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Continue implementing field initializers

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4879 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-12-03 06:00:33 +00:00
parent 4767a0c1b6
commit b1ed0fc630
4 changed files with 104 additions and 60 deletions
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70
support/tools/TableGen/Record.cpp
View File

@ -82,25 +82,6 @@ Init *BitsRecTy::convertValue(TypedInit *VI) {
return 0;
}
#if 0
Init *BitsRecTy::convertValue(FieldInit *VI) {
if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
if (BRT->Size == Size) {
BitsInit *Ret = new BitsInit(Size);
for (unsigned i = 0; i != Size; ++i)
Ret->setBit(i, new VarBitInit(VI, i));
return Ret;
}
if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
BitsInit *Ret = new BitsInit(1);
Ret->setBit(0, VI);
return Ret;
}
return 0;
}
#endif
Init *IntRecTy::convertValue(BitsInit *BI) {
int Result = 0;
for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
@ -168,8 +149,8 @@ Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
void BitsInit::print(std::ostream &OS) const {
//if (!printInHex(OS)) return;
if (!printAsVariable(OS)) return;
if (!printAsUnset(OS)) return;
//if (!printAsVariable(OS)) return;
//if (!printAsUnset(OS)) return;
OS << "{ ";
for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
@ -282,13 +263,6 @@ Init *VarInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
return BI;
}
RecTy *VarInit::getFieldType(const std::string &FieldName) const {
if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
return RV->getType();
return 0;
}
Init *VarInit::resolveBitReference(Record &R, unsigned Bit) {
if (R.isTemplateArg(getName()))
return this;
@ -306,16 +280,43 @@ Init *VarInit::resolveBitReference(Record &R, unsigned Bit) {
return this;
}
RecTy *VarInit::getFieldType(const std::string &FieldName) const {
if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
return RV->getType();
return 0;
}
Init *VarInit::getFieldInit(Record &R, const std::string &FieldName) const {
if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
if (const RecordVal *RV = R.getValue(VarName))
if (Init *I = RV->getValue()->getFieldInit(R, FieldName))
return I;
else
return (Init*)this;
return 0;
}
Init *VarBitInit::resolveReferences(Record &R) {
Init *I = getVariable()->resolveBitReference(R, getBitNum());
if (I != getVariable())
return I;
return this;
}
RecTy *DefInit::getFieldType(const std::string &FieldName) const {
if (const RecordVal *RV = Def->getValue(FieldName))
return RV->getType();
return 0;
}
Init *DefInit::getFieldInit(Record &R, const std::string &FieldName) const {
return Def->getValue(FieldName)->getValue();
}
void DefInit::print(std::ostream &OS) const {
OS << Def->getName();
}
@ -337,7 +338,16 @@ Init *FieldInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
}
Init *FieldInit::resolveBitReference(Record &R, unsigned Bit) {
// Can never be resolved yet.
Init *BitsVal = Rec->getFieldInit(R, FieldName);
assert(BitsVal && "No initializer found!");
if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
assert(Bit < BI->getNumBits() && "Bit reference out of range!");
Init *B = BI->getBit(Bit);
if (dynamic_cast<BitInit*>(B)) // If the bit is set...
return B; // Replace the VarBitInit with it.
}
return this;
}

12
support/tools/TableGen/Record.h
View File

@ -180,6 +180,14 @@ struct Init {
///
virtual RecTy *getFieldType(const std::string &FieldName) const { return 0; }
/// getFieldInit - This method complements getFieldType to return the
/// initializer for the specified field. If getFieldType returns non-null
/// this method should return non-null, otherwise it returns null.
///
virtual Init *getFieldInit(Record &R, const std::string &FieldName) const {
return 0;
}
/// resolveReferences - This method is used by classes that refer to other
/// variables which may not be defined at the time they expression is formed.
/// If a value is set for the variable later, this method will be called on
@ -352,6 +360,7 @@ public:
virtual Init *resolveBitReference(Record &R, unsigned Bit);
virtual RecTy *getFieldType(const std::string &FieldName) const;
virtual Init *getFieldInit(Record &R, const std::string &FieldName) const;
virtual void print(std::ostream &OS) const { OS << VarName; }
};
@ -397,6 +406,9 @@ public:
Record *getDef() const { return Def; }
//virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
virtual RecTy *getFieldType(const std::string &FieldName) const;
virtual Init *getFieldInit(Record &R, const std::string &FieldName) const;
virtual void print(std::ostream &OS) const;
};

