verilator/src/V3AstNodes.cpp
2014-01-20 21:59:53 -05:00

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// -*- mode: C++; c-file-style: "cc-mode" -*-
//*************************************************************************
// DESCRIPTION: Verilator: Ast node structures
//
// Code available from: http://www.veripool.org/verilator
//
//*************************************************************************
//
// Copyright 2003-2014 by Wilson Snyder. This program is free software; you can
// redistribute it and/or modify it under the terms of either the GNU
// Lesser General Public License Version 3 or the Perl Artistic License
// Version 2.0.
//
// Verilator is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
//*************************************************************************
#include "config_build.h"
#include "verilatedos.h"
#include <cstdio>
#include <cstdarg>
#include <fstream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include "V3Ast.h"
#include "V3File.h"
#include "V3Global.h"
//======================================================================
// Special methods
// We need these here, because the classes they point to aren't defined when we declare the class
const char* AstIfaceRefDType::broken() const {
BROKEN_RTN(m_ifacep && !m_ifacep->brokeExists());
BROKEN_RTN(m_cellp && !m_cellp->brokeExists());
BROKEN_RTN(m_modportp && !m_modportp->brokeExists());
return NULL;
}
AstIface* AstIfaceRefDType::ifaceViaCellp() const {
return ((m_cellp && m_cellp->modp()) ? m_cellp->modp()->castIface() : m_ifacep);
}
const char* AstNodeVarRef::broken() const {
BROKEN_RTN(m_varScopep && !m_varScopep->brokeExists());
BROKEN_RTN(m_varp && !m_varp->brokeExists());
return NULL;
}
void AstNodeVarRef::cloneRelink() {
if (m_varp && m_varp->clonep()) { m_varp = m_varp->clonep()->castVar(); }
}
int AstNodeSel::bitConst() const {
AstConst* constp=bitp()->castConst(); return (constp?constp->toSInt():0);
}
void AstNodeClassDType::repairMemberCache() {
clearCache();
for (AstMemberDType* itemp = membersp(); itemp; itemp=itemp->nextp()->castMemberDType()) {
if (m_members.find(itemp->name())!=m_members.end()) { itemp->v3error("Duplicate declaration of member name: "<<itemp->prettyName()); }
else m_members.insert(make_pair(itemp->name(), itemp));
}
}
const char* AstNodeClassDType::broken() const {
set<AstMemberDType*> exists;
for (AstMemberDType* itemp = membersp(); itemp; itemp=itemp->nextp()->castMemberDType()) {
exists.insert(itemp);
}
for (MemberNameMap::const_iterator it=m_members.begin(); it!=m_members.end(); ++it) {
if (VL_UNLIKELY(exists.find(it->second) == exists.end())) {
this->v3error("Internal: Structure member broken: "<<it->first);
return "member broken";
}
}
return NULL;
}
int AstBasicDType::widthAlignBytes() const {
if (width()<=8) return 1;
else if (width()<=16) return 2;
else if (isQuad()) return 8;
else return 4;
}
int AstBasicDType::widthTotalBytes() const {
if (width()<=8) return 1;
else if (width()<=16) return 2;
else if (isQuad()) return 8;
else return widthWords()*(VL_WORDSIZE/8);
}
int AstNodeClassDType::widthTotalBytes() const {
if (width()<=8) return 1;
else if (width()<=16) return 2;
else if (isQuad()) return 8;
else return widthWords()*(VL_WORDSIZE/8);
}
int AstNodeClassDType::widthAlignBytes() const {
// Could do max across members but that would be slow,
// instead intuit based on total structure size
if (width()<=8) return 1;
else if (width()<=16) return 2;
else if (width()<=32) return 4;
else return 8;
}
AstNodeBiop* AstEq::newTyped(FileLine* fl, AstNode* lhsp, AstNode* rhsp) {
if (lhsp->isDouble() && rhsp->isDouble()) {
return new AstEqD(fl, lhsp, rhsp);
} else {
return new AstEq(fl, lhsp, rhsp);
}
}
AstNodeBiop* AstGte::newTyped(FileLine* fl, AstNode* lhsp, AstNode* rhsp) {
if (lhsp->isDouble() && rhsp->isDouble()) {
return new AstGteD(fl, lhsp, rhsp);
} else if (lhsp->isSigned() && rhsp->isSigned()) {
return new AstGteS(fl, lhsp, rhsp);
} else {
return new AstGte(fl, lhsp, rhsp);
}
}
AstNodeBiop* AstLte::newTyped(FileLine* fl, AstNode* lhsp, AstNode* rhsp) {
if (lhsp->isDouble() && rhsp->isDouble()) {
return new AstLteD(fl, lhsp, rhsp);
} else if (lhsp->isSigned() && rhsp->isSigned()) {
return new AstLteS(fl, lhsp, rhsp);
} else {
return new AstLte(fl, lhsp, rhsp);
}
}
bool AstVar::isSigPublic() const {
return (m_sigPublic || (v3Global.opt.allPublic() && !isTemp() && !isGenVar()));
}
bool AstVar::isScQuad() const {
return (isSc() && isQuad() && !isScBv() && !isScBigUint());
}
bool AstVar::isScBv() const {
return ((isSc() && width() >= v3Global.opt.pinsBv()) || m_attrScBv);
}
bool AstVar::isScUint() const {
return ((isSc() && v3Global.opt.pinsScUint() && width() >= 2 && width() <= 64) && !isScBv());
}
bool AstVar::isScBigUint() const {
return ((isSc() && v3Global.opt.pinsScBigUint() && width() >= 65 && width() <= 512) && !isScBv());
}
void AstVar::combineType(AstVarType type) {
// These flags get combined with the existing settings of the flags.
