forked from OSchip/llvm-project
1185 lines
42 KiB
C++
1185 lines
42 KiB
C++
//===- Record.h - Classes to represent Table Records ------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the main TableGen data structures, including the TableGen
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// types, values, and high-level data structures.
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//
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//===----------------------------------------------------------------------===//
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#ifndef RECORD_H
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#define RECORD_H
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#include <string>
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#include <vector>
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#include <map>
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#include <ostream>
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#include <cassert>
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namespace llvm {
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// RecTy subclasses.
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class BitRecTy;
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class BitsRecTy;
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class IntRecTy;
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class StringRecTy;
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class ListRecTy;
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class CodeRecTy;
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class DagRecTy;
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class RecordRecTy;
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// Init subclasses.
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struct Init;
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class UnsetInit;
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class BitInit;
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class BitsInit;
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class IntInit;
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class StringInit;
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class CodeInit;
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class ListInit;
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class BinOpInit;
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class DefInit;
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class DagInit;
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class TypedInit;
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class VarInit;
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class FieldInit;
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class VarBitInit;
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class VarListElementInit;
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// Other classes.
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class Record;
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class RecordVal;
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//===----------------------------------------------------------------------===//
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// Type Classes
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//===----------------------------------------------------------------------===//
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struct RecTy {
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virtual ~RecTy() {}
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virtual std::string getAsString() const = 0;
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void print(std::ostream &OS) const { OS << getAsString(); }
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void dump() const;
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/// typeIsConvertibleTo - Return true if all values of 'this' type can be
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/// converted to the specified type.
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virtual bool typeIsConvertibleTo(const RecTy *RHS) const = 0;
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public: // These methods should only be called from subclasses of Init
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virtual Init *convertValue( UnsetInit *UI) { return 0; }
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virtual Init *convertValue( BitInit *BI) { return 0; }
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virtual Init *convertValue( BitsInit *BI) { return 0; }
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virtual Init *convertValue( IntInit *II) { return 0; }
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virtual Init *convertValue(StringInit *SI) { return 0; }
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virtual Init *convertValue( ListInit *LI) { return 0; }
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virtual Init *convertValue( BinOpInit *UI) { return 0; }
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virtual Init *convertValue( CodeInit *CI) { return 0; }
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virtual Init *convertValue(VarBitInit *VB) { return 0; }
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virtual Init *convertValue( DefInit *DI) { return 0; }
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virtual Init *convertValue( DagInit *DI) { return 0; }
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virtual Init *convertValue( TypedInit *TI) { return 0; }
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virtual Init *convertValue( VarInit *VI) {
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return convertValue((TypedInit*)VI);
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}
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virtual Init *convertValue( FieldInit *FI) {
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return convertValue((TypedInit*)FI);
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}
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public: // These methods should only be called by subclasses of RecTy.
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// baseClassOf - These virtual methods should be overloaded to return true iff
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// all values of type 'RHS' can be converted to the 'this' type.
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virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
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};
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inline std::ostream &operator<<(std::ostream &OS, const RecTy &Ty) {
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Ty.print(OS);
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return OS;
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}
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/// BitRecTy - 'bit' - Represent a single bit
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///
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class BitRecTy : public RecTy {
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public:
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virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
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virtual Init *convertValue( BitInit *BI) { return (Init*)BI; }
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virtual Init *convertValue( BitsInit *BI);
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virtual Init *convertValue( IntInit *II);
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virtual Init *convertValue(StringInit *SI) { return 0; }
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virtual Init *convertValue( ListInit *LI) { return 0; }
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virtual Init *convertValue( CodeInit *CI) { return 0; }
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virtual Init *convertValue(VarBitInit *VB) { return (Init*)VB; }
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virtual Init *convertValue( DefInit *DI) { return 0; }
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virtual Init *convertValue( DagInit *DI) { return 0; }
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virtual Init *convertValue( BinOpInit *UI) { return 0; }
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virtual Init *convertValue( TypedInit *TI);
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virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
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virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
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std::string getAsString() const { return "bit"; }
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bool typeIsConvertibleTo(const RecTy *RHS) const {
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return RHS->baseClassOf(this);
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}
