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authorJohann Glaser <Johann.Glaser@gmx.at>2014-05-28 16:50:13 +0200
committerJohann Glaser <Johann.Glaser@gmx.at>2014-05-28 16:50:13 +0200
commit63dfbb18cfb34d72746565a3eb3ffbcd7451cdab (patch)
treec849043dd52bdb0658b855581482288244b35a5a /frontends
parent684c85902d259a0db3ac5271b540549e98646306 (diff)
new flags -ignore_miss_func and -ignore_miss_dir for read_liberty
Diffstat (limited to 'frontends')
-rw-r--r--frontends/liberty/liberty.cc44
1 files changed, 40 insertions, 4 deletions
diff --git a/frontends/liberty/liberty.cc b/frontends/liberty/liberty.cc
index 485d28ee..285491e0 100644
--- a/frontends/liberty/liberty.cc
+++ b/frontends/liberty/liberty.cc
@@ -459,6 +459,13 @@ struct LibertyFrontend : public Frontend {
log(" ignore re-definitions of modules. (the default behavior is to\n");
log(" create an error message.)\n");
log("\n");
+ log(" -ignore_miss_func\n");
+ log(" ignore cells with missing function specification of outputs\n");
+ log("\n");
+ log(" -ignore_miss_dir\n");
+ log(" ignore cells with a missing or invalid direction\n");
+ log(" specification on a pin\n");
+ log("\n");
log(" -setattr <attribute_name>\n");
log(" set the specified attribute (to the value 1) on all loaded modules\n");
log("\n");
@@ -467,6 +474,8 @@ struct LibertyFrontend : public Frontend {
{
bool flag_lib = false;
bool flag_ignore_redef = false;
+ bool flag_ignore_miss_func = false;
+ bool flag_ignore_miss_dir = false;
std::vector<std::string> attributes;
log_header("Executing Liberty frontend.\n");
@@ -482,6 +491,14 @@ struct LibertyFrontend : public Frontend {
flag_ignore_redef = true;
continue;
}
+ if (arg == "-ignore_miss_func") {
+ flag_ignore_miss_func = true;
+ continue;
+ }
+ if (arg == "-ignore_miss_dir") {
+ flag_ignore_miss_dir = true;
+ continue;
+ }
if (arg == "-setattr" && argidx+1 < args.size()) {
attributes.push_back(RTLIL::escape_id(args[++argidx]));
continue;
@@ -507,11 +524,9 @@ struct LibertyFrontend : public Frontend {
}
// log("Processing cell type %s.\n", RTLIL::id2cstr(cell_name));
- cell_count++;
RTLIL::Module *module = new RTLIL::Module;
module->name = cell_name;
- design->modules[module->name] = module;
for (auto &attr : attributes)
module->attributes[attr] = 1;
@@ -520,7 +535,16 @@ struct LibertyFrontend : public Frontend {
if (node->id == "pin" && node->args.size() == 1) {
LibertyAst *dir = node->find("direction");
if (!dir || (dir->value != "input" && dir->value != "output" && dir->value != "internal"))
- log_error("Missing or invalid dircetion for pin %s of cell %s.\n", node->args.at(0).c_str(), RTLIL::id2cstr(module->name));
+ {
+ if (!flag_ignore_miss_dir)
+ {
+ log_error("Missing or invalid dircetion for pin %s of cell %s.\n", node->args.at(0).c_str(), RTLIL::id2cstr(module->name));
+ } else {
+ log("Ignoring cell %s with missing or invalid dircetion for pin %s.\n", RTLIL::id2cstr(module->name), node->args.at(0).c_str());
+ delete module;
+ goto skip_cell;
+ }
+ }
if (!flag_lib || dir->value != "internal")
module->new_wire(1, RTLIL::escape_id(node->args.at(0)));
}
@@ -556,7 +580,16 @@ struct LibertyFrontend : public Frontend {
LibertyAst *func = node->find("function");
if (func == NULL)
- log_error("Missing function on output %s of cell %s.\n", RTLIL::id2cstr(wire->name), RTLIL::id2cstr(module->name));
+ {
+ if (!flag_ignore_miss_func)
+ {
+ log_error("Missing function on output %s of cell %s.\n", RTLIL::id2cstr(wire->name), RTLIL::id2cstr(module->name));
+ } else {
+ log("Ignoring cell %s with missing function on output %s.\n", RTLIL::id2cstr(module->name), RTLIL::id2cstr(wire->name));
+ delete module;
+ goto skip_cell;
+ }
+ }
RTLIL::SigSpec out_sig = parse_func_expr(module, func->value.c_str());
module->connections.push_back(RTLIL::SigSig(wire, out_sig));
@@ -564,6 +597,9 @@ struct LibertyFrontend : public Frontend {
}
module->fixup_ports();
+ design->modules[module->name] = module;
+ cell_count++;
+skip_cell:;
}
log("Imported %d cell types from liberty file.\n", cell_count);