//===- Record.h - Classes to represent Table Records ------------*- C++ -*-===//
//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the main TableGen data structures, including the TableGen
+// types, values, and high-level data structures.
//
//===----------------------------------------------------------------------===//
#include <vector>
#include <map>
#include <iostream>
-class Init;
+#include <cassert>
+
+namespace llvm {
+
+// RecTy subclasses.
+class BitRecTy;
+class BitsRecTy;
+class IntRecTy;
+class StringRecTy;
+class ListRecTy;
+class CodeRecTy;
+class DagRecTy;
+class RecordRecTy;
+
+// Init subclasses.
+struct Init;
class UnsetInit;
class BitInit;
class BitsInit;
class IntInit;
class StringInit;
+class CodeInit;
class ListInit;
-class VarInit;
-class VarBitInit;
class DefInit;
+class DagInit;
+class TypedInit;
+class VarInit;
class FieldInit;
+class VarBitInit;
+class VarListElementInit;
+
+// Other classes.
class Record;
+class RecordVal;
//===----------------------------------------------------------------------===//
// Type Classes
struct RecTy {
virtual ~RecTy() {}
+ virtual void print(std::ostream &OS) const = 0;
+ void dump() const;
+
+ /// typeIsConvertibleTo - Return true if all values of 'this' type can be
+ /// converted to the specified type.
+ virtual bool typeIsConvertibleTo(const RecTy *RHS) const = 0;
+
+public: // These methods should only be called from subclasses of Init
virtual Init *convertValue( UnsetInit *UI) { return 0; }
virtual Init *convertValue( BitInit *BI) { return 0; }
virtual Init *convertValue( BitsInit *BI) { return 0; }
virtual Init *convertValue( IntInit *II) { return 0; }
virtual Init *convertValue(StringInit *SI) { return 0; }
virtual Init *convertValue( ListInit *LI) { return 0; }
- virtual Init *convertValue( VarInit *VI) { return 0; }
+ virtual Init *convertValue( CodeInit *CI) { return 0; }
virtual Init *convertValue(VarBitInit *VB) { return 0; }
virtual Init *convertValue( DefInit *DI) { return 0; }
- virtual Init *convertValue( FieldInit *FI) { return 0; }
+ virtual Init *convertValue( DagInit *DI) { return 0; }
+ virtual Init *convertValue( TypedInit *TI) { return 0; }
+ virtual Init *convertValue( VarInit *VI) {
+ return convertValue((TypedInit*)VI);
+ }
+ virtual Init *convertValue( FieldInit *FI) {
+ return convertValue((TypedInit*)FI);
+ }
- virtual void print(std::ostream &OS) const = 0;
- void dump() const;
+public: // These methods should only be called by subclasses of RecTy.
+ // baseClassOf - These virtual methods should be overloaded to return true iff
+ // all values of type 'RHS' can be converted to the 'this' type.
+ virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
};
inline std::ostream &operator<<(std::ostream &OS, const RecTy &Ty) {
/// BitRecTy - 'bit' - Represent a single bit
///
-struct BitRecTy : public RecTy {
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue(BitInit *BI) { return (Init*)BI; }
- Init *convertValue(BitsInit *BI);
- Init *convertValue(IntInit *II);
- Init *convertValue(VarInit *VI);
+class BitRecTy : public RecTy {
+public:
+ virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
+ virtual Init *convertValue( BitInit *BI) { return (Init*)BI; }
+ virtual Init *convertValue( BitsInit *BI);
+ virtual Init *convertValue( IntInit *II);
+ virtual Init *convertValue(StringInit *SI) { return 0; }
+ virtual Init *convertValue( ListInit *LI) { return 0; }
+ virtual Init *convertValue( CodeInit *CI) { return 0; }
+ virtual Init *convertValue(VarBitInit *VB) { return (Init*)VB; }
+ virtual Init *convertValue( DefInit *DI) { return 0; }
+ virtual Init *convertValue( DagInit *DI) { return 0; }
+ virtual Init *convertValue( TypedInit *TI);
+ virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
+ virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
void print(std::ostream &OS) const { OS << "bit"; }
+
+ bool typeIsConvertibleTo(const RecTy *RHS) const {
+ return RHS->baseClassOf(this);
+ }
+ virtual bool baseClassOf(const BitRecTy *RHS) const { return true; }
+ virtual bool baseClassOf(const BitsRecTy *RHS) const;
+ virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
+ virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
+
};
-/// BitsRecTy - 'bits<n>' - Represent a fixed number of bits
+// BitsRecTy - 'bits<n>' - Represent a fixed number of bits
+/// BitsRecTy - 'bits<n>' - Represent a fixed number of bits
///
class BitsRecTy : public RecTy {
unsigned Size;
unsigned getNumBits() const { return Size; }
- Init *convertValue(UnsetInit *UI);
- Init *convertValue(BitInit *UI);
- Init *convertValue(BitsInit *BI);
- Init *convertValue(IntInit *II);
- Init *convertValue(VarInit *VI);
+ virtual Init *convertValue( UnsetInit *UI);
+ virtual Init *convertValue( BitInit *UI);
+ virtual Init *convertValue( BitsInit *BI);
+ virtual Init *convertValue( IntInit *II);
+ virtual Init *convertValue(StringInit *SI) { return 0; }
+ virtual Init *convertValue( ListInit *LI) { return 0; }
+ virtual Init *convertValue( CodeInit *CI) { return 0; }
+ virtual Init *convertValue(VarBitInit *VB) { return 0; }
+ virtual Init *convertValue( DefInit *DI) { return 0; }
+ virtual Init *convertValue( DagInit *DI) { return 0; }
+ virtual Init *convertValue( TypedInit *TI);
+ virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
+ virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
+
void print(std::ostream &OS) const { OS << "bits<" << Size << ">"; }
+
+ bool typeIsConvertibleTo(const RecTy *RHS) const {
+ return RHS->baseClassOf(this);
+ }
+ virtual bool baseClassOf(const BitRecTy *RHS) const { return Size == 1; }
+ virtual bool baseClassOf(const BitsRecTy *RHS) const {
+ return RHS->Size == Size;
+ }
+ virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
+ virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
+
};
/// IntRecTy - 'int' - Represent an integer value of no particular size
///
-struct IntRecTy : public RecTy {
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue(IntInit *II) { return (Init*)II; }
- Init *convertValue(BitsInit *BI);
- Init *convertValue(VarInit *VI);
+class IntRecTy : public RecTy {
+public:
+ virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
+ virtual Init *convertValue( BitInit *BI);
+ virtual Init *convertValue( BitsInit *BI);
+ virtual Init *convertValue( IntInit *II) { return (Init*)II; }
+ virtual Init *convertValue(StringInit *SI) { return 0; }
+ virtual Init *convertValue( ListInit *LI) { return 0; }
+ virtual Init *convertValue( CodeInit *CI) { return 0; }
+ virtual Init *convertValue(VarBitInit *VB) { return 0; }
+ virtual Init *convertValue( DefInit *DI) { return 0; }
+ virtual Init *convertValue( DagInit *DI) { return 0; }
+ virtual Init *convertValue( TypedInit *TI);
+ virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
+ virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
+
void print(std::ostream &OS) const { OS << "int"; }
+
+ bool typeIsConvertibleTo(const RecTy *RHS) const {
+ return RHS->baseClassOf(this);
+ }
+
+ virtual bool baseClassOf(const BitRecTy *RHS) const { return true; }
+ virtual bool baseClassOf(const BitsRecTy *RHS) const { return true; }
+ virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
+ virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
+
};
/// StringRecTy - 'string' - Represent an string value
///
-struct StringRecTy : public RecTy {
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue(StringInit *SI) { return (Init*)SI; }
- Init *convertValue(VarInit *VI);
+class StringRecTy : public RecTy {
+public:
+ virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
+ virtual Init *convertValue( BitInit *BI) { return 0; }
+ virtual Init *convertValue( BitsInit *BI) { return 0; }
+ virtual Init *convertValue( IntInit *II) { return 0; }
+ virtual Init *convertValue(StringInit *SI) { return (Init*)SI; }
+ virtual Init *convertValue( ListInit *LI) { return 0; }
+ virtual Init *convertValue( CodeInit *CI) { return 0; }
+ virtual Init *convertValue(VarBitInit *VB) { return 0; }
+ virtual Init *convertValue( DefInit *DI) { return 0; }
+ virtual Init *convertValue( DagInit *DI) { return 0; }
+ virtual Init *convertValue( TypedInit *TI);
+ virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
+ virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
+
void print(std::ostream &OS) const { OS << "string"; }
+
+ bool typeIsConvertibleTo(const RecTy *RHS) const {
+ return RHS->baseClassOf(this);
+ }
+
+ virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const StringRecTy *RHS) const { return true; }
+ virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
};
-/// ListRecTy - 'list<class>' - Represent a list defs, all of which must be
-/// derived from the specified class.
