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Author SHA1 Message Date
Wilson Snyder
173f57c636 Changed --no-merge-const-pool to -fno-merge-const-pool (#3436). 2022-06-03 19:41:59 -04:00
Wilson Snyder
1f3e8640f7 Examples: -Os should be a compile flag, not Verilator flag. 2022-06-03 18:45:39 -04:00
Wilson Snyder
6039e9dcc3 Commentary 2022-06-02 21:32:22 -04:00
Yutetsu TAKATSUKASA
d64f979f99
Fix BitOpTree optimization to consider polarity of frozen node (#3445) (#3459) 
* Tests: add a test to another failing case of #3445

* Consider polarity as lsb in BitOpTree optimization.
 2022-06-01 09:26:16 +09:00
Huanghuang Zhou
0c53d19113
Commentary: InstrCountVisitor documentation (#3457) 
Signed-off-by: huanghuang.zhou <huanghuang.zhou@terapines.com>
 2022-05-31 07:10:58 -04:00
Geza Lore
c64a07fd09 CI: fix cache keys in test jobs 2022-05-30 18:35:59 +01:00
Geza Lore
694919b9d1 CI: add ubuntu-22.04 regressions 2022-05-30 18:34:41 +01:00
Geza Lore
606b35853b Configure and compile with C++17 on Ubuntu 22.04 
The packaged libsystemc on Ubuntu 22.04 uses C++17, so default to that
on that platform. Keep C++14 elsewhere.
 2022-05-30 18:34:41 +01:00
Yutetsu TAKATSUKASA
26b7452178
Fix #3445 of BitOpTreeOpt (#3453) 
* Tests: Check BitOpTree statistics in t_const_opt.

* Tests: Add a test to reproduce #3445

* Fix #3445. Don't forget LSB of frozen node in BitOpTreeOpt.

* Apply suggestions from code review

Co-authored-by: Geza Lore <gezalore@gmail.com>
 2022-05-30 19:33:06 +09:00
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
c4b8675d77 Always inline some small, hot trace routines 2022-05-28 12:47:09 +01:00
Geza Lore
a7cd7a1ed9 Initialize VerilatedTrace members in class 2022-05-28 12:47:07 +01:00
Geza Lore
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
Geza Lore
cf1eccc24f Make local function 'static' in verilated_profiler.h 2022-05-28 12:17:39 +01:00
Geza Lore
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
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
github action
a372e010bd Apply 'make format' 2022-05-25 04:51:51 +00:00
Wilson Snyder
530817191e Support non-ANSI interface port declarations (#3439). 2022-05-25 00:50:50 -04:00
Geza Lore
1282548a1c Only consider definitions in t_flag_csplit 2022-05-20 18:02:00 +01:00
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
Geza Lore
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
Krzysztof Bieganski
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
Geza Lore
1a056f6db9 Fix invalid conditional merging when starting at 'c = c ? a : b' 
Fixes #3409.
 2022-05-17 18:36:40 +01:00
Krzysztof Bieganski
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
Krzysztof Bieganski
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
Krzysztof Bieganski
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
Krzysztof Bieganski
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
Krzysztof Bieganski
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
Krzysztof Bieganski
ecaa07a72a
Rename AstTimingControl to AstEventControl (#3425) 
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
 2022-05-16 20:44:41 +01:00
Wilson Snyder
99bdc27be3 Internals: Cleanup some statics, trivial part towards (#3419) 2022-05-15 14:26:55 -04:00
Wilson Snyder
c3c46967dc Tests: Appease sanitizer (#3121). 2022-05-15 11:50:52 -04:00
Wilson Snyder
7f1a9239ab Commentary, fix typo (#3121) 2022-05-15 11:14:07 -04:00
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
Geza Lore
829437b20b Commentary - dependencies 2022-05-15 15:25:46 +01:00
Wilson Snyder
3c4131d45d Fix 'with' operator with type casting (#3387). 2022-05-15 09:53:48 -04:00
Wilson Snyder
ae8d8ee1ac Fix crash with misuse of display. 2022-05-15 09:29:45 -04:00
Geza Lore
89ec3d16dc Allow const nodes in VNRef 
No functional change.
 2022-05-15 13:30:07 +01:00
Wilson Snyder
7602c983c5 Commentary 2022-05-14 18:16:31 -04:00
HungMingWu
560efb2c9e
Internals: Fix memory leak in V3FileLine (#3407) (#3408). No functional change intended. 2022-05-14 18:15:38 -04:00
Wilson Snyder
c2328ef46a Spelling fixes. 2022-05-14 16:12:57 -04:00
Wilson Snyder
f6035447ae Internals: Use mutable for mutexes. No functional change. 2022-05-13 07:21:39 -04:00
Wilson Snyder
38438b3373 Internals: Cleanup some defaults. No functional change. 2022-05-12 23:30:39 -04:00
Wilson Snyder
71dedccbbe Support compile time trace signal selection with tracing_on/off (#3323). 2022-05-12 22:28:08 -04:00
Martin Stadler
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
Wilson Snyder
bdfdc737a0 Internals: Cleanup V3Config. No functional change intended. 2022-05-11 00:47:52 -04:00
Wilson Snyder
3d045c3aee Internals: Cleanup some verilog.y formatting. No functional change. 2022-05-09 00:37:51 -04:00
HungMingWu
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