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virtual bool baseClassOf(const BitRecTy *RHS) const { return true; }
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virtual bool baseClassOf(const BitsRecTy *RHS) const;
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virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
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virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
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};
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// BitsRecTy - 'bits<n>' - Represent a fixed number of bits
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/// BitsRecTy - 'bits<n>' - Represent a fixed number of bits
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///
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class BitsRecTy : public RecTy {
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unsigned Size;
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public:
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BitsRecTy(unsigned Sz) : Size(Sz) {}
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unsigned getNumBits() const { return Size; }
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virtual Init *convertValue( UnsetInit *UI);
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virtual Init *convertValue( BitInit *UI);
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virtual Init *convertValue( BitsInit *BI);
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virtual Init *convertValue( IntInit *II);
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virtual Init *convertValue(StringInit *SI) { return 0; }
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virtual Init *convertValue( ListInit *LI) { return 0; }
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virtual Init *convertValue( CodeInit *CI) { return 0; }
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virtual Init *convertValue(VarBitInit *VB) { return 0; }
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virtual Init *convertValue( DefInit *DI) { return 0; }
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virtual Init *convertValue( DagInit *DI) { return 0; }
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virtual Init *convertValue( BinOpInit *UI) { return 0; }
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virtual Init *convertValue( TypedInit *TI);
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virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
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virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
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std::string getAsString() const;
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bool typeIsConvertibleTo(const RecTy *RHS) const {
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return RHS->baseClassOf(this);
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}
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virtual bool baseClassOf(const BitRecTy *RHS) const { return Size == 1; }
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virtual bool baseClassOf(const BitsRecTy *RHS) const {
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return RHS->Size == Size;
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}
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virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
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virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
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};
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/// IntRecTy - 'int' - Represent an integer value of no particular size
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///
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class IntRecTy : public RecTy {
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public:
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virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
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virtual Init *convertValue( BitInit *BI);
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virtual Init *convertValue( BitsInit *BI);
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virtual Init *convertValue( IntInit *II) { return (Init*)II; }
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virtual Init *convertValue(StringInit *SI) { return 0; }
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virtual Init *convertValue( ListInit *LI) { return 0; }
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virtual Init *convertValue( CodeInit *CI) { return 0; }
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virtual Init *convertValue(VarBitInit *VB) { return 0; }
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virtual Init *convertValue( DefInit *DI) { return 0; }
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virtual Init *convertValue( DagInit *DI) { return 0; }
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virtual Init *convertValue( BinOpInit *UI) { return 0; }
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virtual Init *convertValue( TypedInit *TI);
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virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
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virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
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std::string getAsString() const { return "int"; }
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bool typeIsConvertibleTo(const RecTy *RHS) const {
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return RHS->baseClassOf(this);
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}
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virtual bool baseClassOf(const BitRecTy *RHS) const { return true; }
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virtual bool baseClassOf(const BitsRecTy *RHS) const { return true; }
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virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
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virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
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};
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/// StringRecTy - 'string' - Represent an string value
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///
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class StringRecTy : public RecTy {
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public:
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virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
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virtual Init *convertValue( BitInit *BI) { return 0; }
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virtual Init *convertValue( BitsInit *BI) { return 0; }
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virtual Init *convertValue( IntInit *II) { return 0; }
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virtual Init *convertValue(StringInit *SI) { return (Init*)SI; }
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virtual Init *convertValue( ListInit *LI) { return 0; }
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virtual Init *convertValue( BinOpInit *BO);
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virtual Init *convertValue( CodeInit *CI) { return 0; }
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virtual Init *convertValue(VarBitInit *VB) { return 0; }
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virtual Init *convertValue( DefInit *DI) { return 0; }
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virtual Init *convertValue( DagInit *DI) { return 0; }
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virtual Init *convertValue( TypedInit *TI);
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virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
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virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
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std::string getAsString() const { return "string"; }
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bool typeIsConvertibleTo(const RecTy *RHS) const {
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return RHS->baseClassOf(this);
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}
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virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const StringRecTy *RHS) const { return true; }
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virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
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};
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// ListRecTy - 'list<Ty>' - Represent a list of values, all of which must be of
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// the specified type.
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/// ListRecTy - 'list<Ty>' - Represent a list of values, all of which must
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/// be of the specified type.
