Commit Graph

8 Commits

Author SHA1 Message Date
Geza Lore
708abe0dd1 Introduce model interface class, make $root part or Syms (#3036)
This patch implements #3032. Verilator creates a module representing the
SystemVerilog $root scope (V3LinkLevel::wrapTop). Until now, this was
called the "TOP" module, which also acted as the user instantiated model
class. Syms used to hold a pointer to this root module, but hold
instances of any submodule. This patch renames this root scope module
from "TOP" to "$root", and introduces a separate model class which is
now an interface class. As the root module is no longer the user
interface class, it can now be made an instance of Syms, just like any
other submodule. This allows absolute references into the root module to
avoid an additional pointer indirection resulting in a potential speedup
(about 1.5% on OpenTitan). The model class now also contains all non
design specific generated code (e.g.: eval loops, trace config, etc),
which additionally simplifies Verilator internals.

Please see the updated documentation for the model interface changes.
2021-06-30 16:35:40 +01:00
Tomasz Gorochowik
5b3717b369
Tests: Memory clean up in tests (#2645)
This patch normalizes what the tests do before exiting. After this
change each test should call final on the top module and explicitly
free the top module object before exiting.
2020-11-17 06:37:55 -05:00
Wilson Snyder
d44426b3f3 clang-format. No functional change. 2020-10-27 20:33:45 -04:00
Wilson Snyder
3ad3944f2c Fix Travis/GCC warnings. For VPI/DPI still avoid C++11. 2020-08-24 18:49:36 -04:00
Wilson Snyder
c0127599df C++11: Use nullptr. No functional change. 2020-08-16 11:44:05 -04:00
Wilson Snyder
1ce360ed5b Add SPDX license identifiers. No functional change. 2020-03-21 11:24:24 -04:00
Wilson Snyder
f87107e757 Tests etc: Cleanup some clang-format suggestions. No functional change. 2019-11-09 20:35:12 -05:00
Wilson Snyder
652b68a5a0 Fix compile error on public real parameters by suppressing, bug1261. 2018-01-24 22:30:30 -05:00