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// Inferno utils/5c/gc.h
// http://code.google.com/p/inferno-os/source/browse/utils/5c/gc.h
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include <u.h>
#include "../cc/cc.h"
#include "../5l/5.out.h"
/*
* 5c/arm
* Arm 7500
*/
#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;
#define R0ISZERO 0
struct Adr
{
int32 offset;
int32 offset2;
double dval;
char sval[NSNAME];
Ieee ieee;
Sym* sym;
char type;
uchar reg;
char name;
char etype;
};
#define A ((Adr*)0)
#define INDEXED 9
struct Prog
{
Adr from;
Adr to;
Prog* link;
int32 lineno;
char as;
uchar reg;
uchar scond;
};
#define P ((Prog*)0)
struct Case
{
Case* link;
int32 val;
int32 label;
char def;
char isv;
};
#define C ((Case*)0)
struct C1
{
int32 val;
int32 label;
};
struct Multab
{
int32 val;
char code[20];
};
struct Hintab
{
ushort val;
char hint[10];
};
struct Var
{
int32 offset;
Sym* sym;
char name;
char etype;
};
struct Reg
{
int32 pc;
int32 rpo; /* reverse post ordering */
Bits set;
Bits use1;
Bits use2;
Bits refbehind;
Bits refahead;
Bits calbehind;
Bits calahead;
Bits regdiff;
Bits act;
int32 regu;
int32 loop; /* could be shorter */
Reg* log5;
int32 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 int32 breakpc;
EXTERN int32 nbreak;
EXTERN Case* cases;
EXTERN Node constnode;
EXTERN Node fconstnode;
EXTERN int32 continpc;
EXTERN int32 curarg;
EXTERN int32 cursafe;
EXTERN Prog* firstp;
EXTERN int32 isbigendian;
EXTERN Prog* lastp;
EXTERN int32 maxargsafe;
EXTERN int mnstring;
EXTERN Multab multab[20];
EXTERN int retok;
extern int hintabsize;
EXTERN Node* nodrat;
EXTERN Node* nodret;
EXTERN Node* nodsafe;
EXTERN int32 nrathole;
EXTERN int32 nstring;
EXTERN Prog* p;
EXTERN int32 pc;
EXTERN Node regnode;
EXTERN char string[NSNAME];
EXTERN Sym* symrathole;
EXTERN Node znode;
EXTERN Prog zprog;
EXTERN char reg[NREG+NFREG];
EXTERN int32 exregoffset;
EXTERN int32 exfregoffset;
EXTERN int suppress;
#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 int32 regbits;
EXTERN int32 exregbits;
EXTERN int change;
EXTERN Reg* firstr;
EXTERN Reg* lastr;
EXTERN Reg zreg;
EXTERN Reg* freer;
EXTERN Var var[NVAR];
EXTERN int32* idom;
EXTERN Reg** rpo2r;
EXTERN int32 maxnr;
extern char* anames[];
extern Hintab hintab[];
/*
* sgen.c
*/
void codgen(Node*, Node*);
void gen(Node*);
void noretval(int);
void usedset(Node*, int);
void xcom(Node*);
int bcomplex(Node*, Node*);
Prog* gtext(Sym*, int32);
vlong argsize(void);
/*
* 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*, int32);
void layout(Node*, Node*, int, int, Node*);
void cgenrel(Node*, 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(int32);
Node* nod32const(vlong);
Node* nodfconst(double);
void nodreg(Node*, Node*, int);
void regret(Node*, Node*);
int tmpreg(void);
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 gmovm(Node*, Node*, int);
void gmove(Node*, Node*);
void gmover(Node*, Node*);
void gins(int a, Node*, Node*);
void gopcode(int, Node*, Node*, Node*);
int samaddr(Node*, Node*);
void gbranch(int);
void patch(Prog*, int32);
int sconst(Node*);
int sval(int32);
void gpseudo(int, Sym*, Node*);
/*
* swt.c
*/
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*);
int mulcon(Node*, Node*);
Multab* mulcon0(int32);
void nullwarn(Node*, Node*);
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*);
int Rconv(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*, 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(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 shiftprop(Reg*);
void constprop(Adr*, Adr*, 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);
int32 RtoB(int);
int32 FtoB(int);
int BtoR(int32);
int BtoF(int32);
void predicate(void);
int isbranch(Prog *);
int predicable(Prog *p);
int modifiescpsr(Prog *p);
#pragma varargck type "A" int
#pragma varargck type "B" Bits
#pragma varargck type "D" Adr*
#pragma varargck type "N" Adr*
#pragma varargck type "R" Adr*
#pragma varargck type "P" Prog*
#pragma varargck type "S" char*
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