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///
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class ListRecTy : public RecTy {
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RecTy *Ty;
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public:
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ListRecTy(RecTy *T) : Ty(T) {}
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RecTy *getElementType() const { return Ty; }
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virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
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virtual Init *convertValue( BitInit *BI) { return 0; }
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virtual Init *convertValue( BitsInit *BI) { return 0; }
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virtual Init *convertValue( IntInit *II) { return 0; }
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virtual Init *convertValue(StringInit *SI) { return 0; }
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virtual Init *convertValue( ListInit *LI);
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virtual Init *convertValue( CodeInit *CI) { return 0; }
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virtual Init *convertValue(VarBitInit *VB) { return 0; }
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virtual Init *convertValue( DefInit *DI) { return 0; }
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virtual Init *convertValue( DagInit *DI) { return 0; }
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virtual Init *convertValue( BinOpInit *UI) { return 0; }
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virtual Init *convertValue( TypedInit *TI);
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virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
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virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
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std::string getAsString() const;
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bool typeIsConvertibleTo(const RecTy *RHS) const {
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return RHS->baseClassOf(this);
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}
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virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const ListRecTy *RHS) const {
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return RHS->getElementType()->typeIsConvertibleTo(Ty);
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}
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virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
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};
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/// CodeRecTy - 'code' - Represent an code fragment, function or method.
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///
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class CodeRecTy : public RecTy {
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public:
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virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
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virtual Init *convertValue( BitInit *BI) { return 0; }
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virtual Init *convertValue( BitsInit *BI) { return 0; }
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virtual Init *convertValue( IntInit *II) { return 0; }
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virtual Init *convertValue(StringInit *SI) { return 0; }
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virtual Init *convertValue( ListInit *LI) { return 0; }
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virtual Init *convertValue( CodeInit *CI) { return (Init*)CI; }
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virtual Init *convertValue(VarBitInit *VB) { return 0; }
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virtual Init *convertValue( DefInit *DI) { return 0; }
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virtual Init *convertValue( DagInit *DI) { return 0; }
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virtual Init *convertValue( BinOpInit *UI) { return 0; }
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virtual Init *convertValue( TypedInit *TI);
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virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
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virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
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std::string getAsString() const { return "code"; }
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bool typeIsConvertibleTo(const RecTy *RHS) const {
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return RHS->baseClassOf(this);
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}
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virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const CodeRecTy *RHS) const { return true; }
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virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
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};
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/// DagRecTy - 'dag' - Represent a dag fragment
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///
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class DagRecTy : public RecTy {
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public:
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virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
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virtual Init *convertValue( BitInit *BI) { return 0; }
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virtual Init *convertValue( BitsInit *BI) { return 0; }
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virtual Init *convertValue( IntInit *II) { return 0; }
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virtual Init *convertValue(StringInit *SI) { return 0; }
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virtual Init *convertValue( ListInit *LI) { return 0; }
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virtual Init *convertValue( CodeInit *CI) { return 0; }
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virtual Init *convertValue(VarBitInit *VB) { return 0; }
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virtual Init *convertValue( DefInit *DI) { return 0; }
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virtual Init *convertValue( BinOpInit *BO);
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virtual Init *convertValue( DagInit *CI) { return (Init*)CI; }
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virtual Init *convertValue( TypedInit *TI);
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virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
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virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
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std::string getAsString() const { return "dag"; }
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bool typeIsConvertibleTo(const RecTy *RHS) const {
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return RHS->baseClassOf(this);
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}
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virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const DagRecTy *RHS) const { return true; }
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virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
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};
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/// RecordRecTy - '[classname]' - Represent an instance of a class, such as:
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/// (R32 X = EAX).