// We don't test varType for certain types, instead set flags since
// when we combine wires cross-hierarchy we need a union of all characteristics.
if (type == AstVarType::SUPPLY0) type = AstVarType::WIRE;
if (type == AstVarType::SUPPLY1) type = AstVarType::WIRE;
m_varType=type; // For debugging prints only
// These flags get combined with the existing settings of the flags.
if (type==AstVarType::INPUT || type==AstVarType::INOUT)
m_input = true;
if (type==AstVarType::OUTPUT || type==AstVarType::INOUT) {
m_output = true;
m_declOutput = true;
}
if (type==AstVarType::INOUT || type==AstVarType::TRIWIRE
|| type==AstVarType::TRI0 || type==AstVarType::TRI1)
m_tristate = true;
if (type==AstVarType::TRI0)
m_isPulldown = true;
if (type==AstVarType::TRI1)
m_isPullup = true;
}
string AstVar::verilogKwd() const {
if (isInout()) {
return "inout";
} else if (isInput()) {
return "input";
} else if (isOutput()) {
return "output";
} else if (isTristate()) {
return "tri";
} else if (varType()==AstVarType::WIRE) {
return "wire";
} else {
return dtypep()->name();
}
}
string AstVar::vlArgType(bool named, bool forReturn) const {
if (forReturn) named=false;
if (forReturn) v3fatalSrc("verilator internal data is never passed as return, but as first argument");
string arg;
if (isWide() && isInOnly()) arg += "const ";
AstBasicDType* bdtypep = basicp();
bool strtype = bdtypep && bdtypep->keyword()==AstBasicDTypeKwd::STRING;
if (bdtypep && bdtypep->keyword()==AstBasicDTypeKwd::CHARPTR) {
arg += "const char*";
} else if (bdtypep && bdtypep->keyword()==AstBasicDTypeKwd::SCOPEPTR) {
arg += "const VerilatedScope*";
} else if (bdtypep && bdtypep->keyword()==AstBasicDTypeKwd::DOUBLE) {
arg += "double";
} else if (bdtypep && bdtypep->keyword()==AstBasicDTypeKwd::FLOAT) {
arg += "float";
} else if (strtype) {
if (isInOnly()) arg += "const ";
arg += "string";
} else if (widthMin() <= 8) {
arg += "CData";
} else if (widthMin() <= 16) {
arg += "SData";
} else if (widthMin() <= VL_WORDSIZE) {
arg += "IData";
} else if (isQuad()) {
arg += "QData";
} else if (isWide()) {
arg += "WData"; // []'s added later
}
if (isWide() && !strtype) {
arg += " (& "+name();
arg += ")["+cvtToStr(widthWords())+"]";
} else {
if (isOutput() || (strtype && isInput())) arg += "&";
if (named) arg += " "+name();
}
return arg;
}
string AstVar::vlEnumType() const {
string arg;
AstBasicDType* bdtypep = basicp();
bool strtype = bdtypep && bdtypep->keyword()==AstBasicDTypeKwd::STRING;
if (bdtypep && bdtypep->keyword()==AstBasicDTypeKwd::CHARPTR) {
return "VLVT_PTR";
} else if (bdtypep && bdtypep->keyword()==AstBasicDTypeKwd::SCOPEPTR) {
return "VLVT_PTR";
} else if (strtype) {
arg += "VLVT_STRING";
} else if (widthMin() <= 8) {
arg += "VLVT_UINT8";
} else if (widthMin() <= 16) {
arg += "VLVT_UINT16";
} else if (widthMin() <= VL_WORDSIZE) {
arg += "VLVT_UINT32";
} else if (isQuad()) {
arg += "VLVT_UINT64";
} else if (isWide()) {
arg += "VLVT_WDATA";
}
// else return "VLVT_UNKNOWN"
return arg;
}
string AstVar::vlEnumDir() const {
if (isInout()) {
return "VLVD_INOUT";
} else if (isInOnly()) {
return "VLVD_IN";
} else if (isOutOnly()) {
return "VLVD_OUT";
} else {
return "VLVD_NODIR";
}
}
string AstVar::cPubArgType(bool named, bool forReturn) const {
if (forReturn) named=false;
string arg;
if (isWide() && isInOnly()) arg += "const ";
if (widthMin() == 1) {
arg += "bool";
} else if (widthMin() <= VL_WORDSIZE) {
arg += "uint32_t";
} else if (isWide()) {
arg += "uint32_t"; // []'s added later
} else {
arg += "vluint64_t";
}
if (isWide()) {
