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verilog: Support module-scoped task/function calls

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This is primarily intended to enable the standard-permitted use of
module-scoped identifiers to refer to tasks and non-constant functions.
As a side-effect, this also adds support for the non-standard use of
module-scoped identifiers referring to constant functions, a feature
that is supported in some other tools, including Iverilog.
This commit is contained in:
Zachary Snow 2022-10-29 15:14:11 -04:00
parent 31c15e5fa6
commit 71e7e09092
3 changed files with 52 additions and 0 deletions
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4
frontends/ast/simplify.cc
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@ -3656,6 +3656,8 @@ skip_dynamic_range_lvalue_expansion:;
goto apply_newNode;
}
if (current_scope.count(str) == 0)
str = try_pop_module_prefix();
if (current_scope.count(str) == 0 || current_scope[str]->type != AST_FUNCTION)
log_file_error(filename, location.first_line, "Can't resolve function name `%s'.\n", str.c_str());
}
@ -3727,6 +3729,8 @@ skip_dynamic_range_lvalue_expansion:;
goto apply_newNode;
}
if (current_scope.count(str) == 0)
str = try_pop_module_prefix();
if (current_scope.count(str) == 0 || current_scope[str]->type != AST_TASK)
log_file_error(filename, location.first_line, "Can't resolve task name `%s'.\n", str.c_str());
}