70
utils/TableGen/Record.cpp
View File

@ -82,25 +82,6 @@ Init *BitsRecTy::convertValue(TypedInit *VI) {
return 0;
}
#if 0
Init *BitsRecTy::convertValue(FieldInit *VI) {
if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
if (BRT->Size == Size) {
BitsInit *Ret = new BitsInit(Size);
for (unsigned i = 0; i != Size; ++i)
Ret->setBit(i, new VarBitInit(VI, i));
return Ret;
}
if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
BitsInit *Ret = new BitsInit(1);
Ret->setBit(0, VI);
return Ret;
}
return 0;
}
#endif
Init *IntRecTy::convertValue(BitsInit *BI) {
int Result = 0;
for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
@ -168,8 +149,8 @@ Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
void BitsInit::print(std::ostream &OS) const {
//if (!printInHex(OS)) return;
if (!printAsVariable(OS)) return;
if (!printAsUnset(OS)) return;
//if (!printAsVariable(OS)) return;
//if (!printAsUnset(OS)) return;
OS << "{ ";
for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
@ -282,13 +263,6 @@ Init *VarInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
return BI;
}
RecTy *VarInit::getFieldType(const std::string &FieldName) const {
if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
return RV->getType();
return 0;
}
Init *VarInit::resolveBitReference(Record &R, unsigned Bit) {
if (R.isTemplateArg(getName()))
return this;
@ -306,16 +280,43 @@ Init *VarInit::resolveBitReference(Record &R, unsigned Bit) {
return this;
}
RecTy *VarInit::getFieldType(const std::string &FieldName) const {
if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
return RV->getType();
return 0;
}
Init *VarInit::getFieldInit(Record &R, const std::string &FieldName) const {
if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
if (const RecordVal *RV = R.getValue(VarName))
if (Init *I = RV->getValue()->getFieldInit(R, FieldName))
return I;
else
return (Init*)this;
return 0;
}
Init *VarBitInit::resolveReferences(Record &R) {
Init *I = getVariable()->resolveBitReference(R, getBitNum());
if (I != getVariable())
return I;
return this;
}
RecTy *DefInit::getFieldType(const std::string &FieldName) const {
if (const RecordVal *RV = Def->getValue(FieldName))
return RV->getType();
return 0;
}
Init *DefInit::getFieldInit(Record &R, const std::string &FieldName) const {
return Def->getValue(FieldName)->getValue();
}
void DefInit::print(std::ostream &OS) const {
OS << Def->getName();
}
@ -337,7 +338,16 @@ Init *FieldInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
}
Init *FieldInit::resolveBitReference(Record &R, unsigned Bit) {
// Can never be resolved yet.
Init *BitsVal = Rec->getFieldInit(R, FieldName);
assert(BitsVal && "No initializer found!");
if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
assert(Bit < BI->getNumBits() && "Bit reference out of range!");
Init *B = BI->getBit(Bit);
if (dynamic_cast<BitInit*>(B)) // If the bit is set...
return B; // Replace the VarBitInit with it.
}
return this;
}

12
utils/TableGen/Record.h
View File

@ -180,6 +180,14 @@ struct Init {
///
virtual RecTy *getFieldType(const std::string &FieldName) const { return 0; }
/// getFieldInit - This method complements getFieldType to return the
/// initializer for the specified field. If getFieldType returns non-null
/// this method should return non-null, otherwise it returns null.
///
virtual Init *getFieldInit(Record &R, const std::string &FieldName) const {
return 0;
}
/// resolveReferences - This method is used by classes that refer to other
/// variables which may not be defined at the time they expression is formed.
/// If a value is set for the variable later, this method will be called on
@ -352,6 +360,7 @@ public:
virtual Init *resolveBitReference(Record &R, unsigned Bit);
virtual RecTy *getFieldType(const std::string &FieldName) const;
virtual Init *getFieldInit(Record &R, const std::string &FieldName) const;
virtual void print(std::ostream &OS) const { OS << VarName; }
};
@ -397,6 +406,9 @@ public:
Record *getDef() const { return Def; }
//virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
virtual RecTy *getFieldType(const std::string &FieldName) const;
virtual Init *getFieldInit(Record &R, const std::string &FieldName) const;
virtual void print(std::ostream &OS) const;
};