diff options
Diffstat (limited to 'frontends')
| -rw-r--r-- | frontends/ast/genrtlil.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/frontends/ast/genrtlil.cc b/frontends/ast/genrtlil.cc index d4299bf69..e0a522430 100644 --- a/frontends/ast/genrtlil.cc +++ b/frontends/ast/genrtlil.cc @@ -1000,6 +1000,12 @@ void AstNode::detectSignWidth(int &width_hint, bool &sign_hint, bool *found_real if (found_real) *found_real = false; detectSignWidthWorker(width_hint, sign_hint, found_real); + + constexpr int kWidthLimit = 1 << 24; + if (width_hint >= kWidthLimit) + log_file_error(filename, location.first_line, + "Expression width %d exceeds implementation limit of %d!\n", + width_hint, kWidthLimit); } static void check_unique_id(RTLIL::Module *module, RTLIL::IdString id, |