+// ListRecTy - 'list<Ty>' - Represent a list of values, all of which must be of
+// the specified type.
+/// ListRecTy - 'list<Ty>' - Represent a list of values, all of which must
+/// be of the specified type.
///
class ListRecTy : public RecTy {
- Record *Class;
+ RecTy *Ty;
public:
- ListRecTy(Record *C) : Class(C) {}
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue(ListInit *LI);
-
+ ListRecTy(RecTy *T) : Ty(T) {}
+
+ RecTy *getElementType() const { return Ty; }
+
+ virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
+ virtual Init *convertValue( BitInit *BI) { return 0; }
+ virtual Init *convertValue( BitsInit *BI) { return 0; }
+ virtual Init *convertValue( IntInit *II) { return 0; }
+ virtual Init *convertValue(StringInit *SI) { return 0; }
+ virtual Init *convertValue( ListInit *LI);
+ virtual Init *convertValue( CodeInit *CI) { return 0; }
+ virtual Init *convertValue(VarBitInit *VB) { return 0; }
+ virtual Init *convertValue( DefInit *DI) { return 0; }
+ virtual Init *convertValue( DagInit *DI) { return 0; }
+ virtual Init *convertValue( TypedInit *TI);
+ virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
+ virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
+
void print(std::ostream &OS) const;
+
+ bool typeIsConvertibleTo(const RecTy *RHS) const {
+ return RHS->baseClassOf(this);
+ }
+
+ virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const ListRecTy *RHS) const {
+ return RHS->getElementType()->typeIsConvertibleTo(Ty);
+ }
+ virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
+};
+
+/// CodeRecTy - 'code' - Represent an code fragment, function or method.
+///
+class CodeRecTy : public RecTy {
+public:
+ virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
+ virtual Init *convertValue( BitInit *BI) { return 0; }
+ virtual Init *convertValue( BitsInit *BI) { return 0; }
+ virtual Init *convertValue( IntInit *II) { return 0; }
+ virtual Init *convertValue(StringInit *SI) { return 0; }
+ virtual Init *convertValue( ListInit *LI) { return 0; }
+ virtual Init *convertValue( CodeInit *CI) { return (Init*)CI; }
+ virtual Init *convertValue(VarBitInit *VB) { return 0; }
+ virtual Init *convertValue( DefInit *DI) { return 0; }
+ virtual Init *convertValue( DagInit *DI) { return 0; }
+ virtual Init *convertValue( TypedInit *TI);
+ virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
+ virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
+
+
+ void print(std::ostream &OS) const { OS << "code"; }
+
+ bool typeIsConvertibleTo(const RecTy *RHS) const {
+ return RHS->baseClassOf(this);
+ }
+ virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const CodeRecTy *RHS) const { return true; }
+ virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
+};
+
+/// DagRecTy - 'dag' - Represent a dag fragment
+///
+class DagRecTy : public RecTy {
+public:
+ virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
+ virtual Init *convertValue( BitInit *BI) { return 0; }
+ virtual Init *convertValue( BitsInit *BI) { return 0; }
+ virtual Init *convertValue( IntInit *II) { return 0; }
+ virtual Init *convertValue(StringInit *SI) { return 0; }
+ virtual Init *convertValue( ListInit *LI) { return 0; }
+ virtual Init *convertValue( CodeInit *CI) { return 0; }
+ virtual Init *convertValue(VarBitInit *VB) { return 0; }
+ virtual Init *convertValue( DefInit *DI) { return 0; }
+ virtual Init *convertValue( DagInit *CI) { return (Init*)CI; }
+ virtual Init *convertValue( TypedInit *TI);
+ virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
+ virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
+
+ void print(std::ostream &OS) const { OS << "dag"; }
+
+ bool typeIsConvertibleTo(const RecTy *RHS) const {
+ return RHS->baseClassOf(this);
+ }
+
+ virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const DagRecTy *RHS) const { return true; }
+ virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
};
-/// RecordRecTy - '<classname>' - Represent an instance of a class, such as:
+
+/// RecordRecTy - '[classname]' - Represent an instance of a class, such as:
/// (R32 X = EAX).
