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Only use sha1 checksums for names of parametric modules when the verbose form is to long

This commit is contained in:
Clifford Wolf 2013-04-26 13:13:58 +02:00
parent e6dca3445a
commit 453a29c9f6
1 changed files with 20 additions and 9 deletions
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29
frontends/ast/ast.cc
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@ -787,6 +787,7 @@ RTLIL::IdString AstModule::derive(RTLIL::Design *design, std::map<RTLIL::IdStrin
flag_lib = lib;
use_internal_line_num();
std::string para_info;
std::vector<unsigned char> hash_data;
hash_data.insert(hash_data.end(), name.begin(), name.end());
hash_data.push_back(0);
@ -803,6 +804,7 @@ RTLIL::IdString AstModule::derive(RTLIL::Design *design, std::map<RTLIL::IdStrin
if (parameters.count(child->str) > 0) {
log("Parameter %s = %s\n", child->str.c_str(), log_signal(RTLIL::SigSpec(parameters[child->str])));
rewrite_parameter:
para_info += stringf("%s=%s", child->str.c_str(), log_signal(RTLIL::SigSpec(parameters[child->str])));
child->delete_children();
child->children.push_back(AstNode::mkconst_bits(parameters[para_id].bits, false));
hash_data.insert(hash_data.end(), child->str.begin(), child->str.end());
@ -823,17 +825,26 @@ RTLIL::IdString AstModule::derive(RTLIL::Design *design, std::map<RTLIL::IdStrin
if (parameters.size() > 0)
log_error("Requested parameter `%s' does not exist in module `%s'!\n", parameters.begin()->first.c_str(), name.c_str());
unsigned char hash[20];
unsigned char *hash_data2 = new unsigned char[hash_data.size()];
for (size_t i = 0; i < hash_data.size(); i++)
hash_data2[i] = hash_data[i];
sha1::calc(hash_data2, hash_data.size(), hash);
delete[] hash_data2;
std::string modname;
char hexstring[41];
sha1::toHexString(hash, hexstring);
if (para_info.size() > 60)
{
unsigned char hash[20];
unsigned char *hash_data2 = new unsigned char[hash_data.size()];
for (size_t i = 0; i < hash_data.size(); i++)
hash_data2[i] = hash_data[i];
sha1::calc(hash_data2, hash_data.size(), hash);
delete[] hash_data2;
std::string modname = "$paramod$" + std::string(hexstring) + "$" + name;
char hexstring[41];
sha1::toHexString(hash, hexstring);
modname = "$paramod$" + std::string(hexstring) + name;
}
else
{
modname = "$paramod" + name + para_info;
}
if (design->modules.count(modname) == 0) {
new_ast->str = modname;