if (forReturn) v3error("Unsupported: Public functions with >64 bit outputs; make an output of a public task instead");
arg += " (& "+name();
arg += ")["+cvtToStr(widthWords())+"]";
} else {
if (isOutput() && !forReturn) arg += "&";
if (named) arg += " "+name();
}
return arg;
}
string AstVar::dpiArgType(bool named, bool forReturn) const {
if (forReturn) named=false;
string arg;
if (!basicp()) arg = "UNKNOWN";
if (basicp()->isBitLogic()) {
if (widthMin() == 1) {
arg = "unsigned char";
if (!forReturn && isOutput()) arg += "*";
} else {
if (forReturn) {
arg = "svBitVecVal";
} else if (isInOnly()) {
arg = "const svBitVecVal*";
} else {
arg = "svBitVecVal*";
}
}
} else {
arg = basicp()->keyword().dpiType();
if (basicp()->keyword().isDpiUnsignable() && !basicp()->isSigned()) {
arg = "unsigned "+arg;
}
if (!forReturn && isOutput()) arg += "*";
}
if (named) arg += " "+name();
return arg;
}
string AstVar::scType() const {
if (isScBigUint()) {
return (string("sc_biguint<")+cvtToStr(widthMin())+"> "); // Keep the space so don't get >>
} else if (isScUint()) {
return (string("sc_uint<")+cvtToStr(widthMin())+"> "); // Keep the space so don't get >>
} else if (isScBv()) {
return (string("sc_bv<")+cvtToStr(widthMin())+"> "); // Keep the space so don't get >>
} else if (widthMin() == 1) {
return "bool";
} else if (widthMin() <= VL_WORDSIZE) {
if (widthMin() <= 8 && v3Global.opt.pinsUint8()) {
return "uint8_t";
} else if (widthMin() <= 16 && v3Global.opt.pinsUint8()) {
return "uint16_t";
} else {
return "uint32_t";
}
} else {
return "vluint64_t";
}
}
AstNodeDType* AstNodeDType::dtypeDimensionp(int dimension) {
// dimension passed from AstArraySel::dimension
// Dimension 0 means the VAR itself, 1 is the closest SEL to the AstVar,
// which is the lowest in the dtype list.
// ref order: a[1][2][3][4]
// Created as: reg [4] a [1][2][3];
// *or* reg a [1][2][3][4];
// // The bit select is optional; used only if "leftover" []'s
// SEL: SEL4(SEL3(SEL2(SEL1(VARREF0 a))))
// DECL: VAR a (ARRAYSEL0 (ARRAYSEL1 (ARRAYSEL2 (DT RANGE3))))
// *or* VAR a (ARRAYSEL0 (ARRAYSEL1 (ARRAYSEL2 (ARRAYSEL3 (DT))))
// SEL1 needs to select from entire variable which is a pointer to ARRAYSEL0
// TODO this function should be removed in favor of recursing the dtype(),
// as that allows for more complicated data types.
int dim = 0;
for (AstNodeDType* dtypep=this; dtypep; ) {
dtypep = dtypep->skipRefp(); // Skip AstRefDType/AstTypedef, or return same node
if (AstNodeArrayDType* adtypep = dtypep->castNodeArrayDType()) {
if ((dim++)==dimension) {
return dtypep;
}
dtypep = adtypep->subDTypep();
continue;
}
else if (AstBasicDType* adtypep = dtypep->castBasicDType()) {
// AstBasicDType - nothing below, return null
if (adtypep->isRanged()) {
if ((dim++) == dimension) {
return adtypep;
}
}
return NULL;
}
else if (AstNodeClassDType* adtypep = dtypep->castNodeClassDType()) {
if (adtypep->packed()) {
if ((dim++) == dimension) {
return adtypep;
}
}
return NULL;
}
// Node no ->next in loop; use continue where necessary
break;
}
return NULL;
}
uint32_t AstNodeDType::arrayUnpackedElements() {
uint32_t entries=1;
for (AstNodeDType* dtypep=this; dtypep; ) {
dtypep = dtypep->skipRefp(); // Skip AstRefDType/AstTypedef, or return same node
if (AstUnpackArrayDType* adtypep = dtypep->castUnpackArrayDType()) {
entries *= adtypep->elementsConst();
dtypep = adtypep->subDTypep();
}
else {
// AstBasicDType - nothing below, 1
break;
}
}
return entries;
}
pair<uint32_t,uint32_t> AstNodeDType::dimensions(bool includeBasic) {
// How many array dimensions (packed,unpacked) does this Var have?
