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Improve handling of "bus" pins in liberty front-end (some files use bus.pin.direction)

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Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf 2018-02-15 17:36:08 +01:00
parent c1abd3b02c
commit 2c95dfcb5b
1 changed files with 6 additions and 0 deletions
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6
frontends/liberty/liberty.cc
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@ -582,6 +582,12 @@ struct LibertyFrontend : public Frontend {
LibertyAst *dir = node->find("direction");
if (dir == nullptr) {
LibertyAst *pin = node->find("pin");
if (pin != nullptr)
dir = pin->find("direction");
}
if (!dir || (dir->value != "input" && dir->value != "output" && dir->value != "inout" && dir->value != "internal"))
log_error("Missing or invalid direction for bus %s on cell %s.\n", node->args.at(0).c_str(), log_id(module->name));