Optimize splitting trigger computation and dump (#5798)

src/V3Sched.cpp

@@ -789,6 +789,10 @@ const TriggerKit createTriggers(AstNetlist* netlistp, AstCFunc* const initFuncp,
     // The debug code might leak signal names, so simply delete it when using --protect-ids
     if (v3Global.opt.protectIds()) dumpp->stmtsp()->unlinkFrBackWithNext()->deleteTree();
 
+    // These might get large when we have a lot of triggers, so split if necessary
+    splitCheck(funcp);
+    splitCheck(dumpp);
+
     return {vscp, funcp, dumpp, map};
 }