bool canSimulate(AstNode *nodep) {
SimulateVisitor simvis;
AstNode* clonep = nodep->cloneTree(true);
simvis.mainCheckTree(clonep);
pushDeletep(clonep); clonep = NULL;
return simvis.optimizable();
}
bool simulateTree(AstNode *nodep, const V3Number *loopValue, AstNode *dtypep, V3Number &outNum) {
AstNode* clone = nodep->cloneTree(true);
if (!clone) {
nodep->v3fatalSrc("Failed to clone tree");
return false;
}
if (loopValue) {
m_varValuep = new AstConst (nodep->fileline(), *loopValue);
// Iteration requires a back, so put under temporary node
AstBegin* tempp = new AstBegin (nodep->fileline(), "[EditWrapper]", clone);
m_varModeReplace = true;
tempp->stmtsp()->iterateAndNext(*this);
m_varModeReplace = false;
clone = tempp->stmtsp()->unlinkFrBackWithNext();
tempp->deleteTree();
tempp = NULL;
pushDeletep(m_varValuep); m_varValuep = NULL;
}
SimulateVisitor simvis;
simvis.mainParamEmulate(clone);
if (!simvis.optimizable()) {
UINFO(3, "Unable to simulate" << endl);
if (debug()>=9) nodep->dumpTree(cout,"- _simtree: ");
return false;
}
// Fetch the result
V3Number* res = simvis.fetchNumberNull(clone);
if (!res) {
UINFO(3, "No number returned from simulation" << endl);
return false;
}
// Patch up datatype
if (dtypep) {
AstConst new_con (clone->fileline(), *res);
new_con.dtypeFrom(dtypep);
outNum = new_con.num();
return true;
}
outNum = *res;
return true;
}
bool canSimulate(AstNode *nodep) {
SimulateVisitor simvis;
AstNode* clone = nodep->cloneTree(true);
simvis.mainCheckTree(clone);
return simvis.optimizable();
}