riscv
/
yosys
mirror of https://github.com/YosysHQ/yosys.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Add SVA NON_CONSECUTIVE_REPEAT and GOTO_REPEAT support 

Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf 2018-03-06 15:39:46 +01:00
parent 7bb83ae9f2
commit 03b49654b1
1 changed files with 41 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
frontends/verific/verificsva.cc
View File

@ -211,6 +211,13 @@ struct SvaFsm
return idx;
}
int createStartNode()
{
int node = createNode();
createLink(startNode, node);
return node;
}
void createEdge(int from_node, int to_node, SigBit ctrl = State::S1)
{
log_assert(!materialized);
@ -1061,7 +1068,7 @@ struct VerificSvaImporter
if (inst->Type() == PRIM_SVA_FIRST_MATCH)
{
SvaFsm match_fsm(clocking);
match_fsm.createLink(parse_sequence(match_fsm, match_fsm.startNode, inst->GetInput()), match_fsm.acceptNode);
match_fsm.createLink(parse_sequence(match_fsm, match_fsm.createStartNode(), inst->GetInput()), match_fsm.acceptNode);
int node = fsm.createNode();
match_fsm.getDFsm(fsm, start_node, node);
@ -1111,7 +1118,7 @@ struct VerificSvaImporter
return node;
}
if (inst->Type() == PRIM_SVA_CONSECUTIVE_REPEAT)
if (inst->Type() == PRIM_SVA_CONSECUTIVE_REPEAT || inst->Type() == PRIM_SVA_NON_CONSECUTIVE_REPEAT || inst->Type() == PRIM_SVA_GOTO_REPEAT)
{
const char *sva_low_s = inst->GetAttValue("sva:low");
const char *sva_high_s = inst->GetAttValue("sva:high");
@ -1121,17 +1128,20 @@ struct VerificSvaImporter
bool sva_inf = !strcmp(sva_high_s, "$");
Net *body_net = inst->GetInput();
Instance *body_inst = net_to_ast_driver(body_net);
int node = start_node;
if (body_inst != nullptr)
parser_error(body_inst);
int node = parse_sequence(fsm, start_node, body_net);
for (int i = 1; i < sva_low; i++)
for (int i = 0; i < sva_low; i++)
{
int next_node = fsm.createNode();
fsm.createEdge(node, next_node);
if (i == 0)
fsm.createLink(node, next_node);
else
fsm.createEdge(node, next_node);
if (inst->Type() == PRIM_SVA_NON_CONSECUTIVE_REPEAT || inst->Type() == PRIM_SVA_GOTO_REPEAT)
fsm.createEdge(next_node, next_node);
node = parse_sequence(fsm, next_node, body_net);
}
@ -1139,6 +1149,10 @@ struct VerificSvaImporter
{
int next_node = fsm.createNode();
fsm.createEdge(node, next_node);
if (inst->Type() == PRIM_SVA_NON_CONSECUTIVE_REPEAT || inst->Type() == PRIM_SVA_GOTO_REPEAT)
fsm.createEdge(next_node, next_node);
next_node = parse_sequence(fsm, next_node, body_net);
fsm.createLink(next_node, node);
}
@ -1148,12 +1162,19 @@ struct VerificSvaImporter
{
int next_node = fsm.createNode();
fsm.createEdge(node, next_node);
if (inst->Type() == PRIM_SVA_NON_CONSECUTIVE_REPEAT || inst->Type() == PRIM_SVA_GOTO_REPEAT)
fsm.createEdge(next_node, next_node);
next_node = parse_sequence(fsm, next_node, body_net);
fsm.createLink(node, next_node);
node = next_node;
}
}
if (inst->Type() == PRIM_SVA_NON_CONSECUTIVE_REPEAT)
fsm.createEdge(node, node);
return node;
}
@ -1168,14 +1189,14 @@ struct VerificSvaImporter
if (inst->Type() == PRIM_SVA_SEQ_AND)