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///
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class RecordRecTy : public RecTy {
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Record *Rec;
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public:
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RecordRecTy(Record *R) : Rec(R) {}
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Record *getRecord() const { return Rec; }
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virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
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virtual Init *convertValue( BitInit *BI) { return 0; }
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virtual Init *convertValue( BitsInit *BI) { return 0; }
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virtual Init *convertValue( IntInit *II) { return 0; }
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virtual Init *convertValue(StringInit *SI) { return 0; }
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virtual Init *convertValue( ListInit *LI) { return 0; }
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virtual Init *convertValue( CodeInit *CI) { return 0; }
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virtual Init *convertValue(VarBitInit *VB) { return 0; }
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virtual Init *convertValue( BinOpInit *UI) { return 0; }
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virtual Init *convertValue( DefInit *DI);
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virtual Init *convertValue( DagInit *DI) { return 0; }
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virtual Init *convertValue( TypedInit *VI);
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virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
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virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
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std::string getAsString() const;
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bool typeIsConvertibleTo(const RecTy *RHS) const {
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return RHS->baseClassOf(this);
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}
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virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
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virtual bool baseClassOf(const RecordRecTy *RHS) const;
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};
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//===----------------------------------------------------------------------===//
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// Initializer Classes
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//===----------------------------------------------------------------------===//
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struct Init {
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virtual ~Init() {}
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/// isComplete - This virtual method should be overridden by values that may
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/// not be completely specified yet.
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virtual bool isComplete() const { return true; }
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/// print - Print out this value.
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void print(std::ostream &OS) const { OS << getAsString(); }
|
|
|
|
/// getAsString - Convert this value to a string form.
|
|
virtual std::string getAsString() 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; }
|
|
|
|
/// 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
|
|
/// 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) {
|
|
I.print(OS); return OS;
|
|
}
|
|
|
|
|
|
/// UnsetInit - ? - Represents an uninitialized value
|
|
///
|
|
class UnsetInit : public Init {
|
|
public:
|
|
virtual Init *convertInitializerTo(RecTy *Ty) {
|
|
return Ty->convertValue(this);
|
|
}
|
|
|
|
virtual bool isComplete() const { return false; }
|
|
virtual std::string getAsString() const { return "?"; }
|
|
};
|
|
|
|
|
|
/// BitInit - true/false - Represent a concrete initializer for a bit.
|
|
///
|
|
class BitInit : public Init {
|
|
bool Value;
|
|
public:
|
|
explicit BitInit(bool V) : Value(V) {}
|
|
|
|
bool getValue() const { return Value; }
|
|
|
|
virtual Init *convertInitializerTo(RecTy *Ty) {
|
|
return Ty->convertValue(this);
|
|
}
|
|
|
|
virtual std::string getAsString() const { return Value ? "1" : "0"; }
|
|
};
|
|
|
|
/// BitsInit - { a, b, c } - Represents an initializer for a BitsRecTy value.
|
|
/// It contains a vector of bits, whose size is determined by the type.
|
|
///
|
|
class BitsInit : public Init {
|
|
std::vector<Init*> Bits;
|
|
public:
|
|
explicit BitsInit(unsigned Size) : Bits(Size) {}
|
|
|
|
unsigned getNumBits() const { return Bits.size(); }
|
|
|
|
Init *getBit(unsigned Bit) const {
|
|
assert(Bit < Bits.size() && "Bit index out of range!");
|
|
return Bits[Bit];
|
|
}
|
|
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 Init *convertInitializerTo(RecTy *Ty) {
|
|
return Ty->convertValue(this);
|
|
}
|
|
virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
|
|
|
|
virtual bool isComplete() const {
|
|
for (unsigned i = 0; i != getNumBits(); ++i)
|
|
if (!getBit(i)->isComplete()) return false;
|
|
return true;
|
|
}
|
|
virtual std::string getAsString() const;
|
|
|
|
virtual Init *resolveReferences(Record &R, const RecordVal *RV);
|
|
|
|
// printXX - Print this bitstream with the specified format, returning true if
|
|
// it is not possible.
|
|
bool printInHex(std::ostream &OS) const;
|
|
bool printAsVariable(std::ostream &OS) const;
|
|
bool printAsUnset(std::ostream &OS) const;
|
|
};
|
|
|
|
|
|
/// IntInit - 7 - Represent an initalization by a literal integer value.
|
|
///
|
|
class IntInit : public Init {
|
|
int Value;
|
|
public:
|
|
explicit IntInit(int V) : Value(V) {}
|
|
|
|
int getValue() const { return Value; }
|
|
|
|
virtual Init *convertInitializerTo(RecTy *Ty) {
|
|
return Ty->convertValue(this);
|
|
}
|
|
virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
|
|
|
|
virtual std::string getAsString() const;
|
|
};
|
|
|
|
|
|
/// StringInit - "foo" - Represent an initialization by a string value.
