compilers/lcc-4.2/src/config.h

   1 /* $Id$ */
   2 typedef struct {
   3         unsigned char max_unaligned_load;
   4         Symbol (*rmap)(int);
   5
   6         void (*blkfetch)(int size, int off, int reg, int tmp);
   7         void (*blkstore)(int size, int off, int reg, int tmp);
   8         void (*blkloop)(int dreg, int doff,
   9                          int sreg, int soff,
  10                          int size, int tmps[]);
  11         void (*_label)(Node);
  12         int (*_rule)(void*, int);
  13         short **_nts;
  14         void (*_kids)(Node, int, Node*);
  15         char **_string;
  16         char **_templates;
  17         char *_isinstruction;
  18         char **_ntname;
  19         void (*emit2)(Node);
  20         void (*doarg)(Node);
  21         void (*target)(Node);
  22         void (*clobber)(Node);
  23 } Xinterface;
  24 extern int     askregvar(Symbol, Symbol);
  25 extern void    blkcopy(int, int, int, int, int, int[]);
  26 extern unsigned emitasm(Node, int);
  27 extern int     getregnum(Node);
  28 extern int     mayrecalc(Node);
  29 extern int     mkactual(int, int);
  30 extern void    mkauto(Symbol);
  31 extern Symbol  mkreg(char *, int, int, int);
  32 extern Symbol  mkwildcard(Symbol *);
  33 extern int     move(Node);
  34 extern int     notarget(Node);
  35 extern void    parseflags(int, char **);
  36 extern int     range(Node, int, int);
  37 extern unsigned regloc(Symbol);  /* omit */
  38 extern void    rtarget(Node, int, Symbol);
  39 extern void    setreg(Node, Symbol);
  40 extern void    spill(unsigned, int, Node);
  41 extern int     widens(Node);
  42
  43 extern int      argoffset, maxargoffset;
  44 extern int      bflag, dflag;
  45 extern int      dalign, salign;
  46 extern int      framesize;
  47 extern unsigned freemask[], usedmask[];
  48 extern int      offset, maxoffset;
  49 extern int      swap;
  50 extern unsigned tmask[], vmask[];
  51 typedef struct {
  52         unsigned listed:1;
  53         unsigned registered:1;
  54         unsigned emitted:1;
  55         unsigned copy:1;
  56         unsigned equatable:1;
  57         unsigned spills:1;
  58         unsigned mayrecalc:1;
  59         void *state;
  60         short inst;
  61         Node kids[3];
  62         Node prev, next;
  63         Node prevuse;
  64         short argno;
  65 } Xnode;
  66 typedef struct {
  67         Symbol vbl;
  68         short set;
  69         short number;
  70         unsigned mask;
  71 } *Regnode;
  72 enum { IREG=0, FREG=1 };
  73 typedef struct {
  74         char *name;
  75         unsigned int eaddr;  /* omit */
  76         int offset;
  77         Node lastuse;
  78         int usecount;
  79         Regnode regnode;
  80         Symbol *wildcard;
  81 } Xsymbol;
  82 enum { RX=2 };
  83 typedef struct {
  84         int offset;
  85         unsigned freemask[2];
  86 } Env;
  87
  88 #define LBURG_MAX SHRT_MAX
  89
  90 enum { VREG=(44<<4) };
  91
  92 /* Exported for the front end */
  93 extern void             blockbeg(Env *);
  94 extern void             blockend(Env *);
  95 extern void             emit(Node);
  96 extern Node             gen(Node);
  97
  98 extern unsigned         emitbin(Node, int);
  99
 100 #ifdef NDEBUG
 101 #define debug(x) (void)0
 102 #else
 103 #define debug(x) (void)(dflag&&((x),0))
 104 #endif