Report every source position as the compact string "start:begin:end" of
byte offsets (begin/end empty when not applicable): a port/signal is
"start::", a module "start::end" (module .. endmodule), an instance
"start::end" (.. ';'), and an always/initial block or generate frame
"start:begin:end". This replaces the {"off":0,"line":N,"col":0} object
whose off/col were always zero, and matches the GHDL --flow exporter's
format so one consumer works across both tools.
The ivl_target API exposes only line numbers, so the byte offsets and
begin/end spans are recovered by a small comment/string-aware scanner
that reads the source files (cached, with a per-file line table).
Bump the schema to flowtracer1.verilog.v0 (companion to GHDL's
flowtracer1.vhdl.v0). flow_reg.py checks the new schema and that every
pos/inst_pos is well formed; tgt-flow.rst documents the position format.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add a new compile-time code-generator target that exports the elaborated
design as a JSON dataflow database (schema flowtracer1.merged.v0), shared
with the GHDL --flow exporter so a single consumer works across Verilog
and VHDL designs.
The exporter walks the elaborated netlist via ivl_target.h and emits:
- modules[] keyed by module type, with ports/generics/signals and
name-based processes[] and assignments[] (reads/drives/sensitivity
as signal names);
- hierarchy[] with port_map associations resolved through the shared
nexus, and generate blocks as transparent scope:true frames;
- a secondary integer-id nets[]/cells[] graph (drivers/loads,
clocked/clock_net).
Process reads/drives come from walking the statement/expression tree;
continuous assigns are recovered from logic/LPM devices with transitive
backward-cone resolution through synthetic nets. Generate scopes are
transparent to dataflow attribution and to port-map actual resolution.
Wired into the build (SUBDIRS, configure.ac), documented in
Documentation/targets/tgt-flow.rst, and covered by ivtest/flow_reg.py
(flow_basic, flow_comb, flow_generate, flow_genpath).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Check that statements that are not allowed in functions or final procedures
are still rejected when they are placed in a named block scope.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that queue push_back(), push_front() and insert() report errors when
called with too few or too many arguments.
These tests are expected to fail as compile/elaboration errors. They also make
sure the invalid calls do not crash during elaboration while reporting the
argument count error.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that multi-dimensional packed vector class properties can be emitted,
assigned, and read back through a class object.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that assignment patterns are evaluated in the queue element type
context when they are passed to the queue `push_front()`, `push_back()` and
`insert()` methods.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Extend the non-blocking event control assignment tests to check that a 0 or
negative repeat value is handled correctly. In this case the assignment
should be executed like a regular non-blocking assignment and the event
control should be ignored.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that continuous assignments to unpacked net arrays preserve delay and
drive strength on the generated element drivers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that SystemVerilog net declarations can mix entries with and
without initialization.
Check that in SystemVerilog it is possible to do assignments within net array
declarations.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that continuous assignment of an assignment pattern to a single element
unpacked array is accepted. Check that assigning a scalar expression to the
whole unpacked array is rejected for both procedural and continuous
assignments.
Check that a selected element of a single element static unpacked array can be
used in a continuous l-value concatenation.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that enum, struct, union and class restricted type parameters are
accepted. Check that mismatched default values and overrides are rejected.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that soft packed unions can have members with different widths.
Check that the `soft` qualifier implies `packed` and that nested soft
packed unions use the same representation recursively.
Also check that member bits are right-justified and that assignments to
narrower members leave the MSBs beyond the member bits unchanged. Check
that soft packed unions reject default member values.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that each valid `begin_keywords` selector is accepted. Only check
that the selector itself is accepted, in these tests there is no check if
the correct keywords are actually accepted or rejected since that would get
pretty exhaustive.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Add flags to enable IEEE1800-2017 and IEEE1800-2023 languages generations
and also support them in the `begin_keywords macro. Since neither defines
new keywords they'll use the same keyword mask as 2012.
Update the driver, compiler, documentation and regression test harness so
-g2017 and -g2023 are recognized as language generation flags.
There are no specific features from these versions added yet, this is just
the necessary infrastructure to allow gating new features from those
generations when they are added later.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
A few JSON regression test entries reference the wrong source or gold
files. There are also two regress-vvp list entries that reference each
other's JSON file.
Use the matching source and gold files for those entries.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The sv_mixed_assign2 JSON entry accidentally references
sv_mixed_assign1.v. Point it at sv_mixed_assign2.v instead.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that class objects, dynamic arrays, queues, strings and static
unpacked arrays can not be used as l-value concatenation operands. Check
procedural and continuous assignment concatenations, including single
operand concatenations.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that the compiler reports an error for `posedge`, `negedge` and `edge`
event controls on named events. Edge controls can not be used with named
events.
There is already an existing test that checks both `posedge` and `negedge`.
Split it into separate tests so that each invalid event control is checked
independently.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that package variables can use explicit static lifetime. Check that
automatic lifetime is rejected for package variables.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that string literals can be assigned to byte arrays. Check that
invalid target array types are reported as errors.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Check that drive strength can be specified between the net type and the
data type in a net declaration and that vector gate arrays resolve
strengths correctly.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Replace .github/test.sh with a unified set of targets installed
via `make check-*` in ivtest/, thereby removing CI-specific test
coordination. This avoids duplication in the regression logic and
ensures consistent execution between local and CI environments.
PLI1-dependent tests are now correctly controlled via
`configure --enable-libveriuser`.
Currently, the regression suite still depends on an iverilog package,
which must be installed manually at the location specified with
`configure --prefix=*`. Afterward, the complete regression suite
(VVP, VPI, and Python tests) can be run via `make check-installed`
and individual checks can be run with `check-installed-vpi`,
`check-installed-vvp` and `check-installed-vvp-py`.
William P. Moore
Lars-Peter Clausen
Cary R.
Jose Tejada
Ralf Habacker
Martin Whitaker