|
|
///
|
|
class StringInit : public Init {
|
|
std::string Value;
|
|
public:
|
|
explicit StringInit(const std::string &V) : Value(V) {}
|
|
|
|
const std::string &getValue() const { return Value; }
|
|
|
|
virtual Init *convertInitializerTo(RecTy *Ty) {
|
|
return Ty->convertValue(this);
|
|
}
|
|
|
|
virtual std::string getAsString() const { return "\"" + Value + "\""; }
|
|
};
|
|
|
|
/// CodeInit - "[{...}]" - Represent a code fragment.
|
|
///
|
|
class CodeInit : public Init {
|
|
std::string Value;
|
|
public:
|
|
explicit CodeInit(const std::string &V) : Value(V) {}
|
|
|
|
const std::string getValue() const { return Value; }
|
|
|
|
virtual Init *convertInitializerTo(RecTy *Ty) {
|
|
return Ty->convertValue(this);
|
|
}
|
|
|
|
virtual std::string getAsString() const { return "[{" + Value + "}]"; }
|
|
};
|
|
|
|
/// ListInit - [AL, AH, CL] - Represent a list of defs
|
|
///
|
|
class ListInit : public Init {
|
|
std::vector<Init*> Values;
|
|
public:
|
|
explicit ListInit(std::vector<Init*> &Vs) {
|
|
Values.swap(Vs);
|
|
}
|
|
|
|
unsigned getSize() const { return Values.size(); }
|
|
Init *getElement(unsigned i) const {
|
|
assert(i < Values.size() && "List element index out of range!");
|
|
return Values[i];
|
|
}
|
|
|
|
Record *getElementAsRecord(unsigned i) const;
|
|
|
|
Init *convertInitListSlice(const std::vector<unsigned> &Elements);
|
|
|
|
virtual Init *convertInitializerTo(RecTy *Ty) {
|
|
return Ty->convertValue(this);
|
|
}
|
|
|
|
/// 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 std::string getAsString() const;
|
|
|
|
typedef std::vector<Init*>::iterator iterator;
|
|
typedef std::vector<Init*>::const_iterator const_iterator;
|
|
|
|
inline iterator begin() { return Values.begin(); }
|
|
inline const_iterator begin() const { return Values.begin(); }
|
|
inline iterator end () { return Values.end(); }
|
|
inline const_iterator end () const { return Values.end(); }
|
|
|
|
inline size_t size () const { return Values.size(); }
|
|
inline bool empty() const { return Values.empty(); }
|
|
};
|
|
|
|
/// BinOpInit - !op (X, Y) - Combine two inits.
|
|
///
|
|
class BinOpInit : public Init {
|
|
public:
|
|
enum BinaryOp { SHL, SRA, SRL, STRCONCAT, CONCAT };
|
|
private:
|
|
BinaryOp Opc;
|
|
Init *LHS, *RHS;
|
|
public:
|
|
BinOpInit(BinaryOp opc, Init *lhs, Init *rhs) : Opc(opc), LHS(lhs), RHS(rhs) {
|
|
}
|
|
|
|
BinaryOp getOpcode() const { return Opc; }
|
|
Init *getLHS() const { return LHS; }
|
|
Init *getRHS() const { return RHS; }
|
|
|
|
// Fold - If possible, fold this to a simpler init. Return this if not
|
|
// possible to fold.
|
|
Init *Fold();
|
|
|
|
virtual Init *convertInitializerTo(RecTy *Ty) {
|
|
return Ty->convertValue(this);
|
|
}
|
|
|
|
virtual Init *resolveReferences(Record &R, const RecordVal *RV);
|
|
|
|
virtual std::string getAsString() const;
|
|
};
|
|
|
|
|
|
|
|
/// TypedInit - This is the common super-class of types that have a specific,
|
|
/// explicit, type.
|
|
///
|
|
class TypedInit : public Init {
|
|
RecTy *Ty;
|
|
public:
|
|
explicit 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 TypedInit {
|
|
std::string VarName;
|
|
public:
|
|
explicit 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; }
|
|
|
|
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 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 std::string getAsString() const { return VarName; }
|
|
};
|
|
|
|
|
|
/// VarBitInit - Opcode{0} - Represent access to one bit of a variable or field.
