lib/Target/PIC16/PIC16TargetAsmInfo.h

   1 //=====-- PIC16TargetAsmInfo.h - PIC16 asm properties ---------*- C++ -*--====//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file contains the declaration of the PIC16TargetAsmInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef PIC16TARGETASMINFO_H
  15 #define PIC16TARGETASMINFO_H
  16
  17 #include "PIC16.h"
  18 #include "llvm/Target/TargetAsmInfo.h"
  19 #include <vector>
  20 #include "llvm/Module.h"
  21 #define DataBankSize 80
  22 namespace llvm {
  23
  24   // Forward declaration.
  25   class PIC16TargetMachine;
  26   class GlobalVariable;
  27
  28   // PIC16 Splits the global data into mulitple udata and idata sections.
  29   // Each udata and idata section needs to contain a list of globals that
  30   // they contain, in order to avoid scanning over all the global values
  31   // again and printing only those that match the current section.
  32   // Keeping values inside the sections make printing a section much easier.
  33   struct PIC16Section {
  34       const Section *S_; // Connection to actual Section.
  35       unsigned Size;  // Total size of the objects contained.
  36       std::vector<const GlobalVariable*> Items;
  37
  38       PIC16Section (const Section *s) { S_ = s; Size = 0; }
  39   };
  40
  41   struct PIC16TargetAsmInfo : public TargetAsmInfo {
  42     std::string getSectionNameForSym(const std::string &Sym) const;
  43     PIC16TargetAsmInfo(const PIC16TargetMachine &TM);
  44     mutable std::vector<PIC16Section *> BSSSections;
  45     mutable std::vector<PIC16Section *> IDATASections;
  46     mutable std::vector<PIC16Section *> AutosSections;
  47     mutable PIC16Section *ROSection;
  48     mutable PIC16Section *ExternalVarDecls;
  49     mutable PIC16Section *ExternalVarDefs;
  50     virtual ~PIC16TargetAsmInfo();
  51
  52     private:
  53     const char *RomData8bitsDirective;
  54     const char *RomData16bitsDirective;
  55     const char *RomData32bitsDirective;
  56     const char *getRomDirective(unsigned size) const;
  57     virtual const char *getASDirective(unsigned size, unsigned AS) const;
  58     const Section *getBSSSectionForGlobal(const GlobalVariable *GV) const;
  59     const Section *getIDATASectionForGlobal(const GlobalVariable *GV) const;
  60     const Section *getSectionForAuto(const GlobalVariable *GV) const;
  61     virtual const Section *SelectSectionForGlobal(const GlobalValue *GV) const;
  62
  63
  64     public:
  65     void SetSectionForGVs(Module &M);
  66     std::vector<PIC16Section *> getBSSSections() const {
  67       return BSSSections;
  68     }
  69     std::vector<PIC16Section *> getIDATASections()  const {
  70       return IDATASections;
  71     }
  72     std::vector<PIC16Section *> getAutosSections()  const {
  73       return AutosSections;
  74     }
  75   };
  76
  77 } // namespace llvm
  78
  79 #endif