///
class RecordRecTy : public RecTy {
Record *getRecord() const { return Rec; }
- Init *convertValue(UnsetInit *UI) { return (Init*)UI; }
- Init *convertValue( DefInit *DI);
+ virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
+ virtual Init *convertValue( BitInit *BI) { return 0; }
+ virtual Init *convertValue( BitsInit *BI) { return 0; }
+ virtual Init *convertValue( IntInit *II) { return 0; }
+ virtual Init *convertValue(StringInit *SI) { return 0; }
+ virtual Init *convertValue( ListInit *LI) { return 0; }
+ virtual Init *convertValue( CodeInit *CI) { return 0; }
+ virtual Init *convertValue(VarBitInit *VB) { return 0; }
+ virtual Init *convertValue( DefInit *DI);
+ virtual Init *convertValue( DagInit *DI) { return 0; }
+ virtual Init *convertValue( TypedInit *VI);
+ virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
+ virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
void print(std::ostream &OS) const;
+
+ bool typeIsConvertibleTo(const RecTy *RHS) const {
+ return RHS->baseClassOf(this);
+ }
+ virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
+ virtual bool baseClassOf(const RecordRecTy *RHS) const;
};
struct Init {
virtual ~Init() {}
- virtual bool isComplete() const = 0;
+ /// isComplete - This virtual method should be overridden by values that may
+ /// not be completely specified yet.
+ virtual bool isComplete() const { return true; }
+
+ /// print - Print out this value.
virtual void print(std::ostream &OS) const = 0;
+
+ /// dump - Debugging method that may be called through a debugger, just
+ /// invokes print on cerr.
void dump() const;
+ /// convertInitializerTo - This virtual function is a simple call-back
+ /// function that should be overridden to call the appropriate
+ /// RecTy::convertValue method.
+ ///
virtual Init *convertInitializerTo(RecTy *Ty) = 0;
+
+ /// convertInitializerBitRange - This method is used to implement the bitrange
+ /// selection operator. Given an initializer, it selects the specified bits
+ /// out, returning them as a new init of bits type. If it is not legal to use
+ /// the bit subscript operator on this initializer, return null.
+ ///
virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits) {
return 0;
}
+ /// convertInitListSlice - This method is used to implement the list slice
+ /// selection operator. Given an initializer, it selects the specified list
+ /// elements, returning them as a new init of list type. If it is not legal
+ /// to take a slice of this, return null.
+ ///
+ virtual Init *convertInitListSlice(const std::vector<unsigned> &Elements) {
+ return 0;
+ }
+
/// getFieldType - This method is used to implement the FieldInit class.
/// Implementors of this method should return the type of the named field if
/// they are of record type.