|
|
///
|
|
class VarBitInit : public Init {
|
|
TypedInit *TI;
|
|
unsigned Bit;
|
|
public:
|
|
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);
|
|
}
|
|
|
|
TypedInit *getVariable() const { return TI; }
|
|
unsigned getBitNum() const { return Bit; }
|
|
|
|
virtual std::string getAsString() const;
|
|
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 std::string getAsString() const;
|
|
virtual Init *resolveReferences(Record &R, const RecordVal *RV);
|
|
};
|
|
|
|
/// DefInit - AL - Represent a reference to a 'def' in the description
|
|
///
|
|
class DefInit : public Init {
|
|
Record *Def;
|
|
public:
|
|
explicit 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 RecTy *getFieldType(const std::string &FieldName) const;
|
|
virtual Init *getFieldInit(Record &R, const std::string &FieldName) const;
|
|
|
|
virtual std::string getAsString() const;
|
|
};
|
|
|
|
|
|
/// FieldInit - X.Y - Represent a reference to a subfield of a variable
|
|
///
|
|
class FieldInit : public TypedInit {
|
|
Init *Rec; // Record we are referring to
|
|
std::string FieldName; // Field we are accessing
|
|
public:
|
|
FieldInit(Init *R, const std::string &FN)
|
|
: 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 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 std::string getAsString() const {
|
|
return Rec->getAsString() + "." + FieldName;
|
|
}
|
|
};
|
|
|
|
/// DagInit - (v a, b) - Represent a DAG tree value. DAG inits are required
|
|
/// to have at least one value then a (possibly empty) list of arguments. Each
|
|
/// argument can have a name associated with it.
|
|
///
|
|
class DagInit : public Init {
|
|
Init *Val;
|
|
std::vector<Init*> Args;
|
|
std::vector<std::string> ArgNames;
|
|
public:
|
|
DagInit(Init *V, const std::vector<std::pair<Init*, std::string> > &args)
|
|
: Val(V) {
|
|
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);
|
|
}
|
|
}
|
|
DagInit(Init *V, const std::vector<Init*> &args,
|
|
const std::vector<std::string> &argNames)
|
|
: Val(V), Args(args), ArgNames(argNames) {
|
|
}
|
|
|
|
virtual Init *convertInitializerTo(RecTy *Ty) {
|
|
return Ty->convertValue(this);
|
|
}
|
|
|
|
Init *getOperator() const { return Val; }
|
|
|
|
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 Init *resolveReferences(Record &R, const RecordVal *RV);
|
|
|
|
virtual std::string getAsString() const;
|
|
|
|
typedef std::vector<Init*>::iterator arg_iterator;
|
|
typedef std::vector<Init*>::const_iterator const_arg_iterator;
|
|
typedef std::vector<std::string>::iterator name_iterator;
|
|
typedef std::vector<std::string>::const_iterator const_name_iterator;
|
|
|
|
inline arg_iterator arg_begin() { return Args.begin(); }
|
|
inline const_arg_iterator arg_begin() const { return Args.begin(); }
|
|
inline arg_iterator arg_end () { return Args.end(); }
|
|
inline const_arg_iterator arg_end () const { return Args.end(); }
|
|
|
|
inline size_t arg_size () const { return Args.size(); }
|
|
inline bool arg_empty() const { return Args.empty(); }
|
|
|
|
inline name_iterator name_begin() { return ArgNames.begin(); }
|
|
inline const_name_iterator name_begin() const { return ArgNames.begin(); }
|
|
inline name_iterator name_end () { return ArgNames.end(); }
|
|
inline const_name_iterator name_end () const { return ArgNames.end(); }
|
|
|
|
inline size_t name_size () const { return ArgNames.size(); }
|
|
inline bool name_empty() const { return ArgNames.empty(); }
|
|
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// High-Level Classes
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
class RecordVal {
|
|
std::string Name;
|
|
RecTy *Ty;
|
|
unsigned Prefix;
|
|
Init *Value;
|
|
public:
|
|
RecordVal(const std::string &N, RecTy *T, unsigned P);
|
|
|
|
const std::string &getName() const { return Name; }
|
|
|
|
unsigned getPrefix() const { return Prefix; }
|
|
RecTy *getType() const { return Ty; }
|
|
Init *getValue() const { return Value; }
|
|
|
|
bool setValue(Init *V) {
|
|
if (V) {
|
|
Value = V->convertInitializerTo(Ty);
|
|
return Value == 0;
|
|
}
|
|
Value = 0;
|
|
return false;
|
|
}
|
|
|
|
void dump() const;
|
|
void print(std::ostream &OS, bool PrintSem = true) const;
|
|
};
|
|
|
|
inline std::ostream &operator<<(std::ostream &OS, const RecordVal &RV) {
|
|
RV.print(OS << " ");
|
|
return OS;
|
|
}
|
|
|
|
class Record {
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std::string Name;
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std::vector<std::string> TemplateArgs;
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std::vector<RecordVal> Values;
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std::vector<Record*> SuperClasses;
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public:
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Record(const std::string &N) : Name(N) {}
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~Record() {}
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const std::string &getName() const { return Name; }
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void setName(const std::string &Name); // Also updates RecordKeeper.