{
SvaFsm fsm1(clocking);
fsm1.createLink(parse_sequence(fsm1, fsm1.startNode, inst->GetInput1()), fsm1.acceptNode);
fsm1.createLink(parse_sequence(fsm1, fsm1.createStartNode(), inst->GetInput1()), fsm1.acceptNode);
SvaFsm fsm2(clocking);
fsm2.createLink(parse_sequence(fsm2, fsm2.startNode, inst->GetInput2()), fsm2.acceptNode);
fsm2.createLink(parse_sequence(fsm2, fsm2.createStartNode(), inst->GetInput2()), fsm2.acceptNode);
SvaFsm combined_fsm(clocking);
fsm1.getDFsm(combined_fsm, combined_fsm.startNode, -1, combined_fsm.acceptNode);
fsm2.getDFsm(combined_fsm, combined_fsm.startNode, -1, combined_fsm.acceptNode);
fsm1.getDFsm(combined_fsm, combined_fsm.createStartNode(), -1, combined_fsm.acceptNode);
fsm2.getDFsm(combined_fsm, combined_fsm.createStartNode(), -1, combined_fsm.acceptNode);
int node = fsm.createNode();
combined_fsm.getDFsm(fsm, start_node, -1, node);
@ -1201,12 +1222,12 @@ struct VerificSvaImporter
if (inst->Type() == PRIM_SVA_INTERSECT)
{
intersect_fsm.createLink(parse_sequence(intersect_fsm, intersect_fsm.startNode, inst->GetInput1()), intersect_fsm.acceptNode);
intersect_fsm.createLink(parse_sequence(intersect_fsm, intersect_fsm.createStartNode(), inst->GetInput1()), intersect_fsm.acceptNode);
}
else
{
int n = intersect_fsm.createNode();
intersect_fsm.createLink(intersect_fsm.startNode, n);
intersect_fsm.createLink(intersect_fsm.createStartNode(), n);
intersect_fsm.createEdge(n, n);
n = parse_sequence(intersect_fsm, n, inst->GetInput1());
@ -1216,7 +1237,7 @@ struct VerificSvaImporter
}
intersect_fsm.in_cond_mode = true;
intersect_fsm.createLink(parse_sequence(intersect_fsm, intersect_fsm.startNode, inst->GetInput2()), intersect_fsm.condNode);
intersect_fsm.createLink(parse_sequence(intersect_fsm, intersect_fsm.createStartNode(), inst->GetInput2()), intersect_fsm.condNode);
intersect_fsm.in_cond_mode = false;
int node = fsm.createNode();
@ -1279,7 +1300,7 @@ struct VerificSvaImporter
int node;
SvaFsm antecedent_fsm(clocking);
node = parse_sequence(antecedent_fsm, antecedent_fsm.startNode, antecedent_net);
node = parse_sequence(antecedent_fsm, antecedent_fsm.createStartNode(), antecedent_net);
if (inst->Type() == PRIM_SVA_NON_OVERLAPPED_IMPLICATION) {
int next_node = antecedent_fsm.createNode();
antecedent_fsm.createEdge(node, next_node);
@ -1328,7 +1349,7 @@ struct VerificSvaImporter
}
SvaFsm consequent_fsm(clocking, antecedent_match);
node = parse_sequence(consequent_fsm, consequent_fsm.startNode, consequent_net);
node = parse_sequence(consequent_fsm, consequent_fsm.createStartNode(), consequent_net);
consequent_fsm.createLink(node, consequent_fsm.acceptNode);
get_fsm_accept_reject(consequent_fsm, accept_p, reject_p, consequent_not);
@ -1347,7 +1368,7 @@ struct VerificSvaImporter
}
SvaFsm fsm(clocking);
int node = parse_sequence(fsm, fsm.startNode, net);
int node = parse_sequence(fsm, fsm.createStartNode(), net);
fsm.createLink(node, fsm.acceptNode);
get_fsm_accept_reject(fsm, accept_p, reject_p, prop_not);