The original code called V3Const::constifyParamsEdit() in
V3Width::visit(AstInsideRange*) to fold negative bin bounds
(e.g., NEGATE(100) -> -100) for covergroup bins. Since
constifyParamsEdit uses m_required=true, it errored on any
non-constant expression -- breaking the upstream test
t_constraint_array_index_simple which uses a foreach loop
variable 'i' in an inside constraint expression.
Fix: Remove the unconditional constifyParamsEdit calls from
V3Width::visit(AstInsideRange*). Instead:
- In V3Width: when m_vup is null (covergroup bin context,
not an expression context), use constifyEdit (m_required=false)
to fold constant arithmetic before iterating children.
- In V3Covergroup: call constifyEdit at the two sites that
cast InsideRange bounds to AstConst for bin expansion.
This moves the covergroup-specific concern to the right layer
(V3Covergroup) while keeping V3Width safe for all contexts.
Also update golden files for t_covergroup_trans_3value,
t_covergroup_trans_restart, and t_covergroup_with_sample_args_too_many_bad
whose line numbers shifted by 1 due to the SPDX copyright header
additions in the previous commit.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
e5594e9c6c