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Support $ceil, $floor, etc.

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This commit is contained in:
Wilson Snyder
2011-09-28 21:35:26 -04:00
parent 094d676a8b
commit eb6d42acf9
11 changed files with 308 additions and 12 deletions
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src/V3Width.cpp
+21 -11
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@@ -208,6 +208,13 @@ private:
virtual void visit(AstPowD* nodep, AstNUser* vup) { visit_math_Or_LRr(nodep,vup); }
// Signed/Real: Output real or signed iff LHS signed/real
virtual void visit(AstNegateD* nodep, AstNUser* vup) { visit_math_Or_Lr(nodep,vup); }
// Real: Output real
virtual void visit(AstCeilD* nodep, AstNUser* vup) { visit_math_Or_Lr(nodep,vup); }
virtual void visit(AstExpD* nodep, AstNUser* vup) { visit_math_Or_Lr(nodep,vup); }
virtual void visit(AstFloorD* nodep, AstNUser* vup) { visit_math_Or_Lr(nodep,vup); }
virtual void visit(AstLogD* nodep, AstNUser* vup) { visit_math_Or_Lr(nodep,vup); }
virtual void visit(AstLog10D* nodep, AstNUser* vup) { visit_math_Or_Lr(nodep,vup); }
virtual void visit(AstSqrtD* nodep, AstNUser* vup) { visit_math_Or_Lr(nodep,vup); }
// Widths: out signed/unsigned width = lhs width, input un|signed
virtual void visit(AstSigned* nodep, AstNUser* vup) { visit_Ous_Lus_Wforce(nodep,vup,AstNumeric::SIGNED); }
@@ -1188,14 +1195,14 @@ private:
nodep->taskp()->iterate(*this);
//
// And do the arguments to the task/function too
for (int accept_mode=1; accept_mode>=0; accept_mode--) { // Avoid duplicate code; just do inner stuff twice
for (int accept_mode=0; accept_mode<3; accept_mode++) { // Avoid duplicate code; just do inner stuff several times
reloop:
V3TaskConnects tconnects = V3Task::taskConnects(nodep, nodep->taskp()->stmtsp());
bool lastloop = false;
for (V3TaskConnects::iterator it=tconnects.begin(); !lastloop && it!=tconnects.end(); ++it) {
for (V3TaskConnects::iterator it=tconnects.begin(); it!=tconnects.end(); ++it) {
AstVar* portp = it->first;
AstNode* pinp = it->second;
if (pinp!=NULL) { // Else argument error we'll find later
if (accept_mode) {
if (accept_mode==0) {
// Prelim may cause the node to get replaced; we've lost our
// pointer, so need to iterate separately later
if (portp->attrSFormat()
@@ -1214,7 +1221,7 @@ private:
}
handle.relink(newp);
// Connection list is now incorrect (has extra args in it).
lastloop = true; // so exit early; next loop will correct it
goto reloop; // so exit early; next loop will correct it
}
else if (portp->basicp() && portp->basicp()->keyword()==AstBasicDTypeKwd::STRING
&& !pinp->castCvtPackString()
@@ -1228,7 +1235,12 @@ private:
pinp = newp;
}
pinp->accept(*this,WidthVP(portp->width(),portp->widthMin(),PRELIM).p()); pinp=NULL;
} else {
} else if (accept_mode==1) {
// Change data types based on above accept completion
if (portp->isDouble()) {
spliceCvtD(pinp); pinp=NULL;
}
} else if (accept_mode==2) {
// Do PRELIM again, because above accept may have exited early due to node replacement
pinp->accept(*this,WidthVP(portp->width(),portp->widthMin(),BOTH).p());
if ((portp->isOutput() || portp->isInout())
@@ -1585,20 +1597,18 @@ private:
}
void visit_math_Or_LRr(AstNodeBiop* nodep, AstNUser* vup) {
if (vup->c()->prelim()) { // First stage evaluation
nodep->lhsp()->iterateAndNext(*this,WidthVP(ANYSIZE,0,BOTH).p());
nodep->rhsp()->iterateAndNext(*this,WidthVP(ANYSIZE,0,BOTH).p());
checkCvtD(nodep->lhsp());
checkCvtD(nodep->rhsp());
nodep->numeric(AstNumeric::DOUBLE);
// Determine expression widths only relying on what's in the subops
nodep->lhsp()->iterateAndNext(*this,WidthVP(ANYSIZE,0,BOTH).p());
nodep->rhsp()->iterateAndNext(*this,WidthVP(ANYSIZE,0,BOTH).p());
}
}
void visit_math_Or_Lr(AstNodeUniop* nodep, AstNUser* vup) {
if (vup->c()->prelim()) { // First stage evaluation
nodep->lhsp()->iterateAndNext(*this,WidthVP(ANYSIZE,0,BOTH).p());
checkCvtD(nodep->lhsp());
nodep->numeric(AstNumeric::DOUBLE);
// Determine expression widths only relying on what's in the subops
nodep->lhsp()->iterateAndNext(*this,WidthVP(ANYSIZE,0,BOTH).p());
}
}