uint32_t packed = 0;
uint32_t unpacked = 0;
for (AstNodeDType* dtypep=this; dtypep; ) {
dtypep = dtypep->skipRefp(); // Skip AstRefDType/AstTypedef, or return same node
if (AstNodeArrayDType* adtypep = dtypep->castNodeArrayDType()) {
if (adtypep->castPackArrayDType()) packed++;
else unpacked++;
dtypep = adtypep->subDTypep();
continue;
}
else if (AstBasicDType* adtypep = dtypep->castBasicDType()) {
if (includeBasic && adtypep->isRanged()) packed++;
}
break;
}
return make_pair(packed, unpacked);
}
int AstNodeDType::widthPow2() const {
// I.e. width 30 returns 32, width 32 returns 32.
uint32_t width = this->width();
for (int p2=30; p2>=0; p2--) {
if (width > (1UL<<p2)) return (1UL<<(p2+1));
}
return 1;
}
AstNode* AstArraySel::baseFromp(AstNode* nodep) { ///< What is the base variable (or const) this dereferences?
// Else AstArraySel etc; search for the base
while (nodep) {
if (nodep->castArraySel()) { nodep=nodep->castArraySel()->fromp(); continue; }
else if (nodep->castSel()) { nodep=nodep->castSel()->fromp(); continue; }
// AstNodeSelPre stashes the associated variable under an ATTROF of AstAttrType::VAR_BASE/MEMBER_BASE so it isn't constified
else if (nodep->castAttrOf()) { nodep=nodep->castAttrOf()->fromp(); continue; }
else if (nodep->castNodePreSel()) {
if (nodep->castNodePreSel()->attrp()) {
nodep=nodep->castNodePreSel()->attrp();
} else {
nodep=nodep->castNodePreSel()->lhsp();
}
continue;
}
else break;
}
return nodep;
}
const char* AstScope::broken() const {
BROKEN_RTN(m_aboveScopep && !m_aboveScopep->brokeExists());
BROKEN_RTN(m_aboveCellp && !m_aboveCellp->brokeExists());
BROKEN_RTN(!m_modp);
BROKEN_RTN(m_modp && !m_modp->brokeExists());
return NULL;
}
void AstScope::cloneRelink() {
if (m_aboveScopep && m_aboveScopep->clonep()) m_aboveScopep->clonep()->castScope();
if (m_aboveCellp && m_aboveCellp->clonep()) m_aboveCellp->clonep()->castCell();
if (m_modp && ((AstNode*)m_modp)->clonep()) ((AstNode*)m_modp)->clonep()->castNodeModule();
}
string AstScope::nameDotless() const {
string out = shortName();
string::size_type pos;
while ((pos=out.find(".")) != string::npos) {
out.replace(pos, 1, "__");
}
return out;
}
string AstScopeName::scopePrettyName() const {
string out;
for (AstText* textp=scopeAttrp(); textp; textp=textp->nextp()->castText()) {
out += textp->text();
}
// TOP will be replaced by top->name()
if (out.substr(0,10) == "__DOT__TOP") out.replace(0,10,"");
if (out.substr(0,7) == "__DOT__") out.replace(0,7,"");
if (out.substr(0,1) == ".") out.replace(0,1,"");
return AstNode::prettyName(out);
}
string AstScopeName::scopeSymName() const {
string out;
for (AstText* textp=scopeAttrp(); textp; textp=textp->nextp()->castText()) {
out += textp->text();
}
if (out.substr(0,10) == "__DOT__TOP") out.replace(0,10,"");
if (out.substr(0,7) == "__DOT__") out.replace(0,7,"");
if (out.substr(0,1) == ".") out.replace(0,1,"");
string::size_type pos;
while ((pos=out.find(".")) != string::npos) {
out.replace(pos, 1, "__");
}
while ((pos=out.find("__DOT__")) != string::npos) {
out.replace(pos, 7, "__");
}
return out;
}
bool AstSenTree::hasClocked() {
if (!sensesp()) this->v3fatalSrc("SENTREE without any SENITEMs under it");
for (AstNodeSenItem* senp = sensesp(); senp; senp=senp->nextp()->castNodeSenItem()) {
if (senp->isClocked()) return true;
}
return false;
}
bool AstSenTree::hasSettle() {
if (!sensesp()) this->v3fatalSrc("SENTREE without any SENITEMs under it");
for (AstNodeSenItem* senp = sensesp(); senp; senp=senp->nextp()->castNodeSenItem()) {
if (senp->isSettle()) return true;
}
return false;
}
bool AstSenTree::hasInitial() {
if (!sensesp()) this->v3fatalSrc("SENTREE without any SENITEMs under it");
for (AstNodeSenItem* senp = sensesp(); senp; senp=senp->nextp()->castNodeSenItem()) {
if (senp->isInitial()) return true;
}
return false;
}
bool AstSenTree::hasCombo() {
if (!sensesp()) this->v3fatalSrc("SENTREE without any SENITEMs under it");
for (AstNodeSenItem* senp = sensesp(); senp; senp=senp->nextp()->castNodeSenItem()) {
if (senp->isCombo()) return true;
}
return false;
}
void AstTypeTable::clearCache() {
// When we mass-change widthMin in V3WidthCommit, we need to correct the table.