///
virtual RecTy *getFieldType(const std::string &FieldName) const { return 0; }
- virtual Init *resolveReferences(Record &R) { return this; }
+ /// 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;
+ }
+
+ enum BinaryOp { SHL, SRA, SRL };
+ virtual Init *getBinaryOp(BinaryOp Op, Init *RHS) {
+ 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
+ /// users of the value to allow the value to propagate out.
+ ///
+ virtual Init *resolveReferences(Record &R, const RecordVal *RV) {
+ return this;
+ }
};
inline std::ostream &operator<<(std::ostream &OS, const Init &I) {
/// UnsetInit - ? - Represents an uninitialized value
///
-struct UnsetInit : public Init {
+class UnsetInit : public Init {
+public:
virtual Init *convertInitializerTo(RecTy *Ty) {
return Ty->convertValue(this);
}
return Ty->convertValue(this);
}
- virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << (Value ? "1" : "0"); }
};
}
void setBit(unsigned Bit, Init *V) {
assert(Bit < Bits.size() && "Bit index out of range!");
+ assert(Bits[Bit] == 0 && "Bit already set!");
Bits[Bit] = V;
}
}
virtual void print(std::ostream &OS) const;
- virtual Init *resolveReferences(Record &R);
+ virtual Init *resolveReferences(Record &R, const RecordVal *RV);
// printXX - Print this bitstream with the specified format, returning true if
// it is not possible.
}
virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
- virtual bool isComplete() const { return true; }
+ virtual Init *getBinaryOp(BinaryOp Op, Init *RHS);
+
virtual void print(std::ostream &OS) const { OS << Value; }
};
public:
StringInit(const std::string &V) : Value(V) {}
+ const std::string &getValue() const { return Value; }
+
virtual Init *convertInitializerTo(RecTy *Ty) {
return Ty->convertValue(this);
}
- virtual bool isComplete() const { return true; }
virtual void print(std::ostream &OS) const { OS << "\"" << Value << "\""; }
};
+/// CodeInit - "[{...}]" - Represent a code fragment.
+///
+class CodeInit : public Init {
+ std::string Value;
+public:
+ CodeInit(const std::string &V) : Value(V) {}
+
+ const std::string getValue() const { return Value; }
+
+ virtual Init *convertInitializerTo(RecTy *Ty) {
+ return Ty->convertValue(this);
+ }
+
+ virtual void print(std::ostream &OS) const { OS << "[{" << Value << "}]"; }
+};
+
/// ListInit - [AL, AH, CL] - Represent a list of defs
///
class ListInit : public Init {
- std::vector<Record*> Records;
+ std::vector<Init*> Values;
public:
- ListInit(std::vector<Record*> &Rs) {
- Records.swap(Rs);
+ ListInit(std::vector<Init*> &Vs) {
+ Values.swap(Vs);
}
- unsigned getSize() const { return Records.size(); }
- Record *getElement(unsigned i) const {
- assert(i < Records.size() && "List element index out of range!");
- return Records[i];
+ unsigned getSize() const { return Values.size(); }
+ Init *getElement(unsigned i) const {
+ assert(i < Values.size() && "List element index out of range!");
+ return Values[i];
}
+ Init *convertInitListSlice(const std::vector<unsigned> &Elements);
+
virtual Init *convertInitializerTo(RecTy *Ty) {
return Ty->convertValue(this);
}
- virtual bool isComplete() const { return true; }
+ /// 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
+ /// users of the value to allow the value to propagate out.
+ ///
+ virtual Init *resolveReferences(Record &R, const RecordVal *RV);
+
virtual void print(std::ostream &OS) const;
};
+
+/// TypedInit - This is the common super-class of types that have a specific,
+/// explicit, type.
+///
+class TypedInit : public Init {
+ RecTy *Ty;
+public:
+ TypedInit(RecTy *T) : Ty(T) {}
+
+ RecTy *getType() const { return Ty; }
+
+ virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
+ virtual Init *convertInitListSlice(const std::vector<unsigned> &Elements);
+
+ /// resolveBitReference - This method is used to implement
+ /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
+ /// simply return the resolved value, otherwise we return null.
