Return to optim.h CVS log

Up to [Research Unix] / researchv9 / jerq / sgs / optim

Annotation of researchv9/jerq/sgs/optim/optim.h, revision 1.1

1.1     ! root        1: /*     static char  ID[] = "@(#) optim.h: 1.7 1/20/84";        */
        !             2: 
        !             3: /*     machine independent include file for code improver */
        !             4: 
        !             5: #include <stdio.h>
        !             6: #include <ctype.h>
        !             7: #include "defs"
        !             8: 
        !             9: #ifndef MEMFCN /* remove after 5.0 when memcpy is in all UNIX releases */
        !            10: #define memcpy strncpy
        !            11: #endif
        !            12: 
        !            13: #ifndef MAXOPS
        !            14: #define MAXOPS 1
        !            15: #endif
        !            16: 
        !            17: /* booleans */
        !            18: 
        !            19: typedef int boolean;
        !            20: #define false  0
        !            21: #define true   1
        !            22: 
        !            23: /* predefined "opcodes" for various nodes */
        !            24: 
        !            25: #define GHOST  0               /* temporary, to prevent linking node in */
        !            26: #define TAIL   0               /* end of text list */
        !            27: #define MISC   1               /* miscellaneous instruction */
        !            28: #define FILTER 2               /* nodes to be filtered before optim */
        !            29: 
        !            30: #ifdef LIVEDEAD
        !            31: extern void ldanal();
        !            32: #if LIVEDEAD - 0 < 2
        !            33: #undef LIVEDEAD
        !            34: #define LIVEDEAD       16
        !            35: #endif
        !            36: #endif
        !            37: 
        !            38: /* structure of each text node */
        !            39: 
        !            40: typedef struct node {
        !            41:        struct node *forw;      /* forward link */
        !            42:        struct node *back;      /* backward link */
        !            43:        char *ops[MAXOPS + 1];  /* opcode or label and operand field strings */
        !            44: #ifdef IDVAL
        !            45:        IDTYPE uniqid;          /* unique identification for this node */
        !            46: #endif
        !            47:        unsigned short op;      /* operation code */
        !            48: #ifdef LIVEDEAD
        !            49:        unsigned
        !            50:            nlive:LIVEDEAD,     /* registers used by instruction */
        !            51:            ndead:LIVEDEAD;     /* registers set but not used by instruction */
        !            52: #endif
        !            53: #ifdef USERDATA
        !            54:        USERTYPE userdata;      /* user-defined data for this node */
        !            55: #endif
        !            56: } NODE;
        !            57: 
        !            58: #define opcode ops[0]
        !            59: #define op1    ops[1]
        !            60: #if MAXOPS > 1
        !            61: #define op2    ops[2]
        !            62: #if MAXOPS > 2
        !            63: #define op3    ops[3]
        !            64: #if MAXOPS > 3
        !            65: #define op4    ops[4]
        !            66: #if MAXOPS > 4
        !            67: #define op5    ops[5]
        !            68: #if MAXOPS > 5
        !            69: #define op6    ops[6]
        !            70: #endif
        !            71: #endif
        !            72: #endif
        !            73: #endif
        !            74: #endif
        !            75: 
        !            76: /* structure of non-branch text reference node */
        !            77: 
        !            78: typedef struct ref {
        !            79:        char *lab;              /* label referenced */
        !            80:        struct ref *nextref;    /* link to next ref */
        !            81: } REF;
        !            82: 
        !            83: /* externals */
        !            84: 
        !            85: extern NODE n0;                        /* header node of text list */
        !            86: extern NODE ntail;             /* trailer node of text list */
        !            87: extern NODE *lastnode;         /* pointer to last node on text list */
        !            88: extern REF *lastref;           /* pointer to last label reference */
        !            89: 
        !            90: extern int dflag;              /* display live-dead info */
        !            91: extern int sflag;              /* statistics (on stderr) */
        !            92: extern int ndisc;              /* # of instructions discarded */
        !            93: extern int ninst;              /* total # of instructions */
        !            94: extern int npass;              /* # of times through this function */
        !            95: extern int fnum;               /* # of this function */
        !            96: 
        !            97: extern NODE *Saveop();
        !            98: extern boolean same(), sameaddr();
        !            99: extern char *getspace(), *strcpy(), *memcpy(), *xalloc(), *memset();
        !           100: extern void addref(), fatal(), filter(), init(), optim(), prtext(), xfree();
        !           101: 
        !           102: /* user-supplied functions or macros */
        !           103: 
        !           104: #ifndef getp
        !           105: extern char *getp();
        !           106: #endif
        !           107: #ifndef newlab
        !           108: extern char *newlab();
        !           109: #endif
        !           110: 
        !           111: #define saveop(opn, str, len, op) \
        !           112:            (void) Saveop((opn), (str), (unsigned)(len), (op))
        !           113: #define addtail(p)             /* superfluous */
        !           114: #define appinst()              /* superfluous */
        !           115: #define appmisc(str, len)      saveop(0, (str), (len), MISC)
        !           116: #define appfl(str, len)                saveop(0, (str), (len), FILTER)
        !           117: #define applbl(str, len) \
        !           118:        (setlab(Saveop(0, (str), (unsigned)(len), MISC)), --ninst)
        !           119: #define ALLN(p)                        p = n0.forw; p != &ntail; p = p->forw
        !           120: #define PRINTF                 (void) printf
        !           121: #define FPRINTF                        (void) fprintf
        !           122: #define SPRINTF                        (void) sprintf
        !           123: #define PUTCHAR(c)             (void) putchar(c)
        !           124: #define DELNODE(p)             ((p)->back->forw = (p)->forw, \
        !           125:                                    (p)->forw->back = (p)->back)
        !           126: #define APPNODE(p, q)          PUTNODE((p), (q), back, forw)
        !           127: #define INSNODE(p, q)          PUTNODE((p), (q), forw, back)
        !           128: #define PUTNODE(p, q, f, b)    ((p)->f = (q), (p)->b = (q)->b, \
        !           129:                                    (q)->b = (q)->b->f = (p))
        !           130: #define GETSTR(type)           (type *) getspace(sizeof(type))
        !           131: #define COPY(str, len) ((len) != 0 ? memcpy(getspace(len), str, (int)(len)) : str)
        !           132: #ifndef ISLABREF
        !           133: #define ISLABREF(p)    0
        !           134: #endif

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.