when using --enable-ccwarn 2017-09-14 23:28:02 -04:00
Wilson Snyder
074689b5de SystemPerl mode (-sp-deprecated) has been removed. 2017-09-07 21:08:49 -04:00
Wilson Snyder
e6d7e7e329 Version bump 2017-01-15 12:13:13 -05:00
Wilson Snyder
498f19a6a1 Use VERILATOR_INCLUDE in generated files to allow relocation. 2016-11-18 21:13:56 -05:00
Wilson Snyder
f74ef650ac Honor --output-split on coverage constructors, bug1098. 2016-10-23 14:27:57 -04:00
Wilson Snyder
2c9716c64c Try 2. Fix core dump on Arch Linux/GCC 6.1.1, bug1058. 2016-05-16 21:40:49 -04:00
Johan Bjork
8c4aa8517e Fix --output-split of constructors, bug1035. 
Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
 2016-05-12 07:19:02 -04:00
Wilson Snyder
b738d1960a Copyright year update 2016-01-06 20:36:41 -05:00
Wilson Snyder
d39ce17dea Makefiles: Turn off make built-in suffixes. 2015-11-28 17:33:01 -05:00
Wilson Snyder
751384cb5c Fix compile error on MinGW, bug887. 2015-02-26 20:40:45 -05:00
Wilson Snyder
32a76c5255 Fix clang warnings. 2015-02-10 22:38:05 -05:00
Wilson Snyder
4c91ade61d Copyright year update 2015-01-07 18:25:53 -05:00
Wilson Snyder
9ec35a2348 New verilator_coverage and infrastructure to replace SystemPerl's vcoverage. 2014-11-23 21:06:10 -05:00
Wilson Snyder
6da13c6486 Internals: Split V3Error into V3FileLine. No functional change. 2014-11-22 11:48:39 -05:00
Wilson Snyder
4422de0c6c Copyright year update. 2014-01-06 19:28:57 -05:00
Wilson Snyder
a8bbf7231b Copyright year update. 2013-01-01 09:42:59 -05:00
Wilson Snyder
9c00fd10de Add --savable to support model save/restore. 2012-08-26 21:19:43 -04:00
Wilson Snyder
8b9b7178a2 Internals: MAJOR CHANGE. Combine V3Link and V3LinkDot stages for structures. 
Functionality should be similar, but may introduce instability in resolving variables/cells.
Final merge from dot.
 2012-07-21 17:12:42 -04:00
Wilson Snyder
204fb82975 Add very experimental --xml option 2012-03-20 16:13:10 -04:00
Wilson Snyder
7e9dda3c5e Fix false command not found warning in Makefiles. 2012-02-16 07:17:08 -05:00
Wilson Snyder
2396181bc5 Add SYSTEMC_INCLUDE and SYSTEMC_LIBDIR 2012-01-19 20:30:41 -05:00
Wilson Snyder
c2c7c7bd9a Copyright year update 2012-01-15 10:26:28 -05:00
Wilson Snyder
194825f78e Add configure options for cc warnings and extended tests. 2011-10-07 06:48:40 -04:00
Wilson Snyder
55bd765ea0 Find config_rev when under git in remote config dir 2011-10-05 18:36:44 -04:00
Wilson Snyder
b03d61e2cf Use EXEEXT to fix make warning 2011-10-05 17:07:10 -04:00