This saves about 5% memory. V3AstUserAllocator is appropriate for most use
cases, performance is marginally up as we are mostly D-cache bound on
large designs.
The typical find/if-not-exists-insert pattern can be achieved with 1
lookup instead of 2 using emplace with a sentinel value. Also maps value
initialize their values when inserted with the [] operator, this is
defined and so there is no need to explicitly insert zeroes for integer
values.
This changeset brings support for accesses like:
class Cls#(type TYPE1);
TYPE1::some_method();
endclass
It is done by delaying dot resolution on type parameters until they get
resolved by V3Param, and doing a more thorough reference skip.
Multiple tricks to reduce the size of class FileLine from 72 to 40
bytes:
- Reduce file name index from 32 to 16 bits. This still allows 64K
unique input files, which is hopefully enough.
- Intern message/warning enable bitset and use a 16-bit index, again
allowing 64K unique sets which is hopefully enough.
- Put the m_waive flag into the sign bit of one of the line numbers.
- Use explicit reference counting to avoid overhead of shared_ptr.
Added assertions to ensure interned data fits within it's index space.
This saves ~5-10% peak memory consumption at no measurable run-time cost
on various designs.
- 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.
Geza Lore
Wilson Snyder
github action
Ryszard Rozak
Anthony Donlon
Mariusz Glebocki
James Shi
Larry Doolittle
Arkadiusz Kozdra
Krzysztof Bieganski