This patch gets rid of over 80% of temporary dynamic memory allocations
(when a malloced node is immediately freed with no other malloc in
between). It also gets rid of over 20% of all calls to malloc.
It's worth ~3% average verilation speed up with tcmalloc, and more
without tcmalloc.
- Remove _ENUM_END, so -Wswitch does not demand it's covered. Use the
new NUM_TYPES constexpr member instead.
- Remove 'at' prefix. This seems historical and is not particularly useful.
- Fix some cppcheck warts while at it
V3Stats for "fast" code have bit-rotted a little and is causing some
problems with tests that rely on stats outputs. The problem is that not
all code is necessarily reachable from eval() any more (due to the
complexity of some the features added over the past few years), so it
might miss some things, as for measuring the "fast" code, it is trying
to trace the execution paths via calls, starting from eval(). It also
appears the fast code can also contain calls to slow code in some
circumstances.
To avoid all that, removed trying to trace dynamic execution, and simply
report the static node counts, which is enough for testing.
Similarly, the variable counts are somewhat dubious, as they don't
include all data types, or all instances of a module in some stages.
Removing these as they are not widely used nor dependable. More specific
stats can be added if required and can be well defined.
- Rename `--dump-treei` option to `--dumpi-tree`, which itself is now a
special case of `--dumpi-<tag>` where tag can be a magic word, or a
filename
- Control dumping via static `dump*()` functions, analogous to `debug()`
- Make dumping independent of the value of `debug()` (so dumping always
works even without the debug flag)
- Add separate `--dumpi-graph` for dumping V3Graphs, which is again a
special case of `--dumpi-<tag>`
- Alias `--dump-<tag>` to `--dumpi-<tag> 3` as before
Introduce the @astgen directives parsed by astgen, currently used for
the generation child node (operand) accessors. Please see the updated
internal documentation for details.
* 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.
Geza Lore
Wilson Snyder
github action
Yutetsu TAKATSUKASA