This patch fixes a few more bugs in the enumeration code.
It add support for saving the file and line information to make
diagnostic messages better.
It updates some of the compiler warning messages to use the file
and line information.
It passes if the enumeration type is signed all the way to the
code generators.
It fixes the parser to correctly have the range after the signed
designation for the vector types.
It adds a warning that vvp does not currently support a negative
two state enumeration value.
The pform propagates the parsed enum base type information
to the elaborator so that the base type can be fully elaborated.
This is necessary to get the types of the enumeration literals
correct.
When enum names are used as r-values in expressions, use their
values. Treat the enum names similar to (but not exactly as)
localparams so that they fit into the rest of the elaboration
flow naturally.
The l-value of a defparam assignment is a hierarchical name that may
include array selects to select scopes from module arrays. Therefore
it makes no sense to store parsed defparams in a map. Instead, they
should go into an ordered list. This also maked more sense because later
defparams *may* have the same name as a previous defparam, and will
override the previous defparam. So replace the map of parsed defparams
with a list of parsed defparams.
Also, as soon as the defparam expression is elaborated, the list entry
is no longer needed, so delete it. Save memory.
Cary R
Stephen Williams
Larry Doolittle
steve