// Just clear out the maps; the search functions will be used to rebuild the map
for (int i=0; i<(int)(AstBasicDTypeKwd::_ENUM_MAX); ++i) {
m_basicps[i] = NULL;
}
for (int isbit=0; isbit<_IDX0_MAX; ++isbit) {
for (int numer=0; numer<AstNumeric::_ENUM_MAX; ++numer) {
LogicMap& mapr = m_logicMap[isbit][numer];
mapr.clear();
}
}
m_detailedMap.clear();
// Clear generic()'s so dead detection will work
for (AstNode* nodep = typesp(); nodep; nodep=nodep->nextp()) {
if (AstBasicDType* bdtypep = nodep->castBasicDType()) {
bdtypep->generic(false);
}
}
}
void AstTypeTable::repairCache() {
// After we mass-change widthMin in V3WidthCommit, we need to correct the table.
clearCache();
for (AstNode* nodep = typesp(); nodep; nodep=nodep->nextp()) {
if (AstBasicDType* bdtypep = nodep->castBasicDType()) {
(void)findInsertSameDType(bdtypep);
}
}
}
AstBasicDType* AstTypeTable::findBasicDType(FileLine* fl, AstBasicDTypeKwd kwd) {
if (m_basicps[kwd]) return m_basicps[kwd];
//
AstBasicDType* new1p = new AstBasicDType(fl, kwd);
// Because the detailed map doesn't update this map,
// check the detailed map for this same node
// Also adds this new node to the detailed map
AstBasicDType* newp = findInsertSameDType(new1p);
if (newp != new1p) new1p->deleteTree();
else addTypesp(newp);
//
m_basicps[kwd] = newp;
return newp;
}
AstBasicDType* AstTypeTable::findLogicBitDType(FileLine* fl, AstBasicDTypeKwd kwd,
int width, int widthMin, AstNumeric numeric) {
int idx = IDX0_LOGIC;
if (kwd == AstBasicDTypeKwd::LOGIC) idx = IDX0_LOGIC;
else if (kwd == AstBasicDTypeKwd::BIT) idx = IDX0_BIT;
else fl->v3fatalSrc("Bad kwd for findLogicBitDType");
pair<int,int> widths = make_pair(width,widthMin);
LogicMap& mapr = m_logicMap[idx][(int)numeric];
LogicMap::const_iterator it = mapr.find(widths);
if (it != mapr.end()) return it->second;
//
AstBasicDType* new1p = new AstBasicDType(fl, kwd, numeric, width, widthMin);
// Because the detailed map doesn't update this map,
// check the detailed map for this same node, and if found update this map
// Also adds this new node to the detailed map
AstBasicDType* newp = findInsertSameDType(new1p);
if (newp != new1p) new1p->deleteTree();
else addTypesp(newp);
//
mapr.insert(make_pair(widths,newp));
return newp;
}
AstBasicDType* AstTypeTable::findLogicBitDType(FileLine* fl, AstBasicDTypeKwd kwd,
VNumRange range, int widthMin, AstNumeric numeric) {
AstBasicDType* new1p = new AstBasicDType(fl, kwd, numeric, range, widthMin);
AstBasicDType* newp = findInsertSameDType(new1p);
if (newp != new1p) new1p->deleteTree();
else addTypesp(newp);
return newp;
}
AstBasicDType* AstTypeTable::findInsertSameDType(AstBasicDType* nodep) {
VBasicTypeKey key (nodep->width(), nodep->widthMin(), nodep->numeric(),
nodep->keyword(), nodep->nrange());
DetailedMap& mapr = m_detailedMap;
DetailedMap::const_iterator it = mapr.find(key);
if (it != mapr.end()) return it->second;
mapr.insert(make_pair(key,nodep));
nodep->generic(true);
// No addTypesp; the upper function that called new() is responsible for adding
return nodep;
}
//======================================================================
// Special walking tree inserters
void AstNode::addBeforeStmt(AstNode* newp, AstNode*) {
if (!backp()) newp->v3fatalSrc("Can't find current statement to addBeforeStmt");
// Look up; virtual call will find where to put it
this->backp()->addBeforeStmt(newp, this);
}
void AstNode::addNextStmt(AstNode* newp, AstNode*) {
if (!backp()) newp->v3fatalSrc("Can't find current statement to addBeforeStmt");
// Look up; virtual call will find where to put it
this->backp()->addNextStmt(newp, this);
}
void AstNodeStmt::addBeforeStmt(AstNode* newp, AstNode*) {
// Insert newp before current node
this->addHereThisAsNext(newp);
}
