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Fix waking --sc wrapper when DPI/delay makes work runnable (#8394) (#8534)

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Fixes #8394
This commit is contained in:
Nazar Zibilyuk
2026-10-01 12:01:17 +01:00
committed by GitHub
parent 71c6638ccf
commit ea536a54b8
10 changed files with 188 additions and 1 deletions
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src/V3EmitCModel.cpp
+5 -1
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@@ -352,6 +352,10 @@ class EmitCModel final : public EmitCFunc {
// Create sensitivity list for when to evaluate the model.
putsDecoration(nullptr, "// Sensitivities on all clocks and combinational inputs\n");
puts("SC_METHOD(eval);\n");
if (v3Global.usesTiming()) {
putsDecoration(nullptr, "// Notified by pending time delays/DPI exports\n");
puts("sensitive << vlSymsp->__Vm_wakeEvent;\n");
}
for (AstNode* nodep = modp->stmtsp(); nodep; nodep = nodep->nextp()) {
if (const AstVar* const varp = VN_CAST(nodep, Var)) {
if (varp->isNonOutput() && (varp->isScSensitive() || varp->isPrimaryClock())) {
@@ -430,7 +434,7 @@ class EmitCModel final : public EmitCFunc {
puts("if (eventsPending()) {\n");
puts("sc_core::sc_time dt = sc_core::sc_time::from_value(nextTimeSlot() - "
"contextp()->time());\n");
puts("next_trigger(dt);\n");
puts("vlSymsp->__Vm_wakeEvent.notify(dt);\n");
puts("}\n");
puts("}\n");
}