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const std::vector<std::string> &getTemplateArgs() const {
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return TemplateArgs;
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}
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const std::vector<RecordVal> &getValues() const { return Values; }
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const std::vector<Record*> &getSuperClasses() const { return SuperClasses; }
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bool isTemplateArg(const std::string &Name) const {
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for (unsigned i = 0, e = TemplateArgs.size(); i != e; ++i)
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if (TemplateArgs[i] == Name) return true;
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return false;
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}
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const RecordVal *getValue(const std::string &Name) const {
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for (unsigned i = 0, e = Values.size(); i != e; ++i)
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if (Values[i].getName() == Name) return &Values[i];
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return 0;
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}
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RecordVal *getValue(const std::string &Name) {
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for (unsigned i = 0, e = Values.size(); i != e; ++i)
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if (Values[i].getName() == Name) return &Values[i];
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return 0;
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}
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void addTemplateArg(const std::string &Name) {
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assert(!isTemplateArg(Name) && "Template arg already defined!");
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TemplateArgs.push_back(Name);
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}
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void addValue(const RecordVal &RV) {
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assert(getValue(RV.getName()) == 0 && "Value already added!");
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Values.push_back(RV);
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}
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void removeValue(const std::string &Name) {
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assert(getValue(Name) && "Cannot remove an entry that does not exist!");
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for (unsigned i = 0, e = Values.size(); i != e; ++i)
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if (Values[i].getName() == Name) {
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Values.erase(Values.begin()+i);
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return;
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}
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assert(0 && "Name does not exist in record!");
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}
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bool isSubClassOf(Record *R) const {
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for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
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if (SuperClasses[i] == R)
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return true;
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return false;
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}
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bool isSubClassOf(const std::string &Name) const {
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for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
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if (SuperClasses[i]->getName() == Name)
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return true;
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return false;
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}
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void addSuperClass(Record *R) {
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assert(!isSubClassOf(R) && "Already subclassing record!");
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SuperClasses.push_back(R);
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}
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/// resolveReferences - If there are any field references that refer to fields
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/// that have been filled in, we can propagate the values now.
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///
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void resolveReferences() { resolveReferencesTo(0); }
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/// resolveReferencesTo - If anything in this record refers to RV, replace the
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/// reference to RV with the RHS of RV. If RV is null, we resolve all
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/// possible references.
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void resolveReferencesTo(const RecordVal *RV);
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void dump() const;
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//===--------------------------------------------------------------------===//
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// High-level methods useful to tablegen back-ends
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//
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/// getValueInit - Return the initializer for a value with the specified name,
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/// or throw an exception if the field does not exist.
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///
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Init *getValueInit(const std::string &FieldName) const;
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/// getValueAsString - This method looks up the specified field and returns
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/// its value as a string, throwing an exception if the field does not exist
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/// or if the value is not a string.
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///
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std::string getValueAsString(const std::string &FieldName) const;
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/// getValueAsBitsInit - This method looks up the specified field and returns
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/// its value as a BitsInit, throwing an exception if the field does not exist
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/// or if the value is not the right type.