void AstNodeStmt::addNextStmt(AstNode* newp, AstNode*) {
// Insert newp after current node
this->addNextHere(newp);
}
void AstWhile::addBeforeStmt(AstNode* newp, AstNode* belowp) {
// Special, as statements need to be put in different places
// Belowp is how we came to recurse up to this point
// Preconditions insert first just before themselves (the normal rule for other statement types)
if (belowp == precondsp()) {
// Must have been first statement in precondsp list, so newp is new first statement
belowp->addHereThisAsNext(newp);
} else if (belowp == condp()) {
// Goes before condition, IE in preconditions
addPrecondsp(newp);
} else if (belowp == bodysp()) {
// Was first statement in body, so new front
belowp->addHereThisAsNext(newp);
} else {
belowp->v3fatalSrc("Doesn't look like this was really under the while");
}
}
void AstWhile::addNextStmt(AstNode* newp, AstNode* belowp) {
// Special, as statements need to be put in different places
// Belowp is how we came to recurse up to this point
// Preconditions insert first just before themselves (the normal rule for other statement types)
if (belowp == precondsp()) {
// Next in precond list
belowp->addNextHere(newp);
} else if (belowp == condp()) {
// Becomes first statement in body, body may have been empty
if (bodysp()) {
bodysp()->addHereThisAsNext(newp);
} else {
addBodysp(newp);
}
} else if (belowp == bodysp()) {
// Next statement in body
belowp->addNextHere(newp);
} else {
belowp->v3fatalSrc("Doesn't look like this was really under the while");
}
}
//======================================================================
// Per-type Debugging
void AstNode::dump(ostream& str) {
str<<typeName()<<" "<<(void*)this
//<<" "<<(void*)this->m_backp
<<" <e"<<dec<<editCount()
<<((editCount()>=editCountLast())?"#>":">")
<<" {"<<fileline()->filenameLetters()<<dec<<fileline()->lineno()<<"}";
if (user1p()) str<<" u1="<<(void*)user1p();
if (user2p()) str<<" u2="<<(void*)user2p();
if (user3p()) str<<" u3="<<(void*)user3p();
if (user4p()) str<<" u4="<<(void*)user4p();
if (user5p()) str<<" u5="<<(void*)user5p();
if (hasDType()) {
if (dtypep()==this) str<<" @dt="<<"this@";
else str<<" @dt="<<(void*)dtypep()<<"@"; // Final @ so less likely to by accident think it's nodep
if (AstNodeDType* dtp = dtypep()) {
dtp->dumpSmall(str);
}
} else { // V3Broken will throw an error
if (dtypep()) str<<" %Error-dtype-exp=null,got="<<(void*)dtypep();
}
if (name()!="") str<<" "<<AstNode::quoteName(name());
}
void AstAlways::dump(ostream& str) {
this->AstNode::dump(str);
if (keyword() != VAlwaysKwd::ALWAYS) str<<" ["<<keyword().ascii()<<"]";
}
void AstArraySel::dump(ostream& str) {
this->AstNode::dump(str);
str<<" [start:"<<start()<<"] [length:"<<length()<<"]";
}
void AstAttrOf::dump(ostream& str) {
this->AstNode::dump(str);
str<<" ["<<attrType().ascii()<<"]";
}
void AstBasicDType::dump(ostream& str) {
this->AstNodeDType::dump(str);
str<<" kwd="<<keyword().ascii();
if (isRanged() && !rangep()) str<<" range=["<<left()<<":"<<right()<<"]";
}
void AstCCast::dump(ostream& str) {
this->AstNode::dump(str);
str<<" sz"<<size();
}
void AstCell::dump(ostream& str) {
this->AstNode::dump(str);
if (modp()) { str<<" -> "; modp()->dump(str); }
else { str<<" ->UNLINKED:"<<modName(); }
}
void AstCellInline::dump(ostream& str) {
this->AstNode::dump(str);
str<<" -> "<<origModName();
}
void AstDisplay::dump(ostream& str) {
this->AstNode::dump(str);
//str<<" "<<displayType().ascii();
}
void AstEnumItemRef::dump(ostream& str) {
this->AstNode::dump(str);
str<<" -> ";
if (itemp()) { itemp()->dump(str); }
else { str<<"UNLINKED"; }
}
void AstIfaceRefDType::dump(ostream& str) {
this->AstNode::dump(str);
if (cellName()!="") { str<<" cell="<<cellName(); }
if (ifaceName()!="") { str<<" if="<<ifaceName(); }
