diff options
Diffstat (limited to 'kernel/timinginfo.h')
| -rw-r--r-- | kernel/timinginfo.h | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/kernel/timinginfo.h b/kernel/timinginfo.h index fb4e0930d..d818e580b 100644 --- a/kernel/timinginfo.h +++ b/kernel/timinginfo.h @@ -82,6 +82,9 @@ struct TimingInfo for (auto cell : module->cells()) { if (cell->type == ID($specify2)) { + auto en = cell->getPort(ID::EN); + if (en.is_fully_const() && !en.as_bool()) + continue; auto src = cell->getPort(ID::SRC); auto dst = cell->getPort(ID::DST); for (const auto &c : src.chunks()) @@ -128,11 +131,9 @@ struct TimingInfo int rise_max = cell->getParam(ID::T_RISE_MAX).as_int(); int fall_max = cell->getParam(ID::T_FALL_MAX).as_int(); int max = std::max(rise_max,fall_max); - if (max < 0) - log_warning("Module '%s' contains specify cell '%s' with T_{RISE,FALL}_MAX < 0 which is currently unsupported. Ignoring.\n", log_id(module), log_id(cell)); - if (max <= 0) { - log_debug("Module '%s' contains specify cell '%s' with T_{RISE,FALL}_MAX <= 0 which is currently unsupported. Ignoring.\n", log_id(module), log_id(cell)); - continue; + if (max < 0) { + log_warning("Module '%s' contains specify cell '%s' with T_{RISE,FALL}_MAX < 0 which is currently unsupported. Clamping to 0.\n", log_id(module), log_id(cell)); + max = 0; } for (const auto &d : dst) { auto &v = t.arrival[NameBit(d)]; @@ -152,11 +153,9 @@ struct TimingInfo if (!c.wire->port_input) log_error("Module '%s' contains specify cell '%s' where DST '%s' is not a module input.\n", log_id(module), log_id(cell), log_signal(dst)); int max = cell->getParam(ID::T_LIMIT_MAX).as_int(); - if (max < 0) - log_warning("Module '%s' contains specify cell '%s' with T_LIMIT_MAX < 0 which is currently unsupported. Ignoring.\n", log_id(module), log_id(cell)); - if (max <= 0) { - log_debug("Module '%s' contains specify cell '%s' with T_LIMIT_MAX <= 0 which is currently unsupported. Ignoring.\n", log_id(module), log_id(cell)); - continue; + if (max < 0) { + log_warning("Module '%s' contains specify cell '%s' with T_LIMIT_MAX < 0 which is currently unsupported. Clamping to 0.\n", log_id(module), log_id(cell)); + max = 0; } for (const auto &s : src) { auto &v = t.required[NameBit(s)]; |