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///
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BitsInit *getValueAsBitsInit(const std::string &FieldName) const;
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/// getValueAsListInit - This method looks up the specified field and returns
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/// its value as a ListInit, throwing an exception if the field does not exist
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/// or if the value is not the right type.
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///
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ListInit *getValueAsListInit(const std::string &FieldName) const;
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/// getValueAsListOfDefs - This method looks up the specified field and
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/// returns its value as a vector of records, throwing an exception if the
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/// field does not exist or if the value is not the right type.
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///
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std::vector<Record*> getValueAsListOfDefs(const std::string &FieldName) const;
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/// getValueAsListOfInts - This method looks up the specified field and returns
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/// its value as a vector of integers, throwing an exception if the field does
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/// not exist or if the value is not the right type.
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///
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std::vector<int> getValueAsListOfInts(const std::string &FieldName) const;
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/// getValueAsDef - This method looks up the specified field and returns its
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/// value as a Record, throwing an exception if the field does not exist or if
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|
/// the value is not the right type.
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///
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Record *getValueAsDef(const std::string &FieldName) const;
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|
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/// getValueAsBit - This method looks up the specified field and returns its
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|
/// value as a bit, throwing an exception if the field does not exist or if
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|
/// the value is not the right type.
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|
///
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bool getValueAsBit(const std::string &FieldName) const;
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|
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/// getValueAsInt - This method looks up the specified field and returns its
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|
/// value as an int, throwing an exception if the field does not exist or if
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|
/// the value is not the right type.
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|
///
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int getValueAsInt(const std::string &FieldName) const;
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|
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/// 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
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|
/// the value is not the right type.
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|
///
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|
DagInit *getValueAsDag(const std::string &FieldName) const;
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|
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/// getValueAsCode - This method looks up the specified field and returns
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|
/// its value as the string data in a CodeInit, throwing an exception if the
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|
/// field does not exist or if the value is not a code object.
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|
///
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|
std::string getValueAsCode(const std::string &FieldName) const;
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};
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|
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std::ostream &operator<<(std::ostream &OS, const Record &R);
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|
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|
class RecordKeeper {
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|
std::map<std::string, Record*> Classes, Defs;
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|
public:
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|
~RecordKeeper() {
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|
for (std::map<std::string, Record*>::iterator I = Classes.begin(),
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E = Classes.end(); I != E; ++I)
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delete I->second;
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for (std::map<std::string, Record*>::iterator I = Defs.begin(),
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E = Defs.end(); I != E; ++I)
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delete I->second;
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}
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const std::map<std::string, Record*> &getClasses() const { return Classes; }
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|
const std::map<std::string, Record*> &getDefs() const { return Defs; }
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Record *getClass(const std::string &Name) const {
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|
std::map<std::string, Record*>::const_iterator I = Classes.find(Name);
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|
return I == Classes.end() ? 0 : I->second;
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|
}
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|
Record *getDef(const std::string &Name) const {
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|
std::map<std::string, Record*>::const_iterator I = Defs.find(Name);
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|
return I == Defs.end() ? 0 : I->second;
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|
}
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void addClass(Record *R) {
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|
assert(getClass(R->getName()) == 0 && "Class already exists!");
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|
Classes.insert(std::make_pair(R->getName(), R));
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|
}
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void addDef(Record *R) {
|
|
assert(getDef(R->getName()) == 0 && "Def already exists!");
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|
Defs.insert(std::make_pair(R->getName(), R));
|
|
}
|
|
|
|
/// removeClass - Remove, but do not delete, the specified record.
|
|
///
|
|
void removeClass(const std::string &Name) {
|
|
assert(Classes.count(Name) && "Class does not exist!");
|
|
Classes.erase(Name);
|
|
}
|
|
/// removeDef - Remove, but do not delete, the specified record.
|
|
///
|
|
void removeDef(const std::string &Name) {
|
|
assert(Defs.count(Name) && "Def does not exist!");
|
|
Defs.erase(Name);
|
|
}
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// 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;
|
|
};
|
|
|
|
std::ostream &operator<<(std::ostream &OS, const RecordKeeper &RK);
|
|
|
|
extern RecordKeeper Records;
|
|
|
|
} // End llvm namespace
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|
#endif
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