//===- InstrInfoEmitter.h - Generate a Instruction Set Desc. ----*- C++ -*-===//
//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
// This tablegen backend is responsible for emitting a description of the target
// instruction set for the code generator.
//
#ifndef INSTRINFO_EMITTER_H
#define INSTRINFO_EMITTER_H
-#include <iosfwd>
-class RecordKeeper;
+#include "TableGenBackend.h"
+#include "CodeGenDAGPatterns.h"
+#include <vector>
+#include <map>
-class InstrInfoEmitter {
+namespace llvm {
+
+class StringInit;
+class IntInit;
+class ListInit;
+class CodeGenInstruction;
+
+class InstrInfoEmitter : public TableGenBackend {
RecordKeeper &Records;
-public:
- InstrInfoEmitter(RecordKeeper &R) : Records(R) {}
+ CodeGenDAGPatterns CDP;
+ std::map<std::string, unsigned> ItinClassMap;
+public:
+ InstrInfoEmitter(RecordKeeper &R) : Records(R), CDP(R) { }
+
// run - Output the instruction set description, returning true on failure.
- void run(std::ostream &o);
+ void run(raw_ostream &OS);
+
+private:
+ typedef std::map<std::vector<std::string>, unsigned> OperandInfoMapTy;
+
+ void emitRecord(const CodeGenInstruction &Inst, unsigned Num,
+ Record *InstrInfo,
+ std::map<std::vector<Record*>, unsigned> &EL,
+ std::map<Record*, unsigned> &BM,
+ const OperandInfoMapTy &OpInfo,
+ raw_ostream &OS);
+ void emitShiftedValue(Record *R, StringInit *Val, IntInit *Shift,
+ raw_ostream &OS);
- // runEnums - Print out enum values for all of the instructions.
- void runEnums(std::ostream &o);
+ // Itinerary information.
+ void GatherItinClasses();
+ unsigned getItinClassNumber(const Record *InstRec);
+
+ // Operand information.
+ void EmitOperandInfo(raw_ostream &OS, OperandInfoMapTy &OperandInfoIDs);
+ std::vector<std::string> GetOperandInfo(const CodeGenInstruction &Inst);
+
+ void DetectRegisterClassBarriers(std::vector<Record*> &Defs,
+ const std::vector<CodeGenRegisterClass> &RCs,
+ std::vector<Record*> &Barriers);
};
+} // End llvm namespace
+
#endif