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Added additional checks for A_SIGNED == B_SIGNED for cells with that constraint

This commit is contained in:
Clifford Wolf 2013-12-31 14:54:06 +01:00
parent 1cd975ef8d
commit 15acf593e7
1 changed files with 11 additions and 4 deletions
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15
kernel/rtlil.cc
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@ -337,7 +337,7 @@ namespace {
expected_ports.insert(name);
}
void check_expected()
void check_expected(bool check_matched_sign = true)
{
for (auto &para : cell->parameters)
if (expected_params.count(para.first) == 0)
@ -345,6 +345,13 @@ namespace {
for (auto &conn : cell->connections)
if (expected_ports.count(conn.first) == 0)
error(__LINE__);
if (expected_params.count("\\A_SIGNED") != 0 && expected_params.count("\\B_SIGNED") && check_matched_sign) {
bool a_is_signed = param("\\A_SIGNED") != 0;
bool b_is_signed = param("\\B_SIGNED") != 0;
if (a_is_signed != b_is_signed)
error(__LINE__);
}
}
void check_gate(const char *ports)
@ -403,7 +410,7 @@ namespace {
port("\\A", param("\\A_WIDTH"));
port("\\B", param("\\B_WIDTH"));
port("\\Y", param("\\Y_WIDTH"));
check_expected();
check_expected(false);
return;
}
@ -425,7 +432,7 @@ namespace {
port("\\A", param("\\A_WIDTH"));
port("\\B", param("\\B_WIDTH"));
port("\\Y", param("\\Y_WIDTH"));
check_expected();
check_expected(cell->type != "$pow");
return;
}
@ -443,7 +450,7 @@ namespace {
port("\\A", param("\\A_WIDTH"));
port("\\B", param("\\B_WIDTH"));
port("\\Y", param("\\Y_WIDTH"));
check_expected();
check_expected(false);
return;
}