The necessary options to support C++ coroutines vary greatly between
compilers, its versions, and the standard library being used. This
patch makes the check for coroutine support more robust by adding a
declaration of a coroutine variable, instead of just including the
header. It also makes sure that the HAVE_COROUTINE and
CFG_CXXFLAGS_COROUTINES flags are always set together, and only when
coroutine support is detected.
Documentation states that minimum of all reported coverage of all signals in a line should be taken.
Previous logic would break if there were any signals with zero coverage followed by signals with
nonzero coverage - a minimum from those nonzero toggle count would be taken, disregarding zero
coverage of previous signals.
Internal-tag: [#62193]
Signed-off-by: Krzysztof Obłonczek <koblonczek@antmicro.com>
`$psprintf` is a non-standard system function present in some other
simulators, and has been rejected for standardization by IEEE because
of being basically the same as `$sformatf`.
To encourage users to fix their codebase, a warning is emitted by
default, but it gets otherwise interpreted as `$sformatf` as early as
during lexing.
Signed-off-by: Arkadiusz Kozdra <akozdra@antmicro.com>
* wording/formatting
Signed-off-by: Arkadiusz Kozdra <akozdra@antmicro.com>
---------
Signed-off-by: Arkadiusz Kozdra <akozdra@antmicro.com>
* Support 2D dynamic array initialization (#4700)
- new[] on sub arrays (as per original issue)
- Built-in methods for sub-arrays
- Initialization and literals assignmensts
- Dynamic array as an element for other arrays and queues
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
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.
No functional change. Postpone the conversion of all AstAssignDlys that
use the 'VdlySet' scheme for array LHSs until after the complete
traversal of the netlist. The next patch takes advantage of this by
using some extra information also gathered through the traversal to
change the conversion.
AstAssignDlys inside suspendable or fork are not deferred and are
processed identical to the previous version.
There are some TODOs in this patch that are fixed in the next patch.
Output code perturbed due to variable ordering.
MULTIDRIVEN message ordering perturbed due to processing order change.
With --stats, we will print DFG pattern combinations, one per line, as
S-expressions to new stat files, together with their frequency, to aid
discovery of new peephole patterns.
