This change gets rid of most of the shared pointers and useless memory
allocations. Also takes advantage of higher-arity bvxor/concat to
reduce amount of data sent to the solver.
Signed-off-by: Arkadiusz Kozdra <akozdra@antmicro.com>
libcxx has removed the experimental/coroutine include file in favor of
the C++20-standard coroutine include. If the latter is available we
use it otherwise falling back to the existing experimental version (in
which case we also disable the deprecated-experimental-coroutine warning).
(See also https://reviews.llvm.org/D108697.)
operand order reversed for AstCMethodHard "neq"
interface between C-style arrays and VlUnpacked
overloads added to VlUnpacked::neq(), VlUnpacked::assign()
VlUnpacked::operator=() added
Fixes #5125
* Internals: Move getenvStr to verilatedos. No functional change intended.
* Fix POS34-C. Do not call putenv() with a pointer to an automatic variable as the argument.
Signed-off-by: Arkadiusz Kozdra <akozdra@antmicro.com>
For NBAs that might execute a dynamic number of times in a single
evaluation (specifically: those that assign to array elements inside
loops), we introduce a new run-time VlNBACommitQueue data-structure
(currently a vector), which stores all pending updates and the necessary
info to reconstruct the LHS reference of the AstAssignDly at run-time.
All variables needing a commit queue has their corresponding unique
commit queue.
All NBAs to a variable that requires a commit queue go through the
commit queue. This is necessary to preserve update order in sequential
code, e.g.:
a[7] <= 10
for (int i = 1 ; i < 10; ++i) a[i] <= i;
a[2] <= 10
needs to end with array elements 1..9 being 1, 10, 3, 4, 5, 6, 7, 8, 9.
This enables supporting common forms of NBAs to arrays on the left hand
side of <= in non-suspendable/non-fork code. (Suspendable/fork
implementation is unclear to me so I left it unchanged, see #5084).
Any NBA that does not need a commit queue (i.e.: those that were
supported before), use the same scheme as before, and this patch should
have no effect on the generated code for those NBAs.
