#include "../cc/cc.h" #include "../vc/v.out.h" /* * vc/mips * Mips 3000 */ #define SZ_CHAR 1 #define SZ_SHORT 2 #define SZ_INT 4 #define SZ_LONG 4 #define SZ_IND 4 #define SZ_FLOAT 4 #define SZ_VLONG 8 #define SZ_DOUBLE 8 #define FNX 100 typedef struct Adr Adr; typedef struct Prog Prog; typedef struct Case Case; typedef struct C1 C1; typedef struct Multab Multab; typedef struct Hintab Hintab; typedef struct Var Var; typedef struct Reg Reg; typedef struct Rgn Rgn; struct Adr { long offset; double dval; char sval[NSNAME]; Ieee ieee; Sym* sym; char type; char reg; char name; char etype; }; #define A ((Adr*)0) #define INDEXED 9 struct Prog { Adr from; Adr to; Prog* link; long lineno; char as; char reg; }; #define P ((Prog*)0) struct Case { Case* link; vlong val; long label; char def; char isv; }; #define C ((Case*)0) struct C1 { vlong val; long label; }; struct Multab { long val; char code[20]; }; struct Hintab { ushort val; char hint[10]; }; struct Var { long offset; Sym* sym; char name; char etype; }; struct Reg { long pc; long rpo; /* reverse post ordering */ Bits set; Bits use1; Bits use2; Bits refbehind; Bits refahead; Bits calbehind; Bits calahead; Bits regdiff; Bits act; long regu; long loop; /* could be shorter */ Reg* log5; long active; Reg* p1; Reg* p2; Reg* p2link; Reg* s1; Reg* s2; Reg* link; Prog* prog; }; #define R ((Reg*)0) #define NRGN 600 struct Rgn { Reg* enter; short cost; short varno; short regno; }; EXTERN long breakpc; EXTERN long nbreak; EXTERN Case* cases; EXTERN Node constnode; EXTERN Node fconstnode; EXTERN long continpc; EXTERN long curarg; EXTERN long cursafe; EXTERN Prog* firstp; EXTERN Prog* lastp; EXTERN long maxargsafe; EXTERN int mnstring; EXTERN Multab multab[20]; EXTERN int hintabsize; EXTERN Node* nodrat; EXTERN Node* nodret; EXTERN Node* nodsafe; EXTERN long nrathole; EXTERN long nstring; EXTERN Prog* p; EXTERN long pc; EXTERN Node regnode; EXTERN char string[NSNAME]; EXTERN Sym* symrathole; EXTERN Node znode; EXTERN Prog zprog; EXTERN int reg[NREG+NREG]; EXTERN long exregoffset; EXTERN long exfregoffset; #define BLOAD(r) band(bnot(r->refbehind), r->refahead) #define BSTORE(r) band(bnot(r->calbehind), r->calahead) #define LOAD(r) (~r->refbehind.b[z] & r->refahead.b[z]) #define STORE(r) (~r->calbehind.b[z] & r->calahead.b[z]) #define bset(a,n) ((a).b[(n)/32]&(1L<<(n)%32)) #define CLOAD 4 #define CREF 5 #define CINF 1000 #define LOOP 3 EXTERN Rgn region[NRGN]; EXTERN Rgn* rgp; EXTERN int nregion; EXTERN int nvar; EXTERN Bits externs; EXTERN Bits params; EXTERN Bits consts; EXTERN Bits addrs; EXTERN long regbits; EXTERN long exregbits; EXTERN int change; EXTERN int suppress; EXTERN Reg* firstr; EXTERN Reg* lastr; EXTERN Reg zreg; EXTERN Reg* freer; EXTERN Var var[NVAR]; EXTERN long* idom; EXTERN Reg** rpo2r; EXTERN long maxnr; extern char* anames[]; extern Hintab hintab[]; /* * sgen.c */ void codgen(Node*, Node*); void gen(Node*); void noretval(int); void xcom(Node*); int bcomplex(Node*, Node*); void usedset(Node*, int); /* * cgen.c */ void cgen(Node*, Node*); void reglcgen(Node*, Node*, Node*); void lcgen(Node*, Node*); void bcgen(Node*, int); void boolgen(Node*, int, Node*); void sugen(Node*, Node*, long); void layout(Node*, Node*, int, int, Node*); /* * txt.c */ void ginit(void); void gclean(void); void nextpc(void); void gargs(Node*, Node*, Node*); void garg1(Node*, Node*, Node*, int, Node**); Node* nodconst(long); Node* nod32const(vlong); Node* nodfconst(double); void nodreg(Node*, Node*, int); void regret(Node*, Node*); void regalloc(Node*, Node*, Node*); void regfree(Node*); void regialloc(Node*, Node*, Node*); void regsalloc(Node*, Node*); void regaalloc1(Node*, Node*); void regaalloc(Node*, Node*); void regind(Node*, Node*); void gprep(Node*, Node*); void raddr(Node*, Prog*); void naddr(Node*, Adr*); void gmove(Node*, Node*); void gins(int a, Node*, Node*); void gopcode(int, Node*, Node*, Node*); int samaddr(Node*, Node*); void gbranch(int); void patch(Prog*, long); int sconst(Node*); int sval(long); void gpseudo(int, Sym*, Node*); /* * swt.c */ int swcmp(const void*, const void*); void doswit(Node*); void swit1(C1*, int, long, Node*); void swit2(C1*, int, long, Node*, Node*); void casf(void); void bitload(Node*, Node*, Node*, Node*, Node*); void bitstore(Node*, Node*, Node*, Node*, Node*); long outstring(char*, long); int mulcon(Node*, Node*); Multab* mulcon0(long); void nullwarn(Node*, Node*); void gextern(Sym*, Node*, long, long); void outcode(void); void ieeedtod(Ieee*, double); /* * list */ void listinit(void); int Pconv(Fmt*); int Aconv(Fmt*); int Dconv(Fmt*); int Sconv(Fmt*); int Nconv(Fmt*); int Bconv(Fmt*); /* * reg.c */ Reg* rega(void); int rcmp(const void*, const void*); void regopt(Prog*); void addmove(Reg*, int, int, int); Bits mkvar(Adr*, int); void prop(Reg*, Bits, Bits); void loopit(Reg*, long); void synch(Reg*, Bits); ulong allreg(ulong, Rgn*); void paint1(Reg*, int); ulong paint2(Reg*, int); void paint3(Reg*, int, long, int); void addreg(Adr*, int); /* * peep.c */ void peep(void); void excise(Reg*); Reg* uniqp(Reg*); Reg* uniqs(Reg*); int regtyp(Adr*); int regzer(Adr*); int anyvar(Adr*); int subprop(Reg*); int copyprop(Reg*); int copy1(Adr*, Adr*, Reg*, int); int copyu(Prog*, Adr*, Adr*); int copyas(Adr*, Adr*); int copyau(Adr*, Adr*); int copyau1(Prog*, Adr*); int copysub(Adr*, Adr*, Adr*, int); int copysub1(Prog*, Adr*, Adr*, int); long RtoB(int); long FtoB(int); int BtoR(long); int BtoF(long); #pragma varargck type "A" int #pragma varargck type "B" Bits #pragma varargck type "D" Adr* #pragma varargck type "N" Adr* #pragma varargck type "P" Prog* #pragma varargck type "S" char*