+ ///
+ virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
+ unsigned Bit) = 0;
+
+ /// resolveListElementReference - This method is used to implement
+ /// VarListElementInit::resolveReferences. If the list element is resolvable
+ /// now, we return the resolved value, otherwise we return null.
+ virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
+ unsigned Elt) = 0;
+};
+
/// VarInit - 'Opcode' - Represent a reference to an entire variable object.
///
-class VarInit : public Init {
+class VarInit : public TypedInit {
std::string VarName;
- RecTy *Ty;
public:
- VarInit(const std::string &VN, RecTy *T) : VarName(VN), Ty(T) {}
-
+ VarInit(const std::string &VN, RecTy *T) : TypedInit(T), VarName(VN) {}
+
virtual Init *convertInitializerTo(RecTy *Ty) {
return Ty->convertValue(this);
}
const std::string &getName() const { return VarName; }
- RecTy *getType() const { return Ty; }
- virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
+ virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
+ unsigned Bit);
+ virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
+ unsigned Elt);
virtual RecTy *getFieldType(const std::string &FieldName) const;
-
- virtual bool isComplete() const { return true; }
+ virtual Init *getFieldInit(Record &R, const std::string &FieldName) const;
+
+ /// 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
+ /// users of the value to allow the value to propagate out.
+ ///
+ virtual Init *resolveReferences(Record &R, const RecordVal *RV);
+
virtual void print(std::ostream &OS) const { OS << VarName; }
};
-/// VarBitInit - Opcode{0} - Represent access to one bit of a variable
+/// VarBitInit - Opcode{0} - Represent access to one bit of a variable or field.
///
class VarBitInit : public Init {
- VarInit *VI;
+ TypedInit *TI;
unsigned Bit;
public:
- VarBitInit(VarInit *V, unsigned B) : VI(V), Bit(B) {}
+ VarBitInit(TypedInit *T, unsigned B) : TI(T), Bit(B) {
+ assert(T->getType() && dynamic_cast<BitsRecTy*>(T->getType()) &&
+ ((BitsRecTy*)T->getType())->getNumBits() > B &&
+ "Illegal VarBitInit expression!");
+ }
virtual Init *convertInitializerTo(RecTy *Ty) {
return Ty->convertValue(this);
}
- VarInit *getVariable() const { return VI; }
+ TypedInit *getVariable() const { return TI; }
unsigned getBitNum() const { return Bit; }
-
- virtual bool isComplete() const { return true; }
+
virtual void print(std::ostream &OS) const {
- VI->print(OS); OS << "{" << Bit << "}";
+ TI->print(OS); OS << "{" << Bit << "}";
}
- virtual Init *resolveReferences(Record &R);
+ virtual Init *resolveReferences(Record &R, const RecordVal *RV);
};
+/// VarListElementInit - List[4] - Represent access to one element of a var or
+/// field.
+class VarListElementInit : public TypedInit {
+ TypedInit *TI;
+ unsigned Element;
+public:
+ VarListElementInit(TypedInit *T, unsigned E)
+ : TypedInit(dynamic_cast<ListRecTy*>(T->getType())->getElementType()),
+ TI(T), Element(E) {
+ assert(T->getType() && dynamic_cast<ListRecTy*>(T->getType()) &&
+ "Illegal VarBitInit expression!");
+ }
+
+ virtual Init *convertInitializerTo(RecTy *Ty) {
+ return Ty->convertValue(this);
+ }
+
+ TypedInit *getVariable() const { return TI; }
+ unsigned getElementNum() const { return Element; }
+
+ virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
+ unsigned Bit);
+
+ /// resolveListElementReference - This method is used to implement
+ /// VarListElementInit::resolveReferences. If the list element is resolvable
+ /// now, we return the resolved value, otherwise we return null.
+ virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
+ unsigned Elt);
+
+ virtual void print(std::ostream &OS) const {
+ TI->print(OS); OS << "[" << Element << "]";
+ }
+ virtual Init *resolveReferences(Record &R, const RecordVal *RV);
+};
/// DefInit - AL - Represent a reference to a 'def' in the description
///
Record *Def;
public:
DefInit(Record *D) : Def(D) {}
-
+
virtual Init *convertInitializerTo(RecTy *Ty) {
return Ty->convertValue(this);
}
Record *getDef() const { return Def; }
//virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
-
- virtual bool isComplete() const { return true; }
+
+ 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;
};
/// FieldInit - X.Y - Represent a reference to a subfield of a variable
///
-class FieldInit : public Init {
+class FieldInit : public TypedInit {
Init *Rec; // Record we are referring to
std::string FieldName; // Field we are accessing
- RecTy *Ty; // The type of this expression
public:
FieldInit(Init *R, const std::string &FN)
- : Rec(R), FieldName(FN), Ty(R->getFieldType(FN)) {
- assert(Ty && "FieldInit with non-record type!");
+ : TypedInit(R->getFieldType(FN)), Rec(R), FieldName(FN) {
+ assert(getType() && "FieldInit with non-record type!");
}
virtual Init *convertInitializerTo(RecTy *Ty) {
return Ty->convertValue(this);
}
- virtual bool isComplete() const { return true; }
+ virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
+ unsigned Bit);
+ virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
+ unsigned Elt);
+
+ virtual Init *resolveReferences(Record &R, const RecordVal *RV);
+
virtual void print(std::ostream &OS) const {
Rec->print(OS); OS << "." << FieldName;
}
};
+/// DagInit - (def a, b) - Represent a DAG tree value. DAG inits are required
+/// to have Records for their first value, after that, any legal Init is
+/// possible.
+///
+class DagInit : public Init {
+ Record *NodeTypeDef;
+ std::vector<Init*> Args;
+ std::vector<std::string> ArgNames;
+public:
+ DagInit(Record *D, const std::vector<std::pair<Init*, std::string> > &args)
+ : NodeTypeDef(D) {
+ Args.reserve(args.size());
+ ArgNames.reserve(args.size());
+ for (unsigned i = 0, e = args.size(); i != e; ++i) {
+ Args.push_back(args[i].first);
+ ArgNames.push_back(args[i].second);
+ }
+ }
+
+ virtual Init *convertInitializerTo(RecTy *Ty) {
+ return Ty->convertValue(this);
+ }
+
+ Record *getNodeType() const { return NodeTypeDef; }
+
+ unsigned getNumArgs() const { return Args.size(); }
+ Init *getArg(unsigned Num) const {
+ assert(Num < Args.size() && "Arg number out of range!");
+ return Args[Num];
+ }
+ const std::string &getArgName(unsigned Num) const {
+ assert(Num < ArgNames.size() && "Arg number out of range!");
+ return ArgNames[Num];
+ }
+
+ void setArg(unsigned Num, Init *I) {
+ assert(Num < Args.size() && "Arg number out of range!");
+ Args[Num] = I;
+ }
+
+ virtual void print(std::ostream &OS) const;
+};
//===----------------------------------------------------------------------===//
// High-Level Classes
Init *Value;
public:
RecordVal(const std::string &N, RecTy *T, unsigned P);
- ~RecordVal() { /*delete Ty; delete Value; Bad for copy ctor!*/ }
const std::string &getName() const { return Name; }
return OS;
}
-struct Record {
+class Record {
const std::string Name;
std::vector<std::string> TemplateArgs;
std::vector<RecordVal> Values;
Values.push_back(RV);
}
+ void removeValue(const std::string &Name) {
+ assert(getValue(Name) && "Cannot remove an entry that does not exist!");
+ for (unsigned i = 0, e = Values.size(); i != e; ++i)
+ if (Values[i].getName() == Name) {
+ Values.erase(Values.begin()+i);
+ return;
+ }
+ assert(0 && "Name does not exist in record!");
+ }
+
bool isSubClassOf(Record *R) const {
for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
if (SuperClasses[i] == R)
- return true;
+ return true;
+ return false;
+ }
+
+ bool isSubClassOf(const std::string &Name) const {
+ for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
+ if (SuperClasses[i]->getName() == Name)
+ return true;
return false;
}
SuperClasses.push_back(R);
}
- // resolveReferences - If there are any field references that refer to fields
- // that have been filled in, we can propagate the values now.
