#include <u.h>
#include "../cc/cc.h"
#include "../6l/6.out.h"
#define SZ_CHAR 1
#define SZ_SHORT 2
#define SZ_INT 4
#define SZ_LONG 4
#define SZ_IND 8
#define SZ_FLOAT 4
#define SZ_VLONG 8
#define SZ_DOUBLE 8
#define FNX 100
typedef struct Case Case;
typedef struct C1 C1;
typedef struct Reg Reg;
typedef struct Rgn Rgn;
typedef struct Renv Renv;
EXTERN struct
{
Node* regtree;
Node* basetree;
short scale;
short reg;
short ptr;
} idx;
#define INDEXED 9
#define A ((Addr*)0)
#define P ((Prog*)0)
struct Case
{
Case* link;
vlong val;
int32 label;
char def;
char isv;
};
#define C ((Case*)0)
struct C1
{
vlong val;
int32 label;
};
struct Reg
{
int32 pc;
int32 rpo;
Bits set;
Bits use1;
Bits use2;
Bits refbehind;
Bits refahead;
Bits calbehind;
Bits calahead;
Bits regdiff;
Bits act;
int32 regu;
int32 loop;
Reg* log5;
int32 active;
Reg* p1;
Reg* p2;
Reg* p2link;
Reg* s1;
Reg* s2;
Reg* link;
Prog* prog;
};
#define R ((Reg*)0)
struct Renv
{
int safe;
Node base;
Node* saved;
Node* scope;
};
#define NRGN 600
struct Rgn
{
Reg* enter;
short cost;
short varno;
short regno;
};
EXTERN int32 breakpc;
EXTERN int32 nbreak;
EXTERN Case* cases;
EXTERN Node constnode;
EXTERN Node fconstnode;
EXTERN Node vconstnode;
EXTERN int32 continpc;
EXTERN int32 curarg;
EXTERN int32 cursafe;
EXTERN Prog* lastp;
EXTERN int32 maxargsafe;
EXTERN int mnstring;
EXTERN int retok;
EXTERN Node* nodrat;
EXTERN Node* nodret;
EXTERN Node* nodsafe;
EXTERN int32 nrathole;
EXTERN int32 nstring;
EXTERN Prog* p;
EXTERN int32 pc;
EXTERN Node lregnode;
EXTERN Node qregnode;
EXTERN char string[NSNAME];
EXTERN Sym* symrathole;
EXTERN Node znode;
EXTERN Prog zprog;
EXTERN int reg[D_NONE];
EXTERN int32 exregoffset;
EXTERN int32 exfregoffset;
EXTERN uchar typechlpv[NTYPE];
#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 5
#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 int32 regbits;
EXTERN int32 exregbits;
EXTERN int change;
EXTERN int suppress;
EXTERN Reg* firstr;
EXTERN Reg* lastr;
EXTERN Reg zreg;
EXTERN Reg* freer;
EXTERN int32* idom;
EXTERN Reg** rpo2r;
EXTERN int32 maxnr;
extern char* anames[];
void codgen(Node*, Node*);
void gen(Node*);
void noretval(int);
void usedset(Node*, int);
void xcom(Node*);
void indx(Node*);
int bcomplex(Node*, Node*);
Prog* gtext(Sym*, int32);
vlong argsize(void);
void zeroregm(Node*);
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*, int32);
int needreg(Node*, int);
int hardconst(Node*);
int immconst(Node*);
void ginit(void);
void gclean(void);
void nextpc(void);
void gargs(Node*, Node*, Node*);
void garg1(Node*, Node*, Node*, int, Node**);
Node* nodconst(int32);
Node* nodfconst(double);
Node* nodgconst(vlong, Type*);
int nodreg(Node*, Node*, int);
int isreg(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 naddr(Node*, Addr*);
void gcmp(int, Node*, vlong);
void gmove(Node*, Node*);
void gins(int a, Node*, Node*);
void gopcode(int, Type*, Node*, Node*);
int samaddr(Node*, Node*);
void gbranch(int);
void patch(Prog*, int32);
int sconst(Node*);
void gpseudo(int, Sym*, Node*);
void gprefetch(Node*);
void gpcdata(int, int);
int swcmp(const void*, const void*);
void doswit(Node*);
void swit1(C1*, int, int32, Node*);
void swit2(C1*, int, int32, Node*);
void newcase(void);
void bitload(Node*, Node*, Node*, Node*, Node*);
void bitstore(Node*, Node*, Node*, Node*, Node*);
int32 outstring(char*, int32);
void nullwarn(Node*, Node*);
void sextern(Sym*, Node*, int32, int32);
void gextern(Sym*, Node*, int32, int32);
void outcode(void);
void listinit(void);
Reg* rega(void);
int rcmp(const void*, const void*);
void regopt(Prog*);
void addmove(Reg*, int, int, int);
Bits mkvar(Reg*, Addr*);
void prop(Reg*, Bits, Bits);
void loopit(Reg*, int32);
void synch(Reg*, Bits);
uint32 allreg(uint32, Rgn*);
void paint1(Reg*, int);
uint32 paint2(Reg*, int);
void paint3(Reg*, int, int32, int);
void addreg(Addr*, int);
void peep(void);
void excise(Reg*);
Reg* uniqp(Reg*);
Reg* uniqs(Reg*);
int regtyp(Addr*);
int anyvar(Addr*);
int subprop(Reg*);
int copyprop(Reg*);
int copy1(Addr*, Addr*, Reg*, int);
int copyu(Prog*, Addr*, Addr*);
int copyas(Addr*, Addr*);
int copyau(Addr*, Addr*);
int copysub(Addr*, Addr*, Addr*, int);
int copysub1(Prog*, Addr*, Addr*, int);
int32 RtoB(int);
int32 FtoB(int);
int BtoR(int32);
int BtoF(int32);
#define D_HI D_NONE
#define D_LO D_NONE
void comtarg(void);
int cond(int);
int com64(Node*);
void com64init(void);
void bool64(Node*);
int32 lo64v(Node*);
int32 hi64v(Node*);
Node* lo64(Node*);
Node* hi64(Node*);
void sdivgen(Node*, Node*, Node*, Node*);
void udivgen(Node*, Node*, Node*, Node*);
void sdiv2(int32, int, Node*, Node*);
void smod2(int32, int, Node*, Node*);
void mulgen(Type*, Node*, Node*);
void genmuladd(Node*, Node*, int, Node*);
void shiftit(Type*, Node*, Node*);
#define D_X7 (D_X0+7)
void fgopcode(int, Node*, Node*, int, int);