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Lars-Peter Clausen
ca6b8d376a
Verilog and SystemVerilog require parentheses on every module instance,
even when the module has no ports (IEEE 1364-2005 12.1.2 and IEEE 1800-2023
23.3.2). Omitting them is not valid in any standard version.
Icarus accepts arrayed instances such as `M m[1:0];` as an extension added
by commit 2d498363d7 ("Handle instance array of port-less modules.").
Check that other parentheses-less forms, such as `M m;` and
`M a[1:0], b, c();`, remain rejected to avoid further deviations from the
standard. Accepting scalar instances without parentheses would also
conflict with SystemVerilog variable declarations such as `M m;`, where
`M` names a type.
Also check that the existing array extension and mixed instance lists
such as `M a[1:0], b(), c[1:0];` remain accepted.
Signed-off-by: Lars-Peter Clausen <[email protected]>
#################### # # Main test script # #################### There are a group of tests that are meant to exercise the compiler and the run time. To run them just type: ./regress or perl vvp_reg.pl or if perl is located in /usr/bin ./vvp_reg.pl The output from these tests are displayed on the screen and are also placed in the regression_report.txt file. The expected output for the current development release is located in the regression_report-devel.txt file. The expected output for stable (released) versions can be found in files named regression_report-v<version>.txt. The results from individual tests can be found in the log directory and gold files, when needed, are in the gold directory. The source files can be found in the ivltests and contrib directories. The list of tests and how they are run are in the regress-*.list files. To check a specific suffixed version of Icarus Verilog use the --suffix=<suffix> flag to tell the script which version to run e.g.(--suffix=-10 will test iverilog-10, etc.). You can also run the test with valgrind (very very slow) by giving the script the --with-valgrind flag. #################### # # VPI test script # #################### To test the VPI interface type: perl vpi_reg.pl or if perl is located in /usr/bin ./vpi_reg.pl All these tests should pass. The individual test results are found in the vpi_log directory and the gold files are in the vpi_gold directory. The source files are in the vpi directory. The vpi_regress.list file has the tests to perform. This script also takes the --suffix=<suffix> and the --with-valgrind flags described above. #################### # # VHDL test script # #################### ** Note this is no longer maintained ** This test script require that ghdl be installed in your path and is used to test the Verilog to VHDL translation. perl vhdl_reg.pl or if perl is located in /usr/bin ./vhdl_reg.pl The tests are expected to pass except for the tri* tests. This script also takes the --suffix=<suffix> and the --with-valgrind flags described above. #################### # # BLIF test script # #################### This test script require that abc be installed in your path and is used to test the Verilog to VHDL translation. python blif_reg.py There is no expected output as of yet so to check for regressions simply run with and without your patches. #################### # # Windows (MinGW) test issues # #################### When running under Windows using a MinGW build in a MSYS2 shell, the expected output from vvp_reg.pl can be found in regression_report-msys2.txt. The MinGW/MSYS2 specific test exceptions can be found in regress-msys2.list. Exceptions for the VPI tests can be found in the vpi_regress.list file. With Windows 10 and MSYS2, there are now very few differences between the Windows and Linux builds.