- //
- void resolveReferences();
+ /// resolveReferences - If there are any field references that refer to fields
+ /// that have been filled in, we can propagate the values now.
+ ///
+ void resolveReferences() { resolveReferencesTo(0); }
+
+ /// resolveReferencesTo - If anything in this record refers to RV, replace the
+ /// reference to RV with the RHS of RV. If RV is null, we resolve all
+ /// possible references.
+ void resolveReferencesTo(const RecordVal *RV);
void dump() const;
+
+ //===--------------------------------------------------------------------===//
+ // High-level methods useful to tablegen back-ends
+ //
+
+ /// getValueInit - Return the initializer for a value with the specified name,
+ /// or throw an exception if the field does not exist.
+ ///
+ Init *getValueInit(const std::string &FieldName) const;
+
+ /// getValueAsString - This method looks up the specified field and returns
+ /// its value as a string, throwing an exception if the field does not exist
+ /// or if the value is not a string.
+ ///
+ std::string getValueAsString(const std::string &FieldName) const;
+
+ /// getValueAsBitsInit - This method looks up the specified field and returns
+ /// its value as a BitsInit, throwing an exception if the field does not exist
+ /// or if the value is not the right type.
+ ///
+ BitsInit *getValueAsBitsInit(const std::string &FieldName) const;
+
+ /// getValueAsListInit - This method looks up the specified field and returns
+ /// its value as a ListInit, throwing an exception if the field does not exist
+ /// or if the value is not the right type.
+ ///
+ ListInit *getValueAsListInit(const std::string &FieldName) const;
+
+ /// getValueAsDef - This method looks up the specified field and returns its
+ /// value as a Record, throwing an exception if the field does not exist or if
+ /// the value is not the right type.
+ ///
+ Record *getValueAsDef(const std::string &FieldName) const;
+
+ /// getValueAsBit - This method looks up the specified field and returns its
+ /// value as a bit, throwing an exception if the field does not exist or if
+ /// the value is not the right type.
+ ///
+ bool getValueAsBit(const std::string &FieldName) const;
+
+ /// getValueAsInt - This method looks up the specified field and returns its
+ /// value as an int, throwing an exception if the field does not exist or if
+ /// the value is not the right type.
+ ///
+ int getValueAsInt(const std::string &FieldName) const;
+
+ /// getValueAsDag - This method looks up the specified field and returns its
+ /// value as an Dag, throwing an exception if the field does not exist or if
+ /// the value is not the right type.
+ ///
+ DagInit *getValueAsDag(const std::string &FieldName) const;
};
std::ostream &operator<<(std::ostream &OS, const Record &R);
public:
~RecordKeeper() {
for (std::map<std::string, Record*>::iterator I = Classes.begin(),
- E = Classes.end(); I != E; ++I)
+ E = Classes.end(); I != E; ++I)
delete I->second;
for (std::map<std::string, Record*>::iterator I = Defs.begin(),
- E = Defs.end(); I != E; ++I)
+ E = Defs.end(); I != E; ++I)
delete I->second;
}
-
+
const std::map<std::string, Record*> &getClasses() const { return Classes; }
const std::map<std::string, Record*> &getDefs() const { return Defs; }
Defs.insert(std::make_pair(R->getName(), R));
}
+ //===--------------------------------------------------------------------===//
+ // High-level helper methods, useful for tablegen backends...
+
+ /// getAllDerivedDefinitions - This method returns all concrete definitions
+ /// that derive from the specified class name. If a class with the specified
+ /// name does not exist, an exception is thrown.
+ std::vector<Record*>
+ getAllDerivedDefinitions(const std::string &ClassName) const;
+
+
void dump() const;
};
extern RecordKeeper Records;
+} // End llvm namespace
+
#endif
projects / oota-llvm.git / blobdiff