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/* PR target/27531 */

/* This test case stressed the register allocator into reloading a LABEL_REF

   on sparc, but didn't add a REG_LABEL note, ultimately causing the assembly

   output to reference a label that had been eliminated.  */

/* { dg-do link } */

/* { dg-options "-O2" } */

typedef struct _IO_FILE FILE;

char const *RCSname;

void *Locks;

void * Head;

struct Revpairs{

    struct Revpairs * rnext;

};

extern char *strchr(const char *s, int c);

extern int fprintf(FILE *, const char *format, ...);

static void getrevpairs (char*);

static int branchflag;

static struct Revpairs *revlist, *Revlst;

extern int warn(const char *msg, char *argv);

extern int error(const char *msg, int c, char *argv);

extern int recentdate(void *foo, void *bar);

char *t;

int main (int argc, char **argv)

{

    FILE *out;

    char *a, **newargv;

    void *currdate;

    int descflag, selectflag;

    int onlylockflag;

    int onlyRCSflag;

    int shownames;

    descflag = selectflag = shownames = 1;

    onlylockflag = onlyRCSflag = 0;

    while (a = *++argv, 0<--argc)

    {

        switch (*a++)

        {

            case 'L':

                onlylockflag = 1;

            case 'N':

                shownames = 0;

            case 'R':

                t = a;

            case 'b':

                branchflag = 1;

            case 'r':

                getrevpairs(a);

        }

        if (onlylockflag && !Locks)

            fprintf(out, "%s\n", RCSname);

        if (shownames)

            while( currdate)

                recentdate(Head, currdate);

    }

}

void getrevpairs(char *argv)

{

    char c;

    struct Revpairs * nextrevpair;

    int separator;

    if (strchr(argv,':'))

        separator = ':';

    else

    {

        if (strchr(argv,'-') )

            warn("`-' is obsolete in `-r%s'; use `:' instead", argv);

        separator = '-';

    }

    for (;;)

    {

        nextrevpair->rnext = revlist;

        for (;; c = *++argv)

        {

            switch (c)

            {

                default:

                    continue;

                case ' ':

                case '\t':

                case '\n':

                    break;

                case ':':

                case '-':

                    if (c == separator)

                        continue;

            }

            break;

        }

        if (!c)

            break;

        error("missing `,' near `%c%s'", c, argv+1);

    }

}

int warn(const char *msg, char *argv)

{

  t = 0;  /* this function needs side-effects.  */

  return 0;

}

int error(const char *msg, int c, char *argv)

{

  t = 0; /* this function needs side-effects.  */

  return 0;

}

int recentdate(void *foo, void *bar)

{

  t = 0; /* this function needs side-effects.  */

  return 0;

}