if (modportName()!="") { str<<" mp="<<modportName(); }
if (cellp()) { str<<" -> "; cellp()->dump(str); }
else if (ifacep()) { str<<" -> "; ifacep()->dump(str); }
else { str<<" -> UNLINKED"; }
}
void AstIfaceRefDType::dumpSmall(ostream& str) {
this->AstNodeDType::dumpSmall(str);
str<<"iface";
}
void AstJumpGo::dump(ostream& str) {
this->AstNode::dump(str);
str<<" -> ";
if (labelp()) { labelp()->dump(str); }
else { str<<"%Error:UNLINKED"; }
}
void AstModportFTaskRef::dump(ostream& str) {
this->AstNode::dump(str);
if (isExport()) str<<" EXPORT";
if (isImport()) str<<" IMPORT";
if (ftaskp()) { str<<" -> "; ftaskp()->dump(str); }
else { str<<" -> UNLINKED"; }
}
void AstModportVarRef::dump(ostream& str) {
this->AstNode::dump(str);
str<<" "<<varType();
if (varp()) { str<<" -> "; varp()->dump(str); }
else { str<<" -> UNLINKED"; }
}
void AstPin::dump(ostream& str) {
this->AstNode::dump(str);
if (modVarp()) { str<<" -> "; modVarp()->dump(str); }
else { str<<" ->UNLINKED"; }
if (svImplicit()) str<<" [.SV]";
}
void AstRange::dump(ostream& str) {
this->AstNode::dump(str);
if (littleEndian()) str<<" [LITTLE]";
}
void AstRefDType::dump(ostream& str) {
this->AstNodeDType::dump(str);
if (defp()) { str<<" -> "; defp()->dump(str); }
else { str<<" -> UNLINKED"; }
}
void AstNodeClassDType::dump(ostream& str) {
this->AstNode::dump(str);
if (packed()) str<<" [PACKED]";
}
void AstNodeDType::dump(ostream& str) {
this->AstNode::dump(str);
if (generic()) str<<" [GENERIC]";
if (AstNodeDType* dtp = virtRefDTypep()) {
str<<" refdt="<<(void*)(dtp);
dtp->dumpSmall(str);
}
}
void AstNodeDType::dumpSmall(ostream& str) {
str<<"("
<<(generic()?"G/":"")
<<((isSigned()&&!isDouble())?"s":"")
<<(isNosign()?"n":"")
<<(isDouble()?"d":"")
<<"w"<<(widthSized()?"":"u")<<width();
if (!widthSized()) str<<"/"<<widthMin();
str<<")";
}
void AstNodeArrayDType::dumpSmall(ostream& str) {
this->AstNodeDType::dumpSmall(str);
if (castPackArrayDType()) str<<"p"; else str<<"u";
str<<"["<<declRange().left()<<":"<<declRange().right()<<"]";
}
void AstNodeArrayDType::dump(ostream& str) {
this->AstNodeDType::dump(str);
str<<" ["<<declRange().left()<<":"<<declRange().right()<<"]";
}
void AstNodeModule::dump(ostream& str) {
this->AstNode::dump(str);
str<<" L"<<level();
if (modPublic()) str<<" [P]";
if (inLibrary()) str<<" [LIB]";
if (dead()) str<<" [DEAD]";
}
void AstPackageImport::dump(ostream& str) {
this->AstNode::dump(str);
str<<" -> "<<packagep();
}
void AstSel::dump(ostream& str) {
this->AstNode::dump(str);
if (declRange().ranged()) {
str<<" decl["<<declRange().left()<<":"<<declRange().right()<<"]";
if (declElWidth()!=1) str<<"/"<<declElWidth();
}
}
void AstTypeTable::dump(ostream& str) {
this->AstNode::dump(str);
for (int i=0; i<(int)(AstBasicDTypeKwd::_ENUM_MAX); ++i) {
if (AstBasicDType* subnodep=m_basicps[i]) {
str<<endl; // Newline from caller, so newline first
str<<"\t\t"<<setw(8)<<AstBasicDTypeKwd(i).ascii();
str<<" -> ";
subnodep->dump(str);
}
}
for (int isbit=0; isbit<2; ++isbit) {
for (int issigned=0; issigned<AstNumeric::_ENUM_MAX; ++issigned) {
LogicMap& mapr = m_logicMap[isbit][issigned];
for (LogicMap::const_iterator it = mapr.begin(); it != mapr.end(); ++it) {
AstBasicDType* dtypep = it->second;
str<<endl; // Newline from caller, so newline first
stringstream nsstr;
nsstr<<(isbit?"bw":"lw")
<<it->first.first<<"/"<<it->first.second;
str<<"\t\t"<<setw(8)<<nsstr.str();
if (issigned) str<<" s"; else str<<" u";
str<<" -> ";
dtypep->dump(str);
}
}
}
{
DetailedMap& mapr = m_detailedMap;
for (DetailedMap::const_iterator it = mapr.begin(); it != mapr.end(); ++it) {
AstBasicDType* dtypep = it->second;
str<<endl; // Newline from caller, so newline first
stringstream nsstr;
str<<"\t\tdetailed -> ";
dtypep->dump(str);
}
}
// Note get newline from caller too.
