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Martin Whitaker
21f33085f0
Functions that appear in continuous assignment expressions and that have hidden dependencies or side effects need to be re-evaluated whenever any input to the expression changes. This patch adds support in the compiler and vvp runtime to enable this. This is currently activated for any system function call that has no arguments. The user may also force it to be used for any user function by passing the option -gstrict-ca-eval to the compiler driver. This patch also removes the -dautomatic option which was used for gaining confidence in the code that supports automatic tasks and functions. It is believed that the testsuite provides reasonable fault coverage, and further tests can be added if bugs are found.