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
c4b8675d77
Always inline some small, hot trace routines
2022-05-28 12:47:09 +01:00
a7cd7a1ed9
Initialize VerilatedTrace members in class
2022-05-28 12:47:07 +01:00
a48c779367
Rename verilated_trace_imp.cpp -> verilated_trace_imp.h
...
Also fix file header to describe purpose of this file.
2022-05-28 12:20:35 +01:00
cf1eccc24f
Make local function 'static' in verilated_profiler.h
2022-05-28 12:17:39 +01:00
d45caca011
Remove legacy VCD tracing API
...
This has not been used by Verilator for a while, but was kept for
compatibility with some external code. Now removed.
2022-05-28 12:07:24 +01:00
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
a372e010bd
Apply 'make format'
2022-05-25 04:51:51 +00:00
530817191e
Support non-ANSI interface port declarations ( #3439 ).
2022-05-25 00:50:50 -04:00
1282548a1c
Only consider definitions in t_flag_csplit
2022-05-20 18:02:00 +01:00
c7610ed044
Fix FST tracing thread in CMake build
2022-05-20 17:04:46 +01:00
ffc1c51526
Commentary
2022-05-20 16:44:53 +01:00
b130a8cfeb
Add -DVM_TRACE_VCD in model builds with Make with --trace
2022-05-20 16:44:38 +01:00
551bd284dd
Rename some internals related to multi-threaded tracing
...
Rename the implementation internals of current multi-threaded tracing to
be "offload mode". No functional change, nor user interface change
intended.
2022-05-20 16:44:35 +01:00
9edccfdffa
Initial support for intra-assignment timing controls, net delays ( #3427 )
...
This is a pre-PR to #3363 .
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-05-17 19:19:44 +01:00
1a056f6db9
Fix invalid conditional merging when starting at 'c = c ? a : b'
...
Fixes #3409 .
2022-05-17 18:36:40 +01:00
e018eb7bac
Support AstClass::repairCache() after V3Class ( #3431 )
...
This is a pre-PR to #3363 .
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-05-17 09:22:43 -04:00
0a91ddf38a
Tests: Better grep check in t_foreach ( #3435 )
...
This is a pre-PR to #3363 .
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-05-17 09:20:59 -04:00
67bb2c640e
Tests: Rename t_timing_clkgen to t_timing_clkgen1 ( #3430 )
...
This is a pre-PR to #3363 , which will introduce more clock gen tests.
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-05-17 09:19:51 -04:00
561eaa311d
Tests: Enable CI testing with GCC 10 ( #3432 )
...
This is a pre-PR to #3363 .
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-05-17 09:19:06 -04:00
3f7a248ed4
Refactor some of the Begin handling to a separate function ( #3426 )
...
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-05-16 20:45:33 +01:00
ecaa07a72a
Rename AstTimingControl to AstEventControl ( #3425 )
...
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-05-16 20:44:41 +01:00
99bdc27be3
Internals: Cleanup some statics, trivial part towards ( #3419 )
2022-05-15 14:26:55 -04:00
c3c46967dc
Tests: Appease sanitizer ( #3121 ).
2022-05-15 11:50:52 -04:00
7f1a9239ab
Commentary, fix typo ( #3121 )
2022-05-15 11:14:07 -04:00
c8102c8ffe
Fix typo
2022-05-15 16:01:35 +01:00
5aa12e9b51
Add assert when VerilatedContext is mis-deleted ( #3121 ).
2022-05-15 10:51:03 -04:00
829437b20b
Commentary - dependencies
2022-05-15 15:25:46 +01:00
3c4131d45d
Fix 'with' operator with type casting ( #3387 ).
2022-05-15 09:53:48 -04:00
ae8d8ee1ac
Fix crash with misuse of display.
2022-05-15 09:29:45 -04:00
89ec3d16dc
Allow const nodes in VNRef
...
No functional change.
2022-05-15 13:30:07 +01:00
7602c983c5
Commentary
2022-05-14 18:16:31 -04:00
560efb2c9e
Internals: Fix memory leak in V3FileLine ( #3407 ) ( #3408 ). No functional change intended.
2022-05-14 18:15:38 -04:00
c2328ef46a
Spelling fixes.
2022-05-14 16:12:57 -04:00
f6035447ae
Internals: Use mutable for mutexes. No functional change.
2022-05-13 07:21:39 -04:00
38438b3373
Internals: Cleanup some defaults. No functional change.
2022-05-12 23:30:39 -04:00
71dedccbbe
Support compile time trace signal selection with tracing_on/off ( #3323 ).
2022-05-12 22:28:08 -04:00
cddbe4642f
Fix cmake rules to support higher-level targest ( #3377 ) ( #3386 ).
...
Don't add linker flags as generator expression to support linking `TARGET` to higher-level targets in a top-level CMakeLists.txt file.
2022-05-11 21:33:05 -04:00
bdfdc737a0
Internals: Cleanup V3Config. No functional change intended.
2022-05-11 00:47:52 -04:00
3d045c3aee
Internals: Cleanup some verilog.y formatting. No functional change.
2022-05-09 00:37:51 -04:00
9583f152ee
Fix compile error when enable VL_LEAK_CHECKS ( #3411 ).
...
Signed-off-by: HungMingWu <u9089000@gmail.com>
2022-05-08 20:49:13 -04:00
5b2755d28d
Untabify verilog.y ( #3412 ). No functional change.
2022-05-08 20:46:18 -04:00
9378259779
Fix UNOPTFLAT warning from initial static var ( #3406 )
...
Signed-off-by: Kamil Rakoczy <krakoczy@antmicro.com>
2022-05-06 10:24:03 +02:00
3d762282b9
Fix hang with large case statement optimization ( #3405 ).
2022-05-05 07:02:52 -04:00
30783e6a79
devel release
2022-05-02 22:23:05 -04:00
aa86c777f4
Version bump
2022-05-02 22:17:20 -04:00
a2792785fe
Add V3GraphVertex::dotRank to add GraphViz ranks to graph dumps
...
This is a simple debugging aid to allow constraining the graph layout
via GraphViz rank directives. Note this is not related in any way to the
vertex 'rank' attribute used by some of the graph algorithms.
No functional change.
2022-05-02 10:27:26 +01:00
267315e7d4
Commentary: Update ChangeLog
2022-05-01 22:01:30 -04:00
99d39cb6ff
Fix autoconf warning
2022-05-01 10:43:04 -04:00
915ceb2d04
Tests: Untabify tests. No functional change.
2022-05-01 10:10:00 -04:00
Geza Lore
github action
Wilson Snyder
Krzysztof Bieganski
HungMingWu
Martin Stadler
Kamil Rakoczy