}
void AstVarScope::dump(ostream& str) {
this->AstNode::dump(str);
if (isCircular()) str<<" [CIRC]";
if (varp()) { str<<" -> "; varp()->dump(str); }
else { str<<" ->UNLINKED"; }
}
void AstVarXRef::dump(ostream& str) {
this->AstNode::dump(str);
if (packagep()) { str<<" pkg="<<(void*)packagep(); }
if (lvalue()) str<<" [LV] => ";
else str<<" [RV] <- ";
str<<dotted()<<". - ";
if (inlinedDots()!="") str<<" inline.="<<inlinedDots()<<" - ";
if (varScopep()) { varScopep()->dump(str); }
else if (varp()) { varp()->dump(str); }
else { str<<"UNLINKED"; }
}
void AstVarRef::dump(ostream& str) {
this->AstNode::dump(str);
if (packagep()) { str<<" pkg="<<(void*)packagep(); }
if (lvalue()) str<<" [LV] => ";
else str<<" [RV] <- ";
if (varScopep()) { varScopep()->dump(str); }
else if (varp()) { varp()->dump(str); }
else { str<<"UNLINKED"; }
}
void AstVar::dump(ostream& str) {
this->AstNode::dump(str);
if (isSc()) str<<" [SC]";
if (isPrimaryIO()) str<<(isInout()?" [PIO]":(isInput()?" [PI]":" [PO]"));
else {
if (isInout()) str<<" [IO]";
else if (isInput()) str<<" [I]";
else if (isOutput()) str<<" [O]";
}
if (isConst()) str<<" [CONST]";
if (isPullup()) str<<" [PULLUP]";
if (isPulldown()) str<<" [PULLDOWN]";
if (isUsedClock()) str<<" [CLK]";
if (isSigPublic()) str<<" [P]";
if (isUsedLoopIdx()) str<<" [LOOP]";
if (attrClockEn()) str<<" [aCLKEN]";
if (attrIsolateAssign()) str<<" [aISO]";
if (attrFileDescr()) str<<" [aFD]";
if (isFuncReturn()) str<<" [FUNCRTN]";
else if (isFuncLocal()) str<<" [FUNC]";
str<<" "<<varType();
}
void AstSenTree::dump(ostream& str) {
this->AstNode::dump(str);
if (isMulti()) str<<" [MULTI]";
}
void AstSenItem::dump(ostream& str) {
this->AstNode::dump(str);
str<<" ["<<edgeType().ascii()<<"]";
}
void AstParseRef::dump(ostream& str) {
this->AstNode::dump(str);
str<<" ["<<expect().ascii()<<"]";
}
void AstPackageRef::dump(ostream& str) {
this->AstNode::dump(str);
if (packagep()) { str<<" pkg="<<(void*)packagep(); }
str<<" -> ";
if (packagep()) { packagep()->dump(str); }
else { str<<"UNLINKED"; }
}
void AstDot::dump(ostream& str) {
this->AstNode::dump(str);
}
void AstActive::dump(ostream& str) {
this->AstNode::dump(str);
str<<" => ";
if (sensesp()) { sensesp()->dump(str); }
else { str<<"UNLINKED"; }
}
void AstNodeFTaskRef::dump(ostream& str) {
this->AstNode::dump(str);
if (packagep()) { str<<" pkg="<<(void*)packagep(); }
str<<" -> ";
if (dotted()!="") { str<<dotted()<<". - "; }
if (taskp()) { taskp()->dump(str); }
else { str<<"UNLINKED"; }
}
void AstNodeFTask::dump(ostream& str) {
this->AstNode::dump(str);
if (taskPublic()) str<<" [PUBLIC]";
if (prototype()) str<<" [PROTOTYPE]";
if (dpiImport()) str<<" [DPII]";
if (dpiExport()) str<<" [DPIX]";
if ((dpiImport() || dpiExport()) && cname()!=name()) str<<" [c="<<cname()<<"]";
}
void AstBegin::dump(ostream& str) {
this->AstNode::dump(str);
if (unnamed()) str<<" [UNNAMED]";
if (generate()) str<<" [GEN]";
if (genforp()) str<<" [GENFOR]";
}
void AstCoverDecl::dump(ostream& str) {
this->AstNode::dump(str);
if (this->dataDeclNullp()) {
str<<" -> ";
this->dataDeclNullp()->dump(str);
} else {
if (binNum()) { str<<" bin"<<dec<<binNum(); }
}
}
void AstCoverInc::dump(ostream& str) {
this->AstNode::dump(str);
str<<" -> ";
if (declp()) { declp()->dump(str); }
else { str<<"%Error:UNLINKED"; }
}
void AstTraceInc::dump(ostream& str) {
this->AstNode::dump(str);
str<<" -> ";
if (declp()) { declp()->dump(str); }
else { str<<"%Error:UNLINKED"; }
}
void AstNodeText::dump(ostream& str) {
this->AstNode::dump(str);
string out = text();
string::size_type pos;
if ((pos = out.find("\n")) != string::npos) {
out.erase(pos,out.length()-pos);
out += "...";
}
str<<" \""<<out<<"\"";
}
void AstCFile::dump(ostream& str) {
this->AstNode::dump(str);
if (source()) str<<" [SRC]";
if (slow()) str<<" [SLOW]";
}
void AstCCall::dump(ostream& str) {
this->AstNode::dump(str);
if (funcp()) {
str<<" "<<funcp()->name()<<" => ";
funcp()->dump(str);
}
}
void AstCFunc::dump(ostream& str) {
this->AstNode::dump(str);
if (slow()) str<<" [SLOW]";
if (pure()) str<<" [PURE]";
if (dpiImport()) str<<" [DPII]";
if (dpiExport()) str<<" [DPIX]";
if (dpiExportWrapper()) str<<" [DPIXWR]";
}